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 UNITED STATES
 SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
FORM 10-K
FORM 10-K
þANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 OR
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the Fiscal Year Ended
December 31, 20182019
Commission File No.001-16209
archlogorgbsolida41.jpg
ARCH CAPITAL GROUP LTD.
(Exact name of registrant as specified in its charter)
BermudaNot applicable98-0374481
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
Waterloo House, Ground Floor 
100 Pitts Bay Road,PembrokeHM 08,Bermuda(441)278-9250
(Address of principal executive offices)(Registrant’s telephone number, including area code)


Securities registered pursuant to Section 12(b) of the Exchange Act:
Title of each classTrading Symbol (s)Name of each exchange on which registered
Common Shares, $0.0011 par value per shareNASDAQ Stock Market (Common Shares)
5.25% Non-Cumulative Preferred Shares, Series E, $0.01 par value per shareACGLNASDAQStock Market
Depositary shares, each representing a 1/1,000th interest in a 5.25% Series E preferred share
ACGLPNASDAQStock Market
Depositary shares, each representing a 1/1,000th interest in a 5.45% Non-Cumulative Preferred Shares, Series F $0.01 par value perpreferred share
ACGLONASDAQStock Market


Securities registered pursuant to Section 12(g) of the Exchange Act: None


Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yesþ   No o


Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.
Yes oNoþ


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yesþ     No o
        
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yesþ     No o


Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o


Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.


Large accelerated Filerþ Accelerated Filer o Non-accelerated Filer o Smaller reporting company o Emerging Growth Company o


If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o  No þ


The aggregate market value of the voting and non-voting common equity held by non-affiliates, computed by reference to the closing price as reported by the NASDAQ Stock Market as of the last business day of the Registrant’s most recently completed second fiscal quarter, was approximately $10.3$14.6 billion.


As of February 25, 2019,2020, there were 402,529,670406,658,701 of the registrant’s common shares outstanding.
DOCUMENTS INCORPORATED BY REFERENCE
Portions of Part III and Part IVincorporate by reference our definitive proxy statement for the 2020 annual meeting of shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A before May 1, 2020.
Portions of Part III and Part IVincorporate by reference our definitive proxy statement for the 2019 annual meeting of shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A before May 1, 2019.
  




ARCH CAPITAL GROUP LTD.
TABLE OF CONTENTS
   
Item Page
   
PART I
   
ITEM 1.
ITEM 1A.
ITEM 1B.
ITEM 2.
ITEM 3.
ITEM 4.
   
PART II
   
ITEM 5.
ITEM 6.
ITEM 7.
ITEM 7A.
ITEM 8.
ITEM 9.
ITEM 9A.
ITEM 9B.
   
PART III
   
ITEM 10.
ITEM 11.
ITEM 12.
ITEM 13.
ITEM 14.
   
PART IV
   
ITEM 15.
ITEM 16.



Cautionary Note Regarding Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 (“PSLRA”) provides a “safe harbor” for forward-looking statements. This report or any other written or oral statements made by or on behalf of us may include forward-looking statements, which reflect our current views with respect to future events and financial performance. All statements other than statements of historical fact included in or incorporated by reference in this report are forward-looking statements. Forward-looking statements, for purposes of the PSLRA or otherwise, can generally be identified by the use of forward-looking terminology such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe” or “continue” and similar statements of a future or forward-looking nature or their negative or variations or similar terminology.
Forward-looking statements involve our current assessment of risks and uncertainties. Actual events and results may differ materially from those expressed or implied in these statements. Important factors that could cause actual events or results to differ materially from those indicated in such statements are discussed below, elsewhere in this report and in our periodic reports filed with the Securities and Exchange Commission (“SEC”), and include:
our ability to successfully implement our business strategy during “soft” as well as “hard” markets;
acceptance of our business strategy, security and financial condition by rating agencies and regulators, as well as by brokers and our insureds and reinsureds;
the integration of any businesses we have acquired or may acquire into our existing operations;
our ability to maintain or improve our ratings, which may be affected by our ability to raise additional equity or debt financings, by ratings agencies’ existing or new policies and practices, as well as other factors described herein;
general economic and market conditions (including inflation, interest rates, unemployment, housing prices, foreign currency exchange rates, prevailing credit terms and the depth and duration of a recession) and conditions specific to the reinsurance and insurance markets (including the length and magnitude of the current “soft” market) in which we operate;
competition, including increased competition, on the basis of pricing, capacity (including alternative sources of capital), coverage terms, or other factors;
developments in the world’s financial and capital markets and our access to such markets;
our ability to successfully enhance, integrate and maintain operating procedures (including information technology) to effectively support our current and new business;
the loss of key personnel;
accuracy of those estimates and judgments utilized in the preparation of our financial statements, including those related to revenue recognition, insurance and other reserves, reinsurance recoverables, investment valuations, intangible assets, bad debts, income taxes, contingencies and litigation, and any determination to use the deposit method of accounting, which for a relatively new insurance and reinsurance company, like our company, are even more difficult to make than those made in a mature company since relatively limited historical information has been reported to us through December 31, 2018;accounting;
greater than expected loss ratios on business written by us and adverse development on claim and/or claim expense liabilities related to business written by our insurance and reinsurance subsidiaries;
severity and/or frequency of losses;
claims for natural or man-made catastrophic events or severe economic events in our insurance, reinsurance and mortgage businesses could cause large losses and substantial volatility in our results of operations;
the effect of climate change on our business;
the effect of contagious diseases (including coronavirus) on our business;
acts of terrorism, political unrest and other hostilities or other unforecasted and unpredictable events;
availability to us of reinsurance to manage our gross and net exposures and the cost of such reinsurance;
the failure of reinsurers, managing general agents, third party administrators or others to meet their obligations to us;
the timing of loss payments being faster or the receipt of reinsurance recoverables being slower than anticipated by us;
our investment performance, including legislative or regulatory developments that may adversely affect the fair value of our investments;



ARCH CAPITAL12019 FORM 10-K




changes in general economic conditions, including new or continued sovereign debt concerns in Eurozone countries or downgrades of U.S. securities by credit rating agencies, which could affect our business, financial condition and results of operations;
changes in the method for determining the London Inter-bank Offered Rate (“LIBOR”) and the potential replacement of LIBOR;
the volatility of our shareholders’ equity from foreign currency fluctuations, which could increase due to us not matching portions of our projected liabilities in foreign currencies with investments in the same currencies;
changes in accounting principles or policies or in our application of such accounting principles or policies;
changes in the political environment of certain countries in which we operate or underwrite business;
a disruption caused by cyber-attacks or other technology breaches or failures on us or our business partners and service providers, which could negatively impact our business and/or expose us to litigation;
statutory or regulatory developments, including as to tax matters and insurance and other regulatory matters such as the adoption of proposed legislation that would affect Bermuda-headquartered companies and/or Bermuda-based insurers or reinsurers and/or changes in regulations or tax laws applicable to us, our subsidiaries, brokers or customers, including the recently enacted Tax Cuts and Jobs Act of 2017; and
the other matters set forth under Item 1A “Risk Factors,” Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other sections of this Annual Report on Form 10-K, as well as the other factors set forth in Arch Capital Group Ltd.’s other documents on file with the SEC, and management’s response to any of the aforementioned factors.
All subsequent written and oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these cautionary statements. The foregoing review of important factors should not be construed as exhaustive and should be read in conjunction with other cautionary statements that are included herein or elsewhere. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.





ARCH CAPITAL22019 FORM 10-K




PART I

ITEM 1.
BUSINESS
ITEM 1. BUSINESS
As used in this report, references to “we,” “us,” “our,” “Arch” or the “Company” refer to the consolidated operations of Arch Capital Group Ltd. (“Arch Capital”) and its subsidiaries. Tabular amounts are in U.S. Dollars in thousands, except share amounts, unless otherwise noted. We refer you to Item 1A “Risk Factors” for a discussion of risk factors relating to our business.
OUR COMPANY

General
Arch Capital, a Bermuda public limited liability company with $11.17$13.23 billion in capital at December 31, 2018,2019, provides insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries. While we are positioned to provide a full range of property, casualty and mortgage insurance and reinsurance lines, we focus on writing specialty lines of insurance and reinsurance. For 2018,2019, we wrote $5.35$6.04 billion of net premiums and reported net income available to Arch common shareholders of $713.6 million.$1.59 billion. Book value per share was $21.52$26.42 at December 31, 2018,2019, compared to $20.30$21.52 per share at December 31, 2017.2018.
Arch Capital’s registered office is located at Clarendon House, 2 Church Street, Hamilton HM 11, Bermuda (telephone number: (441) 295-1422), and its principal executive offices are located at Waterloo House, Ground Floor, 100 Pitts Bay Road, Pembroke HM 08, Bermuda (telephone number: (441) 278-9250). Arch Capital makes available free of charge through its website, located at www.archcapgroup.com, its annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC (such as Arch Capital) and the address of that site is www.sec.gov.
Our History
Arch Capital was formed in September 2000 and became the sole shareholder of Arch Capital Group (U.S.) Inc. (“Arch-U.S.”) pursuant to an internal reorganization transaction completed in November 2000. In October 2001, Arch Capital launched an underwriting initiative to meet current and future demand in the global insurance and reinsurance markets that included the recruitment of new management teams and an equity capital infusion of $763.2 million. Since that time, wemillion which created a strong
 
capital base that was unencumbered by significant pre-2002 risks. Since then, we have attracted a proven management team with extensive industry experience and enhanced our existing global underwriting platform for our insurance, reinsurance and reinsurance businesses. It is our belief that our underwriting platform, our experienced management team and our strong capital base that is unencumbered by significant pre-2002 risks have enabled us to establish a strong presence in the globalmortgage insurance and reinsurance markets.businesses as described below.
Prior to the 2001 underwriting initiative, ourOur insurance underwriting platform initially consisted of Arch Insurance (Bermuda), a division of Arch Reinsurance Ltd. (“Arch Re Bermuda”), our Bermuda-based reinsurer and insurer, and our U.S.-licensed insurers, Arch Insurance Company (“Arch Insurance”), Arch Excess & Surplus Insurance Company (“Arch E&S”), Arch Specialty Insurance Company (“Arch Specialty”) and Arch Indemnity Insurance Company (“Arch Indemnity”).
We established Arch Insurance Company (Europe)(UK) Limited (“Arch Insurance Company Europe”(U.K.)”), our United Kingdom-based subsidiary, in 2004, and we expanded our North American presence when Arch Insurance opened a branch office in Canada in 2005. In 2013, Arch Insurance Canada Ltd. (“Arch Insurance Canada”), a Canada domestic company, commenced operations and replaced the branch office. In 2009, we established a managing agent and syndicate 2012 (“Arch Syndicate 2012”) at Lloyd’s of London (“Lloyd’s”). In December and in 2018, we completed the acquisition ofacquired McNeil & Company, Inc. (“McNeil”), a U.S. nationwide leader in specialized risk management and program administration headquarteredadministration.
We expanded our insurance platform in Cortland, New York.2019 through two acquisitions. In addition,January 2019 we acquired a book of U.K. commercial lines business from Ardonagh Group and are writing this business through Arch Insurance (U.K.) (“Arch U.K. Regional Division”). In November 2019, we completed the acquisition of Barbican Group Holdings Limited (“Barbican Holdings”), a Guernsey company, and its subsidiaries, including Barbican Managing Agency Limited (“BMAL”) and Lloyd’s Syndicate 1955 (“Barbican Syndicate 1955”). BMAL also provides Managing Agency services to Third Party Capital Syndicate 1856 (“Arcus”). Barbican Holdings also includes Castel Underwriting Agencies Limited (“Castel”) and other associated entities (collectively, “Barbican”). We also acquired U.K. commercial lines business from Ardonagh Group in January 2019.2019, and this business is now written through Arch Insurance (U.K.) (“Arch U.K. Regional Division”). See “Operations—Insurance Operations” for further details on our insurance operations.
Prior to the 2001 underwriting initiative, our
Our reinsurance underwriting platform initially consisted of Arch Re Bermuda and Arch Reinsurance Company (“Arch Re U.S.”), our U.S.-licensed reinsurer. Our reinsurance operations


ARCH CAPITAL32019 FORM 10-K



in Europe began in 2006 with the formation of a Swiss branch of Arch Re Bermuda, and the formation of a Danish underwriting agency in 2007. In addition to the U.S. reinsurance treaty activities of Arch Re U.S., we launched our property facultative reinsurance underwriting operations in 2007, which underwrite in the U.S., Canada and Europe. In 2008, we formed Arch Reinsurance Europe Designated Activity Company (“Arch Re Europe”), our Ireland-based reinsurance company, which replaced the Swiss branch. We launched treaty operations in Canada in 2011 and the following year we acquired the credit and surety reinsurance operations of Ariel Reinsurance Company Ltd. In 2015, we


ARCH CAPITAL42018 FORM 10-K



obtained complete ownership and effective control of Gulf Reinsurance Limited (“Gulf Re”), previously a joint venture.Barbican in November 2019 also contributed to our reinsurance operations. See “Operations—Reinsurance Operations” for further details on our reinsurance operations.
Our mortgage operations include U.S. and international mortgage insurance and reinsurance operations as well as participation in government sponsored enterprise (“GSE”) credit risk sharingrisk-sharing transactions. Formed in 2011, Arch Insurance (EU) Designated Activity Company (formerly, Arch Mortgage Insurance Designated Activity Company) (“Arch Insurance (EU)”), provides mortgage insurance products and services to the European market.
Our mortgage platform was built through the acquisition of CMG Mortgage Insurance Company in 2014 (subsequently renamed Arch Mortgage Insurance Company) and. We further expanded our U.S. operations in 2016 through the acquisition of United Guaranty Corporation (“UGC”) (including United Guaranty Residential Insurance Company), from American International Group, Inc. (“AIG”), which closed at the end of 2016. In 2017, we completed the acquisition of. We acquired AIG United Guaranty Insurance (Asia) Limited (renamed “Arch MI Asia Limited”) from AIG.AIG in 2017. In January 2019, Arch LMI Pty Ltd (“Arch LMI”) was authorized by the Australian Prudential Regulation Authority (“APRA”) to write lenders’ mortgage insurance on a direct basis in Australia.
Our U.S. primary mortgage operations provide mortgage insurance products and services to the U.S. market. These operations include providers that are also approved as eligible mortgage insurers by Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”), each a GSE. Arch Mortgage Insurance Designated Activity Company (“Arch MI Europe”), provides mortgage insurance products and services to the European market. In January 2019, Arch LMI Pty Ltd (“Arch LMI”) was authorized by the Australian Prudential Regulation Authority (“APRA”) to write lenders’ mortgage insurance on a direct basis in Australia.
The mortgage operations also include participation in GSE credit risk-sharing transactions and direct mortgage insurance to U.S. mortgage lenders with respect to mortgages that lenders intend to retain in portfolio or include in non-agency securitizations along with mortgage reinsurance for the U.S. and Australian markets.on a global basis. See “Operations—Mortgage Operations” for further details on our mortgage operations.
It is our belief that our underwriting platform, our experienced management team and our strong capital base have enabled us to establish a strong presence in the markets we participate in.
In 2014 we acquired approximately 11% of Watford Holdings Ltd. Watford Holdings Ltd. is the parent of Watford Re Ltd., a multi-line Bermuda reinsurance company (together with Watford Holdings Ltd., “Watford Re”“Watford”). In 2017, we acquired approximately 25% of Premia Holdings Ltd. Premia Holdings Ltd. is the parent of Premia Reinsurance Ltd., a multi-line Bermuda reinsurance company (together with Premia Holdings Ltd., “Premia Re”“Premia”). See “Operations—Other Operations” for further details on Watford Re and Premia Re.Premia.
The board of directors of Arch Capital (the “Board”) has authorized the investment in Arch Capital’s common shares through a share repurchase program. Repurchases under the share repurchase program may be effected from time to time in open market or privately negotiated transactions through December 31, 2019.2021. Since the inception of the share repurchase
program in February 2007 through December 31, 2018,2019, Arch Capital has repurchased 386.2386.3 million common shares for an aggregate purchase price of $3.97 billion. At December 31, 2018,2019, the total remaining authorization under the share repurchase program was $163.7 million.$1.00 billion.
OPERATIONS

We classify our businesses into three underwriting segments — insurance, reinsurance and mortgage — and two other operating segments — ‘other’ and corporate (non-underwriting). For an analysis of our underwriting results by segment, see note 4, “Segment Information,” to our consolidated financial statements in Item 8 and “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Results of Operations.”
Insurance Operations
Our insurance operations are conducted in Bermuda, the United States, Europe, Canada, and Australia. Our insurance operations in Bermuda are conducted through Arch Insurance (Bermuda), a division of Arch Re Bermuda, and Alternative Re Limited.
In the U.S., our insurance group’s principal insurance subsidiaries are Arch Insurance, Arch Specialty, Arch Indemnity and Arch E&S. Arch Insurance is an admitted insurer in 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands and Guam. Arch Specialty is an approved excess and surplus lines insurer in 49 states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands and an authorized insurer in one state. Arch Indemnity is an admitted insurer in 49 states and the District of Columbia. Arch E&S, which is not currently writing business, is an approved excess and surplus lines insurer in 47 states and the District of Columbia and an authorized insurer in one state. Our insurance group also operates McNeil, a specialized risk manager and a program administrator based in Cortland, New York. The headquarters


ARCH CAPITAL42019 FORM 10-K



for our insurance group’s U.S. support operations (excluding underwriting units) isare in Jersey City, New Jersey. The insurance group has offices throughout the U.S., including five regional offices located in Alpharetta, Georgia, Chicago, Illinois, New York, New York, San Francisco, California, and Dallas, Texas and additional branch offices. In December 2018, the U.S. insurance operations acquired McNeil, based in Cortland, New York, which provides specialized risk management and program administration.
Our insurance operations in Canada are conducted through Arch Insurance Canada, a Canada domestic company which is authorized in all Canadian provinces and territories. Arch Insurance Canada is headquartered in Toronto, Ontario. Our
In 2019, Arch Insurance (EU), based in Dublin, Ireland, received authorization from the Central Bank of Ireland (“CBOI”) to expand its classes of business as part of our plan to address the U.K.’s departure from the European Union (“Brexit”). As of January 2020, all of the insurance business in the European Union (“EU”) previously written by Arch Insurance (U.K.) is now written through Arch Insurance (EU). Arch Insurance (EU) has branches in Denmark, Italy and the U.K. Following the acquisition of Barbican, we conduct insurance operations in Europe are conducted on twoseveral platforms, including Arch Insurance Company Europe and(U.K.), Arch Syndicate 2012 (theand Barbican Syndicate 1955. In addition, BMAL also provides managing agency services to Third Party Capital Syndicate 1856. Barbican also includes Castel Underwriting Agencies Limited (“Castel”). Collectively, the U.K. insurance operations are collectively referred to as “Arch Insurance Europe”)U.K.”. Arch Insurance EuropeU.K. operations include the Arch U.K. Regional Division, which underwrites U.K. commercial lines. Arch U.K. conducts its


ARCH CAPITAL52018 FORM 10-K



operations from London, England. Arch Insurance Company Europe is eligible by virtue ofEngland, and other locations in the U.S. NonadmittedU.K. and Reinsurance Reform Act of 2010 (“NRRA”) as an excess and surplus lines insurer in 50 states, the District of Columbia, the U.S. Virgin Islands, Guam, the Northern Mariana Islands and American Samoa. Arch Insurance Company Europe also has branches in Germany, Italy, Spain and Denmark. In January 2019, Arch Insurance Europe operations expanded to include the Arch U.K. Regional Division, which underwrites the U.K. commercial lines acquired from the Ardonaugh Group.
Arch Underwriting at Lloyd’s Ltd (“AUAL”) is the managing agent of Arch Syndicate 2012 and is responsible for the daily management of Arch Syndicate 2012. BMAL is the managing agent of Barbican Syndicate 1955 with daily management of Barbican Syndicate 1955 and Arcus Syndicate 1856. Arch Syndicate 2012 providesand Barbican Syndicate 1955 provide access to Lloyd’s extensive distribution network and worldwide licenses. Arch Underwriting at Lloyd’s (Australia) Pty Ltd, based in Sydney, Australia, is a Lloyd’s services company which underwrites exclusively for Arch Syndicate 2012. Arch Underwriting Agency (Australia) Pty. Ltd. is an Australian agency which also underwrites for Arch Syndicate 2012 and third parties.
Strategy. Our insurance group’s strategy is to operate in lines of business in which underwriting expertise can make a meaningful difference in operating results. The insurance group focuses on talent-intensive rather than labor-intensive business and seeks to operate profitably (on both a gross and net basis) across all of its product lines. To achieve these objectives, our insurance group’s operating principles are to:
Capitalize on profitable underwriting opportunities. Our insurance group believes that its experienced management and underwriting teams are positioned to locate and identify business with attractive risk/reward characteristics. As profitable underwriting opportunities are identified, our insurance group will continue to seek to make additions to its product portfolio in order to take advantage of market trends. This includes adding underwriting and other professionals with specific expertise in specialty lines of insurance.
Centralize responsibility for underwriting. Our insurance group consists of a range of product lines. The underwriting executive in charge of each product line oversees all aspects of the underwriting product development process within such product line. Our insurance group believes that centralizing the control of such product line with the respective underwriting executive allows for close management of underwriting and creates clear accountability for results. Our U.S. insurance group has four regional offices, and the executive in charge of each region is primarily responsible for all aspects of the marketing and distribution of our insurance group’s products, including the management of broker and other producer relationships in such executive’s respective region. In our non-U.S. offices, a similar philosophy is
 
observed, with responsibility for the management of each product line residing with the senior underwriting executive in charge of such product line.
Maintain a disciplined underwriting philosophy. Our insurance group’s underwriting philosophy is to generate an underwriting profit through prudent risk selection and proper pricing. Our insurance group believes that the key to this approach is adherence to uniform underwriting standards across all types of business. Our insurance group’s senior management closely monitors the underwriting process.
Focus on providing superior claims management
Capitalize on profitable underwriting opportunities. Our insurance group believes that its experienced management and underwriting teams are positioned to locate and identify business with attractive risk/reward characteristics. As profitable underwriting opportunities are identified, our insurance group will continue to seek to make additions to its product portfolio in order to take advantage of market trends. This includes adding underwriting and other professionals with specific expertise in specialty lines of insurance.
Centralize responsibility for underwriting. Our insurance group consists of a range of product lines. The underwriting executive in charge of each product line oversees all aspects of the underwriting product development process within such product line. Our insurance group believes that centralizing the control of such product line with the respective underwriting executive allows for close management of underwriting and creates clear accountability for results. Our U.S. insurance group has four regional offices, and the executive in charge of each region is primarily responsible for all aspects of the marketing and distribution of our insurance group’s products, including the management of broker and other producer relationships in such executive’s respective region. In our non-U.S. offices, a similar philosophy is observed, with responsibility for the management of each product line residing with the senior underwriting executive in charge of such product line.
Maintain a disciplined underwriting philosophy. Our insurance group’s underwriting philosophy is to generate an underwriting profit through prudent risk selection and proper pricing. Our insurance group believes that the key to this approach is adherence to uniform underwriting standards across all types of business. Our insurance group’s senior management closely monitors the underwriting process.
Focus on providing superior claims management. Our insurance group believes that claims handling is an integral component of credibility in the market for insurance products. Therefore, our insurance group believes that its ability to handle claims expeditiously and satisfactorily is a key to its success. Our insurance group employs experienced claims professionals and also utilizes experienced external claims managers (third party administrators) where appropriate.
Promote and utilize an efficient distribution system. Our insurance group believes that promoting and utilizing a multi-channel distribution system, provides efficient access to its broad customer base. Our insurance group works with select international, national and regional retail and wholesale brokers and leading managing general agencies, including McNeil, to distribute our insurance


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products. The Arch U.K. Regional Division expands our retail distribution network in the market for insurance products. Therefore, our insurance group believes that its ability to handle claims expeditiously and satisfactorily is a key to its success. Our insurance group employs experienced claims professionals and also utilizes experienced external claims managers (third party administrators) where appropriate.U.K.
Grow strategic partnerships in stable and niche areas. Our insurance group aims to build more integrated long-term alignment with strategic partners offering superior access to niche opportunities, quality scalable businesses, or lines with reliable defensive qualities.
Promote and utilize an efficient distribution system. Our insurance group believes that promoting and utilizing a multi-channel distribution system, provides efficient access to its broad customer base. Our insurance group works with select international, national and regional retail and wholesale brokers and leading managing general agencies, including McNeil, to distribute our insurance products.
Grow strategic partnerships in stable and niche areas. Our insurance group aims to build more integrated long-term alignment with strategic partners offering superior access to niche opportunities, quality scalable businesses, or lines with reliable defensive qualities.
Our insurance group writes business on both an admitted and non-admitted basis. Our insurance group focuses on the following areas:various specialty lines, as described in note 4, “Segment Information,” to our consolidated financial statements in Item 8.
Construction and national accounts: primary and excess casualty coverages to middle and large accounts in the construction industry and a wide range of products for middle and large national accounts, specializing in loss sensitive primary casualty insurance programs (including large deductible, self-insured retention and retrospectively rated programs).
Excess and surplus casualty: primary and excess casualty insurance coverages, including middle market energy business, and contract binding, which primarily provides casualty coverage through a network of appointed agents to small and medium risks.
Lenders products: collateral protection, debt cancellation and service contract reimbursement products to banks,


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credit unions, automotive dealerships and original equipment manufacturers and other specialty programs that pertain to automotive lending and leasing.
Professional lines: directors’ and officers’ liability, errors and omissions liability, employment practices liability, fiduciary liability, crime, professional indemnity and other financial related coverages for corporate, private equity, venture capital, real estate investment trust, limited partnership, financial institution and not-for-profit clients of all sizes and medical professional and general liability insurance coverages for the healthcare industry. The business is predominately written on a claims-made basis.
Programs: primarily package policies, underwriting workers’ compensation and umbrella liability business in support of desirable package programs, targeting program managers with unique expertise and niche products offering general liability, commercial automobile, inland marine and property business with minimal catastrophe exposure.
Property, energy, marine and aviation: primary and excess general property insurance coverages, including catastrophe-exposed property coverage, for commercial clients. Coverages for marine include hull, war, specie and liability. Aviation and stand-alone terrorism are also offered.
Travel, accident and health: specialty travel and accident and related insurance products for individual, group travelers, travel agents and suppliers, as well as accident and health, which provides accident, disability and medical plan insurance coverages for employer groups, medical plan members, students and other participant groups.
Other: includes alternative market risks (including captive insurance programs), excess workers’ compensation and employer’s liability insurance coverages for qualified self-insured groups, associations and trusts, statutory Defense Base Act workers compensation and employers liability, and contract and commercial surety coverages, including contract bonds (payment and performance bonds) primarily for medium and large contractors and commercial surety bonds for Fortune 1000 companies and smaller transaction business programs.
Underwriting Philosophy. Our insurance group’s underwriting philosophy is to generate an underwriting profit (on both a gross and net basis) through prudent risk selection and proper pricing across all types of business. One key to this philosophy is the adherence to uniform underwriting standards across each product line that focuses on the following:
risk selection;
desired attachment point;
limits and retention management;
due diligence, including financial condition, claims history, management, and product, class and territorial exposure;
underwriting authority and appropriate approvals; and
collaborative decision making.
Marketing. Our insurance group’s products are marketed principally through a group of licensed independent retail and wholesale brokers. Clients (insureds) are referred to our insurance group through a large number of international, national and regional brokers and captive managers who receive from the insured or insurer a set fee or brokerage commission usually equal to a percentage of gross premiums. In the past, our insurance group also entered into contingent commission arrangements with some brokers that provided for the payment of additional commissions based on volume or profitability of business. Currently, some of our contracts with brokers provide for additional commissions based on volume. We have also entered into service agreements with select international brokers that provide access to their proprietary industry analytics. In general, our insurance group has no implied or explicit commitments to accept business from any particular broker and neither brokers nor any other third parties have the authority to bind our insurance group, except in the case where underwriting authority may be delegated contractually to select program administrators. Such administrators are subject to a due diligence financial and operational review prior to any such delegation of authority and ongoing reviews and audits are carried out as deemed necessary by our insurance group to assure the continuing integrity of underwriting and related
business operations. See “Risk Factors—Risks Relating to Our Company—We could be materially adversely affected to the extent that managing general agents, general agents and other producers exceed their underwriting authorities or if our agents, our insureds or other third parties commit fraud or otherwise breach obligations owed to us.” For information on major brokers, see note 16,17, “Commitments and Contingencies—Concentrations of Credit Risk,” to our consolidated financial statements in Item 8.
Risk Management and Reinsurance. In the normal course of business, our insurance group may cede a portion of its premium on a quota share or excess of loss basis through treaty or facultative reinsurance agreements. Reinsurance arrangements do not relieve our insurance group from its primary obligations to insureds. Reinsurance recoverables are recorded as assets, predicated on the reinsurers’ ability to meet their obligations under the reinsurance agreements. If the reinsurers are unable to satisfy their obligations under the agreements, our insurance subsidiaries would be liable for such defaulted amounts. Our principal insurance subsidiaries, with oversight by a group-wide reinsurance steering committee (“RSC”), are selective with regard to reinsurers, seeking to place reinsurance with only those reinsurers which meet and maintain specific standards of established criteria for financial strength. The RSC evaluates


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the financial viability of its reinsurers through financial analysis, research and review of rating agencies’ reports and also monitors reinsurance recoverables and collateral with unauthorized reinsurers. The financial analysis includes ongoing qualitative and quantitative assessments of reinsurers, including a review of the financial stability, appropriate licensing, reputation, claims paying ability and underwriting philosophy of each reinsurer. Our insurance group will continue to evaluate its reinsurance requirements. See note 7, “Reinsurance,” to our consolidated financial statements in Item 8.
For catastrophe-exposed insurance business, our insurance group seeks to limit the amount of exposure to catastrophic losses it assumes through a combination of managing aggregate limits, underwriting guidelines and reinsurance. For a discussion of our risk management policies, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Ceded Reinsurance” and “Risk Factors—Risks Relating to Our Industry—The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.”
Claims Management. Our insurance group’s claims management function is performed by claims professionals, as well as experienced external claims managers (third party administrators), where appropriate. In addition to investigating, evaluating and resolving claims, members of our insurance group’s claims departments work with underwriting


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professionals as functional teams in order to develop products and services desired by the group’s clients.
Reinsurance Operations
Our reinsurance operations are conducted on a worldwide basis through our reinsurance subsidiaries, Arch Re Bermuda, Arch Re U.S. and Arch Re Europe. Arch Re Bermuda is a registered Class 4 insurer and long-term insurer and is headquartered in Hamilton, Bermuda. Arch Re U.S. is licensed or is an accredited or otherwise approved reinsurer in 50 states, the District of Columbia and Puerto Rico, the provinces of Ontario and Quebec in Canada with its principal U.S. offices in Morristown, New Jersey. Treaty operations in Canada are conducted through the Canadian branch of Arch Re U.S. (“Arch Re Canada”). Arch Re U.S. is also an admitted insurer in Guam. Our property facultative reinsurance operations are conducted primarily through Arch Re U.S. The property facultative reinsurance operations have offices throughout the U.S., Canada and in Europe. Arch Re Europe, licensed and authorized as a non-life reinsurer and a life reinsurer, is headquartered in Dublin, Ireland with branch offices in Zurich and London.
In February 2017, Arch Underwriters (Gulf) Limited (“Arch Underwriters Gulf”) was licensed as an Insurance Manager by
the Dubai Financial Services Authority. Arch Underwriters Gulf is based in the Dubai International Financial Centre and provides underwriting, administrative and support services to Arch Re Bermuda and certain employees and certain administrative support services to Gulf Re.
Strategy. Our reinsurance group’s strategy is to capitalize on our financial capacity, experienced management and operational flexibility to offer multiple products through our operations. The reinsurance group’s operating principles are to:
Actively select and manage risks. Our reinsurance group only underwrites business that meets certain profitability criteria, and it emphasizes disciplined underwriting over premium growth. To this end, our reinsurance group maintains centralized control over reinsurance underwriting guidelines and authorities.
Maintain flexibility and respond to changing market conditions. Our reinsurance group’s organizational structure and philosophy allows it to take advantage of increases or changes in demand or favorable pricing trends. Our reinsurance group believes that its existing platforms in Bermuda, the U.S., Europe, Dubai and Canada, broad underwriting expertise and substantial capital facilitate adjustments to its mix of business geographically and by line and type of coverage. Our reinsurance group believes that this flexibility allows it to participate in those market opportunities that provide the greatest potential for underwriting profitability.
Maintain a low cost structure. Our reinsurance group believes that maintaining tight control over its staffing level and operating primarily as a broker market reinsurer permits it to maintain low operating costs relative to its capital and premiums.
Actively select and manage risks. Our reinsurance group only underwrites business that meets certain profitability criteria, and it emphasizes disciplined underwriting over premium growth. To this end, our reinsurance group maintains centralized control over reinsurance underwriting guidelines and authorities.
Maintain flexibility and respond to changing market conditions. Our reinsurance group’s organizational structure and philosophy allows it to take advantage of increases or changes in demand or favorable pricing trends. Our reinsurance group believes that its existing platforms in Bermuda, the U.S., Europe and Canada, broad underwriting expertise and substantial capital facilitate adjustments to its mix of business geographically and by line and type of coverage. Our reinsurance group believes that this flexibility allows it to participate in those market opportunities that provide the greatest potential for underwriting profitability.
Maintain a low cost structure. Our reinsurance group believes that maintaining tight control over its staffing level and operating primarily as a broker market reinsurer permits it to maintain low operating costs relative to its capital and premiums.
Our reinsurance group writes business on both a proportional and non-proportional basis and writes both treaty and facultative business. In a proportional reinsurance arrangement (also
(also known as pro rata reinsurance, quota share reinsurance or participating reinsurance), the reinsurer shares a proportional part of the original premiums and losses of the reinsured. The reinsurer pays the cedent a commission which is generally based on the cedent’s cost of acquiring the business being reinsured (including commissions, premium taxes, assessments and miscellaneous administrative expenses) and may also include a profit factor. Non-proportional (or excess of loss) reinsurance indemnifies the reinsured against all or a specified portion of losses on underlying insurance policies in excess of a specified amount, which is called a “retention.” Non-proportional business is written in layers and a reinsurer or group of reinsurers accepts a band of coverage up to a specified amount. The total coverage purchased by the cedent is referred to as a “program.” Any liability exceeding the upper limit of the program reverts to the cedent.


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The reinsurance group’s treaty operations generally seek to write significant lines on less commoditized classes of coverage, such as specialty property and casualty reinsurance treaties. However, with respect to other classes of coverage, such as property catastrophe and casualty clash, the reinsurance group’s treaty operations participate in a relatively large number of treaties where they believe that they can underwrite and process the business efficiently. The reinsurance group’s property facultative operations write reinsurance on a facultative basis whereby they assume part of the risk under primarily single insurance contracts. Facultative reinsurance is typically purchased by ceding companies for individual risks not covered by their reinsurance treaties, for unusual risks or for amounts in excess of the limits on their reinsurance treaties.
Our reinsurance group focuses on the following areas:various specialty lines, as described in note 4, “Segment Information,” to our consolidated financial statements in Item 8.
Casualty: provides coverage to ceding company clients on third party liability and workers’ compensation exposures from ceding company clients, primarily on a treaty basis. Exposures include, among others, executive assurance, professional liability, workers’ compensation, excess and umbrella liability, excess motor and healthcare business.
Marine and aviation: provides coverage for energy, hull, cargo, specie, liability and transit, and aviation business, including airline and general aviation risks. Business written may also include space business, which includes coverages for satellite assembly, launch and operation for commercial space programs.
Other specialty: provides coverage to ceding company clients for proportional motor and other lines, including surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and political risk.
Property catastrophe: provides protection for most catastrophic losses that are covered in the underlying policies written by reinsureds, including hurricane, earthquake, flood, tornado, hail and fire, and coverage for other perils on a case-by-case basis. Property catastrophe reinsurance provides coverage on an excess of loss basis when aggregate losses and loss adjustment expense from a single occurrence or aggregation of losses from a covered peril exceed the retention specified in the contract.
Property excluding property catastrophe: provides coverage for both personal lines and commercial property exposures and principally covers buildings, structures, equipment and contents. The primary perils in this business include fire, explosion, collapse, riot, vandalism, wind, tornado, flood and earthquake. Business is assumed on both a proportional and excess of loss basis. In addition, facultative business is written which focuses on individual commercial property risks on an excess of loss basis.
Other. includes life reinsurance business on both a proportional and non-proportional basis, casualty clash
business and, in limited instances, non-traditional business which is intended to provide insurers with risk management solutions that complement traditional reinsurance.
Underwriting Philosophy. Our reinsurance group employs a disciplined, analytical approach to underwriting reinsurance risks that is designed to specify an adequate premium for a given exposure commensurate with the amount of capital it anticipates placing at risk. A number of our reinsurance group’s underwriters are also actuaries. It is our reinsurance group’s belief that employing actuaries on the front-end of the underwriting process gives it an advantage in evaluating risks and constructing a high quality book of business.
As part of the underwriting process, our reinsurance group typically assesses a variety of factors, including:
adequacy of underlying rates for a specific class of business and territory;
the reputation of the proposed cedent and the likelihood of establishing a long-term relationship with the cedent, the geographic area in which the cedent does business, together with its catastrophe exposures, and our aggregate exposures in that area;


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historical loss data for the cedent and, where available, for the industry as a whole in the relevant regions, in order to compare the cedent’s historical loss experience to industry averages;
projections of future loss frequency and severity; and
the perceived financial strength of the cedent.
Marketing. Our reinsurance group generally markets its reinsurance products through brokers, except our property facultative reinsurance group, which generally deals directly with the ceding companies. Brokers do not have the authority to bind our reinsurance group with respect to reinsurance agreements, nor does our reinsurance group commit in advance to accept any portion of the business that brokers submit to them. Our reinsurance group generally pays brokerage fees to brokers based on negotiated percentages of the premiums written through such brokers. For information on major brokers, see note 16,17, “Commitments and Contingencies—Concentrations of Credit Risk,” to our consolidated financial statements in Item 8.
Risk Management and Retrocession. Our reinsurance group currently purchases a combination of per event excess of loss, per risk excess of loss, proportional retrocessional agreements and other structures that are available in the market. Such arrangements reduce the effect of individual or aggregate losses on, and in certain cases may also increase the underwriting capacity of, our reinsurance group. Our reinsurance group will continue to evaluate its retrocessional requirements based on


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its net appetite for risk. See note 7, “Reinsurance,” to our consolidated financial statements in Item 8.
For catastrophe exposed reinsurance business, our reinsurance group seeks to limit the amount of exposure it assumes from any one reinsured and the amount of the aggregate exposure to catastrophe losses from a single event in any one geographic zone. For a discussion of our risk management policies, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Ceded Reinsurance” and “Risk Factors—Risks Relating to Our Industry—The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.”
Claims Management. Claims management includes the receipt of initial loss reports, creation of claim files, determination of whether further investigation is required, establishment and adjustment of case reserves and payment of claims. Additionally, audits are conducted for both specific claims and overall claims procedures at the offices of selected ceding companies. Our reinsurance group makes use of outside consultants for claims work from time to time.
Mortgage Operations
Our mortgage operations provide U.S. and international mortgage insurance and reinsurance operations as well as participation in GSE credit risk-sharing transactions. Our mortgage group includes direct mortgage insurance in the U.S. primarily through Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company (together, “Arch MI U.S.”); mortgage reinsurance primarily through Arch Re Bermuda to mortgage insurers on both a proportional and non-proportional basis globally; direct mortgage insurance in Europe through Arch MI EuropeInsurance (EU) and in Hong Kong through Arch MI Asia Limited (“Arch MI Asia”); and participation in various GSE credit risk-sharing products primarily through Arch Re Bermuda.
In 2014 we completed the acquisition of CMG Mortgage Insurance Company from its owners, PMI Mortgage Insurance Co., (“PMI”) and CMFG Life Insurance Company (“CUNA Mutual”) and acquired PMI’s mortgage insurance platform and related assets. CMG Mortgage Insurance Company was renamed “Arch Mortgage Insurance Company” and entered the U.S. mortgage insurance marketplace. Arch Mortgage Insurance Company is licensed and operates in all 50 states, the District of Columbia and Puerto Rico.
On In December 31, 2016, we completed the acquisition of UGC and its primary operating subsidiary, United Guaranty Residential Insurance Company, which is licensed and operates in all 50 states and the District of Columbia.
Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company have each been approved as an eligible mortgage insurer by Fannie Mae and Freddie Mac, subject to maintaining certain ongoing requirements (“eligible mortgage insurer”). Arch Mortgage Guaranty Company offers direct mortgage insurance to U.S. mortgage lenders with respect to mortgages that lenders intend to retain in portfolio or include in non-agency securitizations. Arch Mortgage Guaranty Company, which is licensed in all 50 states and the District of Columbia, insures mortgages that are not intended to be sold to the GSEs, and it is therefore not approved by either GSE as an eligible mortgage insurer.
Arch MI EuropeInsurance (EU) was licensed and authorized by the Central Bank of Ireland (“CBOI”)CBOI in 2011 to operate on a pan-European basis under the European FreedomEU’s freedom of Services Act. Arch MI Europe is headquartered in Dublin, Ireland.establishment/freedom of services rules. Arch Underwriters Europe Limited (“Arch Underwriters Europe”), an Irish company authorized as an insurance and reinsurance intermediary by the CBOI, acts on behalf of Arch MI EuropeInsurance (EU) and Arch Re Europe with branch offices in Italy, Switzerland, the U.K., and Finland. In 2017 we completed the acquisition of Arch MI Asia from AIG. OnIn January 17, 2019, Arch LMI was authorized by APRA to write lenders’ mortgage insurance. Arch LMI is headquartered in Sydney, Australia and will focusfocuses on providing direct lenders’ mortgage insurance to the Australian market.


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Strategy. The mortgage insurance market operates on a distinct underwriting cycle, with demand driven mainly by the housing market and general economic conditions. As a result, the creation of the mortgage group provides us with a more diverse revenue stream. Our mortgage group’s strategy is to capitalize on its financial capacity, mortgage insurance technology platform, operational flexibility and experienced management to offer mortgage insurance, reinsurance and other risk-sharing products in the U.S. and around the world.
Our mortgage group’s operating principles and goals are to:
Capitalize on profitable underwriting opportunities. Our mortgage group believes that its experienced management, analytics and underwriting teams are positioned to identify and evaluate business with attractive risk/reward characteristics.
Maintain a disciplined credit risk philosophy. Our mortgage group’s credit risk philosophy is to generate underwriting profit through disciplined credit risk analysis and proper pricing. Our mortgage group believes that the key to this approach is maintaining discipline across all phases of the applicable housing and mortgage lending cycles.

Provide superior and innovative mortgage products and services. Our mortgage group believes that it can leverage


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Capitalize on profitable underwriting opportunities. Our mortgage group believes that its experienced management, analytics and underwriting teams are positioned to identify and evaluate business with attractive risk/reward characteristics.
Maintain a disciplined credit risk philosophy. Our mortgage group’s credit risk philosophy is to generate underwriting profit through disciplined credit risk analysis and proper pricing. Our mortgage group believes that the key to this approach is maintaining discipline across all phases of the applicable housing and mortgage lending cycles.




its financial capacity, experience across insurance product lines, and its analytics and technology to provide innovative products and superior service. The mortgage group believes that its delivery of tailored products that meet the specific, evolving needs of its customers will be a key to the group’s success.
Maintain our position as a leading provider of U.S. mortgage insurance business. Prior to our 2014 acquisition, Arch Mortgage Insurance Company was the leading provider of mortgage insurance products and services to credit unions in the U.S. We broadened our customer base into national and regional banks and mortgage originators while maintaining and increasing its share of the mortgage insurance credit union market. With the acquisition of UGC, a leading provider of mortgage insurance products and services to national and regional banks and mortgage originators, we are the leading provider of U.S. mortgage insurance.
Provide superior and innovative mortgage products and services. Our mortgage group believes that it can leverage its financial capacity, experience across insurance product lines, and its analytics and technology to provide innovative products and superior service. The mortgage group believes that its delivery of tailored products that meet the specific, evolving needs of its customers will be a key to the group’s success.
Maintain our position as a leading provider of U.S. mortgage insurance business. Prior to our 2014 acquisition, Arch Mortgage Insurance Company was the leading provider of mortgage insurance products and services to credit unions in the U.S. We broadened our customer base into national and regional banks and mortgage originators while maintaining and increasing our share of the mortgage insurance credit union market. With the acquisition of UGC in 2016, a leading provider of mortgage insurance products and services to national and regional banks and mortgage originators, we became a leading provider of U.S. mortgage insurance.
Our mortgage group focuses on the following areas:
Direct mortgage insurance in the United States. Under their monoline insurance licenses, each of Arch’s eligible mortgage insurers may only offer private mortgage insurance covering first lien, one-to-four family residential mortgages. Nearly all of our mortgage insurance written provides first loss protection on loans originated by
Direct mortgage insurance in the United States. Under their monoline insurance licenses, each of Arch’s eligible mortgage insurers may only offer private mortgage insurance covering first lien, one-to-four family residential mortgages. Nearly all of our mortgage insurance written provides first loss protection on loans originated by mortgage lenders and sold to the GSEs. Each GSE’s Congressional charter generally prohibits it from purchasing a mortgage where the principal balance of the mortgage is in excess of 80% of the value of the property securing the mortgage unless the excess portion of the mortgage is protected against default by lender recourse, participation or by a qualified insurer. As a result, such “high loan-to-value mortgages” purchased by Fannie Mae or Freddie Mac generally are insured with private mortgage insurance.
Mortgage insurance protects the insured lender, investor or GSE against loss in the event of a borrower’s default. If a borrower defaults on mortgage payments, private mortgage insurance reduces, and may eliminate, losses to the insured. Private mortgage insurance may also facilitate the sale of mortgage loans in the secondary mortgage market because of the credit enhancement it provides. Our primary U.S. mortgage insurance policies predominantly cover individual loans and are effective at the time the loan is originated. We also may enter into insurance transactions with lenders and investors, under which we insure a portfolio of loans at or after origination. Although not currently a significant product, we may offer mortgage insurance on a “pool” basis in the future. Under pool insurance, the mortgage insurer provides coverage on a group of specified loans, typically for 100% of all contractual or policy-defined losses on every loan in the
portfolio, subject to an agreed aggregate loss limit. Pool insurance may be in a first loss position with respect to loans that do not have primary mortgage insurance policies, or it may be in a second loss position, covering losses in excess of those covered by the primary mortgage insurance policy.
Direct mortgage insurance in Europe and other countries where we identify profitable underwriting opportunities. Since 2011, Arch MI Europe has offered mortgage insurance to European mortgage lenders. Arch MI Europe’s mortgage insurance is primarily purchased by European mortgage lenders in order to reduce lenders’ credit risk and regulatory capital requirements associated with the insured mortgages. In certain European countries, lenders purchase mortgage insurance to facilitate regulatory compliance with respect to high loan-to-value residential lending. Arch MI Europe offers mortgage insurance on both a “flow” basis to cover new originations and through structured transactions to cover one or more portfolios of previously originated residential loans. In addition, with our acquisition of Arch MI Asia in 2017 and regulatory approval of Arch LMI in January 2019, we are focused on expanding origination opportunities for lenders in Hong Kong and throughout Asia and Australia.
Direct mortgage insurance in Europe and other countries where we identify profitable underwriting opportunities. Since 2011, Arch Insurance (EU) has offered mortgage insurance to European mortgage lenders. Arch Insurance (EU)’s mortgage insurance is primarily purchased by European mortgage lenders in order to reduce lenders’ credit risk and regulatory capital requirements associated with the insured mortgages. In certain European countries, lenders purchase mortgage insurance to facilitate regulatory compliance with respect to high loan-to-value residential lending. Arch Insurance (EU) offers mortgage insurance on both a “flow” basis to cover new originations and through structured transactions to cover one or more portfolios of previously originated residential loans. Following regulatory approval of Arch LMI in January 2019, we are also focused on expanding origination opportunities for lenders in Australia.
Reinsurance. Arch Re Bermuda provides quota share reinsurance covering U.S. and international mortgages. Such amounts include a quota share reinsurance agreement

Reinsurance. Arch Re Bermuda provides quota share reinsurance covering U.S. and international mortgages. Such amounts include a quota share reinsurance agreement

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with PMI pursuant to which it agreed to provide 100% quota share indemnity reinsurance to PMI for all certificates of insurance that were issued by PMI from January 1, 2009 through December 31, 2011 that were not in default as of an agreed upon effective date. Other than this quota share, no PMI legacy mortgage insurance exposures were assumed.
Other credit risk-sharing products. In addition to providing traditional mortgage insurance and reinsurance, we offer various credit risk-sharing products to government agencies and mortgage lenders. The GSEs have reduced their exposure to mortgage risk and continue to shift more of it to the private sector, creating opportunities for insurers to assume additional mortgage risk. In 2013, Arch Re Bermuda became the first (re)insurance company to participate in Freddie Mac’s program to transfer certain credit risk in its single-family portfolio to the private sector. Since that time, Arch Re Bermuda and its affiliates have regularly participated in both Fannie Mae and Freddie Mac risk sharing programs.
Other credit risk-sharing products. In addition to providing traditional mortgage insurance and reinsurance, we offer various credit risk-sharing products to government agencies and mortgage lenders. The GSEs have reduced their exposure to mortgage risk and continue to shift more of it to the private sector, creating opportunities for insurers to assume additional mortgage risk. In 2013, Arch Re Bermuda became the first (re)insurance company to participate in Freddie Mac’s program to transfer certain credit risk in its single-family portfolio to the private sector. Since that time, Arch Re Bermuda and its affiliates have regularly participated in both Fannie Mae and Freddie Mac risk sharing programs.
In 2017,2015 we established Arch Mortgage Risk Transfer PCC Inc. (“Arch MRT”) a District of Columbia based protected cell captive insurer, licensed by District of Columbia Department of Insurance, Securities and Banking as a mortgage insurer. Arch MRT issues direct mortgage insurance to the GSEs


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through incorporated protected cells and cedes 100% of the risk to GSE approved reinsurers, including Arch Re U.S. Arch MRT entered into one pilot transactiontransactions with each of theboth GSEs in 2018.2018 and amended and extended both policies in 2019.
In 20182019 we established Arch Credit Risk Services Inc.(Bermuda) (“ACRS”) andLtd. ACRS is licensed itby the Bermuda Monetary Authority (“BMA”) as a reinsurance intermediaryan insurance agent in several states.Bermuda. ACRS offers mortgage credit assessment and underwriting advisory services with respect to participation in GSE credit risk transfer transactions.


Underwriting Philosophy. Our mortgage group believes in a disciplined, analytical approach to underwriting mortgage risks by utilizing proprietary and third party models, including forecasting delinquency and future home price movements with the goal of ensuring that premiums are adequate for the risk being insured. Experienced actuaries and statistical modelers are engaged in analytics to inform the underwriting process. As part of the underwriting process, our mortgage group typically assesses a variety of factors, including the:
ability and willingness of the mortgage borrower to pay its obligations under the mortgage loan being insured;
characteristics of the mortgage loan being insured and the value of the collateral securing the mortgage loan;
financial strength, quality of operations and reputation of the lender originating the mortgage loan;
expected future home price movements which vary by geography;
projections of future loss frequency and severity; and
adequacy of premium rates.
Sales and Distribution. We employ a sales force located throughout the U.S. to directly sell mortgage insurance products and services to our customers, which include mortgage originators such as mortgage bankers, mortgage brokers, commercial banks, savings institutions, credit unions and community banks. Our largest single mortgage insurance customer (including branches and affiliates) accounted for 6.9%4.0% and 4.7% of our primary new insurancegross premiums written duringfor the years ending December 31, 2019 and 2018, with norespectively. No other customer accountingaccounted for greater than 3.4%.3.3% and 2.7% of the gross premiums written for the years ending December 31, 2019 and 2018, respectively. The percentage of our primary new insurancegross premiums written generated byon our top 10 customers was 25.2% in 2018.20.8% and 20.9% as of December 31, 2019 and 2018, respectively. In Europe, Asia, Bermuda and Australia, our products and services are/or will be distributed on a direct basis and through brokers. Each country represents a unique set of opportunities and challenges that require knowledge of market conditions and client needs to develop effective solutions.
Risk Management. Exposure to mortgage risk is monitored globally and managed through underwriting guidelines,pricing, reinsurance, utilization of proprietary risk models, concentration limits and limits on net probable loss resulting from a severe economic downturn in the housing market. For
a discussion of our risk management policies, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Ceded Reinsurance” and “Risk Factors—Risks Relating to Our Industry—The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.”
Our mortgage group has ceded a portion of its premium on a quota share basis through certain reinsurance agreements and through aggregate excess of loss reinsurance agreements which provide reinsurance coverage for delinquencies on portfolios of in-force policies issued between certain periods. See note 7, “Reinsurance,” to our consolidated financial statements in Item 8 for further details.
Reinsurance arrangements do not relieve our mortgage group from its primary obligations to insured parties. Reinsurance recoverables are recorded as assets, predicated on the reinsurers’ ability to meet their obligations under the reinsurance agreements. If the reinsurers are unable to satisfy their obligations under the agreements, our mortgage subsidiaries would be liable for such defaulted amounts. For our U.S. mortgage insurance business, in addition to utilizing


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reinsurance, we have developed a proprietary risk model that simulates the maximum loss resulting from severe economic events impacting the housing market. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Catastrophic Events and Severe Economic Events.”
Claims Management. With respect to our direct mortgage insurance business, the claims process generally begins with notification by the insured or servicer to us of a default on an insured loan. The insured is generally required to notify us of a default after the borrower becomesmisses two consecutive monthly payments in default.payments. Borrowers default for a variety of reasons, including a reduction of income, unemployment, divorce, illness, inability to manage credit, rising interest rate levels and declining home prices. Upon notice of a default, in certain cases we may coordinate with loan servicers to facilitate and enhance retention workouts on insured loans. Retention workouts include loan modifications and other loan repayment options, which may enable borrowers to cure mortgage defaults and retain ownership of their homes. If a retention workout is not viable for a borrower, our loss on a loan may be mitigated through a liquidation workout option, including a pre-foreclosure sale or a deed-in-lieu of foreclosure.
In the U.S., our master policies generally provide that within 60 days of the perfection of a primary insurance claim, we have the option of:
paying the insurance coverage percentage specified in the certificate of insurance multiplied by the loss amount;


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in the event the property is sold pursuant to an approved prearranged sale, paying the lesser of (i) 100% of the loss amount less the proceeds of sale of the property, or (ii) the specified coverage percentage multiplied by the loss amount; or
paying 100% of the loss amount in exchange for the insured’s conveyance to us of good and marketable title to the property, with us then selling the property for our own account.
While we select the claim settlement option that best mitigates the amount of our claim payment, in the U.S. we generally pay the coverage percentage multiplied by the loss amount.
Other Operations
In 2014 we and HPS Investment Partners, LLC (formerly Highbridge Principal Strategies, LLC) (“HPS”), sponsored the formation of Watford Re.Watford. Arch Re Bermuda invested $100.0 million in Watford common shares and acquired 2,500,000 common shares, approximately 11%, of Watford Re and a warrantas well as warrants to purchase up to 975,503 additional common shares. We also purchased $35.0 million in aggregate principal amount of Watford Re’sHoldings Ltd’s 6.5% senior notes in 2019. Watford’s strategy is to combine a diversified reinsurance and insurance business with a disciplined investment strategy comprised primarily of non-investment grade credit assets. Watford Re has itsWatford’s own management and board of directors and isare responsible for the overall profitability of its results.results and profitability. Arch Re Bermuda has appointed two directors to serve on the nineeight person board of directors of Watford Re. We performed an analysis of Watford ReWatford. See note 11, “Variable Interest Entity and concluded that Watford Re is a variable interest entity and that we are the primary beneficiary of Watford Re. As such, 100% of the results of Watford Re are included inNoncontrolling Interests,” to our consolidated financial statements.statements in Item 8 for further details.
In 2017 we and Kelso & Company (“Kelso”) sponsored the formation of Premia Re. Premia Re’sPremia. Premia’s strategy is to reinsure or acquire companies or reserve portfolios in the non-life property and casualty insurance and reinsurance run-off market. Arch Re Bermuda and certain Arch co-investors invested $100.0 million and acquired approximately 25% of Premia Re as well as warrants to purchase additional common equity. Affiliates of Kelso invested $300.0 million and acquired the balance of Premia Re as well as warrants to purchase additional common equity. Arch Re Bermuda is providing a 25% whole account quota share reinsurance treaty on certain business written by Premia, Re, and subsidiaries of Arch Capital are providing certain administrative and support services to Premia, Re, in each case pursuant to separate multi-year agreements. Arch Re Bermuda has appointed two directors to serve on the seven person board of directors of Premia. In the 2019 fourth quarter, Barbican entered into certain reinsurance and related transactions with Premia Re.pursuant to which Premia assumed a transfer of liability for the 2018 and prior years of account of Barbican as of July 1, 2019. See note 15, “Transactions with Related Parties,” to our consolidated financial statements in Item 8 for further details.
Employees
As of February 15, 2019,21, 2020, Arch Capital and its subsidiaries employed approximately 3,6424,300 full-time employees.
RESERVES

Reserve estimates are derived after extensive consultation with individual underwriters and claims professionals, actuarial analysis of the loss reserve development and comparison with industry benchmarks. Our reserves are established and reviewed by experienced internal actuaries. Generally, reserves are established without regard to whether we may subsequently contest the claim. We do not currently discount our loss reserves except for excess workers’ compensation and employers’ liability loss reserves in our insurance operations.
Reserves for losses and loss adjustment expenses (“Loss Reserves”) represent estimates of what the insurer or reinsurer ultimately expects to pay on claims at a given time, based on facts and circumstances then known, and it is probable that the ultimate liability may exceed or be less than such estimates. Even actuarially sound methods can lead to subsequent adjustments to reserves that are both significant and irregular due to the nature of the risks written. Loss Reserves are inherently subject to uncertainty.
In establishing Loss Reserves, including loss adjustment expenses (“LAE”), we have made various assumptions relating to the pricing of our reinsurance contracts and insurance policies and have also considered available historical industry experience and current industry conditions. The timing and amounts of actual claim payments related to recorded reserves vary based on many factors including large individual losses and changes in the legal environment, as well as general market conditions. The ultimate amount of the claim payments could differ materially from our estimated amounts. Certain lines of business written by us, such as excess casualty, have loss experience characterized as low frequency and high severity. This may result in significant variability in loss payment patterns and, therefore, may impact the related asset/liability investment management process in order to be in a position, if necessary, to make these payments. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Reserves for Losses and Loss Adjustment Expenses.”
Our initial reserving method to date has to a large extent been the expected loss method, which is commonly applied when limited loss experience exists. We select the initial expected loss and loss adjustment expense ratios based on information derived by our underwriters and actuaries during the initial pricing of the business, supplemented by industry data where appropriate. These ratios consider, among other things, rate changes and changes in terms and conditions that have been observed in the market. Any estimates and assumptions made as part of the reserving process could prove to be inaccurate due to several factors, including the fact that relatively limited historical information has been reported to us through




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December 31, 2018. We employ a number of different reserving methods dependingFor detail on theour Loss Reserves by segment the line of business, the availability of historical loss experience and the stability of that loss experience. Over time, we have given additional weight to our historical loss experiencepotential variability in ourthe reserving process, due tosee the continuing maturationLoss Reserves section of our reserves,“Critical Accounting Policies, Estimates and the increased availability and credibility of the historical experience.
For additional information regarding the key underlying movementsRecent Accounting Pronouncements” in our losses and loss adjustment expenses by segment, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Results of Operations.”
The following table representsItem 7. For an analysis of consolidated losses and loss adjustment expenses and a reconciliation of the beginning and ending Loss Reserves and information about prior year reserve development, see note 5, “Reserve for lossesLosses and loss adjustment expenses:Loss Adjustment Expenses,” to our consolidated financial statements in Item 8. For information on our reserving process, see note 6, “Short Duration Contracts,” to our consolidated financial statements in Item 8.
 Year Ended December 31,
 2018 2017 2016
Loss Reserves at beginning of year$11,383,792
 $10,200,960
 $9,125,250
Unpaid losses and LAE recoverable2,464,910
 2,083,575
 1,828,837
Net Loss Reserves at beginning of year8,918,882
 8,117,385
 7,296,413
      
Net incurred losses and LAE relating to losses occurring in:     
Current year3,162,818
 3,205,428
 2,455,563
Prior years(272,712) (237,982) (269,964)
Total net incurred losses and LAE2,890,106
 2,967,446
 2,185,599
      
Net Loss Reserves of acquired
business (1)

 
 551,096
      
Retroactive reinsurance transaction (2)(420,404) 
 
      
Foreign exchange losses (gains)(143,414) 186,963
 (102,367)
      
Net paid losses and LAE relating to losses occurring in:     
Current year(524,048) (505,424) (445,700)
Prior years(1,682,116) (1,847,488) (1,367,656)
Total net paid losses and LAE(2,206,164) (2,352,912) (1,813,356)
      
Net Loss Reserves at end of year9,039,006
 8,918,882
 8,117,385
Unpaid losses and LAE recoverable2,814,291
 2,464,910
 2,083,575
Loss Reserves at end of year$11,853,297
 $11,383,792
 $10,200,960
(1)2016 amount relates to our acquisition of UGC.
(2)During the 2018 second quarter a subsidiary of the Company entered into a retroactive reinsurance transaction with a third party reinsurer to reinsure runoff liabilities associated with certain discontinued U.S. specialty casualty and program exposures.

Unpaid and paid losses and loss adjustment expenses recoverable were approximately $2.92$4.35 billion at December 31, 2018. We are subject to credit risk with respect to2019. For detail on our reinsuranceunpaid and retrocessions becausepaid losses and loss adjustment expenses, see the cedingReinsurance Recoverables section of risk to reinsurers and retrocessionaires does not relieve us of our liability to the clients or companies we insure or reinsure. Our failure to establish adequate reinsurance or retrocessional arrangements or the failure of our existing reinsurance or retrocessional arrangements to protect us from overly
concentrated risk exposure could materially adversely affect our financial condition and results of operations. Although we monitor the financial condition of our reinsurers and retrocessionaires and attempt to place coverages only with substantial, financially sound carriers, we may not be successful “Financial Condition, Reinsurance Recoverables” in doing so.Item 7.


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INVESTMENTS

At December 31, 2018,2019, total investable assets held by Arch were $19.57$22.3 billion, excluding the $2.76$2.70 billion included in the ‘other’ segment (i.e., attributable to Watford Re)Watford). Our current investment guidelines and approach stress preservation of capital, market liquidity and diversification of risk. Our investments are subject to market-wide risks and fluctuations, as well as to risks inherent in particular securities. While maintaining our emphasis on preservation of capital and liquidity, we expect our portfolio to become more diversified and, as a result, we may in the future expand into areas which are not part of our current investment strategy.
The following table summarizes For detail on our investments, see the fair value of investable assets heldInvestable Assets Held by Arch (i.e., excluding the ‘other’ segment):
Investable assets (1):
Estimated
Fair Value
 
% of
Total
December 31, 2018   
Fixed maturities (2)$14,881,902
 76.1
Short-term investments (2)995,926
 5.1
Cash583,027
 3.0
Equity securities (2)368,843
 1.9
Other investments (2)1,261,525
 6.4
Investments accounted for using the equity method1,493,791
 7.6
Securities transactions entered into but not settled at the balance sheet date(18,153) (0.1)
Total investable assets held by Arch$19,566,861
 100.0
    
Average effective duration (in years)3.38
  
Average S&P/Moody’s credit ratings (3)AA/Aa2
  
Embedded book yield (4)2.89%  
    
December 31, 2017   
Fixed maturities (2)$14,798,213
 75.1
Short-term investments (2)1,509,713
 7.7
Cash551,696
 2.8
Equity securities (2)576,040
 2.9
Other investments (2)1,476,960
 7.5
Investments accounted for using the equity method1,041,322
 5.3
Securities transactions entered into but not settled at the balance sheet date(237,523) (1.2)
Total investable assets held by Arch$19,716,421
 100.0
    
Average effective duration (in years)2.83
  
Average S&P/Moody’s credit ratings (3)AA-/Aa2
  
Embedded book yield (4)2.32%  
(1)In securities lending transactions, we receive collateral in excess of the fair value of the securities pledged. For purposes of this table, we have excluded the collateral received under securities lending, at fair value and included the securities pledged under securities lending, at fair value.
(2)Includes investments carried as available for sale, at fair value and at fair value under the fair value option.
(3)Average credit ratings on our investment portfolio on securities with ratings by Standard & Poor’s Rating Services (“S&P”) and Moody’s Investors Service (“Moody’s”).
(4)Before investment expenses.
The credit quality distributionsection of our fixed maturities“Financial Condition” in Item 7 and fixed maturities pledged under securities lending agreements are shown below:
  December 31, 2018 December 31, 2017
Rating (1) Fair Value % Fair Value %
U.S. government and government agencies (2) $4,194,676
 28.2
 $3,771,835
 25.5
AAA 3,551,039
 23.9
 4,080,808
 27.6
AA 2,129,336
 14.3
 2,440,864
 16.5
A 3,069,656
 20.6
 2,470,936
 16.7
BBB 1,251,205
 8.4
 1,157,136
 7.8
BB 275,201
 1.8
 313,286
 2.1
B 183,614
 1.2
 254,011
 1.7
Lower than B 61,271
 0.4
 77,543
 0.5
Not rated 165,904
 1.1
 231,794
 1.6
Total $14,881,902
 100.0
 $14,798,213
 100.0
(1)For individual fixed maturities, S&P ratings are used. In the absence of an S&P rating, ratings from Moody’s are used, followed by ratings from Fitch Ratings.
(2)Includes U.S. government-sponsored agency mortgage backed securities and agency commercial mortgage backed securities.
See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Financial Condition—Investable Assets” and note 8, “Investment Information,” to our consolidated financial statements in Item 8.
The following table summarizes the pre-tax total return (before investment expenses) of investment held by Arch compared to the benchmark return (both based in U.S. Dollars) against which we measured our portfolio during the periods:
 Arch Benchmark
 Portfolio (1) Return
Pre-tax total return (before investment expenses):   
Year Ended December 31, 20180.33% (0.60)%
Year Ended December 31, 20175.87% 4.74 %
Year Ended December 31, 20162.07% 2.13 %
(1) Our investment expenses were approximately 0.36%, 0.30% and 0.34%, respectively, of average invested assets in 2018, 2017 and 2016.
The benchmark return index is a customized combination of indices intended to approximate a target portfolio by asset mix and average credit quality while also matching the approximate estimated duration and currency mix of our insurance and reinsurance liabilities. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—General—Financial Measures—Total Return on Investments”.


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RATINGS

Our ability to underwrite business is affected by the quality of our claims paying ability and financial strength ratings as evaluated by independent agencies. Such ratings from third party internationally recognized statistical rating organizations or agencies are instrumental in establishing the financial security of companies in our industry. We believe that the primary users of such ratings include commercial and investment banks, policyholders, brokers, ceding companies and investors. Insurance ratings are also used by insurance and reinsurance intermediaries as an important means of assessing the financial strength and quality of insurers and reinsurers, and are often an important factor in the decision by an insured or intermediary of whether to place business with a particular insurance or reinsurance provider.
The financial strength ratings of our operating insurance and reinsurance subsidiaries are subject to periodic review as rating agencies evaluate us to confirm that we continue to meet their criteria for ratings assigned to us by them. Such ratings may be revised downward or revoked at the sole discretion of such ratings agencies in response to a variety of factors, including capital adequacy, management, earnings, forms of capitalization and risk profile. Periodically, rating agencies evaluate us to confirm that we continue to meet their criteria for the ratings assigned to us by them. A.M. Best Company (“A.M. Best”), Fitch Ratings (“Fitch”), Moody’s Investors Service (“Moody’s”) and Standard & Poor’s (“S&P&P”) are ratings agencies which have assigned financial strength and/or issuer ratings to Arch Capital and/or one or more of its subsidiaries.
The ratings issued on our companies by these agencies are announced publicly and are available directly from the agencies. For furtherOur Internet site (www.ir.archcapgroup.com, under Credit Ratings) contains information about our ratings, but such information on our financial strength and/or issuer ratings, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources.”website is not incorporated by reference into this report.
COMPETITION

The worldwide reinsurance and insurance businesses are highly competitive. We compete, and will continue to compete, with major U.S. and non-U.S. insurers and reinsurers, some of which have greater financial, marketing and management resources than we have and longer-term relationships with insureds and brokers than we have had. We compete with other insurers and reinsurers primarily on the basis of overall financial strength, ratings assigned by independent rating agencies, geographic scope of business, strength of client relationships, premiums charged, contract terms and conditions, products and services offered, speed of claims payment, reputation, employee experience, and qualifications and local presence.


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In our insurance business, we compete with insurers that provide specialty property and casualty lines of insurance, including Alleghany Corporation, American Financial Group, Inc., American International Group, Inc., AXA XL, AXIS Capital Holdings Limited, Berkshire Hathaway, Inc., Chubb Limited, CNA Financial Corp., Everest National Insurance Company, Fairfax Financial Holdings Limited, The Hartford Financial Services Group, Inc., Liberty Mutual Insurance, Lloyd’s, Markel Insurance Company, RLI Corp., Sompo International, Tokio Marine HCC, The Travelers Companies, Inc., W.R. Berkley Corp. and Zurich Insurance Group.
In our reinsurance business, we compete with reinsurers that provide property and casualty lines of reinsurance, including
Alleghany Corporation, American International Group, Argo International Holdings, Ltd., AXA XL, AXIS Capital Holdings Limited, Berkshire Hathaway, Inc., Chubb Limited, Everest Re Group Ltd., Hannover Rückversicherung AG,ck SE, Lloyd’s, Markel Global Reinsurance, Munich Re Group, PartnerRe Ltd., RenaissanceRe Holdings Ltd., SCOR Global P&C, SCOR Global Life, Sompo International and Swiss Reinsurance Company and Validus Re.Company.
In our U.S. mortgage business, we compete with five active U.S. mortgage insurers, which include the mortgage insurance subsidiaries of Essent Group Ltd., Genworth Financial Inc., MGIC Investment Corporation, NMI Holdings Inc. and Radian Group Inc. The private mortgage insurance industry is highly competitive. Private mortgage insurers generally compete on the basis of underwriting guidelines, pricing, terms and conditions, financial strength, product and service offerings, customer relationships, reputation, the strength of management, technology, and innovation in the delivery and servicing of insurance products. Arch MI U.S. and other private mortgage insurers compete with federal and state government agencies that sponsor their own mortgage insurance programs. The private mortgage insurers’ principal government competitor is the Federal Housing Administration (“FHA”) and, to a lesser degree, the U.S. Department of Veterans Affairs (“VA”). Future changes to the FHA program may impact the demand for private mortgage insurance.
Arch MI U.S. and other private mortgage insurers increasingly compete with multi-line reinsurers and capital markets alternatives to private mortgage insurance. The GSEs continued their respective mortgage credit risk transfer (“CRT”) programs including the use of front and back-end transactions with multiline reinsurers. These transactions continue to create opportunities for multiline property casualty reinsurance groups and capital markets participants. The ongoing expansion of the GSEs risk transfer programs continue to attract additional reinsurers into the market with approximately 40 reinsurers now competing for business.
For other U.S. risk sharing products and non-U.S. mortgage insurance opportunities, we have also seen increased
competition from well capitalized and highly rated multiline reinsurers. It is our expectation that the depth and capacity of competitors from this segment will continue to increase over the next several years as more residential mortgage credit risk is borne by private capital.


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ENTERPRISE RISK MANAGEMENT

General. Enterprise Risk Management (“ERM”) is a key element in our philosophy, strategy and culture. We employ an ERM framework that includes underwriting, reserving, investment, credit and operational risks. Risk appetite and exposure limits are set by our executive management team, reviewed with the Board and its committees and routinely discussed with business unit management. These limits are articulated in our risk appetite statement, which details risk appetite, tolerances and limits for each major risk category, and are integrated into our operating guidelines. Exposures are aggregated and monitored periodically by our corporate risk management team. The reporting, review and approval of risk management information is integrated into our annual planning process, capital modeling and allocation, reinsurance purchasing strategy and reviewed at insurance business reviews, reinsurance underwriting meetings and board level committees.
Risk Management Process and Procedures. The following narrative provides an overview of our risk management framework and our methodology for identifying, measuring, managing and reporting on the key risks affecting us. It outlines our approach to risk identification and assessment and provides an overview of our risk appetite and tolerance for each of the following major risks: underwriting (insurance) risk including pricing, reserving and catastrophe; investment including market and liquidity risks; strategic risk; group risk including governance and capital market risk; credit risk; and operational risk, including regulatory, investor relations (reputational risk), rating agency and outsourcing risks.
The framework includes details of our risk philosophy and policies to address the material risks confronting us; and compliance, approach and procedures to control and or mitigate these risks. The actions and policies implemented to meet our business management and regulatory obligations form the core of this framework. We have adopted a holistic approach to risk management by analyzing risk from both a top-down and bottom-up perspective.
Risk Identification and Assessment. The Finance, Investment and Risk Committee (“FIR Committee”), Audit Committee and Underwriting Oversight Committee of the Board oversee the top-down and bottom-up review of our risks. Given the nature and scale of our operations, these committees consider all aforementioned risks within the scope of the assessment. Arch Capital’s Chief Risk Officer (“CRO”) assists these committees


ARCH CAPITAL132019 FORM 10-K



in the identification and assessment of all key risks. The CRO is responsible for maintaining Arch Capital’s risk register and continually reviewing and challenging risk assessments, including the impact of emerging risks and significant business developments. Board approval is required for any new high level risks or change in inherent or residual designations.
Risk Monitoring and Control. Arch Capital’s risk management framework requires risk owners to monitor key risks on a continuous basis. The highest residual risks are actively managed by the FIR Committee. The remaining risks are managed and monitored at a process level by the risk owners and/or the CRO. Risk owners have ultimate responsibility for the day-to-day management of each designated risk, reporting to the CRO on the satisfactory management and control of the risk and timely escalation of significant issues that may arise in relation to that risk. The CRO is responsible for overseeing the monitoring of all risks across the business and for communicating to the relevant risk owners if heshe becomes aware of issues, or potential and actual breaches of risk appetite, relevant to the assigned risks. A key element of these monitoring activities is the evaluation of our position relative to risk tolerances and limits approved by the Board.
Risk Reporting. Quarterly, the CRO compiles the results of the key risk review process into a report to the FIR Committee for review and discussion at their quarterly meeting. The report includes an overview of selected key risks; a risk dashboard that depicts the status of risk limit and tolerance metrics; changes in the rating of high level risks in the Arch Capital risk register; a risk dashboard that depicts the statusand summaries of risk limit and tolerance metrics; a summary ofour largest exposures and concentration risks; and our reinsurance arrangements, including outstanding and uncollectible recoveries.recoverables. If necessary, risk management matters reviewed at the FIR Committee meeting are presented for discussion by the Board. The CRO is responsible for immediately escalating any significant risk matters to executive management, the FIR Committee and/or the Board for approval of the required remediation. As part of our corporate governance, the Board and certain of its committees hold regular executive sessions with members of our management team. These sessions are intended to ensure an open and frank dialogue exists about various forms of risk across the organization.
Implementation and Integration. We believe that an integrated approach to developing, measuring and reporting our Own Risk and Solvency Assessment (“ORSA”) is an integral part of the risk management framework. The ORSA process provides the link between Arch Capital’s risk profile, its board-approved risk appetite including approved risk tolerances and limits, its business strategy and its overall solvency requirements. The ORSA is the entirety of the processes and procedures employed to identify, assess, monitor, manage, and report the short- and long-term risks we face or may face and to determine the capital necessary to ensure that our overall solvency needs are met at all times. The ORSA also makes the link between actual reported results and the capital assessment.
The ORSA is the basis for risk reporting to the Board and its committees and acts as a mechanism to embed the risk management framework within our decision making processes and operations. The Board has delegated responsibility for supervision and oversight of the ORSA to the FIR Committee.


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This oversight includes regular reviews of the ORSA process and output. An ORSA report is produced at least annually and the results of each assessment are reported to the Board. The Board actively participates in the ORSA process by steering how the assessment is performed and challenging its results. This assessment is also taken into account when formulating strategic decisions.
The ORSA process and reporting are integral parts of our business strategy, tailored specifically to fit into our organizational structure and risk management system with the appropriate techniques in place to assess our overall solvency needs, taking into consideration the nature, scale and complexity of the risks inherent in the business.
We also take the results of the ORSA into account for our system of governance, including long-term capital management, business planning and new product development. The results of the ORSA also contributes to various strategic decision-making including how best to optimize capital management, establishing the most appropriate premium levels and deciding whether to retain or transfer risks.
REGULATION

General
Our insurance and reinsurance subsidiaries are subject to varying degrees of regulation and supervision in the various jurisdictions in which they operate. We are subject to extensive regulation under applicable statutes in these countries and any other jurisdictions in which we operate. The current material regulations under which we operate are described below. We may become subject in the future to regulation in new jurisdictions or to additional regulations in existing jurisdictions.
Bermuda
General. Our Bermuda insurance operating subsidiary, Arch Re Bermuda, is a Class 4 general business insurer and a Class C long-term insurer, and is subject to the Insurance Act 1978 of Bermuda and related regulations, as amended (“Insurance Act”). The Insurance Act imposes certain solvency and liquidity standards and auditing and reporting requirements and grants the Bermuda Monetary Authority (the “BMA”)BMA powers to supervise, investigate, require information and demand the
production of documents and intervene in the


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affairs of insurance companies. Significant requirements include the appointment of an independent auditor, the appointment of a loss reserve specialist, the appointment of a principal representative in Bermuda, the filing of annual Statutory Financial Returns, the filing of annual financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”), the filing of an annual capital and solvency return, compliance with minimum and enhanced capital requirements, compliance with certain restrictions on reductions of capital and the payment of dividends and distributions, compliance with group solvency and supervision rules, if applicable, and compliance with the Insurance Code of Conduct (relating to corporate governance, risk management and internal controls).
Arch Re Bermuda must also comply with a minimum liquidity ratio and minimum solvency margin in respect of its general business. The minimum liquidity ratio requires that the value of relevant assets must not be less than 75% of the amount of relevant liabilities. The minimum solvency margin, which varies depending on the class of the insurer, is determined as a percentage of either net reserves for losses and LAEloss adjustment expenses (“LAE”) or premiums or pursuant to a risk-based capital measure. Arch Re Bermuda is also subject to an enhanced capital requirement (“ECR”) which is established by reference to either the Bermuda Solvency Capital Requirement model (“BSCR”) or an approved internal capital model. The BSCR model is a risk-based capital model which provides a method for determining an insurer’s capital requirements (statutory capital and surplus) by taking into account the risk characteristics of different aspects of the insurer’s business. The BMA has established a target capital level for each Class 4 insurer equal to 120% of its enhanced capital requirement. While a Class 4 insurer is not currently required to maintain its available statutory economic capital and surplus at this level, the target capital level serves as an early warning tool for the BMA, and failure to maintain statutory capital at least equal to the target capital level will likely result in increased regulatory oversight. As a Class C insurer, Arch Re Bermuda is also required to maintain available statutory economic capital and surplus in respect of its long-term business at a level equal to or in excess of its long-term enhanced capital requirement which is established by reference to either the Class C BSCR model or an approved internal capital model.
Arch Re Bermuda is prohibited from declaring or paying any dividends during any financial year if it is in breach of its general business or long-term business enhanced capital requirements, minimum solvency margins or its general business minimum liquidity ratio or if the declaration or payment of such dividends would cause such a breach. If it has failed to meet its minimum solvency margins or minimum liquidity ratio on the last day of any financial year, Arch Re Bermuda will be prohibited, without the approval of the BMA, from declaring or paying any dividends during the next financial year. In addition, Arch Re Bermuda is prohibited from declaring or paying in any financial


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year dividends of more than 25% of its total statutory capital and surplus (as shown on its previous financial year’s statutory balance sheet) unless it files (at least seven days before payment of such dividends) with the BMA an affidavit stating that it will continue to meet the required margins.Without the approval of the BMA, Arch Re Bermuda is prohibited from reducing by 15% or more its total statutory capital as set out in its previous year’s financial statements and any application for such approval must include an affidavit stating that it will continue to meet the required margins.
On July 30, 2018 theThe Insurance Amendment (No. 2) Act 2018 amended the Insurance Act to provide for the prior payment of policyholders’ liabilities ahead of general unsecured creditors in the event of the liquidation or winding up of an insurer. The amendments provide inter alia that,subject to certain statutorily preferred debts, the insurance debts of an insurer must be paid in priority to all other unsecured debts of the insurer. Insurance debt is defined as a debt to which an insurer is or may become liable pursuant to an insurance contract excluding debts owed to an insurer under an insurance contract where the insurer is the person insured.


Group Supervision. The BMA acts as group supervisor of our group of insurance and reinsurance companies (“Group”) and has designated Arch Re Bermuda as the designated insurer (“Designated Insurer”). As our Group supervisor, the BMA performs a number of functions including: (i) coordinating the gathering and dissemination of information for other regulatory authorities; (ii) carrying out supervisory reviews and assessments of our Group; (iii) carrying out assessments of our Group's compliance with the rules on solvency, risk concentration, intra-group transactions and good governance procedures; (iv) planning and coordinating, through regular meetings with other authorities, supervisory activities in respect of our Group; (v) coordinating any enforcement action that may need to be taken against our Group or any Group members; and (vi) coordinating meetings of colleges of supervisors in order to facilitate the carrying out of these functions. As Designated Insurer, Arch Re Bermuda is required to facilitate compliance by our Group with the group insurance solvency and supervision rules.
On an annual basis, the Group is required to file Group statutory financial statements, a Group statutory financial return, a Group capital and solvency return, audited Group financial statements, a Group Solvency Self-Assessment (“GSSA”), and a financial condition report with the BMA. The GSSA is designed to document our perspective on the capital resources necessary to achieve our business strategies and remain solvent, and to provide the BMA with insights on our risk management, governance procedures and documentation related to this process. In addition, the Designated Insurer is required to file quarterly group financial returns with the BMA. The Group is also required to maintain available Group statutory economic capital and surplus in an amount that is at least equal to the


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group enhanced capital requirement (“Group ECR”) and the BMA has established a group target capital level equal to 120% of the Group ECR.
The BMA maintains supervision over the controllers of all Bermuda registered insurers, and accordingly, any person who, directly or indirectly, becomes a holder of at least 10%, 20%, 33% or 50% of our ordinary shares must notify the BMA in writing within 45 days of becoming such a holder (or ceasing to be such a holder). The BMA may object to such a person and require the holder to reduce its holding of ordinary shares and direct, among other things, that voting rights attaching to the ordinary shares shall not be exercisableexercisable.
Economic Substance Act. During 2017, the EU’s Economic and Financial Affairs Council released a list of non-cooperative jurisdictions for tax purposes. The stated purpose of this list, and accompanying report, was to promote good governance worldwide in order to maximize efforts to prevent tax fraud and tax evasion. Bermuda was not on the list of non-cooperative jurisdictions, but was referenced in the report (along with approximately 40 other jurisdictions) as having committed to address concerns relating to economic substance by December 31, 2018. In accordance with that commitment, Bermuda enacted the Economic Substance Act 2018 (as amended) of Bermuda and its related regulations (together, the “ES Act”). The ES Act came into force on January 1, 2019, and provides that a registered entity other than an entity which is resident for tax purposes in certain jurisdictions outside Bermuda (“non-resident entity”) that carries on as a business any one or more of the “relevant activities” referred to in the ES Act must comply with economic substance requirements. The list of “relevant activities” includes carrying on any one or more of the following activities: banking, insurance, fund management, financing, leasing, headquarters, shipping, distribution and service center, intellectual property and holding entities. Under the ES Act, if a company is engaged in one or more “relevant activities”, it is required to maintain a substantial economic presence in Bermuda and to comply with the economic substance requirements set forth in the ES Act. A company will comply with those economic substance requirements if it: (a) is managed and directed in Bermuda; (b) undertakes “core income generating activities” (as may be prescribed under the ES Act) in Bermuda in respect of the relevant activity; (c) maintains adequate physical presence in Bermuda; (d) has adequate full time employees in Bermuda with suitable qualifications; and (e) incurs adequate operating expenditure in Bermuda in relation to the relevant activity undertaken by it.
Companies that carry on insurance as a relevant activity are generally considered to operate in Bermuda with adequate substance, with respect to their insurance business, if they comply with the existing provisions of (a) the Companies Act 1981 relating to corporate governance; and (b) the Insurance Act 1978, that are applicable to the economic substance requirements, and the Registrar will have regard to such
companies’ compliance with the Insurance Act 1978 (in addition to compliance with the Companies Act 1981) in his assessment of compliance with the economic substance requirements. That being said, such companies are still required to complete and file a Declaration Form, with the Bermuda Registrar of Companies and the Registrar will also have regard to the information provided in that Declaration Form in making his assessment of compliance with the ES Act.
Bermuda National Pension Scheme. The National Pension Scheme (Occupational Pensions) Amendment Act 2019 (the “NPS Amendment Act”), the provisions of which come into force on different dates, amends the existing legislation and regulations requiring employers to establish, register fund and maintain occupational pension plans. The NPS Amendment Act contains extensive amendments to the National Pension Scheme (Occupational Pensions) Act 1998 (the “NPS Act”) as amended that enhance existing provisions and introduce new provisions including provisions relating to non-Bermudian employees, civil penalties, Guidance Notes and hardship benefits for persons who are retired.
The NPS Amendment Act extends the requirement to provide an occupational pension plan to all employees meeting the eligibility criteria, with the exception of a person granted permission under the Bermuda Immigration and Protection Act 1956 to engage in gainful occupation in Bermuda for less than an aggregate period not exceeding twelve months, with effect from March 2, 2020. Historically and until such date, employers must only provide an occupational pension plan to Bermudians and the husband or wife of a Bermudian.
United States
General. Our U.S. based insurance operating subsidiaries are subject to extensive governmental regulation and supervision by the states and jurisdictions in which they are domiciled, licensed and/or approved to conduct business. The insurance laws and regulations of the state of domicile have the most significant impact on operations. We currently have U.S. insurance and/or reinsurance subsidiaries domiciled in Delaware, North Carolina, Missouri,Wisconsin, Kansas and the District of Columbia. State insurance regulation and supervision is designed to protect policyholders rather than investors. Generally, state regulatory authorities have broad regulatory powers over such matters as licenses, standards of solvency, premium rates, policy forms, marketing practices, claims practices, investments, methods of accounting, form and content of financial statements, certain aspects of governance, enterprise risk management,ERM, amounts we are required to hold as reserves for future payments, minimum capital and surplus requirements, annual and other report filings and transactions among affiliates. Our U.S. based subsidiaries are required to file detailed quarterly statutory financial statements with state insurance regulators. In addition, regulatory authorities conduct periodic financial, claims and market conduct examinations. Certain insurance


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regulatory requirements are highlighted below. In addition to regulation applicable generally to U.S. insurance and reinsurance companies, our U.S. mortgage insurance operations are affected by federal and state regulation relating to mortgage insurers, mortgage lenders, and the origination, purchase and sale of residential mortgages. Arch Insurance Company Europe(U.K.) is also subject to certain governmental regulation and supervision in the states where it writes excess and surplus lines insurance.
Holding Company Regulation. All states have enacted legislation that regulates insurance holding company systems. These regulations generally provide that each insurance company in the system is required to register with the insurance department of its state of domicile and furnish information concerning the operations of companies within the holding company system which may materially affect the operations, management or financial condition of the insurers within the


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system. Notice to the state insurance departments is required prior to the consummation of certain material transactions between an insurer and any entity in its holding company system and certain transactions may not be consummated without the applicable insurance department’s prior approval or non-disapproval after receiving notice. The holding company acts also prohibit any person from directly or indirectly acquiring control of a U.S. insurance or reinsurance company unless that person has filed an application with specified information with such company’s domiciliary commissioner and has obtained the commissioner’s prior approval. Under most states’ statutes acquiring 10% or more of the voting securities of an insurance company or its parent company is presumptively considered an acquisition of control of the insurance company, although such presumption may be rebutted.
The National Association of Insurance Commissioners (“NAIC”) has adopted amendments to the Insurance Holding Company System Regulatory Act and Regulation, which, among other changes, introduce the concept of “enterprise risk” within an insurance holding company system. When the amendments are adopted by a particular state, the amended Insurance Holding Company System Regulatory Act and Regulation impose more extensive informational requirements on parents and other affiliates of licensed insurers or reinsurers with the purpose of protecting them from enterprise risk, including requiring an annual enterprise risk report by the ultimate controlling person identifying the material risks within the insurance holding company system that could pose enterprise risk to the licensed companies and requiring a person divesting its controlling interest to make a confidential advance notice filing.
Regulation of Dividends and Other Payments from Insurance Subsidiaries. The ability of an insurer to pay dividends or make other distributions is subject to insurance regulatory limitations of the insurer’s state of domicile. Such laws generally limit the payment of dividends or other distributions above a specified
level. Dividends or other distributions in excess of such thresholds are “extraordinary” and are subject to prior notice and approval, or non-disapproval after receiving notice.
Credit for Reinsurance. Arch Re U.S. is subject to insurance regulation and supervision that is similar to the regulation of licensed primary insurers. However, except for certain mandated provisions that must be included in order for a ceding company to obtain credit for reinsurance ceded, the terms and conditions of reinsurance agreements generally are not subject to regulation by any governmental authority.
A primary insurer ordinarily will enter into a reinsurance agreement only if it can obtain credit for the reinsurance ceded on its U.S. statutory-basis financial statements. As a result of the requirements relating to the provision of credit for reinsurance, and Arch Re U.S. and Arch Re Bermuda are
indirectly subject to certain regulatory requirements imposed by jurisdictions in which ceding companies are domiciled.
In general, credit for reinsurance is allowed if the reinsurer is licensed or “accredited” in the state in which the primary insurer is domiciled; or if none of the above applies, to the extent that the reinsurance obligations of the reinsurer are collateralized appropriately, typically through the posting of a letter of credit for the benefit of the primary insurer or the deposit of assets into a trust fund established for the benefit of the primary insurer. Most states have adopted provisions of the NAIC Credit for Reinsurance Model Law and Regulation that allow full credit to U.S. ceding insurers for reinsurance ceded to reinsurers that have been approved as “certified reinsurers” based upon less than 100% collateralization. Arch Re Bermuda is approved as a “certified reinsurer” in 3335 states.
OnIn April 4, 2018, the U.S. and the European Union (“EU”)EU entered into the Bilateral Agreement between the United States of America and the European Union on Prudential Matters Regarding Insurance and Reinsurance (the “EU-US Covered Agreement”) that, among other things, would eliminate reinsurance collateral requirements for qualified U.S. reinsurers operating in the EU insurance market, and eliminate reinsurance collateral requirements for qualified EU reinsurers operating in the U.S. insurance market. In December 2018, the U.S. Secretary of the Treasury and the U.S. Trade Representative announced that they had reached agreement with the U.K. on a covered agreement (“UKU.K. Covered Agreement”) that would extend terms nearly identical to the EU Covered Agreement to insurers and reinsurers operating in the U.K. should the United Kingdom ultimately leave the EU. The NAIC is finalizinghas adopted amendments to the Credit for Reinsurance Model Law and Regulation that would implement the EU-US Covered Agreement and the UKU.K. Covered Agreement and eliminate reinsurance collateral requirements for qualified reinsurers domiciled in other jurisdictions deemed “Reciprocal Jurisdictions”..The NAIC has published a list of Reciprocal Jurisdictions that includes Bermuda, but it is possible that one or more states that adopt


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the amended Credit for Reinsurance Model Law and Regulation may not accept Bermuda as a Reciprocal Jurisdiction.
Risk Management and ORSA. In 2012, the NAIC adopted the Risk Management and Own Risk and Solvency Assessment Model Act, which requires domestic insurers to maintain a risk management framework and establishes a legal requirement for domestic insurers to conduct an ORSA in accordance with the NAIC’s ORSA Guidance Manual. The ORSA Model Act provides that domestic insurers, or their insurance group, must regularly conduct an ORSA consistent with a process comparable to the ORSA Guidance Manual process. The ORSA Model Act also provides that, no more than once a year, an insurer’s domiciliary regulator may request that an insurer submit an ORSA summary report, or any combination of reports that together contain the information described in the ORSA Guidance Manual, with respect to the insurer and/or the insurance group of which it is a member. If and when the ORSA Model Act is adopted by an individual state, the state may


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impose additional internal review and regulatory filing requirements on licensed insurers and their parent companies.
Cybersecurity and Privacy. The NAIC has adopted an Insurance Data Security Model Law, which, when adopted by the states, will require insurers, insurance producers and other entities required to be licensed under state insurance laws to comply with certain requirements under state insurance laws, such as developing and maintaining a written information security program, conducting risk assessments and overseeing the data security practices of third-party vendors. In addition, certain state insurance regulators are developing or have developed regulations that may impose regulatory requirements relating to cybersecurity on insurance and reinsurance companies (potentially including insurance and reinsurance companies that are not domiciled, but are licensed, in the relevant state). For example, the New York State Department of Financial Services has adopted a regulation pertaining to cybersecurity for all banking and insurance entities under its jurisdiction, effective as of March 1, 2017, which applies to us. Privacy legislation and regulation has also become an issue of increasing focus in many states. In addition, the California legislature passed the California Consumer Privacy Act of 2018,(“CCPA”) which takesalso applies to us, came into effect on January 1, 2020, bothand grants California consumers certain rights to, among other things, access and delete data about them subject to certain exceptions, as well as a private right of which apply to us.Weaction with statutory penalties. Additional privacy laws expanding CCPA have already been proposed in California, and a range of new privacy laws are also under consideration in other states, as well as by the federal government. We cannot predict the impact these evolving laws and regulations may have on our business, financial condition or results of operations, but we could incur additional costs resulting from compliance with such laws and regulations.
Risk-Based Capital Requirements. Licensed U.S. property and casualty insurance and reinsurance companies are subject to risk-based capital requirements that are designed to assess capital adequacy and to raise the level of protection that statutory surplus provides for policyholder obligations. The risk-based capital model for property and casualty insurance companies measures three major areas of risk facing property and casualty insurers: underwriting, which encompasses the risk of adverse loss developments and inadequate pricing; declines in asset values arising from credit risk; and declines in asset values arising from investment risks. An insurer will be subject to varying degrees of regulatory action depending on how its statutory surplus compares to its risk-based capital calculation. Under the approved formula, an insurer’s total adjusted capital is compared to its authorized control level risk-based capital. If this ratio is above a minimum threshold, no company or regulatory action is necessary. Below this threshold are four distinct action levels at which an insurer’s domiciliary state regulator can intervene with increasing degrees of authority over an insurer as the ratio of surplus to risk-based capital requirement decreases. The mildest regulatory action requires an insurer to submit a plan for corrective action; the most severe requires an insurer to be rehabilitated or liquidated.
Our mortgage insurance operations are not currently subject to state risk-based capital requirements, but rather are subject to state risk to capital or minimum policyholder position requirements. The NAIC has established a Mortgage Guaranty Insurance Working Group which is engaged in developing
changes to the Mortgage Guaranty Insurers Model Act, including the development of a risk based capital model unique to mortgage guaranty insurers.
Guaranty Funds. Most states require all admitted insurance companies to participate in their respective guaranty funds which cover certain claims against insolvent insurers. Solvent insurers licensed in these states are required to cover the losses paid on behalf of insolvent insurers by the guaranty funds and are generally subject to annual assessments in the states by the guaranty funds to cover these losses. Mortgage guaranty insurance, among other lines of business, is typically exempt from participation in guaranty funds.
Federal Regulation. Although state regulation is the dominant form of regulation for insurance and reinsurance business, a number of federal laws affect and apply to the insurance industry. The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (“Dodd-Frank”) created the Federal Insurance Office (“FIO”) within the Department of Treasury, which is not a federal regulator or supervisor of insurance, but monitors the insurance industry for systemic risk, administers the Terrorism Risk Insurance Program Reauthorization Act of 2015 (“TRIPRA”TRIP”), consults with the states regarding insurance matters and develops federal policy on aspects of international insurance matters. See “Risk Factors-RisksFactors—Risks Related to Our Industry-WeIndustry-We could face unanticipated losses from war, terrorism, cyber-attacks,


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pandemics and political instability, and these or other unanticipated losses could have a material adverse effect on our financial condition and results of operationsoperations” for more information on TRIPRA.TRIP. In addition, FIO is authorized to assist the U.S. Secretary of the Treasury in negotiating “covered agreements” between the U.S. and one or more foreign governments or regulatory authorities that address insurance prudential measures.
Certain other federal laws also directly or indirectly impact mortgage insurers, including the Real Estate Settlement Procedures Act of 1974 (“RESPA”), the Homeowners Protection Act of 1998 (“HOPA”), the Equal Credit Opportunity Act, the Fair Housing Act, the Truth In Lending Act (“TILA”), the Fair Credit Reporting Act of 1970 (“FCRA”), and the Fair Debt Collection Practices Act. Among other things, these laws and their implementing regulations prohibit payments for referrals of settlement service business, require fairness and non-discrimination in granting or facilitating the granting of credit, govern the circumstances under which companies may obtain and use consumer credit information, define the manner in which companies may pursue collection activities, and require disclosures of the cost of credit and provide for other consumer protections.
GSE Eligible Mortgage Insurer Requirements. GSEs impose requirements on private mortgage insurers so that they may be eligible to insure loans sold to the GSEs, known as the Private Mortgage Insurer Eligibility Requirements or “PMIERs.”(“PMIERs”). The


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PMIERs apply to our eligible mortgage insurers, but do not apply to Arch Mortgage Guaranty Company, which is not GSE-approved. The PMIERs impose limitations on the type of risk insured, the forms and insurance policies issued, standards for the geographic and customer diversification of risk, procedures for claims handling, acceptable underwriting practices, standards for certain reinsurance cessions and financial requirements, among other things. The financial requirements require an eligible mortgage insurer’s available assets, which generally include only the most liquid assets of an insurer, to meet or exceed “minimum required assets” as of each quarter end. Minimum required assets are calculated from PMIERs tables with several risk dimensions (including origination year, original loan-to-value and original credit score of performing loans, and the delinquency status of non-performing loans). Our eligible mortgage insurers satisfied the PMIERs’ financial requirements as of December 31, 2018.2019.
On September 27, 2018,Canada
Arch Insurance Canada and Arch Re Canada are subject to federal, as well as provincial and territorial, regulation in Canada in the GSEs released revised Private Mortgage Insurer Eligibility Requirementsprovinces and territories in which they underwrite insurance/reinsurance. The Office of the Superintendent of Financial Institutions (“OSFI”) is the federal regulatory body that, under the Insurance Companies Act (Canada), prudentially regulates federal Canadian and non-Canadian insurance and
reinsurance companies operating in Canada. Arch Insurance Canada is licensed to carry on insurance business by OSFI and in each province and territory. Arch Re Canada is licensed tocarry on reinsurance business by OSFI and in the provinces of Ontario and Quebec.
Under the Insurance Companies Act (Canada), Arch Insurance Canada is required to maintain an adequate amount of capital in Canada, calculated in accordance with a test promulgated by OSFI called the Minimum Capital Test, and Arch Re Canada is required to maintain an adequate margin of assets over liabilities in Canada, calculated in accordance with a test promulgated by OSFI called the Branch Adequacy of Assets Test. OSFI has implemented a risk-based methodology for assessing insurance/reinsurance companies operating in Canada known as its “Supervisory Framework.” In applying the Supervisory Framework, OSFI considers the inherent risks of the business and the quality of risk management for each significant activity of each operating entity. Under the Insurance Companies Act (Canada), approval of the Minister of Finance (Canada) is required in connection with certain acquisitions of shares of, or “revised PMIERs”. The revised PMIERs become effective on March 31, 2019control of, Canadian insurance companies such as Arch Insurance Canada, and are not expectednotice to have a significant impact on our eligible mortgage insurers operations and/or have a material impact on their capital position. While not yet effective, our eligible mortgage insurers satisfiedapproval of OSFI is required in connection with the revised PMIERs’ financial requirementspayment of dividends by or redemption of shares by Canadian insurance companies such as of December 31, 2018.Arch Insurance Canada.
United Kingdom
General. The Prudential Regulation Authority (“PRA”) and the Financial Conduct Authority (“FCA”) regulate insurance and reinsurance companies and the FCA regulates firms carrying on insurance mediation activities operating in the U.K. both under the Financial Services and Markets Act 2000 (the “FSMA”). In May 2004, Arch Insurance (U.K.) (formerly Arch Insurance Company Europe(Europe) Limited) was granted the relevant permissions for the classes of insurance business which it underwrites in the U.K. In 2009, AUAL was licensed and authorized by the relevant U.K. regulator and the Lloyd’s Franchise Board and holds the relevant permissions for the classes of insurance business which are underwritten in the U.K. by Arch Syndicate 2012. Arch Syndicate 2012 has one corporate member (the legal entity through which Funds at Lloyd’s are deposited), Arch Syndicate Investments Ltd. (“ASIL”). The Lloyd’s syndicates managed by BMAL have 11 corporate members. All U.K. companies are also subject to a range of statutory provisions, including the laws and regulations of the Companies Act 2006 (as amended) (the “U.K. Companies Act”).
The objectives of the PRA are to promote the safety and soundness of all firms it supervises and to secure an appropriate degree of protection for policyholders. The objectives of the FCA are to ensure customers receive financial services and products that meet their needs, to promote sound financial systems and markets and to ensure that firms are stable and


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resilient with transparent pricing information and which compete effectively and have the interests of their customers and the integrity of the market at the heart of how they run their business. The PRA has responsibility for the prudential
regulation of banks and insurers, while the FCA has responsibility for the conduct of business regulation in the wholesale and retail markets. The PRA and the FCA adopt separate methods of assessing regulated firms on a periodic basis. Arch Insurance Europe(U.K.), AUAL and AUALBMAL are subject to periodic assessment by the PRA along with all regulated firms. Arch Insurance Company Europe(U.K.), AUAL and AUALBMAL are subject to regulation by both the PRA and FCA. Castel is authorized and regulated by the FCA and is subject to periodic assessment and review by the FCA.
Lloyd’s Supervision. The operations of AUAL and related(as managing agent of Arch Syndicate 20122012) and itsBMAL (as managing agent of Barbican Syndicate 1955 and Arcus Syndicate 1856) and each syndicate’s respective corporate member, ASIL,members, are subject to the byelaws and regulations made by (or on behalf of) the Council of Lloyd’s, and requirements made under those byelaws. The Council of Lloyd’s, established in 1982 by Lloyd’s Act 1982, has overall responsibility and control of Lloyd’s. Those byelaws, regulations and requirements provide a framework for the regulation of the Lloyd’s market, including specifying conditions in relation to underwriting and claims operations of Lloyd’s participants. Lloyd’s is also subject to the provisions of the FSMA. Lloyd's is authorized by the PRA and regulated by the PRA and FCA. Those entities acting within the Lloyd’s market are required to comply with the requirements of the FSMA and provisions of the PRA’s or FCA's rules, although the PRA has delegated certain of its powers, including some of those relating to prudential requirements, to Lloyd’s. ASIL, as aEach corporate member of Lloyd’s is required to contribute 0.5%a percentage of Arch Syndicate 2012’sthe member’s premium income limit for each year of account to the Lloyd’s central fund. The Lloyd’s central fund is available if members of Lloyd’s assets are not sufficient to meet claims for which the member is liable. As aEach corporate member of Lloyd’s, ASIL may also be required to contribute to the central fund by way of a supplement to a callable layer of up to 3% of Arch Syndicate 2012’sthe corresponding member’s premium income limit for the relevant year of account. In addition, AUAL, on behalfASIL as a member of Arch Syndicate 2012, isand Barbican Corporate Member Limited, as a member of Barbican Syndicate 1955, are each approved to underwrite excess and surplus lines insurance in most states in the U.S. through Lloyd’s licenses. Such activities must be in compliance with the Lloyd’s requirements.
Financial Resources. The European solvency framework and prudential regime for insurers and reinsurers, the Solvency II Directive 2009/138/EC “Solvency(“Solvency II”), took effect in full on January 1, 2016. See “European Union Insurance and Reinsurance Regulation—Union—Insurance and Reinsurance Regulatory Regime” below for additional details.
Arch Insurance Company Europe and(U.K.), AUAL (on behalf of Arch Syndicate 2012) and BMAL (on behalf of Barbican Syndicate 1955) are
currently required to meet economic risk-based solvency requirements imposed under Solvency II. Solvency II, together with European Commission “delegated acts” and guidance issued by the European Insurance and Occupational Pensions Authority (“EIOPA”) sets out classification and eligibility requirements, including the features which capital must display in order to qualify as regulatory capital.


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Financial Services Compensation Scheme. The Financial Services Compensation Scheme (“FSCS”) is a scheme established under FSMA to compensate eligible policyholders of insurance companies who may become insolvent. The FSCS is funded by the levies that it has the power to impose on all insurers. Arch Insurance Europe(U.K.) could be required to pay levies to the FSCS.
Restrictions on Acquisition of Control. Under FSMA, the prior consent of the PRA or FCA, as applicable, is required, before any person can become a controller or increase its control over any regulated company, including Arch Insurance Company Europe(U.K.) and AUAL, or over the parent undertaking of any regulated company. Therefore, the PRA's or FCA's prior consent, as applicable, is required before any person can become a controller of Arch Capital. Prior consent is also required from Lloyd’s before any person can become a controller or increase its control over a corporate member or a managing agent or a parent undertaking of a corporate member or managing agent. A controller is defined for these purposes as a person who holds (either alone or in concert with others) 10% or more of the shares or voting power in the relevant company or its parent undertaking.
Restrictions on Payment of Dividends. Under English law, all companies are restricted from declaring a dividend to their shareholders unless they have “profits available for distribution.” The calculation as to whether a company has sufficient profits is based on its accumulated realized profits minus its accumulated realized losses. U.K. insurance regulatory laws do not prohibit the payment of dividends, but the PRA or FCA, as applicable, requires that insurance companies, and insurance intermediaries and other regulated entities maintain certain solvency margins and may restrict the payment of a dividend by Arch Insurance Company Europe, AUAL or ASIL.(U.K.), BMAL and Castel.
European Union Considerations. Through their respective authorizationsFollowing the referendum in June 2016 in which a majority of voting U.K. citizens voted in favor of the U.K. leaving the EU and the approval of the Withdrawal Agreement by both the U.K. Parliament and the EU Parliament, the U.K. withdrew from the EU on January 31, 2020 (“Brexit”). The terms of Brexit are set forth in the U.K.,Withdrawal Agreement and provide for a Member Statetransition period of 11 months from January 31, 2020 until December 31, 2020 (unless a single extension of one to two years to this transition period is agreed between the U.K. government and the EU Arch Insurance Company Europe’sby June 30, 2020, although the U.K. government has indicated that


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no extension will be sought) during which time the U.K. will remain in the EU customs union and AUAL’s authorizations are recognized throughoutsingle market (“Transition Period”). During the European Economic Area (“EEA”), subject only to certain notification and application requirements.Transition Period, there will be no change in passporting rights for financial institutions in the U.K. This authorization enables Arch Insurance Company Europe(U.K.) and AUAL to exercise “passporting” rights which allows Arch Insurance Company Europe and AUAL to establish a branch in any other Member State of the EU, where such entity will be subject to the insurance regulations of each such Member State with respect to the conduct of its business in such Member State, but remain subject only to the financial and operational supervision by the PRA or FCA (as applicable). Through their respective authorizations in the U.K., Arch Insurance (U.K.)’s, AUAL’s, BMAL’s and Castel’s authorizations are currently recognized throughout the European Economic Area (“EEA”), subject only to certain notification and application requirements. The conditions for the establishment of branches in Member States of the EU are set out in Solvency II. Arch Insurance Company Europe(U.K.) currently has branches in Germany, Italy, Spain and Denmark and may establish branches in other Member States ofDenmark. During the EUTransition Period, through their passporting rights, our companies authorized in the future. Further, through its passporting rights, Arch Insurance Company Europe and AUALU.K. will continue to have the freedom to provide insurance services
anywhere in the EEA subject to compliance with certain rules governing such provision, including notification to the PRA or FCA, as applicable.
Following the referendum in June 2016 in which a majority of voting U.K. citizens voted in favor Under our Brexit plan, from January 2020, all of the EU insurance business of Arch Insurance (U.K.) is conducted by Arch Insurance (EU).
Unless the Transition Period is extended beyond December 31, 2020 (of which any single extension of one to two years must be agreed between the U.K. leavinggovernment and the EU (“Brexit”)by June 30, 2020), the U.K. withdrawal from the EUthere will lead tobe a loss of passporting rights for financial institutions in the U.K., except to the extent that any aspect of the regime is preserved in a separate agreement between the EU and the U.K. The long-term implications of Brexit on the Solvency II framework in the U.K. are uncertain after the expiration of the Transition Period. See “Risk Factors—Risks RelatedRelating to Our Industry—The United Kingdom’s referendum vote in favor of leavingU.K.’s Withdrawal from the EU could adversely affect us.”
Canada
Arch Insurance Canada and Arch Re Canada are subject to federal, as well as provincial and territorial, regulation in Canada in the provinces and territories in which they underwrite insurance/reinsurance. The Office of the Superintendent of Financial Institutions (“OSFI”) is the federal regulatory body that, under the Insurance Companies Act (Canada), prudentially regulates federal Canadian and non-Canadian insurance and reinsurance companies operating in Canada. Arch Insurance Canada is licensed to carry on insurance business by OSFI and in each province and territory. Arch Re Canada is licensed to carry on reinsurance business by OSFI and in the provinces of Ontario and Quebec.
Under the Insurance Companies Act (Canada), Arch Insurance Canada is required to maintain an adequate amount of capital in Canada, calculated in accordance with a test promulgated by OSFI called the Minimum Capital Test, and Arch Re Canada is required to maintain an adequate margin of assets over liabilities in Canada, calculated in accordance with a test promulgated by OSFI called the Branch Adequacy of Assets Test. OSFI has implemented a risk-based methodology for assessing insurance/reinsurance companies operating in Canada known as its “Supervisory Framework.” In applying the Supervisory Framework, OSFI considers the inherent risks of the business and the quality of risk management for each significant activity of each operating entity. Under the Insurance Companies Act (Canada), approval of the Minister of Finance (Canada) is required in connection with certain acquisitions of shares of, or control of, Canadian insurance companies such as Arch Insurance Canada, and notice to and/or approval of OSFI is required in connection with the payment of dividends by or redemption of shares by Canadian insurance companies such as Arch Insurance Canada.
Ireland
General. The CBOI regulates insurance and reinsurance companies and intermediaries authorized in Ireland. Our three Irish operating subsidiaries are Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe. Arch Re Europe was


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licensed and authorized by the CBOI as a non-life reinsurer in October 2008 and as a life reinsurer in November 2009. Arch MI EuropeInsurance (EU) was licensed and authorized by the CBOI as a non-life insurer in December 2011. As part of our Brexit planning, it was decided that Arch Insurance (EU) would became the platform for Arch's EU non-life insurance business. A change in business plan application was submitted to the CBOI and approval was received in February 2019. Arch Mortgage Insurance Designated Activity Company name was changed to Arch Insurance (EU) to reflect the expanded nature of the company's operations. Arch Underwriters Europe was
registered by the CBOI as an insurance and reinsurance intermediary in July 2014. Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe are subject to the supervision of the CBOI and must comply with Irish insurance acts and regulations as well as with directions and guidance issued by the CBOI.
Arch Re Europe and Arch MI EuropeInsurance (EU) are required to comply with Solvency II requirements. See “European Union Insurance and Reinsurance Regulation—Insurance—Insurance and Reinsurance Regulatory Regime” below for additional details. As an intermediary, Arch Underwriters Europe is subject to a different regulatory regime and is not subject to solvency capital rules, but must comply with requirements such as to maintain professional indemnity insurance and to have directors that are fit and proper. Our Irish subsidiaries are also subject to the general body of Irish company laws and regulations including the provisions of the Companies Act 2014.
Financial Resources. Arch Re Europe and Arch MI EuropeInsurance (EU) are required to meet economic risk-based solvency requirements imposed under Solvency II. Solvency II, together with European Commission “delegated acts” and guidance issued by EIOPA sets out classification and eligibility requirements, including the features which capital must display in order to qualify as regulatory capital.
Restrictions on Acquisitions. Under Irish law, the prior consent of the CBOI is required before any person can acquire or increase a qualifying holding in an Irish insurer or reinsurer, including Arch MI EuropeInsurance (EU) and Arch Re Europe, or their parent undertakings. A qualifying holding is defined for these purposes as a direct or indirect holding that represents 10% or more of the capital of, or voting rights, in the undertaking or makes it possible to exercise a significant influence over the management of the undertaking.
Restrictions on Payment of Dividends. Under Irish company law, Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe are permitted to make distributions only out of profits available for distribution. A company’s profits available for distribution are its accumulated, realized profits, so far as not previously utilized by distribution or capitalization, less its accumulated, realized losses, so far as not previously written off in a reduction or reorganization of capital duly made. Further, the CBOI has powers to intervene if a dividend payment were to lead to a breach of regulatory capital requirements.
European Union Considerations. As Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe are authorized by the CBOI in Ireland, a Member State of the EU, those authorizations are recognized throughout the EEA. Subject only to certain
notification and application requirements, Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe can provide services, or establish a branch, in any other Member State of the EEA. Although, in doing so, they may be subject


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to the laws of such Member States with respect to the conduct of business in such Member State, company law registrations and other matters, they will remain subject to financial and operational supervision by the CBOI only. Arch Re Accident & Health ApS (“Arch Re Denmark”) is an underwriting agency underwriting accident and health business for Arch Re Europe in Denmark. Arch Re Europe also has a branch in the U.K., which underwrites non-life reinsurance risk for Arch Re Europe. Arch Re Europe also has a branch outside the EEA, Arch Reinsurance Europe Designated Activity Company, Dublin (Ireland), Zurich Branch (“Arch Re Europe Swiss Branch”).
As part of its application for registration, Arch Underwriters Europe requested the CBOI to make the necessary notifications to permit it to provide insurance and reinsurance intermediary services in all EEA Member States. Arch Underwriters Europe currently has branches in the following EU countries: the U.K., Italy and Finland.
Following Brexit and the end of the Transition Period, the U.K.'s withdrawal from the EU will lead to a loss of passporting rights for EEA financial institutions (including our Irish operating subsidiaries) into the U.K., except to the extent that any aspect of the regime is preserved in a separate agreement between the EU and the U.K. Absent such agreement, the post-Brexit status and rules applicable to U.K. branches of EEA financial institutions will be primarily driven by U.K. law and regulation. See “Risks“Risk Factors—Risks Relating to Our Industry —The United Kingdom’s referendum vote in favor of leavingIndustry—The U.K.’s Withdrawal from the EU could adversely affect us.”
Switzerland
In December 2008, Arch Re Europe opened Arch Re Europe Swiss Branch as a branch office. As Arch Re Europe is domiciled outside of Switzerland and its activities are limited to reinsurance, the Arch Re Europe Swiss Branch in Switzerland is not required to be licensed by the Swiss insurance regulatory authorities.
In August 2014, Arch Underwriters Europe opened a branch office in Zurich (“Arch Underwriters Europe Swiss Branch”) to render reinsurance advisory services to certain group companies. Arch Underwriters Europe Swiss Branch is registered with the commercial register of the Canton of Zurich. Since its activities are limited to advisory services for reinsurance matters, the Arch Underwriters Europe Swiss Branch is not required to be licensed by the Swiss insurance regulatory authorities.


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European Union
Insurance and Reinsurance Regulatory Regime. Solvency II took effect in full on January 1, 2016. Solvency II imposes economic risk-based solvency requirements across all EU Member States and consists of three pillars: Pillar I-quantitative capital requirements, based on a valuation of the entire balance sheet; Pillar II-qualitative regulatory review, which includes governance, internal controls, enterprise risk management and supervisory review process; and Pillar III-market discipline, which is accomplished through reporting of the insurer’s financial condition to regulators and the public. Solvency II is supplemented by European Commission Delegated Regulation (EU) 2015/35 (the “Delegated Regulation”), other European Commission “delegated acts” and binding technical standards, and guidelines issued by EIOPA. The Delegated Regulation sets out more detailed requirements for individual insurance and reinsurance undertakings, as well as for groups, based on the overarching provisions of Solvency II, which together make up the core of the single prudential rulebook for insurance and reinsurance undertakings in the EU.
Insurers and reinsurers established in a Member State of the EU have the freedom to establish branches in and provide services to all EEA states. Arch Insurance Company Europe and AUAL, being established in the U.K. and regulated by the PRA and FCA, are able, subject to regulatory notifications and there being no objection from the relevant U.K. regulator and the Member States concerned, to establish branches and provide insurance and reinsurance services in all EEA Member States.
Following Brexit, the U.K.’s withdrawal from the EU will lead to a loss of passporting rights from U.K. financial institutions into the EU, except to the extent that any aspect of the regime
is preserved in a separate agreement between the U.K. and the U.K.EU. See “Risks“Risk Factors—Risks Relating to Our Industry –The United Kingdom’s referendum vote in favor of leavingIndustry—The U.K.’s Withdrawal from the EU could adversely affect us.”
Arch Re Europe and Arch MI Europe,Insurance (EU), being established in Ireland and authorized by the CBOI are able, subject to similar regulatory notifications and there being no objection from the CBOI and the Member States concerned, to establish branches and provide reinsurance services, and, in respect of Arch MI Europe,Insurance (EU), insurance services in all EEA states.
Solvency II does not prohibit EEA insurers from obtaining reinsurance from reinsurers licensed outside the EEA, such as Arch Re Bermuda. As such, and subject to the specific rules in each Member State, Arch Re Bermuda may do business from Bermuda with insurers in EEA Member States, but it may not directly operate its reinsurance business within the EEA. Article 172 of Solvency II provides that reinsurance contracts concluded by insurance undertakings in the EEA with reinsurers having their head office in a country whose solvency regime has been determined to be equivalent to Solvency II shall be
treated in the same manner as reinsurance contracts with undertakings in the EEA authorized under Solvency II. In this regard, with effect from January 1, 2016, the supervisory regime, including the solvency regime, in Bermuda has been determined to be equivalent to that laid down in Solvency II, except in relation to captives and special purpose insurers. Solvency II also includes specific measures providing for the supervision of insurance and reinsurance groups. However, as a consequence of the above determination of equivalence, pursuant to Article 260 of Solvency II, regulators within the EEA are required to rely on the worldwide group supervision exercised by the BMA. EIOPA has also indicated that, on a case by case basis, groups subject to this worldwide supervision may be exempted from any EEA sub-group supervision, where this results in more efficient supervision of the group and does not impair EEA supervisors in respect of their individual responsibilities.
The Insurance Distribution Directive ("IDD") was published in February 2016. EEA Member States were required to transpose the IDD by October 1, 2018. It replaces the existing Insurance Mediation Directive. The IDD applies to all distributors of insurance and reinsurance products (including insurers and reinsurers selling directly to customers) and strengthens the regulatory regime applicable to distribution activities through increased transparency, information and conduct requirements. The principal impact of the IDD is on the insurance market, however, requirements that apply across insurance and reinsurance include more specific conditions regarding knowledge and continuing professional development requirements for those involved in distribution of (re)insurance products. The IDD continues the existing ability for intermediaries established in a Member State of the EU to establish branches and provide services to all EEA states. Arch Underwriters Europe, being established in Ireland and


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authorized by the CBOI, is able, subject to regulatory notifications and there being no objection from the CBOI, to establish branches and provide services in all EEA states.
Privacy. The European General Data Protection Regulation (the “GDPR”) came into effect on May 25, 2018. The GDPR aims to introduce consistent data protection rules across the EU and EEA, and its scope extends to certain entities not established in the EEA if they process personal data or offer goods or services to, or monitor the behavior of, EEA data subjects. The GDPR contains a number of new requirements regarding the processing of personal data about individuals, including mandatory security breach reporting, new and strengthened individual rights, evidenced data controller accountability for compliance with the GDPR principles (including fairness and transparency), maintenance of data processing activity records and the implementation of “privacy by design,” including through the completion of mandatory Data Protection Impact Assessments in connection with higher risk data processing activities.

Switzerland

In December 2008, Arch Re Europe opened Arch Re Europe Swiss Branch as a branch office. As Arch Re Europe is domiciled outside of Switzerland and its activities are limited to reinsurance, the Arch Re Europe Swiss Branch in Switzerland is not required to be licensed by the Swiss insurance regulatory authorities.
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TableIn August 2014, Arch Underwriters Europe opened a branch office in Zurich (“Arch Underwriters Europe Swiss Branch”) to render reinsurance advisory services to certain group companies. Arch Underwriters Europe Swiss Branch is registered with the commercial register of Contentsthe Canton of Zurich. Since its activities are limited to advisory services for reinsurance matters, the Arch Underwriters Europe Swiss Branch is not required to be licensed by the Swiss insurance regulatory authorities.

Australia
APRA is an independent statutory authority that supervises institutions across banking, insurance and superannuation and promotes financial stability in Australia. Arch LMI was authorized by APRA in January 2019 to conduct monoline lenders’ mortgage insurance business in Australia. Major regulatory requirements that are applicable to Arch LMI as an insurance provider in Australia include requirements on minimum capital levels and compliance with corporate governance standards, including the risk management strategy for our Australian mortgage insurance business.
Hong Kong
The Hong Kong insurance industry is regulated by the Insurance Authority, the regulatory authority established pursuant to the
Insurance Ordinance (Cap. 41), whose principal function is to regulate and supervise the insurance industry for the promotion of the general stability of the insurance industry and for the protection of existing and potential policyholders. Arch MI Asia is authorized to carry on general business Class 14 (Credit) and Class 16 (Miscellaneous Financial Loss), in or from Hong Kong.
Major regulatory requirements that are applicable to Arch MI Asia as a general business insurer include requirements on minimum paid-up capital, minimum solvency margin and maintenance of assets in Hong Kong.
TAX MATTERS

The following summary of the taxation of Arch Capital and the taxation of our shareholders is based upon current law and is for general information only. Legislative, judicial or administrative changes may be forthcoming that could affect this summary.
The following legal discussion (including and subject to the matters and qualifications set forth in such summary) of certain tax considerations (a) under “—Taxation of Arch Capital—Bermuda” and “—Taxation of Shareholders—Bermuda” is based upon the advice of Conyers Dill & Pearman Limited, Hamilton, Bermuda and (b) under “—Taxation of Arch Capital-United States,” “—Taxation of Shareholders-United States Taxation,” “—Taxation of Our U.S. Shareholders” and “—United States Taxation of Non-U.S. Shareholders” is based upon the advice of Cahill Gordon & Reindel LLP, New York, New York (the advice of such firms does not include accounting matters, determinations or conclusions relating to the business or activities of Arch Capital). The summary is based upon current law and is for general information only. The tax treatment of a holder of our common or preferred shares, or of a person treated as a holder of our shares for U.S. federal income, state, local or non-U.S. tax purposes, may vary depending on the holder’s particular tax situation. Legislative, judicial or
administrative changes or interpretations may be forthcoming that could be retroactive and could affect the tax consequences to us or to holders of our shares.
Taxation of Arch Capital
Bermuda. Under current Bermuda law, Arch Capital is not subject to tax on income or profits, withholding, capital gains or capital transfers. Arch Capital has obtained from the Minister of Finance under the Exempted Undertakings Tax Protection Act 1966 of Bermuda an assurance that, in the event that Bermuda enacts legislation imposing tax computed on profits, income, any capital asset, gain or appreciation, or any tax in the nature of estate duty or inheritance, the imposition of any such tax shall not be applicable to Arch Capital or to any of our operations or our shares, debentures or other obligations until March 31, 2035. We could be subject to taxes in Bermuda after


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that date. This assurance will be subject to the proviso that it is not to be construed so as to prevent the application of any tax or duty to such persons as are ordinarily resident in Bermuda (we are not so currently affected) or to prevent the application of any tax payable in accordance with the provisions of the Land Tax Act 1967 of Bermuda or otherwise payable in relation to any property leased to us or our insurance subsidiary. We pay annual Bermuda government fees, and our Bermuda insurance and reinsurance subsidiary pays annual insurance license fees. In addition, all entities employing individuals in Bermuda are required to pay a payroll tax and other sundry taxes payable, directly or indirectly, to the Bermuda government.
United States. Arch Capital and its non-U.S. subsidiaries intend to conduct their operations in a manner that will not cause them to be treated as engaged in a trade or business in the U.S. and, therefore, will not be required to pay U.S. federal income taxes (other than U.S. excise taxes on insurance and reinsurance premium and withholding taxes on dividends and certain other U.S. source investment income). However, because definitive identification of activities which constitute being engaged in a trade or business in the U.S. is not provided by the Internal Revenue Code of 1986, as amended (the “Code”), or regulations or court decisions, there can be no assurance that the U.S. Internal Revenue Service (“IRS”) will not contend successfully that Arch Capital or its non-U.S. subsidiaries are or have been engaged in a trade or business in the U.S. A foreign corporation deemed to be so engaged would be subject to U.S. federal income tax, as well as the branch profits tax, on its income, which is treated as effectively connected with the conduct of that trade or business unless the corporation is entitled to relief under the permanent establishment provisions of a tax treaty. Such income tax, if imposed, would be based on effectively connected income computed in a manner generally analogous to that applied to the income of a domestic corporation, except that deductions and credits generally are not permitted unless the foreign corporation has timely filed a U.S. federal income tax return in accordance with applicable regulations. Penalties may be assessed for failure to file tax returns. The 30% branch


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profits tax is imposed on net income after subtracting the regular corporate tax and making certain other adjustments.
Under the income tax treaty between Bermuda and the U.S. (the “Treaty”), Arch Capital's Bermuda insurance subsidiaries will be subject to U.S. income tax on any insurance premium income found to be effectively connected with a U.S. trade or business only if that trade or business is conducted through a permanent establishment in the U.S. No regulations interpreting the Treaty have been issued. While there can be no assurances, Arch Capital does not believe that any of its Bermuda insurance subsidiaries has a permanent establishment in the U.S. Such subsidiaries would not be entitled to the benefits of the Treaty if (i) 50% or less of Arch Capital's shares were beneficially owned, directly or indirectly, by Bermuda residents or U.S. citizens or residents, or (ii) any such subsidiary's income were used in substantial part to make disproportionate distributions
to, or to meet certain liabilities to, persons who are not Bermuda residents or U.S. citizens or residents. While there can be no assurances, Arch Capital believes that its Bermuda insurance subsidiaries are eligible for Treaty benefits.
The Treaty clearly applies to premium income, but may be construed as not protecting investment income. If Arch Capital’s Bermuda insurance subsidiaries were considered to be engaged in a U.S. trade or business and were entitled to the benefits of the Treaty in general, but the Treaty were not found to protect investment income, a portion of such subsidiaries’ investment income could be subject to U.S. federal income tax.
Non-U.S. insurance companies carrying on an insurance business within the U.S. have a certain minimum amount of effectively connected net investment income, determined in accordance with a formula that depends, in part, on the amount of U.S. risk insured or reinsured by such companies. If any of Arch Capital's non-U.S. insurance subsidiaries is considered to be engaged in the conduct of an insurance business in the U.S., a significant portion of such company's investment income could be subject to U.S. federal income tax.
Non-U.S. corporations not engaged in a trade or business in the U.S. are nonetheless subject to U.S. income tax on certain “fixed or determinable annual or periodic gains, profits and income” derived from sources within the U.S. as enumerated in Section 881(a) of the Code (such as dividends and certain interest on investments), subject to exemption under the Code or reduction by applicable treaties.
The U.S. also imposes an excise tax on insurance and reinsurance premiums paid to non-U.S. insurers or reinsurers with respect to risks located in the U.S. The rates of tax, unless reduced by an applicable U.S. tax treaty, are 4% for non-life insurance premiums and 1% for life insurance and all reinsurance premiums.
The Tax Cuts and Jobs Act of 2017 (the “Tax Cuts Act”) was signed into law by the President of the United States in 2017. For taxable years beginning after 2017, the Tax Cuts Act imposes a 10% minimum base erosion and anti-abuse tax (reduced to 5% for the 2018 taxable year and increased(increased to 12.5% for the 2026 taxable year and the subsequent taxable years) on the “modified taxable income” of a U.S. corporation (or a non-U.S. corporation engaged in a U.S. trade or business) over such corporation’s regular U.S. federal income tax, reduced by certain tax credits. The “modified taxable income” of a corporation is determined without deduction for certain payments by such corporation to its non-U.S. affiliates (including reinsurance premiums). Final regulations interpreting the base erosion and anti-abuse tax were issued in December 2019.
United Kingdom. Our U.K. subsidiaries are companies incorporated and have their central management and control in the U.K., and are therefore resident in the U.K. for corporation


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tax purposes. As a result, they will be subject to U.K. corporation tax on their respective profits. The U.K. branches of Arch Re Europe and Arch Underwriters EuropeInsurance (EU) will be subject to U.K. corporation tax on the profits (both income profits and chargeable gains) attributable to each branch. The main rate of U.K. corporation tax for the financial year starting April 1, 2018 is 19% on profits. It has been announced that the U.K. corporation tax rate will remain at 19% on profits for the financial year starting April 1, 2019, and will reduce to 17% on profits for the financial year starting April 1, 2020.
Canada. Arch Insurance Canada, a Canadian federal insurance company, commenced underwriting in 2013. Arch Re U.S., through a branch, commenced underwriting reinsurance in Canada in January 2015. Arch Insurance Canada is taxed on its worldwide income. Arch Re U.S. is taxed on its net business income earned in Canada. The general federal corporate income tax rate in Canada is currently 15%. Provincial and territorial corporate income tax rates are added to the general federal corporate income tax rate and generally vary between 11%10% and 16%.
Ireland. Each of Arch Re Europe, Arch MI EuropeInsurance (EU) and Arch Underwriters Europe is incorporated and resident in Ireland for corporation tax purposes and will be subject to Irish corporate tax on its worldwide profits, including the profits of the branches of Arch Re Europe and Arch Underwriters Europe. Any creditable foreign tax payable will be creditable against Arch Re Europe’s Irish corporate tax liability on the results of Arch Re Europe’s branches with the same principle applied to Arch Underwriters Europe’s branches. The current rate of Irish corporation tax applicable to such trading profits is 12.5%.
Switzerland. Arch Re Europe Swiss Branch and Arch Underwriters Europe Swiss Branch are subject to Swiss corporation tax on the profit which is allocated to the branch. The effective tax rate is approximately 21.15% for Swiss federal, cantonal and communal corporation taxes on the profit. The effective tax rate of the annual cantonal and communal capital taxes on the equity which is allocated to Arch Re Europe


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Swiss Branch and Arch Underwriters Europe Swiss Branch is approximately 0.17%.
Denmark. Arch Re Denmark, established as a subsidiary of Arch Re Bermuda, is subject to Danish corporation taxes on its profits at a rate of 22% for 2016 and onwards.
Hong Kong. Arch MI Asia is subject to Hong Kong corporate tax on its assessable profits at a rate of 16.5%. Assessable profits are the net profits for the basis period, arising in or derived from Hong Kong.
Australia. Arch LMI, an Australian incorporated and tax resident company, is subject to Australian corporate tax on its worldwide profits. The current rate of Australian corporation tax applicable to such profits is 30%.


Taxation of Shareholders
Bermuda. Currently, there is no Bermuda withholding tax on dividends paid by us.
United States—General. The following summary sets forth certain U.S. federal income tax considerations related to the purchase, ownership and disposition of our common shares and our non-cumulative preferred shares (“preferred shares”). Unless otherwise stated, this summary deals only with shareholders (“U.S. holders”) that are U.S. Persons (as defined below) who hold their common shares and preferred shares as capital assets and as beneficial owners. The following discussion is only a general summary of the U.S. federal income tax matters described herein and does not purport to address all of the U.S. federal income tax consequences that may be relevant to a particular shareholder in light of such shareholder’s specific circumstances. In addition, the following summary does not describe the U.S. federal income tax consequences that may be relevant to certain types of shareholders, such as banks, insurance companies, regulated investment companies, real estate investment trusts, financial asset securitization investment trusts, dealers in securities or traders that adopt a mark-to-market method of tax accounting, tax exempt entities, expatriates, U.S. holders that hold our common shares or preferred shares through a non-U.S. broker or other non-U.S. intermediary, persons who hold the common shares or preferred shares as part of a hedging or conversion transaction or as part of a straddle, who may be subject to special rules or treatment under the Code or persons required for U.S. federal income tax purposed to recognize income no later than such income is reported on such persons’ applicable financial statements. This discussion is based upon the Code, the Treasury regulations promulgated there under and any relevant administrative rulings or pronouncements or judicial decisions, all as in effect on the date of this annual report and as currently interpreted, and does not take into account possible changes in such tax laws or interpretations thereof, which may apply retroactively. This discussion does not include any description of the tax laws of
any state or local governments within the U.S., or of any foreign government, that may be applicable to our common shares or preferred shares or the shareholders. Persons considering making an investment in the common shares or preferred shares should consult their own tax advisors concerning the application of the U.S. federal tax laws to their particular situations as well as any tax consequences arising under the laws of any state, local or foreign taxing jurisdiction prior to making such investment.
If an entity that is treated as a partnership holds our common shares or preferred shares, the tax treatment of a partner will generally depend upon the status of the partner and the activities of the partnership. If you are a partner of a partnership holding our common shares or preferred shares, you should consult your tax advisor.


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For purposes of this discussion, the term “U.S. Person” means:
an individual who is a citizen or resident of the U.S.;
a corporation or entity treated as a corporation created or organized under the laws of the U.S., any state thereof, or the District of Columbia;
an estate the income of which is subject to U.S. federal income taxation regardless of its source;
a trust if either (i) a court within the U.S. is able to exercise primary supervision over the administration of such trust and one or more U.S. persons have the authority to control all substantial decisions of such trust or (ii) the trust has a valid election in effect to be treated as a U.S. person for U.S. federal income tax purposes; or
any other person or entity that is treated for U.S. federal income tax purposes as if it were one of the foregoing.
United States—Taxation of Dividends. The preferred shares should be properly classified as equity rather than debt for U.S. federal income tax purposes. Subject to the discussions below relating to the potential application of the controlled foreign corporation (“CFC”), “related person insurance income” (“RPII”) and passive foreign investment companies (“PFIC”) rules, as defined below, cash distributions, if any, made with respect to our common shares or preferred shares will constitute dividends for U.S. federal income tax purposes to the extent paid out of our current or accumulated earnings and profits (as computed using U.S. tax principles). If a U.S. holder of our common shares or our preferred shares is an individual or other non-corporate holder, dividends paid, if any, to that holder that constitute qualified dividend income generally will be taxable at the rate applicable for long-term capital gains (generally up to 20%), provided that such person meets a holding period requirement. Generally in order to meet the holding period requirement, the U.S. Person must hold the common shares for more than 60 days during the 121-day period beginning 60 days before the ex-dividend date and must hold preferred shares for more than 90 days during the 181-day period beginning 90 days before the ex-dividend date.


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Dividends paid, if any, with respect to common shares or preferred shares generally will be qualified dividend income, provided the common shares or preferred shares are readily tradable on an established securities market in the U.S. in the year in which the shareholder receives the dividend (which should be the case for shares that are listed on the NASDAQ Stock Market or the New York Stock Exchange) and Arch Capital is not considered to be a passive foreign investment company in either the year of the distribution or the preceding taxable year. No assurance can be given that the preferred shares will be considered readily tradable on an established securities market in the U.S. See “—Taxation of Our U.S. Shareholders” below.
A U.S. holder that is an individual, estate or a trust that does not fall into a special class of trusts that is exempt from such tax, will be subject to a 3.8% tax on the lesser of (1) the U.S.
holder’s “net investment income” for the relevant taxable year and (2) the excess of the U.S. holder’s modified adjusted gross income for the taxable year over a certain threshold (which in the case of individual will be between $125,000 and $250,000, depending on the individual’s circumstances). A U.S. holder’s net investment income will generally include its dividend income and its net gains from the disposition of our common shares and preferred shares, unless such dividend income or net gains are derived in the ordinary course of the conduct of a trade or business (other than a trade or business that consists of certain passive or trading activities).
Distributions with respect to the common shares and the preferred shares will not be eligible for the dividends received deduction allowed to U.S. corporations under the Code. To the extent distributions on our common shares and preferred shares exceed our earnings and profits, they will be treated first as a return of the U.S. holder's basis in our common shares and our preferred shares to the extent thereof, and then as gain from the sale of a capital asset.
United States—Sale, Exchange or Other Disposition. Subject to the discussions below relating to the potential application of the CFC, RPII and PFIC rules, holders of common shares and preferred shares generally will recognize capital gain or loss for U.S. federal income tax purposes on the sale, exchange or disposition of common shares or preferred shares, as applicable.
United States—Redemption of Preferred Shares. A redemption of the preferred shares will be treated under section 302 of the Code as a dividend if we have sufficient earnings and profits, unless the redemption satisfies one of the tests set forth in section 302(b) of the Code enabling the redemption to be treated as a sale or exchange, subject to the discussion herein relating to the potential application of the CFC, RPII and PFIC rules. Under the relevant Code section 302(b) tests, the redemption should be treated as a sale or exchange only if it (1) is substantially disproportionate, (2) constitutes a complete termination of the holder's stock interest in us or (3) is “not
essentially equivalent to a dividend.” In determining whether any of these tests are met, shares considered to be owned by the holder by reason of certain constructive ownership rules set forth in the Code, as well as shares actually owned, must generally be taken into account. It may be more difficult for a U.S. Person who owns, actually or constructively by operation of the attribution rules, any of our other shares to satisfy any of the above requirements. The determination as to whether any of the alternative tests of section 302(b) of the Code is satisfied with respect to a particular holder of the preference shares depends on the facts and circumstances as of the time the determination is made.
Taxation of Our U.S. Shareholders
Controlled Foreign Corporation Rules. We or any of our non-U.S. subsidiaries will be treated as a CFC with respect to any


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taxable year if at any time during such taxable year, one or more “10% Shareholders” (as defined below) collectively own more than 50% of us or such non-U.S. subsidiary (as applicable) by vote or value (taking into account shares actually owned by such U.S. holder as well as shares attributed to such U.S. holder under the Code or the regulations thereunder). For taxable years beginning on or before December 31, 2017, a 10% Shareholder means any shareholder who was considered to own, actually or constructively, 10% or more of the total combined voting power of our shares or those of our non-U.S. subsidiaries (as applicable). Under the Tax Cuts Act, for taxable years beginning after December 31, 2017, a 10% Shareholder also includes any shareholder who is considered to own, actually or constructively, 10% or more of the value of our shares or those of our non-U.S. subsidiaries (as applicable). As a result, for taxable years beginning after December 31, 2017, the voting cut-back limitation contained in our bye-laws that limits the votes conferred by the Controlled Shares (as defined in our bye-laws) of any U.S. Person to 9.9% of the total voting power of all our shares entitled to vote will not prevent any U.S. holder from being treated as a 10% Shareholder. Due to the repeal of section 958(b)(4) under the Tax Cuts Act, all non-U.S. subsidiaries directly or indirectly owned by Arch Capital are treated as constructively owned by its US subsidiaries, and therefore are treated as CFCs.
Status as a CFC would not cause us or any of our non-U.S. subsidiaries to be subject to U.S. federal income tax. Such status also would have no adverse U.S. federal income tax consequences for any U.S. holder that is not a 10% Shareholder with respect to us or any of such non-U.S. subsidiaries (as applicable). If we or any of our non-U.S. subsidiaries are or were a CFC with respect to any taxable year, a U.S. holder that is considered a 10% U.S. Shareholder would be subject to current U.S. federal income taxation (at ordinary income tax rates) to the extent of all or a portion of the undistributed earnings and profits of Arch Capital and our subsidiaries attributable to “subpart F income” (including certain insurance premium income and investment income) or global intangible low-taxed income and may be taxable at ordinary income tax rates on any gain recognized on a sale or other disposition (including by way of repurchase or liquidation) of our common shares or preferred shares to the extent of the current and accumulated earnings and profits attributable to such common shares or preferred


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shares. For taxable years beginning after December 31, 2017, a helpful limitation, which provides that a U.S. shareholder would not be subject to the current inclusion rules of Subpart F for a taxable year unless the non-U.S. corporation was a CFC for an uninterrupted period of 30 days or more during such taxable year, will no longer apply.
Related Person Insurance Income Rules. Generally, we do not expect the gross RPII of any of our non-U.S. subsidiaries to equal or exceed 20% of its gross insurance income in any taxable year for the foreseeable future (the “RPII 20% gross income exception”). Consequently, we do not expect any U.S.
person owning common shares or preferred shares to be required to include in gross income for U.S. federal income tax purposes RPII income, but there can be no assurance that this will be the case.
Section 953(c)(7) of the Code generally provides that Section 1248 of the Code (which generally would require a U.S. holder to treat certain gains attributable to the sale, exchange or disposition of common shares or preferred shares as a dividend) will apply to the sale or exchange by a U.S. shareholder of shares in a foreign corporation that is characterized as a CFC under the RPII rules if the foreign corporation would be taxed as an insurance company if it were a domestic corporation, regardless of whether the U.S. shareholder is a 10% U.S. Shareholder or whether the corporation qualifies for the RPII 20% gross income exception. Although existing U.S. Treasury Department (“Treasury”) regulations do not address the question, proposed Treasury regulations issued in April 1991 create some ambiguity as to whether Section 1248 and the requirement to file Form 5471 would apply when the foreign corporation has a foreign insurance subsidiary that is a CFC for RPII purposes and that would be taxed as an insurance company if it were a domestic corporation. We believe that Section 1248 and the requirement to file Form 5471 will not apply to a less than 10% U.S. Shareholder because Arch Capital is not directly engaged in the insurance business. There can be no assurance, however, that the IRS will interpret the proposed regulations in this manner or that the Treasury will not take the position that Section 1248 and the requirement to file Form 5471 will apply to dispositions of our common shares or our preferred shares.
If the IRS or Treasury were to make Section 1248 and the Form 5471 filing requirement applicable to the sale of our shares, we would notify shareholders that Section 1248 of the Code and the requirement to file Form 5471 will apply to dispositions of our shares. Thereafter, we would send a notice after the end of each calendar year to all persons who were shareholders during the year notifying them that Section 1248 and the requirement to file Form 5471 apply to dispositions of our shares by U.S. holders. We would attach to this notice a copy of Form 5471 completed with all our information and instructions for completing the shareholder information.
Tax-Exempt Shareholders. Tax-exempt entities may be required to treat certain Subpart F insurance income, including RPII, that is includible in income by the tax-exempt entity as unrelated business taxable income. Prospective investors that are tax exempt entities are urged to consult their own tax advisors as to the potential impact of the unrelated business taxable income provisions of the Code.
Passive Foreign Investment Companies. Sections 1291 through 1298 of the Code contain special rules applicable with respect to foreign corporations that are PFICs. In general, a foreign corporation will be a PFIC if 75% or more of its income constitutes “passive income” or 50% or more of its assets


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produce passive income. If we were to be characterized as a PFIC, U.S. holders would be subject to a penalty tax at the time of their sale of (or receipt of an “excess distribution” with respect to) their common shares or preferred shares. In general, a shareholder receives an “excess distribution” if the amount of the distribution is more than 125% of the average distribution with respect to the shares during the three preceding taxable years (or shorter period during which the taxpayer held the stock). In general, the penalty tax is equivalent to an interest charge on taxes that are deemed due during the period the shareholder owned the shares, computed by assuming that the excess distribution or gain (in the case of a sale) with respect to the shares was taxable in equal portions throughout the holder’s period of ownership. The interest charge is equal to the applicable rate imposed on underpayments of U.S. federal income tax for such period. A U.S. shareholder may avoid some of the adverse tax consequences of owning shares in a PFIC by making a qualified electing fund (“QEF”) election. A QEF election is revocable only with the consent of the IRS and has the following consequences to a shareholder:
For any year in which Arch Capital is not a PFIC, no income tax consequences would result.
For any year in which Arch Capital is a PFIC, the shareholder would include in its taxable income a proportionate share of the net ordinary income and net capital gains of Arch Capital and certain of its non-U.S. subsidiaries.
For taxable years beginning on or before December 31, 2017, the determination of whether the active insurance company exception applies to an insurance company was made on a case-by-case basis and the analysis was inherently subjective. Under the Tax Cuts Act, for taxable years beginning after December 31, 2017, the active insurance company exception applies only if (i) the company would be taxed as an insurance company were it a U.S. corporation and (ii) either (A) loss and loss adjustment expense and certain reserves constitute more than 25% of the company’s gross assets for the relevant year or (B) loss and loss adjustment expenses and certain reserves constitute more than 10% of the company’s gross assets for the relevant year and, based on the applicable facts and circumstances, the company is predominantly engaged in an


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insurance business and the failure of the company to satisfy the preceding 25% test is due solely to run-off related or other specified circumstances involving the insurance business. The PFIC statutory provisions contain a look-through rule that states that, for purposes of determining whether a foreign corporation is a PFIC, such foreign corporation shall be treated as if it “received directly its proportionate share of the income” and as if it “held its proportionate share of the assets” of any other corporation in which it owns at least 25% of the stock. We believe that we were not a PFIC for any taxable year beginning on or before December 31, 2017 and we are not expecting to become a PFIC for any taxable year beginning after December 31, 2017 and we will use reasonable best efforts to cause us and
each of our majority owned non-U.S. insurance subsidiaries not to constitute a PFIC.
In April 2015,July 2019, the IRS issued proposed regulations in an attempt to define the foreign insurance company exception to the PFIC rules (the “proposed PFIC insurance regulations”). The proposed PFIC insurance regulations are likely to be revised in light of the modified active insurance company exception contained in the Tax Cuts Act (as described above).
No regulations interpreting the substantive PFIC provisions have yet been finalized. It is possible that the regulations interpreting the PFIC provisions will be issued in the future and contain rules different from those in the proposed PFIC insurance regulations. Each U.S. holder should consult its own tax advisor as to the effects of these rules.
United States Taxation of Non-U.S. Shareholders
Taxation of Dividends. Cash distributions, if any, made with respect to common shares or preferred shares held by shareholders who are not U.S. Persons (“Non-U.S. holders”) generally will not be subject to U.S. withholding tax.
Sale, Exchange or Other Disposition. Non-U.S. holders of common shares or preferred shares generally will not be subject to U.S. federal income tax with respect to gain realized upon the sale, exchange or other disposition of such shares unless such gain is effectively connected with a U.S. trade or business of the Non-U.S. holder in the U.S. or such person is present in the U.S. for 183 days or more in the taxable year the gain is realized and certain other requirements are satisfied.
Information Reporting and Backup Withholding. Non-U.S. holders of common shares or preferred shares will not be subject to U.S. information reporting or backup withholding with respect to dispositions of common shares effected through a non-U.S. office of a broker, unless the broker has certain connections to the U.S. or is a U.S. person. No U.S. backup withholding will apply to payments of dividends, if any, on our common shares or our preferred shares.
FATCA Withholding. Sections 1471 through 1474 to the Code, known as the Foreign Account Tax Compliance Act (“FATCA”), impose a withholding tax of 30% on U.S.-source interest, dividends and certain other types of income, which is received by a foreign financial institution (“FFI”), unless such FFI enters into an agreement with the IRS to obtain certain information as to the identity of the direct and indirect owners of accounts in such institution. In addition, a 30% withholding tax may be imposed on the above payments to certain non-financial foreign entities which do not (i) certify to each respective withholding agent that they have no “substantial U.S. owners” (i.e., a U.S. 10% direct or indirect shareholder), or (ii) provide such withholding agent with the certain information as to the identity of such substantial U.S. owners. The U.S. has entered into intergovernmental agreements to implement FATCA (“IGAs”) with a number of jurisdictions. Bermuda has signed an IGA with the U.S. Different rules than those described above may apply under such an IGA.


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Although dividends with respect to our common shares or preferred shares will generally be treated as foreign source for U.S. federal withholding tax purposes, it is unclear whether, for FATCA purposes, some or all of our dividends may be recharacterized as U.S. source dividends. Treasury regulations addressing this topic have not yet been issued.
Prospective investors are urged to consult their own tax advisors as to the filing and information requirements that may be imposed on them in respect of their ownership of our common share or preferred shares.
Other Tax Laws. Shareholders should consult their own tax advisors with respect to the applicability to them of the tax laws of other jurisdictions.


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ITEM 1A. RISK FACTORS
ITEM 1A.
RISK FACTORS
Set forth below are risk factors relating to our business. These risks and uncertainties are not the only ones we face. There may be additional risks that we currently consider not to be material or of which we are not currently aware, and any of these risks could cause our actual results to differ materially from historical or anticipated results. You should carefully consider these risks along with the other information provided in this report, including our “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our accompanying consolidated financial statements, as well as the information under the heading “Cautionary Note Regarding Forward-Looking Statements” before investing in any of our securities. We may amend, supplement or add to the risk factors described below from time to time in future reports filed with the SEC.
Risks Relating to Our Industry
We operate in a highly competitive environment, and we may not be able to compete successfully in our industry.
The insurance and reinsurance industry is highly competitive. We compete on an international and regional basis with major U.S. and non-U.S. insurers and reinsurers, many of which have greater financial, marketing and management resources than we do. We also compete with new companies that continue to be formed to enterSee “Competition” in Item 1 for details on our competitors in each of the insurance and reinsurance markets, as well as with other capital market participants that create alternative products intended to compete with reinsurance products. Certain new companies entering the insurance and reinsurance markets are pursuing more aggressive investment strategies than domajor segments we and other traditional reinsurers, which may result in downward pressure on premium rates. In our U.S. mortgage business, we compete with other private mortgage insurers, with the Federal Housing Administration, and, increasingly, with well capitalized multiline reinsurers and capital markets alternatives to private mortgage insurance. Competition within the private mortgage insurance industry could result in the loss of customers, lower premiums, riskier credit guidelines and other changes that could lower our revenues or increase our expenses.
In addition, thereoperate in. There has been significant consolidation in the insurance and reinsurance sector in recent years and we may experience increased competition as a result of that consolidation, with consolidated entities having enhanced market power. These consolidated entities may use their enhanced market power and broader capital base to negotiate price reductions for products and services that compete with ours, and we may experience rate declines and possibly write less business. Any failure by us to effectively compete could
adversely affect our financial condition and results of operations.
The insurance and reinsurance industry is highly cyclical, and we expect to continue to experience periods characterized by excess underwriting capacity and unfavorable premium rates.
Historically, insurers and reinsurers have experienced significant fluctuations in operating results due to competition, frequency of occurrence or severity of catastrophic events, levels of capacity, general economic conditions, changes in equity, debt and other investment markets, changes in legislation, case law and prevailing concepts of liability and other factors. In particular, demand for reinsurance is influenced significantly by the underwriting results of primary insurers and prevailing general economic conditions. The supply of insurance and reinsurance is related to prevailing prices and levels of surplus capacity that, in turn, may fluctuate in response to changes in rates of return being realized in the insurance and reinsurance industry on both underwriting and investment sides. As a result, the insurance and reinsurance business historically has been a cyclical industry characterized by periods of intense price competition due to excessive underwriting capacity as well as periods when shortages of capacity permitted favorable premium levels and changes in terms and conditions. The supply of insurance and reinsurance has increased over the past several years and may increase further, either as a result of capital provided by new entrants or by the commitment of additional capital by existing insurers or reinsurers. Continued increases in the supply of insurance and reinsurance may have consequences for us, including fewer contracts written, lower premium rates, increased expenses for customer acquisition and retention, and less favorable policy terms and conditions.


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Claims for catastrophic events could cause large losses and substantial volatility in our results of operations and could have a material adverse effect on our financial position and results of operations.
We have large aggregate exposures to natural and man-made catastrophic events. Catastrophes can be caused by various events, including hurricanes, floods, tsunamis, windstorms, earthquakes, hailstorms, tornadoes, explosions, severe winter weather, fires, droughts and other natural disasters. The frequency and severity of natural catastrophe activity, including hurricanes, tsunamis, tornadoes, floods and droughts, has also been greater in recent years. Catastrophes can also cause losses in non-property business such as workers’ compensation or general liability. In addition to the nature of the property business, we believe that economic and geographic trends affecting insured property, including inflation, property value appreciation and geographic concentration tend to generally increase the size of losses from catastrophic events over time. Actual losses from future


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catastrophic events may vary materially from estimates due to the inherent uncertainties in making such determinations resulting from several factors, including the potential inaccuracies and inadequacies in the data provided by clients, brokers and ceding companies, the modeling techniques and the application of such techniques, the contingent nature of business interruption exposures, the effects of any resultant demand surge on claims activity and attendant coverage issues.
In addition, over the past several years, changing weather patterns and climatic conditions, such as global warming, have added to the unpredictability and frequency of natural disasters in certain parts of the world and created additional uncertainty as to future trends and exposures. Although the loss experience of catastrophe insurers and reinsurers has historically been characterized as low frequency, there is a growing consensus today that climate change increases the frequency and severity of extreme weather events and, in recent years, the frequency of major catastrophes appears to have increased. increased, and may continue to increase in the future.
Claims for catastrophic events, or an unusual frequency of smaller losses in a particular period, could expose us to large losses, cause substantial volatility in our results of operations and could have a material adverse effect on our ability to write new business.business if we are not able to adequately assess and reserve for the increased frequency and severity of catastrophes resulting from these environmental factors. Additionally, catastrophic events could result in increased credit exposure to reinsurers and other counterparties we transact business with, declines in the value of investments we hold and significant disruptions to our physical infrastructure, systems and operations.
Additionally, we cannot predict how legal, regulatory and/or social responses to concerns around global climate change may impact our business. Although weWe attempt to manage our exposure to such events through the use of underwriting controls, risk models, and the purchase of third-party reinsurance. Underwriting controls can include more restrictive underwriting criteria such as higher premiums and deductibles, or losses retained, and more specifically excluded policy risks. Our deductible in connection with a catastrophic event is determined by market capacity, pricing conditions and surplus preservation. There can be no assurance that our reinsurance coverage and other measures taken will be sufficient to mitigate losses resulting from one or more catastrophic events are inherently unpredictable and the actual nature of such events when they occur could be more frequent or severe than contemplated in our pricing and risk management expectations.events. As a result, the occurrence of one or more catastrophic events and the continuation and worsening of recent trends could have an adverse effect on our results of operations and financial condition.


Environmental, Social and Governance (ESG) and sustainability have become major topics that encompass a wide range of issues, such as climate change and other environmental risks. It is something that has come to the fore at a European level. For example, the European Commission has published non-binding guidelines on non-financial reporting (to include climate-change related information). It may well be that mandatory, rather than voluntary, disclosure requirements will be introduced in due course which could have an impact on the operation model of Arch Capital.

We could face unanticipated losses from war, terrorism, cyber-attacks, pandemics and political instability, and these or other unanticipated losses could have a material adverse effect on our financial condition and results of operations.
We have substantial exposure to unexpected, large losses resulting from future man-made catastrophic events, such as acts of war, acts of terrorism and political instability. These risks are inherently unpredictable. It is difficult to predict the timing of such events with statistical certainty or estimate the amount of loss any given occurrence will generate. In certain instances, we specifically insure and reinsure risks resulting from acts of terrorism. We may also insure against risk related to cybersecurity and cyber-attacks. In addition, our exposure to cyber-attacks includes exposure to ‘silent cyber’ risks, meaning risks and potential losses associated with policies where cyber risk is not specifically included nor excluded in the policies. Even in cases where we attempt to exclude losses from terrorism, cybersecurity and certain other similar risks from
some coverages written by us, we may not be successful in doing so. Moreover, irrespective of the clarity and inclusiveness of policy language, there can be no assurance that a court or arbitration panel will not limit enforceability of policy language or otherwise issue a ruling adverse to us. Accordingly, while we believe our reinsurance programs, together with the coverage provided under the Terrorism Risk Insurance Act of


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2002, as amended under the Terrorism Risk Insurance Extension Act of 2005 and the Terrorism Risk Insurance Program Reauthorization Act of 2007, and amended and extended again by TRIPRA, are sufficient to reasonably limit our net losses relating to potential future terrorist attacks, we can offer no assurance that our available capital will be adequate to cover losses when they materialize. To the extent that an act of terrorism is certified by the Secretary of the Treasury and aggregate industry insured losses resulting from the act of terrorism exceeds the prescribed program trigger, our U.S. insurance operations may be covered under TRIPRATRIP for up to 81% for 2019 and 80% for 2020, in each case subject to a mandatory deductible of 20% of our prior year’s direct earned premium for covered property and liability coverages. The program trigger for calendar year 20192020 is $180 million and $200 million in 2020.million. If an act (or acts) of terrorism result in covered losses exceeding the $100 billion annual limit, insurers with losses exceeding their deductibles will not be responsible for additional losses. It is not possible to completely eliminate our exposure to unforecasted or unpredictable events, and to the extent that losses from such risks occur, our financial condition and results of operations could be materially adversely affected.


Our operations are also exposed to the risk of catastrophic mortality, such as a pandemic or other event that causes a large number of deaths. For example, on January 30, 2020, the World Health Organization declared that the recent coronavirus disease 2019 (“COVID-19”) outbreak which emanated from China was a global health emergency. This has resulted in increased travel restrictions and extended shutdown of certain businesses not just in China but in other parts of Asia as well. With a recent rise in the number of cases of the coronovirus outside of China, travel restrictions and other disruption to businesses globally have also increased. While the effects of the coronavirus will be difficult to assess or predict, an outbreak could have a significant impact on our business. A significant pandemic could have a major impact on the global economy or the economies of particular countries or regions, including travel, trade, tourism, the health system, food supply, consumption, overall economic output, as well as on the financial markets. In addition, a pandemic that affected our employees or the employees of our distributors or of other companies with which we do business could disrupt our business operations. The effectiveness of external parties, including governmental and non-governmental organizations, in combating the spread and severity of such a pandemic could have a material impact on the losses we experience. These events could cause a material adverse effect on our results of operations in any period and, depending on their severity, could also materially and adversely affect our financial condition.

Political, regulatory, legislative and industry initiatives could adversely affect our business.
Governmental authorities in the U.S. and worldwide have become increasingly interested in potential risks posed by the insurance industry as a whole, and to commercial and financial systems in general and there may be increased regulatory intervention in our industry in the future. For example, in the
U.S., the federal government (including federal consumer protection authorities) has increased its scrutiny of the insurance regulatory framework in recent years, and various state legislators are considering or have enacted laws that will alter and likely increase state regulation of insurance and reinsurance companies and holding companies. The U.S. mortgage insurance industry has also been subject to increased federal and state regulatory scrutiny (including by state insurance regulatory authorities), which could generate new regulations, regulatory actions or investigations.
In the EU, Solvency II imposed economic risk-based solvency requirements across all EU Member States covering quantitative capital requirements, qualitative regulatory reviews and market discipline. In addition, Solvency II imposes significant requirements for our EU-based regulated companies


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which require substantial documentation and implementation effort. Following the U.K.’s departure from the EU, it is uncertain whether the U.K. will maintain equivalence with Solvency II beyond the end of the Transition Period.
The BMA has also implemented and imposed additional requirements on the commercial insurance companies it regulates, driven, in large part, by Solvency II. The European Commission has adopted a decision concluding that Bermuda meets the full equivalence criteria under Solvency II.
While we cannot predict the exact nature, timing or scope of any possible governmental initiatives, such proposals could adversely affect our business by, among other things: providing reinsurance capacity in markets and to consumers that we target; requiring our further participation in industry pools and guaranty associations; expanding the scope of coverage under existing policies (e.g., following large disasters); further regulating the terms of insurance or reinsurance contracts; or disproportionately benefiting the companies of one country over those of another.
In addition, increased scrutiny by insurance regulators of investments in or acquisitions of insurers or insurance holding companies by private equity firms or hedge funds may result in imposition of additional regulatory requirements and restrictions. We have in the past partnered with private equity firms in making investments and may do so in the future. This increased scrutiny may make it difficult to complete investments with private equity or hedge funds should we seek to do so.
Underwriting risks and reserving for losses are based on probabilities and related modeling, which are subject to inherent uncertainties.
Our success is dependent upon our ability to assess accurately the risks associated with the businesses that we insure and reinsure. We establish reserves for losses and loss adjustment expenses which represent estimates involving actuarial and statistical projections, at a given point in time, of our


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expectations of the ultimate settlement and administration costs of losses incurred. We utilize actuarial models as well as available historical insurance industry loss ratio experience and loss development patterns to assist in the establishment of loss reserves. Most or all of these factors are not directly quantifiable, particularly on a prospective basis, and the effects of these and unforeseen factors could negatively impact our ability to accurately assess the risks of the policies that we write. Changes in the assumptions used by these models or by management could lead to an increase in our estimate of ultimate losses in the future. In addition, there may be significant reporting lags between the occurrence of the insured event and the time it is actually reported to the insurer and additional lags between the time of reporting and final settlement of claims. Unfavorable development in any of these factors could cause the level of reserves to be inadequate. In addition, the estimation of loss reserves is also more difficult during times of adverse economic and market conditions due
to unexpected changes in behavior of claimants and policyholders, including an increase in fraudulent reporting of exposures and/or losses, reduced maintenance of insured properties or increased frequency of small claims. Changes in the level of inflation also result in an increased level of uncertainty in our estimation of loss reserves. As a result, actual losses and loss adjustment expenses paid will deviate, perhaps substantially, from the reserve estimates reflected in our financial statements.
If our loss reserves are determined to be inadequate, we will be required to increase loss reserves at the time of such determination with a corresponding reduction in our net income in the period in which the deficiency becomes known. It is possible that claims in respect of events that have occurred could exceed our claim reserves and have a material adverse effect on our results of operations, in a particular period, or our financial condition in general. As a compounding factor, although most insurance contracts have policy limits, the nature of property and casualty insurance and reinsurance is such that losses can exceed policy limits for a variety of reasons and could significantly exceed the premiums received on the underlying policies, thereby further adversely affecting our financial condition.
In accordance with mortgage insurance industry practice, we establish loss reserves only for loans in our existing delinquency inventory. Because our mortgage insurance reserving process does not take account of the impact of future losses from loans that are not delinquent, mortgage insurance loss reserves are not intended to be an estimate of total future losses. Our expectation of total future losses under our mortgage insurance policies in force at any period end is not reflected in our financial statements. In addition to establishing loss reserves for delinquent loans, under GAAP, we are required to establish a premium deficiency reserve for our mortgage insurance products if the amount of expected future losses for a particular
product and maintenance costs for such product exceeds expected future premiums, existing reserves and the anticipated investment income. We evaluate whether a premium deficiency exists quarterly. There can be no assurance that premium deficiency reserves will not be required in future periods. If this were to occur, our results of operations and financial condition could be adversely affected.
As of December 31, 2018,2019, our consolidated reserves for unpaid losses and loss adjustment expenses, net of unpaid losses and loss adjustment expenses recoverable, were approximately $9.04$9.81 billion. Such reserves were established in accordance with applicable insurance laws and GAAP. Loss reserves are inherently subject to uncertainty. In establishing the reserves for losses and loss adjustment expenses, we have made various assumptions relating to the pricing of our reinsurance contracts and insurance policies and have also considered available historical industry experience and current industry conditions.


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Any estimates and assumptions made as part of the reserving process could prove to be inaccurate due to several factors, including the fact that relatively limited historical information has been reported to us through December 31, 2018.2019.
The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.
We seek to limit our loss exposure by writing a number of our reinsurance contracts on an excess of loss basis, adhering to maximum limitations on reinsurance written in defined geographical zones, limiting program size for each client and prudent underwriting of each program written. In the case of proportional treaties, we may seek per occurrence limitations or loss ratio caps to limit the impact of losses from any one or series of events. In our insurance operations, we seek to limit our exposure through the purchase of reinsurance. For our U.S. mortgage insurance business, in addition to utilizing reinsurance, we have developed a proprietary risk model that simulates the maximum loss resulting from a severe economic event impacting the housing market. We cannot be certain that any of these loss limitation methods will be effective. We also seek to limit our loss exposure by geographic diversification. Geographic zone limitations involve significant underwriting judgments, including the determination of the area of the zones and the inclusion of a particular policy within a particular zone’s limits. Various provisions of our policies, negotiated to limit our risk, such as limitations or exclusions from coverage or choice of forum, may not be enforceable in the manner we intend, as it is possible that a court or regulatory authority could nullify or void an exclusion or limitation, or legislation could be enacted modifying or barring the use of these exclusions and limitations. Disputes relating to coverage and choice of legal forum may also arise. Underwriting is inherently a matter of judgment, involving important assumptions about matters that are inherently unpredictable and beyond our control, and for which historical experience and probability analysis may not


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provide sufficient guidance. No assurances can be made that these loss limitation methods will be effective and mitigate our loss exposure. One or more catastrophic events or severe economic events could result in claims that substantially exceed our expectations, or the protections set forth in our policies could be voided, which, in either case, could have a material adverse effect on our financial condition or our results of operations, possibly to the extent of eliminating our shareholders’ equity. In addition, factors such as global climate change limit the value of historical experience and therefore further limit the effectiveness of our loss limitation methods. See “Management’s Discussion and Analysis of Financial Condition and Results of OperationsCatastrophic Events and Severe Economic Events.”Events” in Item 7 for further details. Depending on business opportunities and the mix of business that may comprise our insurance, reinsurance and mortgage insurance portfolio, we may seek to adjust our self-imposed limitations on probable maximum pre-tax loss for catastrophe exposed business and mortgage default exposed business.
Adverse developments in the financial markets could have a material adverse effect on our results of operations, financial position and our businesses, and may also limit our access to capital; our policyholders, reinsurers and retrocessionaires may also be affected by such developments, which could adversely affect their ability to meet their obligations to us.
Adverse developments in the financial markets, such as disruptions, uncertainty or volatility in the capital and credit markets, may result in realized and unrealized capital losses that could have a material adverse effect on our results of operations, financial position and our businesses, and may also limit our access to capital required to operate our business. Depending on market conditions, we could incur additional realized and unrealized losses on our investment portfolio in future periods, which could have a material adverse effect on our results of operations, financial condition and business. Economic conditions could also have a material impact on the frequency and severity of claims and therefore could negatively impact our underwriting returns. In addition, our policyholders, reinsurers and retrocessionaires may be affected by developments in the financial markets, which could adversely affect their ability to meet their obligations to us. The volatility in the financial markets could continue to significantly affect our investment returns, reported results and shareholders’ equity.
The United Kingdom’s referendum vote in favor of leavingU.K.’s Withdrawal from the EU could adversely affect us.
In a referendum in June 2016, a majority of voting U.K. citizens voted in favor of Brexit, whereby the U.K. will leave the EU. The U.K. government invoked Article 50 of the Treaty on European Union (“Article 50”) in 2017 and will have to withdraw2017. On January 31, 2020, the U.K. withdrew from the EU. Terms of this withdrawal are set forth in the Withdrawal Agreement, which was approved by the U.K. Parliament and the EU on March 29, 2019, unless anParliament. The Withdrawal Agreement allows for a Transition Period whereby
"passporting" rights will continue to exist until the end of the Transition Period, which is December 31, 2020 (unless a single extension of one to two years to this deadlineTransition Period is agreed between the U.KU.K. government and the EU, by June 30, 2020, although the U.K. government has indicated that no extension will be sought). During the Transition Period, the U.K. government and the EU will endeavor to negotiate a trade deal to govern the future relationship between the U.K. and the EU. ThereIf a trade deal is not agreed by the end of the Transition Period (and no extension to the Transition Period is agreed between the U.K. and the EU), the U.K. will leave the EU on December 31, 2020 on World Trade Organization ("WTO") terms, meaning that most U.K. goods will be subject to tariffs until a free trade deal is brought in and "passporting" rights will cease to apply.
Accordingly, there remains considerable uncertainty as to exactly when Brexit will take effect; the extent of any transitional period allowing a continuation of passporting;negotiations between the U.K. and the EU during the Transition Period and the ultimate structure of the U.K’s future relationship with the EU. There is no certainty that the U.K.’s solvency and prudential regime will be deemed “equivalent” to Solvency II or that the U.K. will not impose more stringent requirements on companies conducting insurance business in the U.K.
During this periodTransition Period and beyond, the impact of the U.K.’s withdrawal on the U.K. and European economies and the broader global economy could be significant, resulting in negative consequences, such as increased volatility and illiquidity, and potentially lower economic growth in various markets in the U.K., Europe and globally and could continue to contribute to instability in global financial and foreign exchange markets. Brexit could also have the effect of disrupting the free movement of goods, services and people between the U.K. and the EU. We anticipate that Brexit may disrupt our U.K. domiciled entities, including our Lloyd’s syndicate,syndicates, and their ability to “passport” within the EU. Similarly, Brexit may disrupt the ability of our EU domiciled entities to access the U.K. markets although the U.K is attempting to mitigate this by introducing a temporary permissions regime which in the event of there being no transitional period, will allowallows firms that


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wish to continue carrying out regulated activities in the U.K. in the longer term to operate in the U.K for a limited period after withdrawal, while they seek authorization from the U.K. regulators. The full effects of Brexit are uncertain and will depend on any agreements the U.K. may make to retain access toand EU markets.enter into regarding their future relationship.
The negative impact of these events on economic conditions and global markets could have an adverse effect on our business, financial condition and liquidity. For example, this crisis may cause the value of the European currencies, including the Euro and the British Pound Sterling, to further depreciate against the U.S. Dollar, which in turn could materially adversely impact assets denominated in such currencies held in our investment portfolio or results of our European book of business. In


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addition, the applicable legal framework and the terms of our Euro-denominated insurance policies and reinsurance agreements generally do not address withdrawal by a member state from the Eurozone or a break-up of the EU, which could create uncertainty in our payment obligations and rights under those policies and agreements in the event that such a withdrawal or break-up does occur.
Additionally, a contagion effect of a possible default of one or more EU Member States and/or their withdrawal from the Eurozone, or the failure of financial institutions, on the global economy, including other EU Member States and our counterparties located in those countries, or a break-up of the EU could have a material adverse effect on our business, financial condition, results of operations and liquidity. As a result of Brexit, other European countries may seek to conduct referenda with respect to their continuing membership with the EU. Given these possibilities and others we may not anticipate, as well as the lack of comparable precedent, the full extent to which our business, results of operations and financial condition could be adversely affected by Brexit is uncertain.
The risk associated with underwriting treaty reinsurance business could adversely affect us.
Like other reinsurers, our reinsurance group does not separately evaluate each of the individual risks assumed under reinsurance treaties. Therefore, we are largely dependent on the original underwriting decisions made by ceding companies. We are subject to the risk that the ceding companies may not have adequately evaluated the risks to be reinsured and that the premiums ceded may not adequately compensate us for the risks we assume.
The availability of reinsurance, retrocessional coverage and capital market transactions to limit our exposure to risks may be limited, and counterparty credit and other risks associated with our reinsurance arrangements may result in losses which could adversely affect our financial condition and results of operations.
For the purposes of managing risk, we use reinsurance, retrocessional coverage and capital markets transactions. In the normal course of business, our insurance subsidiaries cede a portion of their premiums through pro rata, excess of loss and facultative reinsurance agreements. Our reinsurance subsidiaries purchase a limited amount of retrocessional coverage as part of their aggregate risk management program. In addition, our reinsurance subsidiaries participate in “common account” retrocessional arrangements for certain pro rata treaties. Such arrangements reduce the effect of individual or aggregate losses to all companies participating on such treaties, including the reinsurers, such as our reinsurance subsidiaries, and the ceding company. Economic conditions could also have a material impact on our ability to manage our
risk aggregations through reinsurance or capital markets transactions. The availability and cost of reinsurance and retrocessional protection is subject to market conditions, which are beyond our control. As a result of such market conditions and other factors, we may not be able to successfully mitigate risk through reinsurance and retrocessional arrangements.
Further, we are subject to credit risk with respect to our reinsurance and retrocessions because the ceding of risk to reinsurers and retrocessionaires does not relieve us of our liability to the clients or companies we insure or reinsure. We monitor the financial condition of our reinsurers and attempt to place coverages only with carriers we view as substantial and financially sound. Although we have not experienced any material credit losses to date, an inability of our reinsurers or retrocessionaires to meet their obligations to us could have a material adverse effect on our financial condition and results of operations. Our losses for a given event or occurrence may increase if our reinsurers or retrocessionaires dispute or fail to meet their obligations to us or the reinsurance or retrocessional protections purchased by us are exhausted or are otherwise unavailable for any reason. Our failure to establish adequate reinsurance or retrocessional arrangements or the failure of our existing reinsurance or retrocessional arrangements to protect us from overly concentrated risk exposure could adversely affect our financial condition and results of operations.
Our reliance on brokers subjects us to their credit risk.
In accordance with industry practice, we generally pay amounts owed on claims under our insurance and reinsurance contracts to brokers, and these brokers, in turn, pay these amounts to the clients that have purchased insurance or reinsurance from us. In some jurisdictions, if a broker fails to make such payment, we may remain liable to the insured or ceding insurer for the


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deficiency. Likewise, in certain jurisdictions, when the insured or ceding company pays the premiums for these contracts to brokers for payment to us, these premiums are considered to have been paid and the insured or ceding company will no longer be liable to us for those amounts, whether or not we have actually received the premiums from the broker. Consequently, we assume a degree of credit risk associated with our brokers. To date, we have not experienced any losses related to this credit risk.
Emerging claim and coverage issues may adversely affect our business.
As industry practices and legal, judicial, social and other environmental conditions change, unexpected and unintended issues related to claims and coverage may emerge, including new or expanded theories of liability. These or other changes could impose new financial obligations on us by extending coverage beyond our underwriting intent or otherwise require us to make unplanned modifications to the products and services that we provide, or cause the delay or cancellation of products


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and services that we provide. In some instances, these changes may not become apparent until sometime after we have issued insurance or reinsurance contracts that are affected by the changes. As a result, the full extent of liability under our insurance or reinsurance contracts may not be known for many years after a contract is issued. The effects of unforeseen developments or substantial government intervention could adversely impact our ability to achieve our goals.
Changes in current accounting principles and practices and financial reporting requirements may materially affect our reported financial results and our reported financial condition.
Our financial statements are prepared in accordance with GAAP, which is periodically revised by the Financial Accounting Standards Board (“FASB”), and they are subject to the accounting-related rules and interpretations of the SEC. We are required to adopt new and revised accounting standards implemented by the FASB. Unanticipated developments in accounting practices may require us to incur considerable additional expenses to comply with such developments, particularly if we are required to prepare information relating to prior periods for comparative purposes or to apply the new requirements retroactively. The impact of changes in accounting principles, practices and standards, particularly those that apply to insurance companies, cannot be predicted but may affect the calculation of net earnings, shareholders' equity and other relevant financial statement line items. In addition, such changes may cause additional volatility in reported earnings, decrease the understandability of our financial results and affect the comparability of our reported results with the results of others.
Risks Relating to Our Company
Acquisitions, the addition of new lines of insurance or reinsurance business, expansion into new geographic regions and/or entering into joint ventures or partnerships expose us to risks.
We may seek, from time to time, to acquire other companies, acquire selected blocks of business, expand our business lines, expand into new geographic regions and/or enter into joint ventures or partnerships. Such activities expose us to challenges and risks, including: integrating financial and operational reporting systems; establishing satisfactory budgetary and other financial controls; funding increased capital needs, overhead expenses or cash flow shortages that may occur if anticipated sales and revenues are not realized or are delayed, whether by general economic or market conditions or unforeseen internal difficulties; obtaining management personnel required for expanded operations; obtaining necessary regulatory permissions; and establishing adequate reserves for any acquired book of business. In addition, the value of assets acquired may be lower than expected or may diminish due to credit defaults or changes in interest rates; the liabilities
assumed may be greater than expected; and assets and liabilities acquired may be subject to foreign currency exchange rate fluctuation. We may also be subject to financial exposures in the event that the sellers of the entities or business we acquire are unable or unwilling to meet their indemnification, reinsurance and other contractual obligations to us.
Our failure to manage successfully any of the foregoing challenges and risks may adversely impact our results of operations.
The ultimate performance of the Arch MI U.S. mortgage insurance portfolio remains uncertain.
Arch MI U.S. had risk in force of approximately $71.0$73.4 billion, before external reinsurance, as of December 31, 2018,2019, including $4.7$3.9 billion of risk in force originated in 20082009 and prior. The presence of multiple higher-risk characteristics in a loan materially increases the likelihood of a claim on such a loan unless there are other characteristics to mitigate the risk. The mix of business in our insured loan portfolio may affect losses and remain uncertain. 
The frequency and severity of claims we incur will be uncertain and will depend largely on general economic factors outside of our control, including, among others, changes in unemployment, home prices and interest rates in the U.S. Deteriorating economic conditions in the U.S. could adversely affect the performance of our acquired U.S. mortgage insurance portfolio and could adversely affect our results of operations and financial condition.
Generally, we cannot cancel mortgage insurance coverage or adjust renewal premiums during the life of a mortgage insurance


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policy. As a result, higher than anticipated claims generally cannot be offset by premium increases on policies in force or mitigated by our non-renewal or cancellation of insurance coverage. In addition, the premium rate for loans that refinanced in 2019 may be lower than premium rates charges on the original purchase in prior years. The premiums charged on the acquired UGC insured loan portfolio, and the associated investment income, may not be adequate to compensate us for the risks and costs associated with the insurance coverage provided to customers.
A downgrade in our ratings or our inability to obtain a rating for our operating insurance and reinsurance subsidiaries may adversely affect our relationships with clients and brokers and negatively impact sales of our products.
Third-party rating agencies, such as A.M. Best, assess and rate the financial strength of insurers and reinsurers based upon criteria established by the rating agencies, which criteria are subject to change. Ratings are an important factor in establishing the competitive position of insurance and reinsurance companies. Insureds, ceding insurers, brokers and reinsurance intermediaries use these ratings as one measure by which to assess the financial strength and quality of insurers and reinsurers. These ratings are often an important factor in the decision by an insured, ceding insurer, broker or intermediary of whether to place business with a particular insurance or reinsurance provider.
The financial strength ratings of our operating insurance and reinsurance subsidiaries are subject to periodic review as rating agencies evaluate us to confirm that we continue to meet their criteria for ratings assigned to us by them. Such ratings may be revised downward or revoked at the sole discretion of such ratings agencies in response to a variety of factors, including a minimum capital adequacy ratio, management, earnings, capitalization and risk profile. For further information on our financial strength and/or issuer ratings, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources.” We can offer no assurances that our ratings will remain at their current levels or that any of our ratings which under review or watch by ratings agencies will remain unchanged. We believe it is possible that rating agencies may heighten the level of scrutiny they apply when analyzing companies in our industry, may increase the frequency and scope of their reviews, may request additional information from the companies that they rate (including additional information regarding the valuation of investment securities held), and may adjust upward the capital and other requirements employed in their models for maintenance of certain rating levels.
A ratings downgrade or the potential for such a downgrade, or failure to obtain a necessary rating, could adversely affect our relationships with agents, brokers, wholesalers, intermediaries, clients and other distributors of our existing products and services, as well as new sales of our products and services. In addition, under certain of the reinsurance agreements assumed by our reinsurance operations, upon the occurrence of a ratings
downgrade or other specified triggering event with respect to


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our reinsurance operations, such as a reduction in surplus by specified amounts during specified periods, our ceding company clients may be provided with certain rights, including, among other things, the right to terminate the subject reinsurance agreement and/or to require that our reinsurance operations post additional collateral. Any ratings downgrade or failure to obtain a necessary rating could adversely affect our ability to compete in our markets, could cause our premiums and earnings to decrease and could have a material adverse impact on our financial condition and results of operations. In addition, a downgrade in ratings of certain of our operating subsidiaries would in certain cases constitute an event of default under our credit facilities. See “Management’s Discussion and AnalysisFor further information on our financial strength and/or issuer ratings, see “Ratings” in Item 1. For further information on our letter of Financial Condition and Results of Operations—Contractual Obligations and Commercial Commitments—credit facilities, see the Letter of Credit and Revolving Credit Facilities” for a discussionFacilities section of our credit facilities.“Contractual Obligations and Commercial Commitments” in Item 7.
We can offer no assurances that our ratings will remain at their current levels or that any of our ratings which are under review or watch by ratingratings agencies will remain unchanged. We believe it is possible that rating agencies may heighten the level of scrutiny they apply when analyzing companies in our industry, may increase the frequency and scope of their reviews, may request additional information from the companies that they rate (including additional information regarding the valuation of investment securities held), and may adjust upward the capital and other requirements employed in their models for maintenance of certain rating levels.
Our success will depend on our ability to maintain and enhance effective operating procedures and internal controls and our enterprise risk management (“ERM”) program.
Operational risk and losses can result from, among other things, fraud, errors, failure to document transactions properly or to obtain proper internal authorization, failure to comply with regulatory requirements, information technology failures, failure to appropriately transition new hires or external events. We continue to enhance our operating procedures and internal controls (including information technology initiatives and controls over financial reporting) to effectively support our business and our regulatory and reporting requirements. Our management does not expect that our disclosure controls or our internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. As a result of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the company have been detected. These inherent limitations include the realities that judgments in decision
making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons or by collusion of two or more people. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become


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inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. As a result of the inherent limitations in a cost-effective control system, misstatement due to error or fraud may occur and not be detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable, not absolute, assurance that our goals are met. Any ineffectiveness in our controls or procedures could have a material adverse effect on our business.
We operate within an ERM framework designed to assess and monitor our risks. However, there can be no assurance that we can effectively review and monitor all risks or that all of our employees will operate within the ERM framework. There can be no assurance that our ERM framework will result in us accurately identifying all risks and accurately limiting our exposures based on our assessments. For further information on our ERM framework, see “Enterprise Risk Management” in Item 1.
Our business is dependent upon insurance and reinsurance brokers and intermediaries, and the loss of important broker relationships could materially adversely affect our ability to market our products and services.
We market our insurance and reinsurance products primarily through brokers and intermediaries. We derive a significant portion of our business from a limited number of brokers. During 2018,2019, approximately 11.4%12.2% and 9.3%9.6% of our gross premiums written were generated from or placed by Aon Corporation and its subsidiaries and Marsh & McLennan Companies and its subsidiaries, respectively. No other broker and no one insured or reinsured accounted for more than 10% of gross premiums written for 2018.2019. Some of our competitors have higher financial strength ratings, offer a larger variety of products, set lower prices for insurance coverage, offer higher commissions and/or have had longer term relationships with the brokers we use than we have. This may adversely impact our ability to attract and retain brokers to sell our insurance products or brokers may increasingly promote products offered by other companies. The failure or inability of brokers to market our insurance products successfully, or loss of all or a substantial portion of the business provided by these brokers could have a material adverse impact on our business, financial condition and results of operations.


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We could be materially adversely affected to the extent that managing general agents, general agents and other producers exceed their underwriting authorities or if our agents, our insureds or other third parties commit fraud or otherwise breach obligations owed to us.
For certain business conducted by our insurance group, following our underwriting, financial, claims and information technology due diligence reviews, we authorize managing general agents, general agents and other producers to write business on our behalf within underwriting authorities prescribed by us. In addition, our mortgage group delegates the
underwriting of a significant percentage of its primary new insurance written to certain mortgage lenders. Under this delegated underwriting program, the approved customer may determine whether mortgage loans meet our mortgage insurance program guidelines and commit us to issue mortgage insurance. We rely on the underwriting controls of these agents to write business within the underwriting authorities provided by us. Although we have contractual protections in some instances and we monitor such business on an ongoing basis, our monitoring efforts may not be adequate or our agents may exceed their underwriting authorities or otherwise breach obligations owed to us. In addition, our agents, our insureds or other third parties may commit fraud or otherwise breach their obligations to us. To the extent that our agents, our insureds or other third parties exceed their underwriting authorities, commit fraud or otherwise breach obligations owed to us in the future, our financial condition and results of operations could be materially adversely affected.
We are exposed to credit risk in certain of our business operations.
In addition to exposure to credit risk related to our investment portfolio, reinsurance recoverables and reliance on brokers and other agents (each discussed elsewhere in this section), we are exposed to credit risk in other areas of our business related to policyholders. We are exposed to credit risk in our insurance group’s surety unit where we guarantee to a third party that our policyholder will satisfy certain performance or financial obligations. If our policyholder defaults, we may suffer losses and be unable to be reimbursed by our policyholder. We are exposed to credit risk in our insurance group’s construction and national accounts units where we write large deductible insurance policies. Under these policies, we are typically obligated to pay the claimant the full amount of the claim (shown as “contractholder payables” on our consolidated balance sheets). We are subsequently reimbursed by the policyholder for the deductible amount (shown as “contractholder receivables” on our consolidated balance sheets), which can be a set amount per claim and/or an aggregate amount for all covered claims. As such, we are exposed to credit risk from the policyholder. We are also exposed to credit risk from policyholders on smaller deductibles in other insurance group lines, such as healthcare and excess and surplus casualty.
Additionally, we write retrospectively rated policies (i.e., policies in which premiums are adjusted after the policy period based on the actual loss experience of the policyholder during the policy period). In this instance, we are exposed to credit risk to the extent the adjusted premium is greater than the original premium. While we generally seek to mitigate this risk through collateral agreements that require the posting of collateral in such forms as cash and letters of credit from banks, our efforts to mitigate the credit risk that we have to our policyholders may not be successful. Although we have not experienced any material credit losses to date, an increased inability of our policyholders to meet their obligations to us could have a


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material adverse effect on our financial condition and results of operations.
Our investment performance may affect our financial results and ability to conduct business.
Our operating results depend in part on the performance of our investment portfolio. A significant portion of cash and invested assets held by Arch consists of fixed maturities (76.1%(75.8% as of December 31, 2018)2019). Although our current investment guidelines and approach stress preservation of capital, market liquidity and diversification of risk, our investments are subject to market-wide risks and fluctuations. In addition, we are subject to risks inherent in particular securities or types of securities, as well as sector concentrations. Changing market conditions could materially affect the future valuation of securities in our investment portfolio, which could cause us to impair some portion of those securities. We may not be able to realize our investment objectives, which could have a material adverse effect on our financial results. In the event that we are unsuccessful in correlating our investment portfolio with our expected insurance and reinsurance liabilities, we may be forced to liquidate our investments at times and prices that are not optimal, which could have a material adverse effect on our financial results and ability to conduct our business.
Foreign currency exchange rate fluctuation may adversely affect our financial results.
We write business on a worldwide basis, and our results of operations may be affected by fluctuations in the value of currencies other than the U.S. Dollar. The primary foreign currencies in which we operate are the Euro, the British Pound Sterling, the Australian Dollar and the Canadian Dollar. Changes in foreign currency exchange rates can reduce our revenues, increase our liabilities and costs and cause fluctuations in the valuation of our investment portfolio. We may therefore suffer losses solely as a result of exchange rate fluctuations. In order to mitigate our exposure to foreign currency fluctuations in our net insurance liabilities, we have invested and expect to continue to invest in securities denominated in currencies other than the U.S. Dollar. In addition, we may replicate investment positions in foreign currencies using derivative financial instruments. Net foreign exchange gains, excluding amounts reflected in the ‘other’ segment, were $58.7 million for 2018, compared to losses of $113.3 million for 2017 and gains of $31.4 million for 2016. Changes in


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the value of investments due to foreign currency rate movements are reflected as a direct increase or decrease to shareholders' equity and are not included in the statement of income. We have chosen not to hedge certain currency risks on capital contributed to certain subsidiaries, including to Arch Insurance Europe held in British Pound Sterling, and may continue to choose not to hedge our currency risks. There can be no assurances that arrangements to match projected liabilities in foreign currencies with investments in the same
currencies or derivative financial instruments will mitigate the negative impact of exchange rate fluctuations, and we may suffer losses solely as a result of exchange rate fluctuations.
We may be adversely affected by changes in economic conditions, including interest rate changes.
Our operating results are affected by, and we are exposed to, significant financial and capital markets risk, including changes in interest rates, real estate values, foreign currency exchange rates, market volatility, the performance of the economy in general, the performance of our investment portfolio and other factors outside our control. Interest rates are highly sensitive to many factors, including the fiscal and monetary policies of the U.S. and other major economies, inflation, economic and political conditions and other factors beyond our control. Although we attempt to take measures to manage the risks of investing in changing interest rate environments, we may not be able to mitigate interest rate sensitivity effectively. Despite our mitigation efforts, an increase in interest rates could have a material adverse effect on our book value.
Our investment portfolio includes residential mortgage backed securities (“RMBS”). As of December 31, 2018,2019, RMBS constituted approximately 2.7%2.4% of cash and invested assets held by Arch. As with other fixed income investments, the fair value of these securities fluctuates depending on market and other general economic conditions and interest rate trends. In periods of declining interest rates, mortgage prepayments generally increase and RMBS are prepaid more quickly, requiring us to reinvest the proceeds at the then current market rates. Conversely, in periods of rising rates, mortgage prepayments generally fall, preventing us from taking full advantage of the higher level of rates. The residential mortgage market in the U.S has experienced a variety of difficulties in certain underwriting periods. A decline or an extended flattening in residential property values may result in additional increases in delinquencies and losses on residential mortgage loans generally, especially with respect to any residential mortgage loans where the aggregate loan amounts (including any subordinate loans) are close to or greater than the related property values. These developments may have a significant adverse effect on the prices of loans and securities, including those in our investment portfolio and may have other wide ranging consequences, including downward pressure on economic growth and the potential for increased insurance and reinsurance exposures, which could have an adverse impact on
our results of operations, financial condition, business and operations.
Mortgage insurance losses result when a borrower becomes unable to continue to make mortgage payments and the home of such borrower cannot be sold for an amount that covers unpaid principal and interest and the expenses of the sale. Deteriorating economic conditions increase the likelihood that borrowers will have insufficient income to pay their mortgages


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and can adversely affect housing values. In addition, natural disasters or other catastrophic events could result in increased claims if such events adversely affected the employment and income of borrowers and the value of homes. Any of these events or deteriorating economic conditions could cause our mortgage insurance losses to increase and adversely affect our results of operations and financial condition. See “Management’s Discussion and Analysis of Financial Condition and Results of OperationsCatastrophic Events and Severe Economic Events.”Events” in Item 7 for further details.
Our portfolio includes commercial mortgage backed securities (“CMBS”). At December 31, 2018,2019, CMBS constituted approximately 3.7%3.3% of cash and invested assets held by Arch. The commercial real estate market may experience price deterioration, which could lead to delinquencies and losses on commercial real estate mortgages.
In addition, in each year, a significant portion of our mortgage insurance premiums will be from mortgage insurance written in prior years. The length of time insurance remains in force, referred to as persistency, is a significant driver of mortgage insurance revenues. Factors affecting persistency include: current mortgage interest rates compared to those rates on mortgages in our insurance in force, which affects the likelihood of the insurance in force to be subject to cancellation due to borrower refinancing; the amount of home equity, as homeowners with more equity in their homes can generally more readily move to a new residence or refinance their existing mortgage; and mortgage insurance cancellation policies and practices of mortgage investors and mortgage services and the cancellation of borrower-paid mortgage insurance, either upon request of the borrower or as required by law based upon the amortization of the loan. In 2018, the GSEs announced changes to various mortgage insurance termination requirements that are intended to further simplify the process of evaluating borrower-initiated requests for mortgage insurance termination. Among other things, these changes update evidence of value requirements for borrower requested cancellation based on the original value of the property and the current value of the property, raise Fannie Mae’s loan-to-value ratio for cancellation based on substantial improvements from 75% or less to 80% or less, provide clarification regarding what constitutes substantial improvements to the property, allow servicers to respond to either verbal or written requests for mortgage insurance cancellation by a borrower, and provide servicers flexibility in evaluating the payment history of borrowers that have been impacted by certain disaster events.


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Fannie Mae’sMae implemented these changes in this area must be implemented by March 1, 2019, although certain requirements have beenwere implemented as early as January 1, 2019. Freddie Mac’s new requirements became effective October 1, 2018. If these or other factors cause the length of time our mortgage insurance policies remain in force to decline, our mortgage insurance revenues could be adversely affected.
Significant, continued volatility in financial markets, changes in interest rates, a lack of pricing transparency, decreased market liquidity, declines in equity prices and the strengthening or weakening of foreign currencies against the U.S. Dollar, individually or in tandem, could have a material adverse effect on our results of operations, financial condition or cash flows through realized losses, impairments and changes in unrealized positions.
Uncertainty Relatingrelating to the Determinationdetermination of LIBOR and the Potential Phasingpotential phasing out and replacement of LIBOR after 2021 may Adversely Affectadversely affect our Costcost of Capital, Net Investment Incomecapital, net investment income and Mortgage Reinsurance Costs.mortgage reinsurance costs.
On July 27, 2017, the U.K. Financial Conduct Authority announced that it intends to stop persuading or compelling banks to submit LIBOR rates after 2021. Accordingly, it is uncertain whether ICE, the entity responsible for administeringAs a result, LIBOR will continueand certain other indices which are currently utilized as benchmarks are not expected to quote LIBORbe published after 2021. In addition,LIBOR is the benchmark rate that is used by many banks and issuers to set interests in early 2018,loan documents. Recognizing the ICE stated its intentionneed to continue to administer and quotereplace LIBOR, after 2021, possibly employing an alternative methodology. Therefore, no assurance can be given that LIBOR on any date accurately representsauthorities in the London interbank rate orUnited States convened the rate applicable to actual loansAlternative Reference Rate Committee (“ARRC”) in U.S. dollars for the relevant period between leading European banks, or that the underlying methodology for LIBOR will not change. Efforts2014 to identify a setreplacement for LIBOR. In 2017, the ARRC identified the Secured Overnight Financing Rate (“SOFR”) - a combination of certain overnight repo rates, as its preferred alternative U.S. dollar reference interest rates include proposals by the Alternative Reference Rates Committee of the Federal Reserve Boardto LIBOR, and in April 2018, the Federal Reserve Bank of New York. ThereYork began publishing the SOFR rate. Because SOFR is currently no definitive information regardingan overnight rate, versus the futurevarious term rates that are available with LIBOR, and SOFR is also a risk-free rate, versus LIBOR which has an embedded credit charge, the transition from LIBOR to SOFR will require adjustments. The uncertainty of LIBOR orthese adjustments, and the timing of any particular replacement rate that may be established or any other reforms to LIBOR that may be adopted inwhen the United Kingdom, in the U.S. or elsewhere.
Uncertainty as to the nature of such potential changes, alternative reference rates or other reformstransition will occur may adversely affect the value of and trading market for LIBOR-based securities. Moreover, the transition to SOFR from LIBOR for U.S. Dollar transactions as well as LIBOR transitions in other currencies and any future reform, replacement or disappearance of LIBOR may adversely affect the value of and return of our investmentinvestment portfolio, our cost of capital and our cost of issuing Bellemeade mortgage risk transfer securities. We do not believe that it is possible to predict how markets will respond to the transition to SOFR from LIBOR on new or existing financial instruments or quantify the potential effect of any such event on us at this time. While we have an internal committee focused on managing the replacement of LIBOR for our investments and operations, we do not believe that it is possible to predict how markets will respond to the transition to SOFR, or any other rate, from
LIBOR on new or existing financial instruments or quantify the potential effect of any such event on us at this time.
The determination of the amount of allowances and impairments taken on our investments is highly subjective and could materially impact our results of operations or financial position.
On a quarterly basis, we perform reviews of our investments to determine whether declines in fair value below the cost basis are considered other-than-temporary in accordance with applicable accounting guidance regarding the recognition and presentation of other-than-temporary impairments. The process of determining whether a security is other-than-temporarily impaired requires judgment and involves analyzing many factors. These factors include: an analysis of the liquidity, business prospects and overall financial condition of the issuer;


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the time period in which there was a significant decline in value; the significance of the decline; and the analysis of specific credit events. There can be no assurance that our management has accurately assessed the level of impairments taken and allowances reflected in our financial statements. Furthermore, additional impairments may need to be taken or allowances provided for in the future. Historical trends may not be indicative of future impairments or allowances. Further, rapidly changing and unpredictable credit and equity market conditions could materially affect the valuation of securities carried at fair value as reported within our consolidated financial statements and the period-to-period changes in value could vary significantly. Decreases in value could have a material adverse effect on our financial condition and results of operations.
Certain of our investments are illiquid and are difficult to sell, or to sell in significant amounts at acceptable prices, to generate cash to meet our needs.
Our investments in certain securities, including certain fixed income and structured securities, investments in funds accounted for using the equity method, other alternative investments and strategic investments in joint ventures such as Watford, Re, Premia Re and others, may be illiquid due to contractual provisions or investment market conditions. If we require significant amounts of cash on short notice in excess of anticipated cash requirements, then we may have difficulty selling these investments in a timely manner or may be forced to sell or terminate them at unfavorable values.
We may require additional capital or credit in the future, which may not be available or may only be available on unfavorable terms.
The capital requirements of our businesses depend on many factors, including regulatory and rating agency requirements, the performance of our investment portfolio, our ability to write new business successfully, the frequency and severity of catastrophe events and our ability to establish premium rates and reserves at levels sufficient to cover losses. We may need


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to raise additional funds through equity or debt financings. Any equity or debt financing, if available at all, may be on terms that are unfavorable to us. Equity financings could be dilutive to our existing shareholders and could result in the issuance of securities that have rights, preferences and privileges that are senior to those of our outstanding securities. If we are not able to obtain adequate capital, our business, results of operations and financial condition could be adversely affected. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Liquidity and Capital Resources.”Resources” in Item 7 for further details.
The loss of our key employees or our inability to retain them could negatively impact our business.
Our success has been, and will continue to be, dependent on our ability to retain the services of our existing key executive officers and to attract and retain additional qualified personnel in the future. The pool of talent from which we actively recruit is limited. Although, to date, we have not experienced difficulties in attracting and retaining key personnel, the inability to attract and retain qualified personnel could have a material adverse effect on our financial condition and results of operations. In addition, our underwriting staff is critical to our success in the production of business. While we do not consider any of our key executive officers or underwriters to be irreplaceable, the loss of the services of our key executive officers or underwriters or the inability to hire and retain other highly qualified personnel in the future could delay or prevent us from fully implementing our business strategy which could affect our financial performance.
Our information technology systems may be unable to meet the demands of customers.
Our information technology systems service our insurance portfolios. Accordingly, we are highly dependent on the effective operation of these systems. While we believe that the systems are adequate to service our insurance portfolios, there can be no assurance that they will operate in all manners in which we intend or possess all of the functionality required by customers currently or in the future.
Our customers, especially our mortgage insurance customers, require that we conduct our business in a secure manner, electronically via the Internet or via electronic data transmission. We must continually invest significant resources in establishing and maintaining electronic connectivity with customers. In order to integrate electronically with customers in the mortgage insurance industry, we require electronic connections between our systems and those of the industry's largest mortgage servicing systems and leading loan origination systems. Our mortgage group currently possesses connectivity with certain of these external systems, but there is no assurance that such connectivity is sufficient and we are continually undertaking new electronic integration efforts with third-party loan servicing and origination systems. We also rely on electronic integrations in our insurance operations, both in the
U.S. and the U.K. The extent to which our insurance operations utilize electronic connections with external systems will expand to address the increasing importance of the use of the information technology for our insurance customers. Our business, financial condition and operating results may be adversely affected if we do not possess or timely acquire the requisite set of electronic integrations necessary to keep pace with the technological demands of customers.


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Technology breaches or failures, including, but not limited to, those resulting from a malicious cyber attack on us or our business partners and service providers, could disrupt or otherwise negatively impact our business and/or expose us to litigation.
We rely on information technology systems to process, transmit, store and protect the electronic information, financial data and proprietary models that are critical to our business. Furthermore, a significant portion of the communications between our employees and our business partners and service providers depends on information technology and electronic information exchange. Like all companies, our information technology systems are vulnerable to data breaches, interruptions or failures due to events that may be beyond our control, including, but not limited to, natural disasters, power outages, theft, terrorist attacks, computer viruses, hackers, errors in usage and general technology failures. Additionally, our employees and vendors may use portable computers or mobile devices which may contain duplicate or similar information to that in our computer systems, and these devices can be stolen, lost or damaged. Security breaches could expose us to the loss or misuse of our information, litigation and potential liability. In addition, cyber incidents that impact the availability, reliability, speed, accuracy or other proper functioning of these systems could have a significant negative impact on our operations and possibly our results. A cyber incident could also result in a violation of applicable privacy and other laws, damage our reputation, cause a loss of customers, adversely affect our stock price, cause us to incur remediation costs, increased cybersecurity protection costs and/or increased insurance premiums, and/or give rise to monetary fines and other penalties, any of which could be significant and could adversely affect our business.
We have outsourced certain technology and business process functions to third parties and may continue do so in the future. Our outsourcing of certain technology and business process functions to third parties may expose us to increased risk related to data security, service disruptions or the effectiveness of our control system, which could result in monetary and reputational damage or harm to competitive position. These risks could increase as vendors increasingly offer cloud-based software services rather than software services which can be run within our data centers.




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We believe that we have established and implemented appropriate security measures to provide reasonable assurance that our information technology systems are secure and appropriate controls and procedures to enable us to identify and respond to unauthorized access to such systems. We regularly engage third parties to evaluate and test the adequacy of our most critical security measures, controls and procedures. Despite these security measures, controls and procedures, disruptions to and breaches of our information technology
systems are possible. Because we rely on our technology systems for many critical functions, including connecting with our customers, if such systems were to fail or be attacked or breached, we may experience a significant disruption in our operations and in the business we receive and process, which could adversely affect our results of operations and financial condition.


In addition, the regulatory environment surrounding information security and privacy is increasingly changing. We are subject to EU, U.S. federal, state and other foreign laws and regulations regarding the protection of personal data and information. These laws and regulations are complex and sometimes conflict. We could be subject to fines, penalties and/or regulatory enforcement actions in one or more jurisdictions if any person, including any employee, disregards or breaches, whether intentionally or negligently, controls intended to protect the confidential information of our employees or clients. Failure to timely report breach incidents under these regulations may also result in fines, penalties and/or other enforcement actions. As an example, the New York State Department of Financial Services adopted a regulation pertaining to cybersecurity for all banking and insurance entities under its jurisdiction that came into effect March 1, 2017. California also enacted the CCPA, which took effect January 1, 2020 and grants California consumers certain rights to, among other things, access and delete data about them subject to certain exceptions, as well as a private right of action with statutory penalties. Additionally, GDPR came into effect on May 25, 2018, and requires businesses offering goods and services to, or monitoring the behavior of, customers in the EU to comply with onerous accountability obligations and significantly enhanced conditions to processing personal data. Non-compliance with the GDPR could result in a fine of up to 4% of a firm’s global annual revenue per violation. As a result, ourOur ability to conduct our business and our results of operations might be materially and adversely affected.
If the volume of low down payment mortgage originations declines, the amount of mortgage insurance we write in the U.S. could decline, which would reduce our mortgage insurance revenues.
The size of the U.S. mortgage insurance market depends in large part upon the volume of low down payment home mortgage originations. Factors affecting the volume of low down payment mortgage originations include, among others: restrictions on
mortgage credit due to stringent underwriting standards and liquidity issues affecting lenders; changes in mortgage interest rates and home prices, and other economic conditions in the U.S. and regional economies; population trends, including the rate of household formation; and U.S. government housing policy. A decline in the volume of low down payment home mortgage originations could decrease demand for mortgage insurance, decrease our U.S. new insurance written and reduce mortgage insurance revenues.


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If the role of the GSEs in the U.S. housing market changes, or if the GSEs change other policies or practices, the amount of mortgage insurance that we write could decline, which would reduce our mortgage insurance revenues.
The GSEs are the beneficiaries of the significant majority of the insurance policies we issue as a result of their purchases, statutorily required or otherwise, of qualifying mortgage loans from lenders or investors. The charters of the GSEs require credit enhancement for low down payment mortgages in order for such loans to be eligible for purchase or guarantee by the GSEs. If the charters of the GSEs were amended to change or eliminate the acceptability of private mortgage insurance, our mortgage insurance business could decline significantly. The FHFA has also indicated the possibility of amending the Preferred Stock Purchase Agreements (“PSPAs”) that the GSEs have executed with the Department of Treasury or pursuing consent orders, in conjunction with releasing the GSEs from conservatorship, to place continuing restrictions on the GSEs post conservatorship. If the PSPAs include restrictions on the loans purchased by the GSEs, our mortgage insurance business could decline.
The premiums we charge for mortgage insurance on insured loans and the associated investment income may not be adequate to compensate for future losses from these loans.
We set premiums at the time a policy is issued based upon our expectations regarding likely performance over the life of insurance coverage. We generally cannot cancel mortgage insurance coverage or adjust renewal premiums during the life of a mortgage insurance policy. As a result, losses from higher than anticipated claims generally cannot be offset by premium increases on policies in force or mitigated by non-renewal or cancellation of insurance coverage. The premiums we charge on our insurance in force and the associated investment income may not be adequate to compensate us for the risks and costs associated with the insurance coverage provided to customers. An increase in the number or size of claims, compared to what we anticipate, could adversely affect Arch MI U.S.’s results of operations and financial condition.
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GSE eligibility requirements for mortgage insurers could require us to contribute additional capital to Arch MI U.S. in the future, and could negatively impact our results of operations and financial condition, or reduce our operating flexibility.
Substantially all of Arch MI U.S.’s insurance written has been for loans sold to the GSEs. The PMIERs apply to Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company, which are GSE-approved mortgage insurers (“eligible mortgage insurers”). The PMIERs impose limitations on the type of risk insured, the forms and insurance policies issued, standards for the geographic and customer diversification of risk, procedures for claims handling, acceptable underwriting practices, standards for certain reinsurance cessions and financial requirements, among other things. The financial requirements require a mortgage insurer’s available assets, which generally include only the most liquid assets of an insurer, to meet or exceed “minimum required assets” as of each quarter end. Our eligible mortgage insurers each satisfied the PMIERs’ financial requirements as of December 31, 2018.2019.
The revised PMIERs also impose additional operational requirements in areas such as claim processing, loss mitigation, underwriting, quality control, and reporting. The revised requirements have caused us to make changes to our business practices and incur additional costs in order to achieve and maintain compliance with the PMIERs. While we do not expect the revised PMIERs to have a significant impact on our operations or a material impact on our capital position the increase in capital required to satisfy the revised PMIERs may decrease our return on capital.
While we intend to continue to comply with these requirements, there can be no assurance that the GSEs will continue to treat Arch Mortgage Insurance Company or United Guaranty Residential Insurance Company as eligible mortgage insurers. If either or both of the GSEs were to cease to consider Arch Mortgage Insurance Company or United Guaranty Residential Insurance Company as eligible mortgage insurers and, therefore, cease accepting our mortgage insurance products, our results of operations and financial condition would be adversely affected.
The mix of business we write affects Arch MI U.S.’s losses and will affect the minimum required assets Arch MI U.S. is required to maintain in order to comply with PMIERs financial requirements.
Our mortgage insurance portfolio includes loans with loan-to-value ratios exceeding 95%, loans with FICO scores below 620, adjustable rate mortgages, (“ARMs”), and less-than A quality loans. Even when housing values are stable or rising, we expect higher default and claim rates for high loan-to-value loans, loans with lower FICO scores, ARMs and less-than A quality loans. Although we attempt to incorporate the higher default
and claim rates associated with these loans into our underwriting and pricing models, there can be no assurance that the premiums earned and the associated investment income will adequately compensate us for future losses from these loans. From time to time, we change the types of loans that we insure and the requirements under which we insure them. In 2017 and 2018, we modestly expanded our underwriting guidelines and we may further expand such guidelines in the future.
The geographic mix of Arch MI U.S.’s business could increase losses and harm our financial performance. We are affected by economic downturns and other events in specific regions of the United States where a large portion of our U.S. mortgage insurance business is concentrated. As of December 31, 2018,2019, 7.7% of Arch MI U.S.’s primary risk-in-force was located in Texas, 6.3%7.1% was located in California and 5.0%5.3% was located in Florida. See “Management’s Discussion and Analysisthe Mortgage Operations Supplemental Information section of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Mortgage Operations Supplemental Information.”Pronouncements” in Item 7 for further details.


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Arch MI U.S.’s minimum required assets under the PMIERs will be determined, in part, by the particular risk profiles of the loans it insures. If, absent other changes, Arch MI U.S.’s mix of business changes to include more loans with higher loan-to-value ratios or lower credit scores, it will have a higher minimum required asset amount under the PMIERs and, accordingly, be required to hold more capital in order to maintain GSE eligibility.
Potential changes to state mortgage insurance regulations could reduce Arch MI U.S.’s profitability and its ability to compete with credit enhancement alternatives to mortgage insurance.
The NAIC, which reviews state insurance laws and regulations, has established a Mortgage Guaranty Insurance Working Group (“Working Group”) to make recommendations to the NAIC's Financial Condition Committee regarding changes to the NAIC’s Mortgage Guaranty Insurance Model Act. The Working Group has released a draftsdraft of the Model Act which includes proposed changes to minimum statutory capital requirements.
If the NAIC revises the Model Act, some state legislatures are likely to enact and implement part or all of the revised provisions. While we cannot predict the effect that any NAIC recommendations or future legislation may have on Arch MI U.S., such changes could reduce Arch MI U.S.’s profitability and its ability to compete with credit enhancement alternatives to mortgage insurance, which could adversely affect our financial condition or results of operations.


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If servicers fail to adhere to appropriate servicing standards or experience disruptions to their businesses, our mortgage insurance operations could be adversely affected.
We depend on reliable, consistent third-party servicing of the loans that we insure. Among other things, our mortgage insurance policies require our customers and their servicers to timely submit premium and reports and utilize commercially reasonable efforts to limit and mitigate loss when a loan is in default. Without reliable, consistent third-party servicing, our insurance subsidiaries may be unable to correctly record new loans as they are underwritten, receive and process payments on insured loans and/or properly recognize and establish reserves on loans when a default exists or occurs but is not reported to us. In addition, if these servicers fail to limit and mitigate losses when appropriate, our losses may unexpectedly increase. If one or more servicers failed to adhere to these requirements, our financial results could be adversely affected.
The implementation of the Basel III Capital Accord may adversely affect the use of mortgage insurance by certain banks.
With certain exceptions, the Basel III Rules became effective on January 1, 2014. If further implementation of the Basel III
Rules increases the capital requirements of banking organizations with respect to the residential mortgages we insure or does not provide sufficiently favorable treatment for the use of mortgage insurance, it could adversely affect the demand for mortgage insurance. In December 2017, the Basel Committee published final revisions to the Basel Capital Accord that willwhich is informally denominated in the U.S. as “Basel IV.” The Basel Committee expects the new rules to be phased-in beginning in January 2020 and fully implemented by each participating country by January 1, 2022.2027. In October 2019, the EU stated that it will conduct an “impact study” of the new rules before implementation, indicating that additional changes are possible. Under these revised rules, banks using the standardized approach for credit risk management will determine the risk-weight for residential mortgages based on the loan-to-value ratio at loan origination, without consideration of mortgage insurance. UnderAs prescribed at the standardized approach, afterinternational level, the appropriate risk-weight is determined, the existencenew standard would permit consideration of mortgage insurance, could be considered, but only if the company issuing the insurance has a lower risk-weight than the underlying exposure. Mortgage insurance issued by private companies would not meet this test.test in connection with residential mortgage. Therefore, under the latest Basel Capital Accord,2017 international agreement, mortgage insurance could not mitigate credit and lower the capital charge under the standardized approach. To date the U.S. banking agencies have not begun the implementation of Basel IV standards. If the Basel Capital AccordIV standard is implemented in the United States in this form,U.S. without modification, mortgage insurance would not lower the loan-to-value ratio of residential loans for capital purposes, and therefore may decrease the demand for this product.product may decrease. It is also possible that the U.S. regulatory agencies could determine that their current capital rules are at least as stringent as the Basel Committee’s 2017 revisions,IV standards, in which case no
change would be mandated.required regarding the treatment of mortgage insurance for capital purposes. However, if the U.S. agencies decide to implement the new standards as specifically drafted by the Basel Committee, mortgage insurance would not lower the loan-to-value ratio of residential loans for capital purposes, and therefore may decrease the demand for this product.
Further, it is possible (but not mandated by the Basel Capital Accord) that the banking agencies and the GSEs might likewise discontinue taking mortgage insurance into account when determining a mortgage’s loan-to-value ratio for prudential (non-capital) purposes. Additionally, a new riskbasedrisk-based capital proposal for the GSEs was published for comment by the FHFA in 2018. Under this proposal the capital requirements of these GSEs would take into account the existence of credit mitigants, such as mortgage insurance. However, as proposed, mortgage insurance issued by monoline mortgage insurance companies would result in less capital relief than the capital relief afforded by other forms of credit mitigation, such as the issuance of credit-linked notes. The final form oftheIn November 2019 the FHFA announced that it would re-propose the 2018 capital rules in 2020. In that announcement the FHFA explained that the re-proposed rule is likely to change based on comments received from industry participants andwould be consistent with the viewsgoal of the new director of the FHFA. However, if adopted as proposed, these capital regulations might incentreleasing the GSEs to favor these forms of credit risk mitigation when they havefrom conservatorship and ensuring that taxpayers will never be on the option to use these instruments.If these developments should occur, they would adversely affecthook again during an economic downturn. If this rulemaking is finalized, a new capital framework for the Enterprises might disadvantage monoline mortgage insurance companies, or otherwise reduce the demand for this product. The capital rules proposed by FHFA may also prompt the banking regulators to re-examine the bank capital rules, and such action could disadvantage monoline mortgage insurance in the U.S. which would adversely affect our U.S. mortgage insurance operations.companies.


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Some of the provisions of our bye-laws and our shareholders agreement may have the effect of hindering, delaying or preventing third party takeovers or changes in management initiated by shareholders. These provisions may also prevent our shareholders from receiving premium prices for their shares in an unsolicited takeover.
Some provisions of our bye-laws could have the effect of discouraging unsolicited takeover bids from third parties or changes in management initiated by shareholders. These provisions may encourage companies interested in acquiring us to negotiate in advance with our board of directors, since the board has the authority to overrule the operation of several of the limitations.
Among other things, our bye-laws provide: for a classified board of directors, in which the directors of the class elected at each annual general meeting holds office for a term of three years, with the term of each class expiring at successive annual general meetings of shareholders; that the number of directors is determined by the board from time to time by a vote of the majority of our board; that directors may only be removed for cause, and cause removal shall be deemed to exist only if the director whose removal is proposed has been convicted of a


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felony or been found by a court to be liable for gross negligence or misconduct in the performance of his or her duties; that our board has the right to fill vacancies, including vacancies created by an expansion of the board; and for limitations on a shareholder’s right to raise proposals or nominate directors at general meetings. Our bye-laws provide that certain provisions which may have anti-takeover effects may be repealed or altered only with prior board approval and upon the affirmative vote of holders of shares representing at least 65% of the total voting power of our shares entitled generally to vote at an election of directors.
The bye-laws also contain a provision limiting the rights of any U.S. person (as defined in section 7701(a)(30) of the Internal Revenue Code of 1986, as amended (the “Code”)) that owns shares of Arch Capital, directly, indirectly or constructively (within the meaning of section 958 of the Code), representing more than 9.9% of the voting power of all shares entitled to vote generally at an election of directors. The votes conferred by such shares of such U.S. person will be reduced by whatever amount is necessary so that after any such reduction the votes conferred by the shares of such person will constitute 9.9% of the total voting power of all shares entitled to vote generally at an election of directors. Notwithstanding this provision, the board may make such final adjustments to the aggregate number of votes conferred by the shares of any U.S. person that the board considers fair and reasonable in all circumstances to ensure that such votes represent 9.9% of the aggregate voting power of the votes conferred by all shares of Arch Capital entitled to vote generally at an election of directors. Arch Capital will assume that all shareholders (other than specified persons)
are U.S. persons unless we receive assurance satisfactory to us that they are not U.S. persons.
The bye-laws also provide that the affirmative vote of at least 66 2/3% of the outstanding voting power of our shares (excluding shares owned by any person (and such person’s affiliates and associates) that is the owner of 15% or more (a “15% Holder”) of our outstanding voting shares) shall be required for various corporate actions, including: merger or consolidation of the company into a 15% Holder; sale of any or all of our assets to a 15% Holder; the issuance of voting securities to a 15% Holder; or amendment of these provisions; provided, however, the supermajority vote will not apply to any transaction approved by the board.
The provisions described above may have the effect of making more difficult or discouraging unsolicited takeover bids from third parties. To the extent that these effects occur, shareholders could be deprived of opportunities to realize takeover premiums for their shares and the market price of their shares could be depressed. In addition, these provisions could also result in the entrenchment of incumbent management.
There are regulatory limitations on the ownership and transfer of our common shares.
The jurisdictions in which our insurance and reinsurance subsidiaries operate have laws and regulations that require regulatory approval of a change in control of an insurer or an insurer's holding company. Where such laws apply to us and our subsidiaries, there can be no effective change in our control unless the person seeking to acquire control has filed a statement with the regulators and has obtained prior approval for the proposed change from such regulators. The usual measure for a presumptive change in control pursuant to these laws is the acquisition of 10% or more of the voting power of the insurance company or its parent, although this presumption is rebuttable. Consequently, a person may not acquire 10% or more of our common shares without the prior approval of the applicable insurance regulators. These laws may discourage potential acquisition proposals and may delay, deter or prevent a change in control of us, including transactions that some shareholders might consider to be desirable.
Our insurance and reinsurance subsidiaries are subject to regulation in various jurisdictions, and failure to comply with existing regulations or material changes in the regulation of their operations, or any investigations, inquiries or demands by government authorities, could adversely affect us.
Our insurance and reinsurance subsidiaries are subject to the laws and regulations of a number of jurisdictions worldwide, including Bermuda, the states in the U.S. in which such subsidiaries conduct business, the U.K., certain EU Member States, Canada, Switzerland, Australia and Hong Kong. Existing laws and regulations, among other things, limit the


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amount of dividends that can be paid to us by our insurance and reinsurance subsidiaries, prescribe solvency and capital adequacy standards, impose restrictions on the amount and type of investments that can be held to meet solvency and capital adequacy requirements, require the maintenance of reserve liabilities, and require pre-approval of acquisitions and certain affiliate transactions. Failure to comply with these laws and regulations or to maintain appropriate authorizations, licenses, and/or exemptions under applicable laws and regulations may cause governmental authorities to preclude or suspend our insurance or reinsurance subsidiaries from carrying on some or all of their activities, place one or more of them into rehabilitation or liquidation proceedings, impose monetary penalties or other sanctions on them or our affiliates, or commence insurance company delinquency proceedings against our insurance or reinsurance subsidiaries. The application of these laws and regulations by various governmental authorities, including authorities outside the U.S., may affect our liquidity and restrict our ability to expand our business operations through acquisitions or to pay dividends on our ordinary shares. Furthermore, compliance with legal and regulatory requirements may result in significant expenses, which could have a negative impact on our profitability.
In addition to legal and regulatory requirements, the insurance and reinsurance industry has experienced substantial volatility


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as a result of investigations, litigation and regulatory activity by various insurance, governmental and enforcement authorities, including the SEC, concerning certain practices within the insurance and reinsurance industry. Our involvement in any investigations, litigations or regulatory activity, including any related lawsuits, would cause us to incur legal costs and, if we or any of our insurance or reinsurance subsidiaries were found to have violated any laws or regulations, we could be required to pay fines and damages and incur other sanctions, perhaps in material amounts, which could have a material negative impact on our profitability.
Any such litigation or failure to comply with applicable laws could result in the imposition of significant restrictions on our ability to do business, and could also result in suspensions, injunctions, monetary damages, fines or other sanctions, any or all of which could adversely affect our financial condition and results of operations.
Our reinsurance subsidiaries may be required to provide collateral to ceding companies, by applicable regulators, their contracts or other commercial considerations. Their ability to conduct business could be significantly and negatively affected if they are unable to do so.
Arch Re Bermuda is a registered Bermuda insurance company and is not licensed or admitted as an insurer in any jurisdiction in the U.S., although Arch Re Bermuda has been approved as a “certified reinsurer” in certain U.S. states that allow reduced collateral for reinsurance ceded to such reinsurers. Arch Re
Bermuda's contracts generally require it to post a letter of credit or provide other security, even in U.S. states where it has been approved for reduced collateral. State credit for reinsurance rules also generally provide that certified reinsurers such as Arch Re Bermuda must provide 100% collateral in the event their certified status is “terminated” or upon the entry of an order of rehabilitation, liquidation or conservation against a ceding insurer.
Although, to date, Arch Re Bermuda has not experienced any difficulties in providing collateral when required, if we are unable to post security in the form of letters of credit or trust funds when required, the operations of Arch Re Bermuda could be significantly and negatively affected.
Arch Capital is a holding company and is dependent on dividends and other distributions from its operating subsidiaries.
Arch Capital is a holding company whose assets primarily consist of the shares in our subsidiaries. Generally, Arch Capital depends on its available cash resources, liquid investments and dividends or other distributions from subsidiaries to make payments, including the payment of debt service obligations and operating expenses it may incur and any payments of dividends, redemption amounts or liquidation amounts with
respect to our preferred shares and common shares, and to fund the share repurchase program. The ability of our regulated insurance and reinsurance subsidiaries to pay dividends or make distributions is dependent on their ability to meet applicable regulatory standards. In addition, the ability of our insurance and reinsurance subsidiaries to pay dividends to Arch Capital and to intermediate parent companies owned by Arch Capital could be constrained by our dependence on financial strength ratings from independent rating agencies. Our ratings from these agencies depend to a large extent on the capitalization levels of our insurance and reinsurance subsidiaries. We believe that Arch Capital has sufficient cash resources and available dividend capacity to service its indebtedness and other current outstanding obligations. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources—Liquidity and Capital Resources.”Resources” in Item 7 for further details.
The service of process and enforcement of judgments against us or our directors or officers may be difficult.
We are a Bermuda company and some of our officers and directors are residents of various jurisdictions outside the U.S. All or a substantial portion of our assets and the assets of those persons may be located outside the U.S. As a result, it may be difficult for investors to effect service of process within the U.S. upon those persons or to recover against us or those persons on judgments of U.S. courts based on civil liabilities provisions of the U.S. federal securities laws even though we have appointed National Registered Agents, Inc., New York, New York, as our


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agent for service of process with respect to actions based on offers and sales of securities made in the U.S. Because there is no treaty in effect between the U.S. and Bermuda providing for reciprocal recognition and enforcement of judgments of U.S. courts in civil and commercial matters, a final judgment for the payment of money rendered by a court in the U.S. based on civil liability, whether or not predicated solely upon the U.S. federal securities laws, would not be automatically enforceable in Bermuda, and there are grounds upon which Bermuda courts may not enforce judgments of U.S. courts. Further, no claim may be brought in Bermuda against us or our directors and officers for violation of U.S. federal securities laws, as such laws do not have force of law in Bermuda. A Bermuda court may, however, impose civil liability on us or our directors and officers in a suit brought in the Supreme Court of Bermuda if the facts alleged in the complaint constitute or give rise to a cause of action under Bermuda law.
Our international business is subject to applicable laws and regulations relating to sanctions and foreign corrupt practices, the violation of which could adversely affect our operations.
We must comply with all applicable economic sanctions and anti-bribery laws and regulations of the U.S. and other foreign jurisdictions where we operate, including the U.K., Ireland and the European Community.EU. U.S. laws and regulations applicable to us include the economic trade sanctions laws and regulations administered by the Treasury’s Office of Foreign Assets Control as well as


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certain laws administered by the U.S. Department of State. New sanction regimes may be initiated, or existing sanctions expanded, at any time, which can immediately impact our business activities. In addition, we are subject to the Foreign Corrupt Practices Act and other anti-bribery laws such as the U.K. Bribery Act that generally bar corrupt payments or unreasonable gifts to foreign governments or officials. Although we have policies and controls in place that are designed to ensure compliance with these laws and regulations, it is possible that an employee or intermediary could fail to comply with applicable laws and regulations. In such event, we could be exposed to civil penalties, criminal penalties and other sanctions, including fines or other punitive actions. In addition, such violations could damage our business and/or our reputation. Such criminal or civil sanctions, penalties, other sanctions, and damage to our business and/or reputation could have a material adverse effect on our financial condition and results of operations.
Risk Relating to Our Shares
The market price of our common shares may experience volatility, thereby causing a potential loss of value to our investors.
The market price for our common shares may fluctuate substantially and could cause investment losses. The price of our common shares may not remain at or exceed current levels.
In addition to the risk factors described herein, the following factors may have an adverse impact on the market price for our common shares: announcements by us or our competitors of acquisitions, investments or strategic alliances; changes in the value of our assets; our actual or anticipated quarterly and annual operating results; changes in expectations of future financial performance or changes in estimates of securities analysts; issuances by us of shares or other securities; sales, or the possibility or perception of future sales, by our existing shareholders; our share repurchase program; changes in general conditions in the economy, the insurance industry or the financial markets; changes in market valuation of companies in the insurance and reinsurance industry; fluctuations in stock market processes and volumes; the addition or departure of key personnel; changes in tax law; and adverse press or news announcements affecting us or the industry.
General market conditions and unpredictable factors could adversely affect market prices for our outstanding preferred shares.
There can be no assurance about the market prices for our series of preferred shares that are traded publicly. Several factors, many of which are beyond our control, will influence the fair value of our preferred shares, including, but not limited to:
whether dividends have been declared and are likely to be declared on any series of our preferred shares from time to time;
our creditworthiness, financial condition, performance and prospects;
whether the ratings on any series of our preferred shares provided by any ratings agency have changed;
the market for similar securities; and
economic, financial, geopolitical, regulatory or judicial events that affect us and/or the insurance or financial markets generally.
Dividends on our preferred shares are non-cumulative.
Dividends on our preferred shares are non-cumulative and payable only out of lawfully available funds of Arch Capital under Bermuda law. Consequently, if Arch Capital's board of directors (or a duly authorized committee of the board) does not authorize and declare a dividend for any dividend period with respect to any series of our preferred shares, holders of such preferred shares would not be entitled to receive any such dividend, and such unpaid dividend will not accrue and will never be payable. Arch Capital will have no obligation to pay dividends for a dividend period on or after the dividend payment date for such period if its board of directors (or a duly authorized committee of the board) has not declared such dividend before the related dividend payment date; if dividends on our series E or series F preferred shares are authorized and declared with respect to any subsequent dividend period, Arch Capital will be


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free to pay dividends on any other series of preferred shares and/or our common shares. In the past, we have not paid dividends on our common shares.
Our preferred shares are equity and are subordinate to our existing and future indebtedness.
Our preferred shares are equity interests and do not constitute indebtedness. As such, these preferred shares will rank junior to all of our indebtedness and other non-equity claims with respect to assets available to satisfy our claims, including in our liquidation. As of December 31, 2018,2019, our total long-term debt was $1.73 billion, excluding the ‘other’ segment. We may incur additional debt in the future. Our existing and future indebtedness may restrict payments of dividends on our preferred shares. Additionally, unlike indebtedness, where principal and interest would customarily be payable on specified due dates, in the case of preferred shares, (1) dividends are payable only if declared by the board of directors of Arch Capital (or a duly authorized committee of the board) and (2) as described under “Risks Relating to Our Company—Arch Capital is a holding company and is dependent on dividends and other distributions from its operating subsidiaries,” we are subject to certain regulatory and other constraints affecting our ability to pay dividends and make other payments.


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The voting rights of holders of our preferred shares are limited.
Holders of our preferred shares have no voting rights with respect to matters that generally require the approval of voting shareholders. The limited voting rights of holders of our preferred shares include the right to vote as a class on certain fundamental matters that affect the preference or special rights of our preferred shares as set forth in the certificate of designations relating to each series of preferred shares. In addition, if dividends on our series E or series F preferred shares have not been declared or paid for the equivalent of six dividend payments, whether or not for consecutive dividend periods, holders of the outstanding series E or series F preferred shares will be entitled to vote for the election of two additional directors to our board of directors subject to the terms and to the limited extent as set forth in the certificate of designations relating to such series of preferred shares.
There is no limitation on our issuance of securities that rank equally with or senior to our preferred shares.
We may issue additional securities that rank equally with or senior to our series E and series F preferred shares without limitation. The issuance of securities ranking equally with or senior to our preferred shares may reduce the amount available for dividends and the amount recoverable by holders of such series in the event of a liquidation, dissolution or winding-up of Arch Capital.
Risks Relating to Taxation
We and our non-U.S. subsidiaries may become subject to U.S. federal income taxation and/or the U.S. federal income tax liabilities of our U.S. subsidiaries may increase, including as a result of changes in tax law.
Arch Capital and its non-U.S. subsidiaries intend to operate their business in a manner that will not cause them to be treated as engaged in a trade or business in the U.S. and, thus, will not be required to pay U.S. federal income taxes (other than U.S. excise taxes on insurance and reinsurance premium and withholding taxes on certain U.S. source investment income) on their income. However, because there is uncertainty as to the activities which constitute being engaged in a trade or business in the U.S., there can be no assurances that the IRS will not contend successfully that Arch Capital or its non-U.S. subsidiaries are engaged in a trade or business in the U.S. If Arch Capital or any of its non-U.S. subsidiaries were subject to U.S. income tax, our shareholders' equity and earnings could be adversely affected.
Congress has been considering several legislative proposals intended to eliminate certain perceived tax advantages of Bermuda and other non-U.S. insurance companies. There is no assurance that any such legislative proposal will not be enacted
into law and any such enacted law would not adversely affect income tax liabilities of us or any of our subsidiaries.
The newly enacted U.S. tax lawenactment and its implementation of the Tax Cuts Act may have a material and adverse impact on our operations and financial condition.
The Tax Cuts Act includes significant changes to the taxation of business entities. These changes include, among others, a permanent reduction to the corporate income tax rate. Notwithstanding the reduction in the corporate income tax rate, the overall impact of this tax reform is uncertain, and our business and financial condition could be materially and adversely affected.
Certain provisions in the Tax Cuts Act could have a material and adverse impact on our financial condition and business operation. One such provision imposes a 10% minimum base erosion and anti-abuse tax (reduced to 5% for the 2018 taxable year and increased to 12.5% for the 2026 taxable year and the subsequent taxable years) on the “modified taxable income” of a U.S. corporation (or a non-U.S. corporation engaged in a U.S. trade or business) over such corporation’s regular U.S. federal income tax, reduced by certain tax credits. The “modified taxable income” of a corporation is determined without deduction for certain payments by such corporation to its non-U.S. affiliates (including reinsurance premiums). The reinsurance agreements between our U.S.-based property casualty insurance and reinsurance subsidiaries and Arch Re Bermuda were canceled on a cutoff basis as of January 1, 2018. As such, the level of


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subject business ceded to Arch Re Bermuda was substantially lower in 2018 than in prior periods. Other provisions of the Tax Cuts Act that could have a material and adverse impact on us include a provision that defers or disallows a U.S. corporation’s deduction of interest expense to the extent such interest expense exceeds a specified percentage of such U.S. corporation’s “adjusted taxable income” and a provision that adjusts the manner in which a U.S. property and casualty insurance company computes its loss reserve. There is no assurance that subsequent change in tax laws will not materially and adversely affect our operations and financial condition.
The results of the 2020 U.S. presidential election could have further impacts on our industry if new legislative or regulatory reforms are adopted. We are unable to predict at this time the effect of any such reforms.
Our non-U.K. companies may be subject to U.K. tax that may have a material adverse effect on our results of operations.
We intend to operate in such a manner so that none of our companies, other than our U.K. subsidiaries and branch operations (the “U.K. Group”), should be resident in the U.K. for tax purposes or carry on a trade, whether or not through a permanent establishment, in the U.K. Accordingly, we do not expect that any of our other subsidiaries, other than the U.K. Group, should be subject to U.K. tax. Case law has held that whether or not a trade is being carried on in the U.K. is a matter of fact and emphasis is placed on where the operations take place from which the profits in substance arise. HM Revenue and Customs might contend successfully that one or more of


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our subsidiaries, in addition to the U.K. Group, is carrying on a trade in the U.K. For U.K. tax purposes, a non-U.K. tax resident company will be subject to U.K. corporation tax only if it carries on a trade through a permanent establishment in the U.K. However, that subsidiary may still be subject to U.K. income tax if it carries on a trade in the U.K., without a permanent establishment, unless it is entitled to the protection afforded by a double tax treaty between the U.K. and the jurisdiction in which that company is resident. If any of our subsidiaries is treated as resident, or carrying on a trade, in the U.K., whether or not through a permanent establishment, and, therefore, subject to U.K. tax, our results of operations could be materially adversely affected.
We may become subject to taxes in Bermuda after March 31, 2035, which may have a material adverse effect on our results of operations.
Under current Bermuda law, we are not subject to tax on income, profits, withholding, capital gains or capital transfers. Furthermore, we have obtained from the Minister of Finance of Bermuda under the Exempted Undertakings Tax Protection Act 1966 of Bermuda, an assurance that, in the event that Bermuda enacts legislation imposing tax computed on profits, income, any capital asset, gain or appreciation, or any tax in the nature of estate duty or inheritance tax, then the imposition of the tax will not be applicable to us or our operations until March 31, 2035. We could be subject to taxes in Bermuda after that date. This assurance does not, however, prevent the imposition of taxes on any person ordinarily resident in
Bermuda or any company in respect of its ownership of real property or leasehold interests in Bermuda.
The impact of Bermuda's letter of commitment to the OECD to eliminate harmful tax practices is uncertain and could adversely affect our tax status in Bermuda.
The Organization for Economic Cooperation and Development (“OECD”) has published reports and launched a global initiative among member and non-member countries on measures to limit harmful tax competition. These measures are largely directed at counteracting the effects of tax havens and preferential tax regimes in countries around the world. Bermuda was not listed in the most recent report as an uncooperative tax haven jurisdiction because it had previously committed to eliminate harmful tax practices, to embrace international tax standards for transparency, to exchange information and to eliminate an environment that attracts business with no substantial domestic activity. We are not able to predict what changes will arise from the commitment or whether such changes will subject us to additional taxes.
The impact of commitments made by the government of Bermuda in order to avoid being named on the EU’s list of non-cooperative tax jurisdictions is uncertain and could have an adverse effect on our results of operations.
Following a year-long screening process, on December 5, 2017 the Council of the European Union published its list of non-cooperative jurisdictions for tax purposes (the “EU Blacklist”). Bermuda was not named on the EU Blacklist due to commitments made by its government to improve certain “substance requirement” deficiencies that were identified by the EU during the screening process. This commitment led to
the passing of the Economic SubstanceES Act 2018 (the “Substance Act”) in December 2018. TheSee “Economic Substance Act” under the heading “Regulation” for further details. As noted above, the ES Act requires certainin-scope Bermuda entities resident in Bermuda to demonstrate that they have adequate economic substance in Bermuda. Broadly, this is expected to be the case where an entity can demonstrate it has adequate income generating activities, employees, premises, and expenditure incurred in Bermuda, although the meaning of "adequate"“adequate” in this context remains unclear. Further, the speed with which the SubstanceES Act was implemented, and the uncertainties in its interpretation, make it difficult to predict its future impact. Any entity found to be lacking adequate economic substance may be fined or ordered by a court to take action to remedy such failure (or face being struck off the companies register). The EU is expected to announce whether the Substance Act is sufficient to keep Bermuda off the EU Blacklist in February 2018. The nature and scope of the sanctions that may be applied as a result of Bermuda being included in the EU Blacklist is still being considered. Sanctions that the EU has recommended Member States adopt include, inter alia, increased auditing of taxpayers using structures or arrangements involving listed jurisdictions and the imposition


ARCH CAPITAL502018 FORM 10-K



of withholding taxes on payments made to such jurisdictions. As a result, there is a risk that bothnon-compliance with its economic substance requirements under the adoption of the SubstanceES Act possible further legislative changes,could require Arch to enhance its infrastructure in Bermuda, and the imposition of sanctionsthis may result in circumstances where Bermuda is ultimately included on the EU Blacklist, could result insome additional operational expenditures, increased tax liabilities and/or compliance costs for Arch.
We may become subject to increased taxation in Bermuda and other countries as a result of the OECD's plan on “Base erosion and profit shifting.”
The OECD, with the support of the G20, initiated the “base erosion and profit shifting” (“BEPS”) project in 2013 in response to concerns that international tax standards have not kept pace with changes in global business practices and that changes are needed to international tax laws to address situations where multinationals may pay little or no tax in certain jurisdictions by shifting profits away from jurisdictions where the activities creating those profits may take place. In October 2015, the OECD issued “final reports” in connection with the BEPS project. The final reports were approved for adoption by the G20 finance ministers in November 2015. The final reports provide the basis for international standards for corporate taxation that are designed to prevent, among other things, the artificial shifting of income to tax havens and low-tax jurisdictions, the erosion of the tax base through interest deductions on intercompany debt and the artificial avoidance of permanent establishments (i.e.(i.e., tax nexus with a jurisdiction).
Legislation to adopt these standards has been enacted or is currently under consideration in a number of jurisdictions to


ARCH CAPITAL482019 FORM 10-K



implement these standards, including country by country reporting. As a result, our income may be taxed in jurisdictions where it is not currently taxed and at higher rates of tax than currently taxed, which may substantially increase our effective tax rate. Also, the continued adoption of these standards may increase the complexity and costs associated with tax compliance and adversely affect our financial position and results of operations.
In May 2019, the OECD published a “Programme of Work,” divided into two pillars, which is designed to address the tax challenges created by an increasing digitalized economy. Pillar One addresses the broader challenge of a digitalized economy and focuses on the allocation of group profits among taxing jurisdictions based on a market-based concept rather than historical “permanent establishment” concepts. Pillar Two addresses the remaining BEPS risk of profit shifting to entities in low tax jurisdictions by introducing a global minimum tax and a proposed tax on base eroding payments, which would operate through a denial of a deduction or imposition of source-based taxation (including withholding tax) on certain payments. In January 2020, the OECD released a statement excluding most financial services activities, including insurance activities, from the scope of the profit reallocation mechanism in Pillar I. The OECD statement cited the presence of commercial (rather than consumer) customers as grounds for the carve-out, but also acknowledged that a “compelling case” could be made that the consumer-facing business lines of insurance companies should be excluded from the scope of Pillar I given the impact of regulations and licensing requirements that typically ensure that residual profits are largely realized in local customer markets. However, the OECD noted that the proper scope for Pillar I as applied to “unregulated elements of the financial services sector” may require further consideration. The OECD expects to reach agreement on key policy issues by July 2020, with a final proposal to be agreed to by the participating members by the end of 2020 and incorporated into local jurisdiction tax laws and treaties sometime shortly thereafter. To date, the proposal has been written broadly enough to potentially apply to our activities, and we are unable to determine at this time when such measures would be implemented and if so, whether they will be in a form that whether it would have a material adverse impact on our operations and results.
The EU’s review of harmful tax competition could adversely affect our business, financial condition and results of operations.
During 2017, the EU Economic and Financial Affairs Council (“ECOFIN”) released a list of noncooperative jurisdictions for tax purposes. The stated aim of this list, and accompanying report, was to promote good governance worldwide in order to maximize efforts to prevent tax fraud and tax evasion. Bermuda was not on the list of non-cooperative jurisdictions, but did feature in the report (along with approximately 40 other jurisdictions) as having committed to address concerns relating
to economic substance by December 31, 2018. In accordance with that commitment, Bermuda has enacted legislation that requires certain entities in Bermuda engaged in “relevant activities” to maintain a substantial economic presence in Bermuda and to satisfy economic substance requirements. The list of “relevant activities” includes carrying on as a business any one or more of: banking, insurance, fund management, financing, leasing, headquarters, shipping, distribution and service center, intellectual property and holding entities. Any entity that must satisfy economic substance requirements but fails to do so could face automatic disclosure to competent authorities in the EU of the information filed by the entity with the Bermuda Registrar of Companies in connection with the economic substance requirements and may also face financial penalties, restriction or regulation of its business activities and/or may be struck off as a registered entity in Bermuda.
At present, the impact of these new economic substance requirements is unclear, and it is impossible to predict the nature and effect of these requirements on us. The new economic substance requirements may increase the complexity and costs of carrying on our business and adversely affect our financial condition and results of operations.

Application of the EU Anti-Tax Avoidance Directives

As part of the BEPS project, the EU Council adopted on 12 July 2016 Council Directive (EU) 2016/1164 ("ATAD I"), as amended by Council Directive (EU) 2017/952 ("ATAD II", together with ATAD I, "ATAD"), to provide for minimum standard across EU Member States for tackling aggressive tax planning involving hybrid tax mismatches and interest deductibility. ATAD I was required to be transposed into domestic Member State law with effect from January 1, 2019, whilst ATAD II was required to be transposed into domestic Member State law with effect from January 1, 2020 (with an exception in respect of reverse hybrid mismatch provisions, which should take effect from January 1, 2021). The full impact of the application of ATAD is not yet clear. However, ATAD could adversely affect our financial position and operations, including through the increase of our: (i) our tax burden; (ii) expenditure to ensure compliance; and (iii) administrative burden.



ARCH CAPITAL492019 FORM 10-K




ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1B.UNRESOLVED STAFF COMMENTS
ITEM 2. PROPERTIES
None.

ITEM 2.
PROPERTIES
We lease office space in Bermuda where our principal offices are located. Our insurance group leases space for offices in the U.S., Canada, Bermuda, Europe and Australia. Our reinsurance group leases space for offices in the U.S., Bermuda, Europe, Canada and Dubai. Our mortgage group leases space for offices
in the U.S., Hong Kong and Australia. We believe that the above described office space is adequate for our needs. However, as we continue to develop our business, we may open additional office locations in 2019.2020.


ARCH CAPITAL512018 FORM 10-K



ITEM 3. LEGAL PROCEEDINGS
ITEM 3.
LEGAL PROCEEDINGS
We, in common with the insurance industry in general, are subject to litigation and arbitration in the normal course of our business. As of December 31, 2018,2019, we were not a party to any
 
litigation or arbitration which is expected by management to have a material adverse effect on our results of operations and financial condition and liquidity.

ITEM 4.
MINE SAFETY DISCLOSURES
ITEM 4. MINE SAFETY DISCLOSURES
Not applicable.


ARCH CAPITAL502019 FORM 10-K



PART II

ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

HOLDERS
As of February 20, 2019,25, 2020, and based on information provided to us by our transfer agent and proxy solicitor, there were 860784 holders of record of our common shares (NASDAQ: ACGL) and approximately 43,00064,200 beneficial holders of our common shares.
ISSUER PURCHASES OF EQUITY SECURITIES
The following table summarizes our purchases of common shares for the 20182019 fourth quarter:
  Issuer Purchases of Common Shares
Period Total Number of Shares Purchased (1) Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Approximate Dollar Value of Shares that May Yet be Purchased Under the Plan or Programs (2)
10/1/2018-10/31/2018 559,024 $26.69
 549,043
 $247,339
11/1/2018-11/30/2018 1,042,896 $27.99
 922,344
 $221,529
12/1/2018-12/31/2018 2,156,733 $26.85
 2,152,147
 $163,739
Total 3,758,653 $27.14
 3,623,534
 $163,739
  Issuer Purchases of Common Shares
Period Total Number of Shares Purchased (1) Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Approximate Dollar Value of Shares that May Yet be Purchased Under the Plan or Programs (2)
10/1/2019-10/31/2019 15,288 $41.66
 
 $160,867
11/1/2019-11/30/2019 28,671 $41.27
 
 $1,000,000
12/1/2019-12/31/2019 11,361 $42.06
 
 $1,000,000
Total 55,320 $41.54
 
 $1,000,000
(1)Includes repurchases by Arch Capital of shares, from time to time, from employees in order to facilitate the payment of withholding taxes on restricted shares granted and the exercise of stock appreciation rights. We purchased these shares at their fair market value, as determined by reference to the closing price of our common shares on the day the restricted shares vested or the stock appreciation rights were exercised.
(2)Remaining amount available at December 31, 2018 underIn November 2019, the Board of Arch Capital’sCapital increased the share repurchase authorization to $1.0 billion, under which repurchases may be effected from time to time in open market or privately negotiated transactions through December 31, 2019.2021.




ARCH CAPITAL525120182019 FORM 10-K





PERFORMANCE GRAPH
The following graph compares the cumulative total shareholder return on our common shares for each of the last five years through December 31, 20182019 to the cumulative total return, assuming reinvestment of dividends, of (1) S&P 500 Composite Stock Index (“S&P 500 Index”) and (2) the S&P 500 Property & Casualty Insurance Index. The share price performance presented below is not necessarily indicative of future results.
CUMULATIVE TOTAL SHAREHOLDER RETURN (1)(2)(3)
chart-be6b4e2c9fc93bed673a02.jpgchart-d1de987a0e4557fba8f.jpg
 Base Period  Base Period 
Company Name/Index12/31/1312/31/14
12/31/15
12/31/16
12/31/17
12/31/18
Company Name/Index12/31/1412/31/15
12/31/16
12/31/17
12/31/18
12/31/19
lArch Capital Group Ltd.
$100.00

$99.01

$116.85

$144.56

$152.07

$134.29
Arch Capital Group Ltd.
$100.00

$118.02

$146.01

$153.59

$135.63

$217.72
nS&P 500 Index
$100.00

$113.69

$115.26

$129.05

$157.22

$150.33
S&P 500 Index
$100.00

$101.38

$113.51

$138.29

$132.23

$173.86
pS&P 500 Property & Casualty Insurance Index
$100.00

$115.74

$126.77

$146.68

$179.52

$171.10
S&P 500 Property & Casualty Insurance Index
$100.00

$109.53

$126.73

$155.10

$147.83

$186.07
(1)Stock price appreciation plus dividends.
(2)The above graph assumes that the value of the investment was $100 on December 31, 2013.2014.
(3)This graph is not “soliciting material,” is not deemed filed with the SEC and is not to be incorporated by reference in any filing by us under the Securities Act of 1933 or the Securities and Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.




ARCH CAPITAL535220182019 FORM 10-K






ITEM 6.
SELECTED FINANCIAL DATA
ITEM 6. SELECTED FINANCIAL DATA
The following tables set forth summary historical consolidated financial and operating data (including the results of the ‘other’ segment) and should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our financial statements and the related notes.
(U.S. dollars in thousands except share data)Year Ended December 31,Year Ended December 31,
2018 2017 2016 2015 20142019 2018 2017 2016 2015
Statement of Income Data:                  
Net premiums written$5,346,747
 $4,961,373
 $4,031,391
 $3,817,531
 $3,891,938
$6,039,067
 $5,346,747
 $4,961,373
 $4,031,391
 $3,817,531
Net premiums earned5,231,975
 4,844,532
 3,884,822
 3,733,905
 3,593,748
5,786,498
 5,231,975
 4,844,532
 3,884,822
 3,733,905
Net investment income563,633
 470,872
 366,742
 348,090
 302,585
627,738
 563,633
 470,872
 366,742
 348,090
Equity in net income (loss) of investments accounted for using the equity method45,641
 142,286
 48,475
 25,455
 19,883
123,672
 45,641
 142,286
 48,475
 25,455
Net realized gains (losses)(405,344) 149,141
 137,586
 (185,842) 102,917
366,363
 (405,344) 149,141
 137,586
 (185,842)
Total revenues5,450,568
 5,627,375
 4,463,556
 3,936,590
 3,988,873
6,928,200
 5,450,568
 5,627,375
 4,463,556
 3,936,590
Income before income taxes841,772
 757,277
 855,552
 567,194
 844,247
1,849,110
 841,772
 757,277
 855,552
 567,194
Net income$727,821
 $629,709
 $824,178
 $526,582
 $821,260
$1,693,300
 $727,821
 $629,709
 $824,178
 $526,582
Net (income) loss attributable to noncontrolling interests30,150
 (10,431) (131,440) 11,156
 13,095
(56,981) 30,150
 (10,431) (131,440) 11,156
Net income available to Arch757,971
 619,278
 692,738
 537,738
 834,355
1,636,319
 757,971
 619,278
 692,738
 537,738
Preferred dividends(41,645) (46,041) (28,070) (21,938) (21,938)(41,612) (41,645) (46,041) (28,070) (21,938)
Loss on redemption of preferred shares(2,710) (6,735) 
 
 

 (2,710) (6,735) 
 
Net income available to Arch common shareholders$713,616
 $566,502
 $664,668
 $515,800
 $812,417
$1,594,707
 $713,616
 $566,502
 $664,668
 $515,800
Diluted net income per share$1.73
 $1.36
 $1.78
 $1.36
 $2.01
$3.87
 $1.73
 $1.36
 $1.78
 $1.36
Cash dividends per share
 
 
 
 

 
 
 
 
After-tax operating income available to Arch common shareholders (1)$909,190
 $447,155
 $577,444
 $565,199
 $617,312
$1,162,639
 $909,190
 $447,155
 $577,444
 $565,199
After-tax operating income available to Arch common shareholders per share — diluted (1)$2.20
 $1.07
 $1.54
 $1.49
 $1.53
$2.82
 $2.20
 $1.07
 $1.54
 $1.49
After-tax return on average common equity (2)8.4% 7.2% 10.9% 8.9% 14.7%16.5% 8.4% 7.2% 10.9% 8.9%
After-tax operating return on average common equity (2)10.7% 5.7% 9.4% 9.7% 11.2%12.0% 10.7% 5.7% 9.4% 9.7%
Weighted average common shares and common share equivalents outstanding — diluted (2)412,906,478
 417,785,025
 374,152,479
 378,116,229
 404,766,966
411,609,478
 412,906,478
 417,785,025
 374,152,479
 378,116,229
(1)After-tax operating income available to Arch common shareholders is defined as net income available to Arch common shareholders, excluding net realized gains or losses, net impairment losses included in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other and loss on redemption of preferred shares, net of income taxes. The presentation of after-tax operating income available to Arch common shareholders is a “non-GAAP financial measure” as defined in Regulation G. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—General—Comment on Non-GAAP Financial Measures” for further details.
(2)Equals after-tax operating income available to Arch common shareholders divided by the average of beginning and ending common shareholders’ equity for each period presented. For the 2016 period, the return on average common shareholders’ equity reflects the weighted impact of the $1.10 billion of convertible non-voting common equivalent preferred shares, which were issued on December 31, 2016 as part of the UGC acquisition.






ARCH CAPITAL545320182019 FORM 10-K





(U.S. dollars in thousands except share data)December 31,December 31,
2018 2017 2016 2015 20142019 2018 2017 2016 2015
Balance Sheet Data:                  
Total investable assets (1)$22,324,524
 $22,156,488
 $20,493,952
 $16,340,938
 $15,762,730
$24,990,265
 $22,324,524
 $22,156,488
 $20,493,952
 $16,340,938
Premiums receivable1,299,150
 1,135,249
 1,072,435
 983,443
 948,695
1,778,717
 1,299,150
 1,135,249
 1,072,435
 983,443
Reinsurance recoverables on unpaid and paid losses and loss adjustment expenses2,919,372
 2,540,143
 2,114,138
 1,867,373
 1,812,845
4,346,816
 2,919,372
 2,540,143
 2,114,138
 1,867,373
Total assets32,218,329
 32,051,658
 29,372,109
 23,138,931
 21,967,742
37,885,361
 32,218,329
 32,051,658
 29,372,109
 23,138,931
Reserves for losses and loss adjustment expenses:                  
Before unpaid losses and loss adjustment expenses recoverable11,853,297
 11,383,792
 10,200,960
 9,125,250
 9,036,448
13,891,842
 11,853,297
 11,383,792
 10,200,960
 9,125,250
Net of unpaid losses and loss adjustment expenses recoverable9,039,006
 8,918,882
 8,117,385
 7,296,413
 7,258,145
9,809,192
 9,039,006
 8,918,882
 8,117,385
 7,296,413
Unearned premiums:                  
Before ceded unearned premiums3,753,636
 3,622,314
 3,406,870
 2,333,932
 2,231,578
4,339,549
 3,753,636
 3,622,314
 3,406,870
 2,333,932
Net of ceded unearned premiums2,778,167
 2,695,703
 2,547,303
 1,906,323
 1,854,500
3,104,866
 2,778,167
 2,695,703
 2,547,303
 1,906,323
Senior notes1,733,528
 1,732,884
 1,732,258
 791,306
 791,141
1,871,626
 1,733,528
 1,732,884
 1,732,258
 791,306
Revolving credit agreement borrowings455,682
 816,132
 756,650
 530,434
 100,000
484,287
 455,682
 816,132
 756,650
 530,434
Total liabilities21,780,650
 21,805,723
 20,060,984
 16,028,376
 14,887,435
25,569,809
 21,780,650
 21,805,723
 20,060,984
 16,028,376
Total shareholders’ equity10,231,387
 10,040,013
 9,105,572
 6,905,373
 6,860,795
12,260,148
 10,231,387
 10,040,013
 9,105,572
 6,905,373
Total shareholders' equity available to Arch9,439,827
 9,196,602
 8,253,718
 6,166,542
 6,091,714
11,497,371
 9,439,827
 9,196,602
 8,253,718
 6,166,542
Preferred shareholders' equity780,000
 872,555
 772,555
 325,000
 325,000
780,000
 780,000
 872,555
 772,555
 325,000
Common shareholders' equity available to Arch$8,659,827
 $8,324,047
 $7,481,163
 $5,841,542
 $5,766,714
$10,717,371
 $8,659,827
 $8,324,047
 $7,481,163
 $5,841,542
Common shares and common share equivalents outstanding, net of treasury shares (2)402,454,834
 409,956,417
 406,651,011
 367,883,349
 382,103,802
405,619,201
 402,454,834
 409,956,417
 406,651,011
 367,883,349
Book value per share (2) (3)$21.52
 $20.30
 $18.40
 $15.88
 $15.09
$26.42
 $21.52
 $20.30
 $18.40
 $15.88


(1)This table excludes the collateral received and reinvested and includes the securities pledged under securities lending agreements, at fair value.
(2)Reflects the impact of outstanding convertible non-voting common equivalent preferred shares which were issued on December 31, 2016 as part of the UGC acquisition.
(3)Excludes the effects of stock options and restricted stock and performance units.






ARCH CAPITAL555420182019 FORM 10-K






ITEM 7.
MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following is a discussion and analysis of the financial condition and results of operations for the year ended December 31, 2019 and 2018, including comparisons between 2019 and 2018. Comparisons between 2018 and 2017 have been omitted from this Form 10-K, but may be found in "Management's Discussion and Analysis of Financial Condition and Results of Operations" in Part II, Item 7 of the Company's Annual Report on Form 10-K year ended December 31, 2018 filed with the SEC. This discussion and analysis contains forward-looking statements which involve inherent risks and uncertainties. All statements other than statements of historical fact are forward-looking statements. These statements are based on our current assessment of risks and uncertainties. Actual results may differ materially from those expressed or implied in these statements and, therefore, undue reliance should not be placed on them. Important factors that could cause actual events or results to differ materially from those indicated in such statements are discussed in this report, including the sections entitled “Cautionary Note Regarding Forward-Looking Statements,” and “Risk Factors.”
This discussion and analysis should be read in conjunction with our audited consolidated financial statements and notes thereto presented under Item 8. Tabular amounts are in U.S. Dollars in thousands, except share amounts, unless otherwise noted.
GENERAL

Overview
Arch Capital Group Ltd. (“Arch Capital” and, together with its subsidiaries, “we” or “us”) is a Bermuda public limited liability company with approximately $11.17$13.23 billion in capital at December 31, 20182019 and, through operations in Bermuda, the United States, Europe, Canada, Australia and Canada,Hong Kong, writes specialty lines of property and casualty insurance and reinsurance, as well as mortgage insurance and reinsurance, on a worldwide basis. It is our belief that our underwriting platform, our experienced management team and our strong capital base have enabled us to establish a strong presence in the insurance and reinsurance markets.
The worldwide property casualty insurance and reinsurance industry is highly competitive and has traditionally been subject to an underwriting cycle in which a hard market (high premium rates, restrictive underwriting standards, as well as terms and conditions, and underwriting gains) is eventually followed by a soft market (low premium rates, relaxed underwriting standards, as well as broader terms and conditions, and underwriting losses). Property casualty market conditions may affect, among other things, the demand for our products, our
ability to increase premium rates, the terms and conditions of the insurance policies we write, changes in the products offered by us or changes in our business strategy.
The financial results of the property casualty insurance and reinsurance industry are influenced by factors such as the frequency and/or severity of claims and losses, including natural disasters or other catastrophic events, variations in
interest rates and financial markets, changes in the legal, regulatory and judicial environments, inflationary pressures and general economic conditions. These factors influence, among other things, the demand for insurance or reinsurance, the supply of which is generally related to the total capital of competitors in the market.
Mortgage insurance and reinsurance is subject to similar cycles to property casualty except that they have historically been more dependent on macroeconomic conditions.
Current Outlook
Our objective is to achieve an average operating return on average equity of 15% or greater over the insurance cycle, which we believe to be an attractive return to our common shareholders given the risks we assume. We continue to look for opportunities to find acceptable books of business to underwrite without sacrificing underwriting discipline and continue to write a portion of our overall book in catastrophe-exposed business which has the potential to increase the volatility of our operating results.
The broadIn 2019, property and casualty insurance market environment continues to be competitive, with only a few specialty areas providing opportunities to deploy capital at returns which meet our risk-adjusted return requirements. In most of our insurancerates increased in many lines of business and we believe that insurance markets remain in a transitioning phase. Given the uncertainty of current claim trends, the industry needs further rate increases appear to beprovide insurers an adequate buffer and a positive risk-reward proposition. In this kind of environment, risk selection and active capital allocation remain critical to generating superior returns. Strengthening market conditions are evident to us from both the rise in excessour submission activity and our ability to achieve significant rate increases across numerous lines of loss cost trends. However,business.
Reinsurance pricing tends to follow that of the spread between rate changesprimary insurance industry although catastrophe and loss trend is a key variablelarge attritional losses, such as the Japanese typhoons this year, can disproportionately affect results and create opportunities in assessing expected returnsthe reinsurance market. We believe that property facultative and in specialty lines, is volatile by nature. marine businesses are examples of improving markets.
Our underwriting teams continue to execute a disciplined strategy by emphasizing small and medium-sized accounts over large accounts, shrinking premiums in more commoditized


ARCH CAPITAL552019 FORM 10-K



lines such as general liability and directors and officers, and by utilizing reinsurance purchases to reduce volatility on large account, high capacity business. WritingsThe spread between rate changes and loss trend continues to be a key variable in property catastrophe-exposed business continuedassessing expected returns and can be difficult to remain lowquantify precisely, particularly in 2018.specialty lines.
Our mortgage segment continues to experience generally favorable market conditions, withconditions. Although pricing remains competitive in the U.S. stabilizing in, borrower credit quality and the third quarter following the rate changes announced in the first half of 2018.general economy remain strong. Our results continue to reflect our success in making high quality credit underwriting risk decisions and building customer relationships.
Arch remains committed to providing solutions across many offerings as the marketplace evolves, including new mortgage credit risk transfer programs initiated by government sponsored enterprises, or “GSEs,” in 2018. Such programs have begun generating business with banks developing new systems to handle the programs and momentum beginning to build. In


ARCH CAPITAL562018 FORM 10-K



addition, we completed multiple Bellemeade risk transfers to the capital markets throughout 2018,2019, increasing our protection for mortgage tail risk.
FINANCIAL MEASURES

Management uses the following three key financial indicators in evaluating our performance and measuring the overall growth in value generated for Arch Capital’s common shareholders:
Book Value per Share
Book value per share represents total common shareholders’ equity available to Arch divided by the number of common shares and common share equivalents outstanding. Management uses growth in book value per share as a key measure of the value generated for our common shareholders each period and believes that book value per share is the key driver of Arch Capital’s share price over time. Book value per share is impacted by, among other factors, our underwriting results, investment returns and share repurchase activity, which has an accretive or dilutive impact on book value per share depending on the purchase price. Book value per share was $26.42 at December 31, 2019, a 22.8% increase from $21.52 at December 31, 2018, a 6.0% increase from $20.30 at December 31, 2017.2018. The growth in 20182019 reflected strong mortgage insurance underwriting results, partially offset by the impact of an increase in interest rates on our fixed income securities.performance and investment returns.
Operating Return on Average Common Equity
Operating return on average common equity (“Operating ROAE”) represents annualized after-tax operating income available to Arch common shareholders divided by average common shareholders’ equity available to Arch during the period. After-tax operating income available to Arch common
shareholders, a “non-GAAP measure” as defined in the SEC rules, represents net income available to Arch common shareholders, excluding net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses and transaction costs and other, net of income taxes. Management uses Operating ROAE as a key measure of the return generated to Arch common shareholders. See “Comment on Non-GAAP Financial Measures.” Our Operating ROAE was 12.0% for 2019, compared to 10.7% for 2018, compared to 5.7% for 2017 and 9.4% for 2016.2018. The higher Operating ROAE for 20182019 reflected strongfavorable mortgage insurance underwriting performance, while 2017market conditions, strong investment returns reflectedand a higherlower level of catastrophic loss activity.
Total Return on Investments
Total return on investments includes investment income, equity in net income or loss of investments accounted for using the equity method, net realized gains and losses and the change in
unrealized gains and losses generated by Arch’s investment portfolio. Total return is calculated on a pre-tax basis and before investment expenses excluding amounts reflected in the ‘other’ segment, and reflects the effect of financial market conditions along with foreign currency fluctuations. Management uses total return on investments as a key measure of the return generated to Arch common shareholders on the capital held in the business, and compares the return generated by our investment portfolio against benchmark returns which we measured our portfolio against during the periods.
The following table summarizes the pre-tax total return (before investment expenses) of investment held by Arch compared to the benchmark return (both based in U.S. Dollars) against which we measured our portfolio during the periods:
Arch
Portfolio (1)
 
Benchmark
 Return
Arch
Portfolio (1)
 
Benchmark
 Return
Pre-tax total return (before investment expenses):      
Year Ended December 31, 20197.30% 7.39 %
Year Ended December 31, 20180.33% -0.60 %0.33% -0.60 %
Year Ended December 31, 20175.87% 4.74 %
Year Ended December 31, 20162.07% 2.13 %
(1)
Our investment expenses were approximately 0.36%, 0.30%0.33% and 0.34%0.36%, respectively, of average invested assets in 2018, 20172019 and 2016.2018.
Total return for our investment portfolio outperformed that ofwas in line with the benchmark return index in 2018, reflecting2019 and reflected strong performance from our alternative investments. Excluding foreign exchange, total return was 1.13% for 2018, compared to 4.98% for 2017 and 2.35% for 2016. Total return for 2018 reflected the impact of rising interest rates and widening credit spreads, which dampened the total returnreturns on our investment grade fixed income portfolio, and negative returns on equities.equity portfolios.
The benchmark return index is a customized combination of indices intended to approximate a target portfolio by asset mix and average credit quality while also matching the approximate estimated duration and currency mix of our insurance and reinsurance liabilities. Although the estimated duration and


ARCH CAPITAL562019 FORM 10-K



average credit quality of this index will move as the duration and rating of its constituent securities change, generally we do not adjust the composition of the benchmark return index except to incorporate changes to the mix of liability currencies and durations noted above. The benchmark return index should not be interpreted as expressing a preference for or aversion to any particular sector or sector weight. The index is intended solely to provide, unlike many master indices that change based on the size of their constituent indices, a relatively stable basket of investable indices. At December 31, 2018,2019, the benchmark return index had an average credit quality of “Aa2”“Aa3” by Moody’s, an estimated duration of 3.233.02 years.



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The benchmark return index included weightings to the following indices:
 %
ICE BoAML 1-10 Year AAA - A U.S. Corporate & All Yankees, A - AAA Rated Index20.0021.00%
ICE BoAML 1-5 Year U.S. Treasury Index15.00
ICE BoAML 1-10 Year U.S. Municipal Securities Index14.50

ICE BoAML 3-5 Year Fixed Rate Asset Backed Securities Index7.00

ICE BoAML 1-10 Year U.S. Municipal Securities Index5.00
Bloomberg Barclays CMBS Invest Grade Aaa Total Return Index5.00

MSCI ACWI Net Total Return USD Index5.00

Hedge Fund Research HFRX Fixed Income Credit Index5.00
Hedge Fund Research HFRX Equal Weighted Strategies5.00
ICE BoAML 1-10 Year BBB U.S. Corporate Index4.00
ICE BoAML German Government 1-10 Year Index5.004.00

ICE BoAML U.S. Mortgage Backed Securities Index4.00

Hedge Fund Research HFRX Fixed Income CreditICE BoAML 0-3 Month U.S. Treasury Bill Index4.00
ICE BoAML 1-5 Year U.K. Gilt Index3.50
Hedge Fund Research HFRX Equal Weighted Strategies3.50

ICE BoAML 5-10 Year U.S. Treasury Index3.00

ICE BoAML 1-5 Year U.K. GiltAustralian Governments Index3.00

ICE BoAML U.S. High Yield Constrained Index2.50
ICE BoAML 1-5 Year Australian Governments Index2.50

S&P Leveraged Loan Total Return Index2.50
ICE BoAML 0-3 Month U.S. Treasury Bill Index2.00

ICE BoAML 1-5 Year Canada Government Index1.501.00

ICE BoAML 20+ Year Canada Government Index0.50

Total100.00%
COMMENT ON NON-GAAP FINANCIAL MEASURES

Throughout this filing, we present our operations in the way we believe will be the most meaningful and useful to investors, analysts, rating agencies and others who use our financial information in evaluating the performance of our company. This presentation includes the use of after-tax operating income available to Arch common shareholders, which is defined as net income available to Arch common shareholders, excluding net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other, loss on redemption
of preferred shares and income taxes, and the use of annualized operating return on average common equity. The presentation of after-tax operating income available to Arch common shareholders and annualized operating return on average common equity are non-GAAP financial measures as defined in Regulation G. The reconciliation of such measures to net income available to Arch common shareholders and annualized return on average common equity (the most directly comparable GAAP financial measures) in accordance with Regulation G is included under “Results of Operations” below. 
We believe that net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign
exchange gains or losses, transaction costs and other and loss on redemption of preferred shares in any particular period are not indicative of the performance of, or trends in, our business. Although net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method and net foreign exchange gains or losses are an integral part of our operations, the decision to realize investment gains or losses, the recognition of the change in the carrying value of investments accounted for using the fair value option in net realized gains or losses, the recognition of net impairment losses, the recognition of equity in net income or loss of investments accounted for using the equity method and the recognition of foreign exchange gains or losses are independent of the insurance underwriting process and result, in large part, from general economic and financial market conditions. Furthermore, certain users of our financial information believe that, for many companies, the timing of the realization of investment gains or losses is largely opportunistic. In addition, net impairment losses recognized in earnings on our investments represent other-than-temporary declines in expected recovery values on securities without actual realization. The use of the equity method on certain of our investments in certain funds that invest in fixed maturity securities is driven by the ownership structure of such funds (either limited partnerships or limited liability companies). In applying the equity method, these investments are initially recorded at cost and are subsequently adjusted based on our proportionate share of the net income or loss of the funds (which include changes in the market value of the underlying securities in the funds). This method of accounting is different from the way we account for our other fixed maturity securities and the timing of the recognition of equity in net income or loss of investments accounted for using the equity method may differ from gains or losses in the future upon sale or maturity of such investments. Transaction costs and other include advisory, financing, legal, severance, incentive compensation and other transaction costs related to acquisitions, including UGC. During the 2016 fourth quarter, transaction costs and other included non-recurring expenses related to a change in the our approach on the deferral of certain internal underwriting costs which are no longer being deferred.acquisitions. We believe that transaction costs and other, due to their non-recurring nature, are not indicative of the performance of, or trends in, our business performance. The loss on redemption of preferred


ARCH CAPITAL572019 FORM 10-K



shares related to the redemption of our Series C preferred shares in September 2017 and January 2018 and had no impact on shareholders' equity or cash flows. Due to these reasons, we exclude net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other and loss on redemption of preferred shares from the calculation of after-tax operating income available to Arch common shareholders. In addition, income tax expense for 2017 included a $21.5 million charge


ARCH CAPITAL582018 FORM 10-K



due to the revaluation of the Company’s net deferred tax asset resulting from the reduction in the U.S. corporate income tax rate from 35% to 21% effective January 1, 2018. Due to the non-recurring nature of this item, we excluded it from after-tax operating income available to Arch common shareholders.
We believe that showing net income available to Arch common shareholders exclusive of the items referred to above reflects the underlying fundamentals of our business since we evaluate the performance of and manage our business to produce an underwriting profit. In addition to presenting net income available to Arch common shareholders, we believe that this presentation enables investors and other users of our financial information to analyze our performance in a manner similar to how management analyzes performance. We also believe that this measure follows industry practice and, therefore, allows the users of financial information to compare our performance with our industry peer group. We believe that the equity analysts and certain rating agencies which follow us and the insurance industry as a whole generally exclude these items from their analyses for the same reasons.
Our segment information includes the presentation of consolidated underwriting income or loss and a subtotal of underwriting income or loss before the contribution from the ‘other’ segment. Such measures represent the pre-tax profitability of our underwriting operations and include net premiums earned plus other underwriting income, less losses and loss adjustment expenses, acquisition expenses and other operating expenses. Other operating expenses include those operating expenses that are incremental and/or directly attributable to our individual underwriting operations. Underwriting income or loss does not incorporate items included in our corporate (non-underwriting) segment. While these measures are presented in note 4, “Segment Information,” to our consolidated financial statements in Item 8, they are considered non-GAAP financial measures when presented elsewhere on a consolidated basis. The reconciliations of underwriting income or loss to income before income taxes (the most directly comparable GAAP financial measure) on a consolidated basis and a subtotal before the contribution from the ‘other’ segment, in accordance with Regulation G, is shown in note 4, “Segment Information,” to our consolidated financial statements in Item 8.
We measure segment performance for our three underwriting segments based on underwriting income or loss. We do not manage our assets by underwriting segment, with the exception of goodwill and intangible assets, and, accordingly, investment income and other non-underwriting related items are not allocated to each underwriting segment. For the ‘other’ segment, performance is measured based on net income or loss.

 
Along with consolidated underwriting income, we provide a subtotal of underwriting income or loss before the contribution from the ‘other’ segment. Pursuant to generally accepted accounting principles, Watford Re is considered a variable interest entity and we concluded that we are the primary beneficiary of Watford Re.Watford. As such, we consolidate the results of Watford Re in our consolidated financial statements, although we only own approximately 11%13% of Watford Re’sWatford’s common equity.equity as of December 31, 2019. Watford Re has its own management and board of directors that is responsible for its overallresults and profitability. In addition, we do not guarantee or provide credit support for Watford Re.Watford. Since Watford Re is an independent company, the assets of Watford Re can be used only to settle obligations of Watford Re and Watford Re is solely responsible for its own liabilities and commitments. Our financial exposure to Watford Re is limited to our investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from the reinsurance transactions. We believe that presenting certain information excluding the ‘other’ segment enables investors and other users of our financial information to analyze our performance in a manner similar to how our management analyzes performance.
Our presentation of segment information includes the use of a current year loss ratio which excludes favorable or adverse development in prior year loss reserves. This ratio is a non-GAAP financial measure as defined in Regulation G. The reconciliation of such measure to the loss ratio (the most directly comparable GAAP financial measure) in accordance with Regulation G is shown on the individual segment pages. Management utilizes the current year loss ratio in its analysis of the underwriting performance of each of our underwriting segments.
Total return on investments includes investment income, equity in net income or loss of investments accounted for using the equity method, net realized gains and losses and the change in unrealized gains and losses generated by Arch’s investment portfolio. Total return is calculated on a pre-tax basis and before investment expenses, excludes amounts reflected in the ‘other’ segment, and reflects the effect of financial market conditions along with foreign currency fluctuations. In addition, total return incorporates the timing of investment returns during the periods. There is no directly comparable GAAP financial measure for total return. Management uses total return on investments as a key measure of the return generated to Arch common shareholders on the capital held in the business, and compares the return generated by our investment portfolio against benchmark returns which we measured our portfolio against during the periods.




ARCH CAPITAL595820182019 FORM 10-K





RESULTS OF OPERATIONS

The following table summarizes our consolidated financial data, including a reconciliation of net income available to Arch common shareholders to after-tax operating income available to Arch common shareholders. Each line item reflects the impact of our approximate 11%percentage ownership of Watford Re’sWatford’s common equity.equity during such period.
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Net income available to Arch common shareholders$713,616
 $566,502
 $664,668
$1,594,707
 $713,616
Net realized (gains) losses297,755
 (148,836) (77,081)(353,013) 297,755
Net impairment losses recognized in earnings2,829
 7,138
 30,442
3,165
 2,829
Equity in net (income) loss of investments accounted for using the equity method(45,641) (142,286) (48,475)(123,672) (45,641)
Net foreign exchange (gains) losses(59,890) 113,613
 (31,987)10,732
 (59,890)
Transaction costs and other12,377
 22,150
 41,729
14,444
 12,377
Loss on redemption of preferred shares2,710
 6,735
 

 2,710
Income tax expense (benefit) (1)(14,566) 22,139
 (1,852)16,276
 (14,566)
After-tax operating income available to Arch common shareholders$909,190
 $447,155
 $577,444
$1,162,639
 $909,190
        
Beginning common shareholders’ equity$8,324,047
 $7,481,163
 $5,841,542
$8,659,827
 $8,324,047
Ending common
shareholders’ equity
8,659,827
 8,324,047
 7,481,163
10,717,371
 8,659,827
Average common shareholders’ equity (2)$8,491,937
 $7,902,605
 $6,113,718
$9,688,599
 $8,491,937
        
Annualized return on average common equity % (2)8.4
 7.2
 10.9
16.5
 8.4
Annualized operating return on average common equity % (2)10.7
 5.7
 9.4
12.0
 10.7
(1)Income tax on net realized gains or losses, net impairment losses recognized in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other and loss on redemption of preferred shares reflects the relative mix reported by jurisdiction and the varying tax rates in each jurisdiction.
(2)2016 period reflects the weighted impact of the $1.10 billion of convertible non-voting common equivalent preferred shares issued on December 31, 2016 as part of the UGC acquisition.


Results in all periods presented reflected the impact of current insurance and reinsurance market conditions and the impact of low interest yields on our investment portfolio.
Segment Information
We classify our businesses into three underwriting segments — insurance, reinsurance and mortgage — and two other operating segments — corporate (non-underwriting) and ‘other.’ Our insurance, reinsurance and mortgage segments each have managers who are responsible for the overall profitability of
their respective segments and who are directly accountable to our chief operating decision makers, the President and Chief Executive Officer of Arch Capital and the Chief Financial Officer of Arch Capital. The chief operating decision makers do not assess performance, measure return on equity or make resource allocation decisions on a line of business basis. Management measures segment performance for our three
underwriting segments based on underwriting income or loss. We do not manage our assets by underwriting segment, with the exception of goodwill and intangible assets, and, accordingly, investment income is not allocated to each underwriting segment.
We determined our reportable segments using the management approach described in accounting guidance regarding disclosures about segments of an enterprise and related information. The accounting policies of the segments are the same as those used for the preparation of our consolidated financial statements. Intersegment business is allocated to the segment accountable for the underwriting results.
Insurance Segment
The following tables set forth our insurance segment’s underwriting results:
 Year Ended December 31,
 2018 2017 % Change
Gross premiums written$3,262,332
 $3,081,086
 5.9
Premiums ceded(1,050,207) (958,646)  
Net premiums written2,212,125
 2,122,440
 4.2
Change in unearned premiums(6,464) (9,422)  
Net premiums earned2,205,661
 2,113,018
 4.4
Losses and loss adjustment expenses(1,520,680) (1,622,444)  
Acquisition expenses(349,702) (323,639)  
Other operating expenses(364,138) (359,524)  
Underwriting income (loss)$(28,859) $(192,589)  n/m
      
Underwriting Ratios    % Point Change
Loss ratio68.9% 76.8% (7.9)
Acquisition expense ratio15.9% 15.3% 0.6
Other operating expense ratio16.5% 17.0% (0.5)
Combined ratio101.3% 109.1% (7.8)

 Year Ended December 31,
 2019 2018 % Change
Gross premiums written$3,907,993
 $3,262,332
 19.8
Premiums ceded(1,266,267) (1,050,207)  
Net premiums written2,641,726
 2,212,125
 19.4
Change in unearned premiums(244,646) (6,464)  
Net premiums earned2,397,080
 2,205,661
 8.7
Losses and loss adjustment expenses(1,615,475) (1,520,680)  
Acquisition expenses(361,614) (349,702)  
Other operating expenses(454,770) (364,138)  
Underwriting income (loss)$(34,779) $(28,859)  n/m
      
Underwriting Ratios    % Point Change
Loss ratio67.4% 68.9% (1.5)
Acquisition expense ratio15.1% 15.9% (0.8)
Other operating expense ratio19.0% 16.5% 2.5
Combined ratio101.5% 101.3% 0.2

ARCH CAPITAL602018 FORM 10-K



 Year Ended December 31,
 2017 2016 % Change
Gross premiums written$3,081,086
 $3,027,049
 1.8
Premiums ceded(958,646) (954,768)  
Net premiums written2,122,440
 2,072,281
 2.4
Change in unearned premiums(9,422) 1,623
  
Net premiums earned2,113,018
 2,073,904
 1.9
Losses and loss adjustment expenses(1,622,444) (1,359,313)  
Acquisition expenses(323,639) (304,050)  
Other operating expenses(359,524) (350,260)  
Underwriting income$(192,589) $60,281
 (419.5)
      
Underwriting Ratios    % Point Change
Loss ratio76.8% 65.5% 11.3
Acquisition expense ratio15.3% 14.7% 0.6
Other operating expense ratio17.0% 16.9% 0.1
Combined ratio109.1% 97.1% 12.0
The insurance segment consists of our insurance underwriting units which offer specialty product lines on a worldwide basis. Product lines include:
•    Construction and national accounts: primary and excess casualty coveragesbasis, as described in note 4, “Segment Information,” to middle and large accountsour consolidated financial statements in the construction industry and a wide range of products for middle and large national accounts, specializing in loss sensitive primary casualty insurance programs (including large deductible, self-insured retention and retrospectively rated programs).Item 8.
•    Excess and surplus casualty: primary and excess casualty insurance coverages, including middle market energy business, and contract binding, which primarily provides casualty coverage through a network of appointed agents to small and medium risks.
•    Lenders products: collateral protection, debt cancellation and service contract reimbursement products to banks, credit unions, automotive dealerships and original equipment manufacturers and other specialty programs that pertain to automotive lending and leasing.
•    Professional lines: directors’ and officers’ liability, errors and omissions liability, employment practices liability, fiduciary liability, crime, professional indemnity and other financial related coverages for corporate, private equity, venture capital, real estate investment trust, limited partnership, financial institution and not-for-profit clients of all sizes and medical professional and general liability insurance coverages for the healthcare industry. The business is predominately written on a claims-made basis.
•    Programs: primarily package policies, underwriting workers’ compensation and umbrella liability business in support of desirable package programs, targeting program managers with unique expertise and niche products offering

general liability, commercial automobile, inland marine and property business with minimal catastrophe exposure.
•    Property, energy, marine and aviation: primary and excess general property insurance coverages, including catastrophe-exposed property coverage, for commercial clients. Coverages for marine include hull, war, specie and liability. Aviation and stand-alone terrorism are also offered.
•    Travel, accident and health: specialty travel and accident and related insurance products for individual, group travelers, travel agents and suppliers, as well as accident and health, which provides accident, disability and medical plan insurance coverages for employer groups, medical plan members, students and other participant groups.
ARCH CAPITAL592019 FORM 10-K
•    Other: includes alternative market risks (including captive insurance programs), excess workers’ compensation and employer’s liability insurance coverages for qualified self-insured groups, associations and trusts, and contract and commercial surety coverages, including contract bonds (payment and performance bonds) primarily for medium and large contractors and commercial surety bonds for Fortune 1000 companies and smaller transaction business programs.


Premiums Written.
The following tables set forth our insurance segment’s net premiums written by major line of business:
Year Ended December 31,Year Ended December 31,
2018 20172019 2018
Amount % Amount %Amount % Amount %
Professional lines$450,406
 20.4 $452,748
 21.3
Professional Lines$534,323
 20.2 $450,406
 20.4
Programs393,263
 17.8 386,618
 18.2426,535
 16.1 393,263
 17.8
Property, energy, marine and aviation368,120
 13.9 219,174
 9.9
Construction and national accounts320,937
 14.5 327,648
 15.4369,202
 14.0 320,937
 14.5
Travel, accident and health290,401
 13.1 247,738
 11.7305,170
 11.6 290,401
 13.1
Property, energy, marine and aviation219,174
 9.9 172,240
 8.1
Excess and surplus casualty168,467
 7.6 179,511
 8.5228,023
 8.6 168,467
 7.6
Lenders products96,094
 4.3 96,867
 4.6111,708
 4.2 96,094
 4.3
Other273,383
 12.4 259,070
 12.2298,645
 11.3 273,383
 12.4
Total$2,212,125
 100.0 $2,122,440
 100.0$2,641,726
 100.0 $2,212,125
 100.0
2018 versus 2017: Net premiums written by the insurance segment were 4.2%19.4% higher in 20182019 than in 2017. The increase2018. Approximately thirty percent of the growth in net premiums written reflected growth in travel, due to bothresulted from our new businesses acquired during 2019 or new business andinitiatives or product lines. The remaining growth in existing accounts, and in property, primarily due to new business and rate increases. These increases were partially offset by a reduction in contract binding and accident and health in response to market conditions.


ARCH CAPITAL612018 FORM 10-K



 Year Ended December 31,
 2017 2016
 Amount % Amount %
Professional lines$452,748
 21.3 $440,149
 21.2
Programs386,618
 18.2 330,322
 15.9
Construction and national accounts327,648
 15.4 328,997
 15.9
Travel, accident and health247,738
 11.7 224,380
 10.8
Property, energy, marine and aviation172,240
 8.1 175,376
 8.5
Excess and surplus casualty179,511
 8.5 214,863
 10.4
Lenders products96,867
 4.6 105,650
 5.1
Other259,070
 12.2 252,544
 12.2
Total$2,122,440
 100.0 $2,072,281
 100.0
2017 versus 2016: Net premiums written by the insurance segment were 2.4% higher in 2017 than in 2016. The increase in net premiums written reflected growth in programs, due to the continued effects of two newer programs, in travel, accident and health, reflecting both new travel business and continuedcame from expansion in existing travelproducts and accounts, and in professionalrate increases across most lines reflecting increases in small and medium sized accounts. Such amounts were partially offset by a reduction in excess and surplus casualty in response to market conditions.of business.
Net Premiums Earned.
The following tables set forth our insurance segment’s net premiums earned by major line of business:
 Year Ended December 31,
 2018 2017
 Amount % Amount %
Professional lines$458,425
 20.8 $444,137
 21.0
Programs389,186
 17.6 364,639
 17.3
Construction and national accounts322,440
 14.6 324,517
 15.4
Travel, accident and health297,147
 13.5 257,358
 12.2
Property, energy, marine and aviation205,069
 9.3 173,779
 8.2
Excess and surplus casualty172,424
 7.8 195,154
 9.2
Lenders products94,248
 4.3 97,043
 4.6
Other266,722
 12.1 256,391
 12.1
Total$2,205,661
 100.0 $2,113,018
 100.0
 Year Ended December 31,
 2019 2018
 Amount % Amount %
Professional Lines$499,224
 20.8 $458,425
 20.8
Programs414,103
 17.3 389,186
 17.6
Property, energy, marine and aviation298,966
 12.5 205,069
 9.3
Construction and national accounts325,687
 13.6 322,440
 14.6
Travel, accident and health305,085
 12.7 297,147
 13.5
Excess and surplus casualty200,615
 8.4 172,424
 7.8
Lenders products66,079
 2.8 94,248
 4.3
Other287,321
 12.0 266,722
 12.1
Total$2,397,080
 100.0 $2,205,661
 100.0

 
 Year Ended December 31,
 2017 2016
 Amount % Amount %
Professional lines$444,137
 21.0 $431,391
 20.8
Programs364,639
 17.3 357,715
 17.2
Construction and national accounts324,517
 15.4 322,072
 15.5
Travel, accident and health257,358
 12.2 219,169
 10.6
Property, energy, marine and aviation173,779
 8.2 188,938
 9.1
Excess and surplus casualty195,154
 9.2 219,046
 10.6
Lenders products97,043
 4.6 98,517
 4.8
Other256,391
 12.1 237,056
 11.4
Total$2,113,018
 100.0 $2,073,904
 100.0
Net premiums earned by the insurance segment were 4.4% higher in 2018 than in 2017, reflecting changes in net premiums written over the previous five quarters. Net premiums earned by the insurance segment were 1.9% higher in 2017 than in 2016.
Losses and Loss Adjustment Expenses.
The table below shows the components of the insurance segment’s loss ratio:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Current year70.0 % 77.2 % 67.1 %68.1 % 70.0 %
Prior period reserve development(1.1)% (0.4)% (1.6)%(0.7)% (1.1)%
Loss ratio68.9 % 76.8 % 65.5 %67.4 % 68.9 %
Current Year Loss Ratio.
2018 versus 2017: The insurance segment’s current year loss ratio was 7.21.9 points lower in 20182019 than in 2017.2018. The 20182019 loss ratio included 3.41.4 points of current year catastrophic event activity, primarily related to Hurricane Dorian, compared to 3.4 points in 2018, primarily related to Hurricanes Florence and Michael and the California wildfires, compared to 10.3 points in 2017, primarily related to Hurricanes Harvey, Irma and Maria and California wildfires. The balance of the change in the 20182019 loss ratio resulted, in part, from changes in mix of business and the level of large attritional losses.
2017 versus 2016: The insurance segment’s current year loss ratio was 10.1 points higher in 2017 than in 2016. The 2017 loss ratio included 10.3 points of current year catastrophic event activity, primarily related to Hurricanes Harvey, Irma and Maria and the California wildfires, compared to 2.2 points in 2016. The 2017 loss ratio also reflected changes in the level of attritional large losses and changes in the mix of business.
Prior Period Reserve Development.
The insurance segment’s net favorable development was $15.8 million, or 0.7 points, for 2019, compared to $24.4 million, or 1.1 points, for 2018, compared to $8.6 million, or


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0.4 points, for 2017, and $33.1 million, or 1.6 points, for 2016.2018. See note 5, “Reserve for Losses and Loss Adjustment Expenses,” to our consolidated financial statements in Item 8 for information about the insurance segment’s prior year reserve development.
Underwriting Expenses.
2018 versus 2017: The insurance segment’s underwriting expense ratio was 34.1% in 2019, compared to 32.4% in 2018, compared to 32.3%with the increase primarily resulting from our acquisitions in 2017. The comparison2019.


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2017 versus 2016:The insurance segment’s underwriting expense ratio was 32.3% in 2017, compared to 31.6% in 2016 reflecting changes in the level of reinsurance ceded on a quota share basis and changes in the mix of business.
Reinsurance Segment
The following tables set forth our reinsurance segment’s underwriting results:
 Year Ended December 31,
 2018 2017 % Change
Gross premiums written$1,912,522
 $1,640,399
 16.6
Premiums ceded(539,950) (465,925)  
Net premiums written1,372,572
 1,174,474
 16.9
Change in unearned premiums(111,356) (31,853)  
Net premiums earned1,261,216
 1,142,621
 10.4
Other underwriting income(682) 11,336
  
Losses and loss adjustment expenses(846,882) (773,923)  
Acquisition expenses(211,280) (221,250)  
Other operating expenses(133,350) (146,663)  
Underwriting income$69,022
 $12,121
 469.4
      
Underwriting Ratios    % Point Change
Loss ratio67.1% 67.7% (0.6)
Acquisition expense ratio16.8% 19.4% (2.6)
Other operating expense ratio10.6% 12.8% (2.2)
Combined ratio94.5% 99.9% (5.4)
 Year Ended December 31,
 2019 2018 % Change
Gross premiums written$2,323,223
 $1,912,522
 21.5
Premiums ceded(720,500) (539,950)  
Net premiums written1,602,723
 1,372,572
 16.8
Change in unearned premiums(136,334) (111,356)  
Net premiums earned1,466,389
 1,261,216
 16.3
Other underwriting income (loss)6,444
 (682)  
Losses and loss adjustment expenses(1,011,329) (846,882)  
Acquisition expenses(239,032) (211,280)  
Other operating expenses(141,484) (133,350)  
Underwriting income$80,988
 $69,022
 17.3
      
Underwriting Ratios    % Point Change
Loss ratio69.0% 67.1% 1.9
Acquisition expense ratio16.3% 16.8% (0.5)
Other operating expense ratio9.6% 10.6% (1.0)
Combined ratio94.9% 94.5% 0.4
 Year Ended December 31,
 2017 2016 % Change
Gross premiums written$1,640,399
 $1,494,397
 9.8
Premiums ceded(465,925) (440,541)  
Net premiums written1,174,474
 1,053,856
 11.4
Change in unearned premiums(31,853) 2,376
  
Net premiums earned1,142,621
 1,056,232
 8.2
Other underwriting income11,336
 36,403
  
Losses and loss adjustment expenses(773,923) (475,762)  
Acquisition expenses(221,250) (212,258)  
Other operating expenses(146,663) (142,616)  
Underwriting income$12,121
 $261,999
 (95.4)
      
Underwriting Ratios    % Point Change
Loss ratio67.7% 45.0% 22.7
Acquisition expense ratio19.4% 20.1% (0.7)
Other operating expense ratio12.8% 13.5% (0.7)
Combined ratio99.9% 78.6% 21.3

The reinsurance segment consists of our reinsurance underwriting units which offer specialty product lines on a worldwide basis. Product lines include:basis, as described in note 4, “Segment Information,” to our consolidated financial statements in Item 8.

Casualty: provides coverage to ceding company clients on third party liability and workers’ compensation exposures from ceding company clients, primarily on a treaty basis. Exposures include, among others, executive assurance, professional liability, workers’ compensation, excess and umbrella liability, excess motor and healthcare business.
Marine and aviation: provides coverage for energy, hull, cargo, specie, liability and transit, and aviation business, including airline and general aviation risks. Business written may also include space business, which includes coverages for satellite assembly, launch and operation for commercial space programs.
Other specialty: provides coverage to ceding company clients for proportional motor and other lines, including surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and political risk.
Property catastrophe: provides protection for most catastrophic losses that are covered in the underlying policies written by reinsureds, including hurricane, earthquake, flood, tornado, hail and fire, and coverage for other perils on a case-by-case basis. Property catastrophe reinsurance provides coverage on an excess of loss basis when aggregate losses and loss adjustment expense from a single occurrence or aggregation of losses from a covered peril exceed the retention specified in the contract.
Property excluding property catastrophe: provides coverage for both personal lines and commercial property exposures and principally covers buildings, structures, equipment and contents. The primary perils in this business include fire, explosion, collapse, riot, vandalism, wind, tornado,


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flood and earthquake. Business is assumed on both a proportional and excess of loss basis. In addition, facultative business is written which focuses on individual commercial property risks on an excess of loss basis.
Other: includes life reinsurance business on both a proportional and non-proportional basis, casualty clash business and, in limited instances, non-traditional business which is intended to provide insurers with risk management solutions that complement traditional reinsurance.
Premiums Written.
The following tables set forth our reinsurance segment’s net premiums written by major line of business:
Year Ended December 31,Year Ended December 31,
2018 20172019 2018
Amount % Amount %Amount % Amount %
Other specialty$507,971
 37.0 $459,213
 39.1$466,977
 29.1 $507,971
 37.0
Casualty400,178
 29.2 340,429
 29.0510,374
 31.8 400,178
 29.2
Property excluding property catastrophe310,293
 22.6 243,693
 20.7403,320
 25.2 310,293
 22.6
Property catastrophe79,624
 5.8 70,155
 6.0110,643
 6.9 79,624
 5.8
Marine and aviation38,013
 2.8 32,759
 2.853,679
 3.3 38,013
 2.8
Other36,493
 2.7 28,225
 2.457,730
 3.6 36,493
 2.7
Total$1,372,572
 100.0 $1,174,474
 100.0$1,602,723
 100.0 $1,372,572
 100.0
       
Pro rata$782,268
 57.0 $708,694
 60.3
Excess of loss590,304
 43.0 465,780
 39.7
Total$1,372,572
 100.0 $1,174,474
 100.0
2018 versus 2017: Gross premiums written by the reinsurance segment in 20182019 were 16.6%21.5% higher than in 2017,2018, while net premiums written were 16.9%16.8% higher than in 2017.2018. The increasegrowth in gross premiums written primarily reflected new business opportunities in casualty and property lines, partially offset by a decline in other specialty business, driven by reductions in motor and agriculture business. The growth in net premiums written reflectedis less than the growth in casualty lines andgross premiums written because a high proportion of the property lines, primarily duebusiness is subject to new business and rate increases, and in other specialty, primarily due to new international motor contracts. retrocessions.
Net premiums written in 2018 also included a higher level of reinstatement premiums, of $4.0 million, primarily for Hurricanes Florence and Michael, Typhoon Jebi, California wildfires and adjustments for otherdue to 2018 catastrophic events, compared to $15.9 million in 2017 for Hurricanes Harvey, Irma, Maria, as well as premium adjustments for other events.
on a multi-year casualty contract.
 Year Ended December 31,
 2017 2016
 Amount % Amount %
Other specialty$459,213
 39.1 $348,852
 33.1
Casualty340,429
 29.0 305,252
 29.0
Property excluding property catastrophe243,693
 20.7 267,548
 25.4
Property catastrophe70,155
 6.0 75,789
 7.2
Marine and aviation32,759
 2.8 37,790
 3.6
Other28,225
 2.4 18,625
 1.8
Total$1,174,474
 100.0 $1,053,856
 100.0
        
Pro rata$708,694
 60.3 $558,671
 53.0
Excess of loss465,780
 39.7 495,185
 47.0
Total$1,174,474
 100.0 $1,053,856
 100.0
2017 versus 2016: Gross premiums written by the reinsurance segment in 2017 were 9.8% higher than in 2016, while net premiums written were 11.4% higher than in 2016. Premiums written reflected growth in other specialty business, primarily in international motor quota share contracts, and in casualty business, primarily due to a $45.4 million retroactive reinsurance contract which was substantially earned in the period and resulted in a corresponding increase to losses and loss adjustment expenses. Net premiums written in 2017 included reinstatement premiums of $15.9 million for Hurricanes Harvey, Irma and Maria. Such amounts were partially offset by a reduction in property excluding property catastrophe business, primarily related to a targeted reduction in onshore energy writings.
Net Premiums Earned.
The following tables set forth our reinsurance segment’s net premiums earned by major line of business:
 Year Ended December 31,
 2018 2017
 Amount % Amount %
Other specialty$474,568
 37.6 $408,566
 35.8
Casualty347,034
 27.5 341,122
 29.9
Property excluding property catastrophe287,788
 22.8 255,453
 22.4
Property catastrophe75,249
 6.0 73,300
 6.4
Marine and aviation39,238
 3.1 36,214
 3.2
Other37,339
 3.0 27,966
 2.4
Total$1,261,216
 100.0 $1,142,621
 100.0
        
Pro rata$719,860
 57.1 $657,490
 57.5
Excess of loss541,356
 42.9 485,131
 42.5
Total$1,261,216
 100.0 $1,142,621
 100.0


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Year Ended December 31,Year Ended December 31,
2017 20162019 2018
Amount % Amount %Amount % Amount %
Other specialty$408,566
 35.8 $329,994
 31.2$478,517
 32.6 $474,568
 37.6
Casualty341,122
 29.9 300,160
 28.4429,288
 29.3 347,034
 27.5
Property excluding property catastrophe255,453
 22.4 282,018
 26.7362,841
 24.7 287,788
 22.8
Property catastrophe73,300
 6.4 73,803
 7.090,934
 6.2 75,249
 6.0
Marine and aviation36,214
 3.2 52,579
 5.048,274
 3.3 39,238
 3.1
Other27,966
 2.4 17,678
 1.756,535
 3.9 37,339
 3.0
Total$1,142,621
 100.0 $1,056,232
 100.0$1,466,389
 100.0 $1,261,216
 100.0
       
Pro rata$657,490
 57.5 $561,986
 53.2
Excess of loss485,131
 42.5 494,246
 46.8
Total$1,142,621
 100.0 $1,056,232
 100.0
Net premiums earned in 20182019 were 10.4%16.3% higher than in 2017,2018, reflecting changes in net premiums written over the previous five quarters, including the mix and type of business written. Net premiums earned in 2017 were 8.2% higher than in 2016.
Other Underwriting Income (Loss).
Other underwriting lossincome in 20182019 was $0.7$6.4 million, compared to other underwriting incomeloss of $11.3$0.7 million in 2017 and $36.4 million in 2016. The 2016 period included $19.1 million related to a contract which was commuted during the 2016 second quarter. This contract had been reflected as a deposit accounting liability (i.e., a contract that, in accordance with GAAP, does not pass risk transfer) prior to the commutation.2018.
Losses and Loss Adjustment Expenses.
The table below shows the components of the reinsurance segment’s loss ratio:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Current year78.1 % 82.2 % 65.7 %72.2 % 78.1 %
Prior period reserve development(11.0)% (14.5)% (20.7)%(3.2)% (11.0)%
Loss ratio67.1 % 67.7 % 45.0 %69.0 % 67.1 %
Current Year Loss Ratio.
2018 versus 2017: The reinsurance segment’s current year loss ratio was 4.15.9 points lower in 20182019 than in 2017.2018. The 20182019 loss ratio included 10.15.7 points for current year catastrophic event activity, primarily related to Hurricane Dorian and Typhoons Hagibis and Faxai, compared to 10.1 points in 2018, primarily related to Hurricanes Florence and Michael, Typhoon Jebi and the California wildfires, compared to 16.0 points in 2017, primarily related to Hurricanes Harvey, Irma and Maria and the California wildfires. Thewildfires.The 2018 loss ratio includes the impact of a large attritional casualty loss arising from the California wildfires that increased the 2018 loss ratio by 1.7 points. The balance of the change in the 20182019 current year loss ratio resulted, in part, from the effects of market conditions and changes in the mix of business.

2017 versus 2016: The reinsurance segment’s current year loss ratio was 16.5 points higher in 2017 than in 2016. The 2017 loss ratio included 16.0 points for current year catastrophic event activity, primarily related to Hurricanes Harvey, Irma and Maria and the California wildfires, compared to 4.1 points in 2016. In addition, the loss ratio for 2017 reflects the impact
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Table of the retroactive reinsurance contract noted above (net premiums earned at a high loss ratio), which increased the current year loss ratio by 1.3 points. The balance of the change in the 2017 current year loss ratio resulted, in part, from the effects of market conditions and changes in the mix of business.Contents

Prior Period Reserve Development.
The reinsurance segment’s net favorable development was $46.4 million, or 3.2 points, for 2019, compared to $138.5 million, or 11.0 points, for 2018, compared to $165.4 million, or 14.5 points, for 2017, and $218.8 million, or 20.7 points, for 2016. See note 5, “Reserve for Losses and Loss Adjustment Expenses,” to our consolidated financial statements in Item 8 for information about the reinsurance segment’s prior year reserve development.
Underwriting Expenses.
2018 versus 2017: The underwriting expense ratio for the reinsurance segment was 25.9% in 2019, compared to 27.4% in 2018, compared to 32.2%reflecting growth in 2017, reflecting lower operating expenses of $13.3 million due to lower performance based compensation costs, a reduction of 1.1 points in the expense ratio. In addition, federal excise taxes decreased by $19.7 million, a reduction of 1.6 points in the expense ratio, due to the non-renewal of certain reinsurance agreements between our U.S. based insurancenet premiums earned and reinsurance subsidiaries and Arch Re Bermuda on a cutoff basis as of January 1, 2018 and the impact of a loss portfolio transfer in 2017. The remainder of the change was due to changes in the mix and type of business.
2017 versus 2016: The underwriting expense ratio for the reinsurance segment was 32.2% in 2017, compared to 33.6% in 2016. Due to intercompany loss portfolio transfers effective on December 31, 2017 that transferred $1.36 billion of net retained reserves for losses and allocated loss adjustment expenses between subsidiaries, the reinsurance segment’s 2017 acquisition expense ratio reflected 1.2 points of federal excise taxes in connection with such activity.
Mortgage Segment
Our mortgage operations include U.S. and international mortgage insurance and reinsurance operations as well as participation in GSE credit risk-sharing transactions. Our mortgage group includes direct mortgage insurance in the U.S. primarily through Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company (together, “Arch MI U.S.”); mortgage reinsurance through Arch Re Bermuda to mortgage insurers on both a proportional and non-


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proportionalnon-proportional basis globally; direct mortgage insurance in Europe through Arch MI EuropeInsurance (EU) and in Hong Kong through Arch MI Asia; and participation in various GSE credit risk-sharing products primarily through Arch Re Bermuda.
The following tables set forth our mortgage segment’s underwriting results. On December 31, 2016, we completed the acquisition of UGC. As such, the 2018 and 2017 results reflect the combination of Arch and UGC while the 2016 results do not reflect UGC activity.
 Year Ended December 31,
 2019 2018 % Change
Gross premiums written$1,466,265
 $1,360,708
 7.8
Premiums ceded(204,509) (202,833)  
Net premiums written1,261,756
 1,157,875
 9.0
Change in unearned premiums104,584
 28,361
  
Net premiums earned1,366,340
 1,186,236
 15.2
Other underwriting income16,005
 13,033
  
Losses and loss adjustment expenses(53,513) (81,289)  
Acquisition expenses(134,319) (118,595)  
Other operating expenses(153,092) (142,432)  
Underwriting income$1,041,421
 $856,953
 21.5
      
Underwriting Ratios    % Point Change
Loss ratio3.9% 6.9% (3.0)
Acquisition expense ratio9.8% 10.0% (0.2)
Other operating expense ratio11.2% 12.0% (0.8)
Combined ratio24.9% 28.9% (4.0)
 Year Ended December 31,
 2018 2017 % Change
Gross premiums written$1,360,708
 $1,368,138
 (0.5)
Premiums ceded(202,833) (256,796)  
Net premiums written1,157,875
 1,111,342
 4.2
Change in unearned premiums28,361
 (54,176)  
Net premiums earned1,186,236
 1,057,166
 12.2
Other underwriting income13,033
 15,737
  
Losses and loss adjustment expenses(81,289) (134,677)  
Acquisition expenses(118,595) (100,598)  
Other operating expenses(142,432) (146,336)  
Underwriting income$856,953
 $691,292
 24.0
      
Underwriting Ratios    % Point Change
Loss ratio6.9% 12.7% (5.8)
Acquisition expense ratio10.0% 9.5% 0.5
Other operating expense ratio12.0% 13.8% (1.8)
Combined ratio28.9% 36.0% (7.1)
 Year Ended December 31,
 2017 2016 % Change
Gross premiums written$1,368,138
 $499,725
 173.8
Premiums ceded(256,796) (108,259)  
Net premiums written1,111,342
 391,466
 183.9
Change in unearned premiums(54,176) (104,750)  
Net premiums earned1,057,166
 286,716
 268.7
Other underwriting income15,737
 17,024
  
Losses and loss adjustment expenses(134,677) (28,943)  
Acquisition expenses(100,598) (21,790)  
Other operating expenses(146,336) (96,672)  
Underwriting income$691,292
 $156,335
 342.2
      
Underwriting Ratios    % Point Change
Loss ratio12.7% 10.1% 2.6
Acquisition expense ratio9.5% 7.6% 1.9
Other operating expense ratio13.8% 33.7% (19.9)
Combined ratio36.0% 51.4% (15.4)

 
Premiums Written.
The following table sets forth our mortgage segment’s net premiums written by client location and underwriting location (i.e., where the business is underwritten):
Year Ended December 31,Year Ended December 31,
2018 2017 2016
Net premiums written by client location     
United States$1,051,375
 $1,005,437
 $280,509
Other106,500
 105,905
 110,957
Total$1,157,875
 $1,111,342
 $391,466
     2019 2018
Net premiums written by underwriting location        
United States$948,323
 $903,329
 $186,826
$1,032,868
 $948,323
Other209,552
 208,013
 204,640
228,888
 209,552
Total$1,157,875
 $1,111,342
 $391,466
$1,261,756
 $1,157,875
2018 versus 2017: Gross premiums written by the mortgage segment in 20182019 were 0.5% lower7.8% higher than in 2017. The reduction in gross premiums written primarily reflected a lower level of Australian mortgage reinsurance business partially offset by higher U.S. premiums due to insurance in force growth.2018. Net premiums written for 20182019 were 4.2%9.0% higher than in the 20172018 period and reflected lower ceded premiums on the quota share agreement with AIG that continuesan increase in monthly premium business due to run-off, partially offset by higher ceded premiums related to Bellemeade transactionsgrowth in 2018. The 2017 period also reflected higher retrocessions of Australian mortgage reinsurance business.insurance in force. The persistency rate of the primary portfolio of mortgage loans of Arch MI U.S. was 75.7% at December 31, 2019 compared to 81.5% at December 31, 2018 compared to 81.8% at December 31, 2017.2018. The persistency rate represents the percentage of mortgage insurance in force at the beginning of a 12-month period that remains in force at the end of such period.
2017 versus 2016: Gross premiums written by the mortgage segment in 2017 were 173.8% higher than in 2016, while net premiums written increased 183.9%, primarily reflecting growth in insurance in force due to the acquisition of UGC,
Arch MI U.S. generated $69.5 billion of new insurance written (“NIW”) during 2018 compared to $62.0 billion during 2017. NIW represents the original principal balance of all loans that received coverage during the period.


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Net Premiums Earned.
The following table sets forth our mortgage segment’s net premiums earned by client location and underwriting location (i.e., where the business is underwritten):
Year Ended December 31,Year Ended December 31,
2018 2017 2016
Net premiums earned by client location     
United States$1,116,007
 $1,014,439
 $265,527
Other70,229
 42,727
 21,189
Total$1,186,236
 $1,057,166
 $286,716
     2019 2018
Net premiums earned by underwriting location        
United States$1,009,765
 $901,858
 $155,929
$1,134,849
 $1,009,765
Other176,471
 155,308
 130,787
231,491
 176,471
Total$1,186,236
 $1,057,166
 $286,716
$1,366,340
 $1,186,236
Net premiums earned for 20182019 were 12.2%15.2% higher than in 2017, primarily due to2018. The increase in net premiums earned reflected the growth in insurance in force for Arch MIin the U.S. Growth from 2016over the last twelve months combined with higher single premium earned as a result of policy terminations due to 2017 primarily reflected the impact of the acquisition of UGC, which occurred as of December 31, 2016.mortgage refinance activity.
Other Underwriting Income.
Other underwriting income, which is primarily related to GSE risk-sharing transactions receiving derivative accounting treatment, was $16.0 million for 2019, compared to $13.0 million for 2018, compared to $15.7 million for 2017 and $17.0 million for 2016.2018.


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Losses and Loss Adjustment Expenses.
The table below shows the components of the mortgage segment’s loss ratio:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Current year16.0 % 21.7 % 17.5 %13.1 % 16.0 %
Prior period reserve development(9.1)% (9.0)% (7.4)%(9.2)% (9.1)%
Loss ratio6.9 % 12.7 % 10.1 %3.9 % 6.9 %
Unlike property and casualty business for which we estimate ultimate losses on premiums earned, losses on mortgage insurance business are only recorded at the time a borrower is delinquent on their mortgage, in accordance with primary mortgage insurance industry practice. Because our primary mortgage insurance reserving process does not take into account the impact of future losses from loans that are not delinquent, mortgage insurance loss reserves are not an estimate of ultimate losses. In addition to establishing loss reserves for delinquent loans, under GAAP, we are required to establish a premium deficiency reserve for our mortgage insurance products if the amount of expected future losses and maintenance costs exceeds expected future premiums, existing
reserves and the anticipated investment income for such product. We assess the need for a premium deficiency reserve on a quarterly basis and perform a full analysis annually. No such reserve was established during 2018, 2017 or 2016.2019 and 2018.
Current Year Loss Ratio.
2018 versus 2017: The mortgage segment’s current year loss ratio was 5.72.9 points lower in 20182019 compared to 2017.2018. The current year loss ratio for 20182019 reflects the current favorable macroeconomic environment as the percentage of loans in default on first lien business decreased from 2.23% at December 31, 2017 to 1.60% at December 31, 2018. In addition, the loss ratio for 2017 was slightly impacted by delinquencies emanating from new notices from areas impacted by the 2017 third quarter hurricanes that subsequently cured during 2018.
2017 versus 2016: The mortgage segment’s current year loss ratio was 4.2 points higher in 2017 compared2018 to 2016. The current year loss ratio for 2017 reflects changes in the mix of business due to the UGC acquisition when compared to 2016, and the minor impact of delinquencies emanating from new notices from areas impacted by the 2017 third quarter hurricanes.1.54% at December 31, 2019.
We insure mortgages for homes in areas that have been impacted by catastrophic events, including 2018 events such as Hurricanes Florence and Michael and the California wildfires, and 2017 events such as Hurricanes Harvey and Irma.wildfires. Generally, mortgage insurance losses occur only when a credit event occurs and, following a physical damage event, when the home is restored to pre-storm condition. Our ultimate claims exposure will depend on the number of delinquency notices received and the ultimate claim rate related to such notices. In the event of natural disasters, cure rates are influenced by the adequacy of homeowners and flood insurance carried on a related property, and a borrower's access to aid from government entities and private organizations, in addition to other factors which generally impact cure rates in unaffected areas.
Prior Period Reserve Development.
The mortgage segment’s net favorable development was $125.2 million, or 9.2 points, for 2019, compared to $107.6 million, or 9.1 points, for 2018, compared to $95.0 million, or 9.0 points, for 2017, and $21.2 million, or 7.4 points, for 2016. The 2017 increase in net favorable development was primarily on the acquired UGC reserves.2018. See note 5, “Reserve for Losses and Loss Adjustment Expenses,” to our consolidated financial statements in Item 8 for information about the mortgage segment’s prior year reserve development.
Underwriting Expenses.
2018 versus 2017:The underwriting expense ratio for the mortgage segment was 21.0% for 2019, compared to 22.0% for 2018, compared to 23.3% for 2017, reflecting the increase in net premiums earned combined


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with a $3.9 million decrease in other operating expenses due to expense savings from integration efforts. This decrease was partially offset by a higher level of acquisition expenses, due to higher NIW.
2017 versus 2016:2018. The underwriting expenselower ratio for the mortgage segment was 23.3% for 2017, compared to 41.3% for 2016. The decrease in the underwriting expense ratio2019 period primarily reflectsresulted from the higher level of net premiums earned from the impact of the UGC acquisition.earned.
Corporate (Non-Underwriting) Segment
The corporate (non-underwriting) segment results include net investment income, other income (loss), corporate expenses, transaction costs and other, amortization of intangible assets, interest expense, items related to our non-cumulative preferred shares, net realized gains or losses, net impairment losses included in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses and income taxes. Such amounts exclude the results of the ‘other’ segment.
Net Investment Income.
The components of net investment income were derived from the following sources:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Fixed maturities$403,449
 $336,894
 $242,310
$440,824
 $403,449
Equity securities12,650
 12,703
 13,823
13,455
 12,650
Short-term investments17,802
 9,343
 3,619
14,642
 17,802
Other (1)70,946
 79,789
 66,300
86,440
 70,946
Gross investment income504,847
 438,729
 326,052
555,361
 504,847
Investment expenses (2)(66,889) (56,657) (48,859)(64,294) (66,889)
Net investment income$437,958
 $382,072
 $277,193
$491,067
 $437,958
(1)Amounts include dividends and other distributions on investment funds, term loan investments, funds held balances, cash balances and other.
(2)Investment expenses were approximately 0.36%0.33% of average invested assets for 2018,2019, compared to 0.30%0.36% for 2017 and 0.34% for 2016.2018.


The pre-tax investment income yield was 2.52% for 2019, compared to 2.36% for 2018, compared to 2.06% for 2017 and 1.92% for 2016.2018. The higher level of net investment income for 20182019 compared to 2017 and 20162018 reflected an increase in the embedded book yield on fixed income securities, partially offset by a higher level of expenses.Theincome on fund investments and the reinvestment of fixed income securities at slightly higher available yields and the shift from municipal bonds to corporates. The pre-tax investment income yields were calculated based on amortized cost. Yields on future investment income may vary based on financial market conditions, investment allocation decisions and other factors.


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Corporate Expenses.
Corporate expenses were $65.7 million for 2019, compared to $58.6 million for 2018, compared to $61.6 million for 2017 and $49.4 million for 2016.2018. Such amounts primarily represent certain holding company costs
necessary to support our worldwide insurance and reinsurance operations and costs associated with operating as a publicly traded company. The lowerhigher level of corporate expenses in 20182019 compared to 2017 and 20162018 was primarily due to lowerhigher incentive compensation costs.
Transaction Costs and Other.
Transaction costs and other were $14.4 million for 2019, compared to $11.4 million for 2018, compared2018. Amounts for 2019 were primarily attributable to $22.2 million for 2017 and $41.7 million for 2016. Amountsour 2019 acquisitions, while amounts for 2018 were primarily attributable to the write off of intangible assets related to insurance licenses for a subsidiary of UGC which was merged with another subsidiary. For 2017, transaction costs and other primarily related to severance and severance related costs related to the UGC acquisition. For 2016, transaction costs and other included $32.3 million of non-recurring costs such as advisory, financing and legal related to the UGC acquisition.
Amortization of Intangible Assets.
Amortization of intangible assets for 20182019 was $105.7$82.1 million, compared to $125.8$105.7 million for 2017 and $19.3 million for 2016.2018 . Amounts in 20182019 and 20172018 primarily related to amortization of finite-lived intangible assets related to the UGCour 2016 acquisition.
Interest Expense.
Interest expense was $93.7 million for 2019, compared to $101.0 million for 2018, compared to $103.6 million for 2017 and $53.5 million for 2016.2018. Interest expense reflects amounts related to our outstanding senior notes, revolving credit agreement borrowings and other. We issued $950.0 million of senior notes in December 2016 in connection with the UGC acquisition and borrowed $400.0 million on our revolving credit agreement, resulting in higher borrowing costs in 2017 when compared to 2016. We repaid $375 million and $125 million of our revolving credit agreement borrowings during 2018 and 2017, respectively, resulting in lower borrowing costs for 2018 than in 2017.2019.
Loss on Redemption of Preferred Shares.
In September 2017, we redeemed $230 million of 6.75% Series C preferred shares and, in accordance with GAAP, recorded a loss of $6.7 million to remove original issuance costs related to the redeemed shares from additional paid-in capital. In January 2018, we redeemed the remaining $92.3 million of 6.75% Series C preferred shares outstanding and recorded a loss of $2.7 million. Such adjustments had no impact on total shareholders’ equity or cash flows.
Net Realized Gains (Losses).
We recorded net realized lossgains of $351.2 million for 2019, compared to net realized losses of $284.4 million for 2018, compared to net realized gains of $148.8 million for 2017 and net realized gains of $69.6 million for 2016.2018. Currently, our


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portfolio is actively managed to maximize total return within certain guidelines. The effect of financial market movements on the investment portfolio will directly impact net realized gains and losses as the portfolio is adjusted and rebalanced. Net realized gains or losses from the sale of fixed maturities primarily results from our decisions to reduce credit exposure, to change duration targets, to rebalance our portfolios or due to relative value determinations. Net realized gains or losses also includes realized and unrealized contract gains and losses on our derivative instruments, changes in the fair value of assets and liabilities accounted for using the fair value option
along with re-measurement of contingent consideration liability amounts.
Net Impairment Losses Recognized in Earnings.
For 2018,2019, we recorded $2.8$3.2 million of credit related impairments in earnings, compared to $7.1$2.8 million in 2017 and $30.4 million in 2016. The impairment losses recorded in 2018 were primarily related to foreign currency. The impairment losses recorded in 2017 were primarily related to foreign currency and the liquidation of one portfolio, while the 2016 period included reductions on two asset backed securities based on information received from external investment managers and a review of cash flow projections in order to determine expected recovery values.2018. See note 8, “Investment Information—Other-Than-Temporary Impairments,” to our consolidated financial statements in Item 8 for additional information.
Equity in Net Income (Loss) of Investments Accounted for Using the Equity Method.
We recorded $45.6$123.7 million of equity in net income related to investments accounted for using the equity method for 2018,2019, compared to $142.3$45.6 million for 2017 and $48.5 million for 2016. The 2017 results reflected strong returns on funds invested in global equities and other strategies.2018. Investments accounted for using the equity method totaled $1.66 billion at December 31, 2019, compared to $1.49 billion at December 31, 2018, compared to $1.04 billion at December 31, 2017.2018. See note 8, “Investments—“Investment Information—Equity in Net Income (Loss) of Investments Accounted For Using the Equity Method,” to our consolidated financial statements in Item 8 for additional information.
Net Foreign Exchange Gains or Losses.
Net foreign exchange gainslosses for 20182019 were $58.7$9.3 million, compared to net foreign exchange losses for 2017 of $113.3 million and net foreign exchange gains for 20162018 of $31.4$58.7 million. Amounts in such periods were primarily unrealized and resulted from the effects of revaluing our net insurance liabilities required to be settled in foreign currencies at each balance sheet date.
Income Tax Expense.
Our income tax provision on income before income taxes resulted in an expense of 13.1%8.7% for 2018,2019, compared to an expense of 17.1%13.1% for 2017 and an expense of 4.3% for 2016.2018. Our effective tax rate fluctuates from year to year consistent with the relative mix of income or loss reported by jurisdiction and the varying tax rates in each jurisdiction. Income tax expense for 2017 included a net $8.1 million charge due to the revaluation of our net U.S. deferred tax asset resulting from the reduction in the U.S. corporate income tax rate from 35% to 21% effective January 1, 2018.
See note 14, “Income Taxes,” to our consolidated financial statements in Item 8 for a reconciliation of the difference between the provision for income taxes and the expected tax provision at the weighted average statutory tax rate for 2018, 20172019 and 2016.2018.
Other Segment
The ‘other’ segment includes the results of Watford Re.Watford. Pursuant to generally accepted accounting principles (“GAAP”), Watford Re is considered a variable interest entity and we concluded that we are the primary beneficiary of Watford Re.Watford. As such, we consolidate the results of Watford Re in our consolidated financial statements, although we only own approximately 11%13% of Watford Re’sWatford’s common equity.equity as of December 31, 2019. See note


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11, “Variable Interest Entity and Noncontrolling Interests,” and note 4, “Segment Information,” to our consolidated financial statements in Item 8 for additional information.
CRITICAL ACCOUNTING POLICIES, ESTIMATES AND RECENT ACCOUNTING PRONOUNCEMENTS
The preparation of consolidated financial statements in accordance with GAAP requires us to make many estimates and judgments that affect the reported amounts of assets, liabilities (including reserves), revenues and expenses, and related disclosures of contingent liabilities. On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, insurance and other reserves, reinsurance recoverables, allowance for doubtful accounts, investment valuations, goodwill and intangible assets, bad debts, income taxes, contingencies and litigation. We base our estimates on historical experience, where possible, and on various other assumptions that we believe to be reasonable under the circumstances, which form the basis for our judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Estimates and judgments for a relatively new insurance and reinsurance company, like our company, are even more difficult to make than those made in a mature company since relatively limited historical information has been reported to us through December 31, 2018. Actual results will differ from these estimates and such differences may be material. We believe that the following


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critical accounting policies affect significant estimates used in the preparation of our consolidated financial statements.
Reserves for Losses and
Loss Adjustment ExpensesReserves
We are required by applicable insurance laws and regulations and GAAP to establish reserves for losses and loss adjustment expenses, or Loss Reserves, that arise from the business we underwrite. Loss Reserves for our insurance, reinsurance and mortgage operations are balance sheet liabilities representing estimates of future amounts required to pay losses and loss adjustment expenses for insured or reinsured events which have occurred at or before the balance sheet date. Loss Reserves do not reflect contingency reserve allowances to account for future loss occurrences. Losses arising from future events will be estimated and recognized at the time the losses are incurred and could be substantial.
See note 6, “Short Duration Contracts,” to our consolidated financial statements in Item 8 for additional information on our reserving process.
At December 31, 20182019 and 2017,2018, our Loss Reserves, net of unpaid losses and loss adjustment expenses recoverable, by type and by operating segment were as follows:
December 31,December 31,
2018 20172019 2018
Insurance segment:      
Case reserves$1,489,644
 $1,648,910
$1,601,627
 $1,489,644
IBNR reserves3,266,796 3,272,3513,403,051 3,266,796
Total net reserves4,756,440
 4,921,261
5,004,678
 4,756,440
Reinsurance segment:      
Case reserves1,082,917
 1,033,413
1,273,523
 1,082,917
Additional case reserves191,002 158,377166,251 191,002
IBNR reserves1,578,907 1,499,9621,835,993 1,578,907
Total net reserves2,852,826
 2,691,752
3,275,767
 2,852,826
Mortgage segment:      
Case reserves355,606
 443,069
266,030
 355,606
IBNR reserves122,304 104,169157,712 122,304
Total net reserves (1)477,910
 547,238
423,742
 477,910
Other segment:      
Case reserves364,052
 260,876
478,036
 364,052
Additional case reserves36,512
 32,587
29,059
 36,512
IBNR reserves551,266
 465,168
597,910
 551,266
Total net reserves951,830
 758,631
1,105,005
 951,830
Total:      
Case reserves3,292,219
 3,386,268
3,619,216
 3,292,219
Additional case reserves227,514 190,964195,310 227,514
IBNR reserves5,519,273 5,341,6505,994,666 5,519,273
Total net reserves$9,039,006
 $8,918,882
$9,809,192
 $9,039,006
(1)At December 31, 2019, total net reserves include $278.7 million from U.S. primary mortgage insurance business, of which 57.8% represents policy years 2009 and prior and the remainder from later policy years. At December 31, 2018, total net reserves include $375.8 million from U.S. primary mortgage insurance business, of which 72.8%73.4% represents policy years 2008 and prior and the remainder from later policy years. At December 31, 2017, total net reserves include $477.1 million from U.S. primary mortgage insurance business, of which 79.8% represents policy years 20082009 and prior and the remainder from later policy years.


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At December 31, 20182019 and 2017,2018, the insurance segment’s Loss Reserves by major line of business, net of unpaid losses and loss adjustment expenses recoverable, were as follows:
December 31,December 31,
2018 20172019 2018
Professional lines (1)$1,247,914
 $1,308,261
$1,322,969
 $1,247,914
Construction and national accounts1,166,143
 1,094,300
1,248,750
 1,166,143
Excess and surplus casualty (2)631,370
 672,903
564,254
 631,370
Programs482,045
 644,340
571,926
 482,045
Property, energy, marine and aviation388,710
 437,518
371,822
 388,710
Travel, accident and health83,836
 86,122
109,613
 83,836
Lenders products52,007
 53,912
28,233
 52,007
Other (3)704,415
 623,905
787,111
 704,415
Total net reserves$4,756,440
 $4,921,261
$5,004,678
 $4,756,440
(1)Includes professional liability, executive assurance and healthcare business.
(2)Includes casualty and contract binding business.
(3)Includes alternative markets, excess workers’ compensation and surety business.
At December 31, 20182019 and 2017,2018, the reinsurance segment’s Loss Reserves by major line of business, net of unpaid losses and loss adjustment expenses recoverable, were as follows:
December 31,December 31,
2018 20172019 2018
Casualty (1)$1,551,550
 $1,489,933
$1,796,073
 $1,551,550
Other specialty (2)582,420
 523,321
649,309
 582,420
Property excluding property catastrophe (3)422,612
 376,020
471,775
 422,612
Marine and aviation130,683
 135,484
160,930
 130,683
Property catastrophe90,635
 98,622
113,565
 90,635
Other (4)74,926
 68,372
84,115
 74,926
Total net reserves$2,852,826
 $2,691,752
$3,275,767
 $2,852,826
(1)Includes executive assurance, professional liability, workers’ compensation, excess motor, healthcare and other.
(2)Includes non-excess motor, surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and other.
(3)Includes facultative business.
(3)(4)Includes life, casualty clash and other.
Potential Variability in Loss Reserves
The tables below summarize the effect of reasonably likely scenarios on the key actuarial assumptions used to estimate our Loss Reserves, net of unpaid losses and loss adjustment expenses recoverable, at December 31, 20182019 by underwriting segment (excluding the ‘other’ segment). The scenarios shown in the tables summarize the effect of (i) changes to the expected loss ratio selections used at December 31, 2018,2019, which represent loss ratio point increases or decreases to the expected loss ratios used, and (ii) changes to the loss development patterns used in our reserving process at December 31, 2018,2019, which represent claims reporting that is either slower or faster than the reporting patterns used. We believe that the illustrated sensitivities are indicative of the potential variability inherent in the estimation process of those parameters. The results show


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the impact of varying each key actuarial assumption using the chosen sensitivity on our IBNR reserves, on a net basis and across all accident years.
INSURANCE SEGMENTHigher Expected Loss Ratios Slower Loss Development PatternsHigher Expected Loss Ratios Slower Loss Development Patterns
Reserving lines selected assumptions:      
Property, energy, marine and aviation5 points
 3 months
5 points
 3 months
Third party occurrence business10
 6
10
 6
Third party claims-made business10
 6
10
 6
All other10
 6
Multi-line and other specialty10
 6
      
Increase (decrease) in Loss Reserves:      
Property, energy, marine and aviation$22,535
 $25,570
$16,404
 $22,858
Third party occurrence business242,617
 128,893
257,686
 139,243
Third party claims-made business116,092
 124,271
112,089
 120,769
All other138,959
 148,815
Multi-line and other specialty126,168
 121,377
INSURANCE SEGMENTLower Expected Loss Ratios Faster Loss Development PatternsLower Expected Loss Ratios Faster Loss Development Patterns
Reserving lines selected assumptions:      
Property, energy, marine and aviation(5) points
 (3) months
(5) points
 (3) months
Third party occurrence business(10)
 (6)
(10)
 (6)
Third party claims-made business(10)
 (6)
(10)
 (6)
Multi-line and other specialty(10)
 (6)
(10)
 (6)
      
Increase (decrease) in Loss Reserves:      
Property, energy, marine and aviation$(21,926) $(20,646)$(16,331) $(19,345)
Third party occurrence business(242,224) (115,036)(257,381) (123,113)
Third party claims-made business(116,092) (95,565)(112,060) (98,892)
Multi-line and other specialty(133,762) (103,161)(119,211) (81,804)
REINSURANCE SEGMENTHigher Expected Loss Ratios Slower Loss Development PatternsHigher Expected Loss Ratios Slower Loss Development Patterns
Reserving lines selected assumptions:      
Casualty10 points
 6 months
10 points
 6 months
Other specialty5
 3
5
 3
Property excluding property catastrophe5
 3
5
 3
Property catastrophe5
 3
5
 3
Marine and aviation5
 3
5
 3
Other5
 3
5
 3
      
Increase (decrease) in Loss Reserves:      
Casualty$113,253
 $131,860
$130,546
 $154,027
Other specialty58,548
 33,113
59,901
 36,615
Property excluding property catastrophe14,449
 36,179
17,308
 43,876
Property catastrophe2,719
 4,874
5,113
 8,885
Marine and aviation7,243
 11,212
8,462
 13,641
Other4,972
 3,270
5,926
 4,666


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REINSURANCE SEGMENTLower Expected Loss Ratios Faster Loss Development PatternsLower Expected Loss Ratios Faster Loss Development Patterns
Reserving lines selected assumptions:      
Casualty(10) points
 (6) months
(10) points
 (6) months
Other specialty(5)
 (3)
(5)
 (3)
Property excluding property catastrophe(5)
 (3)
(5)
 (3)
Property catastrophe(5)
 (3)
(5)
 (3)
Marine and aviation(5)
 (3)
(5)
 (3)
Other(5)
 (3)
(5)
 (3)
      
Increase (decrease) in Loss Reserves:      
Casualty$(113,264) $(104,119)$(130,528) $(117,413)
Other specialty(58,548) (52,975)(59,901) (58,314)
Property excluding property catastrophe(14,475) (33,988)(17,309) (39,376)
Property catastrophe(2,719) (3,028)(5,113) (5,723)
Marine and aviation(7,255) (11,130)(8,473) (14,715)
Other(4,972) (3,067)(5,926) (4,378)
It is not necessarily appropriate to sum the total impact for a specific factor or the total impact for a specific business category as the business categories are not perfectly correlated. In addition, the potential variability shown in the tables above are reasonably likely scenarios of changes in our key assumptions at December 31, 20182019 and are not meant to be a “best case” or “worst case” series of outcomes and, therefore, it is possible that future variations may be more or less than the amounts set forth above.
For our mortgage segment, we considered the sensitivity of loss reserve estimates at December 31, 20182019 by assessing the potential changes resulting from a parallel shift in severity and default to claim rate. For example, assuming all other factors remain constant, for every one percentage point change in primary claim severity (which we estimate to be 27%30% of the unpaid principal balance at December 31, 2018)2019), we estimated that our loss reserves would change by approximately $17.0$14.0 million at December 31, 2018.2019. For every one percentage point change in our primary net default to claim rate (which we estimate to be approximately 36%25% at December 31, 2018)2019), we estimated a $13.0$17.0 million change in our loss reserves at December 31, 2018.
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Simulation Results
In order to illustrate the potential volatility in our Loss Reserves, we used a Monte Carlo simulation approach to simulate a range of results based on various probabilities. Both the probabilities and related modeling are subject to inherent uncertainties. The simulation relies on a significant number of assumptions, such as the potential for multiple entities to react similarly to external events, and includes other statistical assumptions. The simulation results shown for each segment do not add to the total simulation results, as the individual segment simulation results do not reflect the diversification effects across our segments.
At December 31, 2018,2019, our recorded Loss Reserves by underwriting segment, net of unpaid losses and loss adjustment expenses recoverable, and the results of the simulation were as follows:
Insurance Segment Reinsurance Segment Mortgage Segment TotalInsurance Segment Reinsurance Segment Mortgage Segment Total
Loss
Reserves (1)

$4,756,440
 
$2,852,826
 
$477,910
 
$8,087,176

$5,004,678
 
$3,275,767
 
$423,742
 
$8,704,187
              
Simulation results:              
90th percentile (2)
$5,772,504
 
$3,577,073
 
$571,959
 
$9,483,035

$6,020,835
 
$4,117,091
 
$507,130
 
$10,173,177
10th percentile (3)
$3,799,556
 
$2,219,249
 
$390,240
 
$6,777,556

$3,975,992
 
$2,548,680
 
$346,009
 
$6,777,556
(1)Net of reinsurance recoverables. Excludes amounts reflected in the ‘other’ segment.
(2)Simulation results indicate that a 90% probability exists that the net reserves for losses and loss adjustment expenses will not exceed the indicated amount.
(3)Simulation results indicate that a 10% probability exists that the net reserves for losses and loss adjustment expenses will be at or below the indicated amount.


For informational purposes, based on the total simulation results, a change in our Loss Reserves to the amount indicated at the 90th percentile would result in a decrease in income before income taxes of approximately $1.40$1.47 billion, or $3.38$3.55 per diluted share, while a change in our Loss Reserves to the amount indicated at the 10th percentile would result in an increase in income before income taxes of approximately $1.31$1.44 billion, or $3.17$3.47 per diluted share. The simulation results noted above are informational only, and no assurance can be given that our ultimate losses will not be significantly different than the simulation results shown above, and such differences could directly and significantly impact earnings favorably or unfavorably in the period they are determined. We do not have significant exposure to pre-2002 liabilities, such as asbestos-related illnesses and other long-tail liabilities. It is difficult to provide meaningful trend information for certain liability/casualty coverages for which the claim-tail may be especially long, as claims are often reported and ultimately paid or settled years, or even decades, after the related loss events occur. Any


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estimates and assumptions made as part of the reserving process could prove to be inaccurate due to several factors, including the fact that relatively limited historical information has been reported to us through December 31, 2018.2019.
Mortgage Operations Supplemental Information
The mortgage segment’s insurance in force (“IIF”) and risk in force (“RIF”) were as follows at December 31, 20182019 and 2017:2018:
(U.S. Dollars in millions)December 31,December 31,
2018
20172019
2018
Amount % Amount %Amount % Amount %
Insurance In Force (IIF) (1):              
U.S. primary mortgage insurance$276,538
 72.1
 $253,914
 72.2
$287,150
 68.7
 $276,538
 72.1
Mortgage reinsurance25,975
 6.8
 28,017
 8.0
26,768
 6.4
 25,975
 6.8
Other (2)81,147
 21.2
 69,905
 19.9
104,346
 24.9
 81,147
 21.2
Total$383,660
 100.0
 $351,836
 100.0
$418,264
 100.0
 $383,660
 100.0
Risk In Force (RIF) (3):              
U.S. primary mortgage insurance$70,995
 92.3
 $64,904
 92.3
$73,388
 91.9
 $70,995
 92.3
Mortgage reinsurance2,217
 2.9
 2,473
 3.5
2,129
 2.7
 2,217
 2.9
Other (2)3,728
 4.8
 2,921
 4.2
4,380
 5.5
 3,728
 4.8
Total$76,940
 100.0
 $70,298
 100.0
$79,897
 100.0
 $76,940
 100.0
(1)Represents the aggregate dollar amount of each insured mortgage loan’s current principal balance.
(2)Includes participation in GSE credit risk-sharing transactions and international insurance business.
(3)Represents the aggregate amount of each insured mortgage loan’s current principal balance multiplied by the insurance coverage percentage specified in the policy for insurance policies issued and after contract limits and/or loss ratio caps for credit risk-sharing or reinsurance transactions.


The insurance in force and risk in force for our U.S. primary mortgage insurance business by policy year were as follows at December 31, 2019:
(U.S. Dollars in millions)IIF RIF Delinquency
Amount % Amount % Rate (1)
Policy year:         
2009 and prior$16,903
 5.9
 $3,900
 5.3
 8.88%
2010348
 0.1
 90
 0.1
 3.97%
20111,678
 0.6
 464
 0.6
 1.59%
20126,293
 2.2
 1,753
 2.4
 0.89%
201312,276
 4.3
 3,433
 4.7
 0.99%
201413,714
 4.8
 3,778
 5.1
 1.16%
201525,788
 9.0
 6,880
 9.4
 0.87%
201640,898
 14.2
 10,670
 14.5
 1.03%
201743,896
 15.3
 11,262
 15.3
 1.00%
201851,776
 18.0
 13,086
 17.8
 0.86%
201973,580
 25.6
 18,072
 24.6
 0.14%
Total$287,150
 100.0
 $73,388
 100.0
 1.54%
(1)Represents the ending percentage of loans in default.
The insurance in force and risk in force for our U.S. primary mortgage insurance business by policy year were as follows at December 31, 2018:
(U.S. Dollars in millions)IIF RIF Delinquency
Amount % Amount % Rate (1)
Policy year:         
2008 and prior$20,501
 7.4
 $4,738
 6.7
 9.07%
2009709
 0.3
 162
 0.2
 3.25%
2010646
 0.2
 175
 0.2
 2.62%
20112,530
 0.9
 701
 1.0
 1.57%
20129,650
 3.5
 2,664
 3.8
 0.78%
201316,823
 6.1
 4,676
 6.6
 0.89%
201418,274
 6.6
 4,947
 7.0
 0.97%
201533,781
 12.2
 8,849
 12.5
 0.69%
201652,324
 18.9
 13,407
 18.9
 0.77%
201754,287
 19.6
 13,793
 19.4
 0.55%
201867,013
 24.2
 16,883
 23.8
 0.15%
Total$276,538
 100.0
 $70,995
 100.0
 1.60%
(1)Represents the ending percentage of loans in default.


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The insurance in force and risk in force for our U.S. primary mortgage insurance business by policy year were as follows at December 31, 2017:
(U.S. Dollars in millions)IIF RIF DelinquencyIIF RIF Delinquency
Amount % Amount % Rate (1)Amount % Amount % Rate (1)
Policy year:                  
2008 and prior$26,140
 10.3
 $6,003
 9.2
 10.24%
20091,072
 0.4
 253
 0.4
 2.94%
2009 and prior$21,210
 7.7
 $4,900
 6.9
 8.90%
20101,089
 0.4
 295
 0.5
 2.31%646
 0.2
 175
 0.2
 2.62%
20113,828
 1.5
 1,046
 1.6
 1.37%2,530
 0.9
 701
 1.0
 1.57%
201213,247
 5.2
 3,629
 5.6
 0.75%9,650
 3.5
 2,664
 3.8
 0.78%
201321,840
 8.6
 5,996
 9.2
 0.95%16,823
 6.1
 4,676
 6.6
 0.89%
201422,884
 9.0
 6,112
 9.4
 1.10%18,274
 6.6
 4,947
 7.0
 0.97%
201541,991
 16.5
 10,828
 16.7
 0.77%33,781
 12.2
 8,849
 12.5
 0.69%
201662,020
 24.4
 15,643
 24.1
 0.80%52,324
 18.9
 13,407
 18.9
 0.77%
201759,803
 23.6
 15,099
 23.3
 0.35%54,287
 19.6
 13,793
 19.4
 0.55%
201867,013
 24.2
 16,883
 23.8
 0.15%
Total$253,914
 100.0
 $64,904
 100.0
 2.23%$276,538
 100.0
 $70,995
 100.0
 1.60%
(1)Represents the ending percentage of loans in default.
The following tables provide supplemental disclosures on risk in force for our U.S. primary mortgage insurance business at December 31, 20182019 and 2017:2018:
(U.S. Dollars in millions)December 31,December 31,
2018 20172019 2018
Amount % Amount %Amount % Amount %
Credit quality (FICO):              
>=740$41,066
 57.8
 $37,794
 58.2
$42,301
 57.6
 $41,066
 57.8
680-73923,954
 33.7
 21,213
 32.7
25,240
 34.4
 23,954
 33.7
620-6795,485
 7.7
 5,159
 7.9
5,444
 7.4
 5,485
 7.7
<620490
 0.7
 738
 1.1
403
 0.5
 490
 0.7
Total$70,995
 100.0
 $64,904
 100.0
$73,388
 100.0
 $70,995
 100.0
Weighted average FICO score743
   743
  743
   743
  
              
Loan-to-Value (LTV):              
95.01% and above$7,918
 11.2
 $6,337
 9.8
$9,064
 12.4
 $7,918
 11.2
90.01% to 95.00%39,370
 55.5
 36,174
 55.7
40,136
 54.7
 39,370
 55.5
85.01% to 90.00%20,643
 29.1
 19,482
 30.0
20,890
 28.5
 20,643
 29.1
85.00% and below3,064
 4.3
 2,911
 4.5
3,298
 4.5
 3,064
 4.3
Total$70,995
 100.0
 $64,904
 100.0
$73,388
 100.0
 $70,995
 100.0
Weighted average LTV93.0%   92.9%  93.0%   93.0%  
              
Total RIF, net of external reinsurance$55,755
   $49,100
  $58,512
   $55,755
  


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(U.S. Dollars in millions)December 31,December 31,
2018 20172019 2018
Amount % Amount %Amount % Amount %
Total RIF by State:              
Texas$5,491
 7.7
 $5,151
 7.9
$5,678
 7.7
 $5,491
 7.7
California4,505
 6.3
 3,803
 5.9
5,187
 7.1
 4,505
 6.3
Florida3,541
 5.0
 2,881
 4.4
3,887
 5.3
 3,541
 5.0
Virginia2,931
 4.1
 2,773
 4.3
2,881
 3.9
 2,931
 4.1
Georgia2,573
 3.6
 2,331
 3.6
2,753
 3.8
 2,573
 3.6
Illinois2,616
 3.6
 2,482
 3.5
Minnesota2,514
 3.4
 2,400
 3.4
Washington2,474
 3.4
 2,408
 3.4
North Carolina2,505
 3.5
 2,410
 3.7
2,470
 3.4
 2,505
 3.5
Illinois2,482
 3.5
 2,229
 3.4
Washington2,408
 3.4
 2,294
 3.5
Maryland2,407
 3.4
 2,234
 3.4
2,437
 3.3
 2,407
 3.4
Minnesota2,400
 3.4
 2,165
 3.3
Others39,752
 56.0
 36,633
 56.4
40,491
 55.2
 39,752
 56.0
Total$70,995
 100.0
 $64,904
 100.0
$73,388
 100.0
 $70,995
 100.0
The following table provides supplemental disclosures for our U.S. primary mortgage insurance business related to insured loans and loss metrics for the years ended December 31, 20182019 and 2017:2018:
(U.S. Dollars in thousands, except loan and claim count)Year Ended December 31,Year Ended December 31,
2018 20172019 2018
Rollforward of insured loans in default:      
Beginning delinquent number of loans27,068
 29,691
20,665
 27,068
New notices (1)37,310
 41,846
39,017
 37,310
Cures(39,896) (38,413)(36,601) (39,896)
Paid claims(3,817) (6,056)(2,918) (3,817)
Ending delinquent number of loans (2)(1)20,665
 27,068
20,163
 20,665
      
Ending number of policies in force (2)(1)1,289,295
 1,213,382
1,307,884
 1,289,295
      
Delinquency rate (2)(1)1.60% 2.23%1.54% 1.60%
      
Losses:      
Number of claims paid3,817
 6,056
2,918
 3,817
Total paid claims$159,474
 $265,924
$116,854
 $159,474
Average per claim$41.8
 $43.9
$40.0
 $41.8
Severity (3)(2)102.0% 103.4%96.0% 102.0%
Average reserve per default (in thousands) (2)(1)$17.4
 $16.5
$13.3
 $17.4
(1) 
2018 year includes no new notices and approximately 200 ending delinquent loans at December 31, 2018 from areas impacted by the 2017 third quarter hurricanes.
(2)(1)Includes first lien primary and pool policies.
(3)(2)Represents total paid claims divided by RIF of loans for which claims were paid.


The risk-to-capital ratio, which represents total current (non-delinquent) risk in force, net of reinsurance, divided by total statutory capital, for Arch MI U.S. was approximately 12.0 to 1 at December 31, 2019, compared to 13.0 to 1 at December 31, 2018, compared to 10.8 to 1 at December 31, 2017.2018.
Ceded Reinsurance
In the normal course of business, our insurance and mortgage insurance operations cede a portion of their premium on a quota share or excess of loss basis through treaty or facultative reinsurance agreements. Our reinsurance operations also obtain


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reinsurance whereby another reinsurer contractually agrees to indemnify it for all or a portion of the reinsurance risks
underwritten by our reinsurance operations. Such arrangements, where one reinsurer provides reinsurance to another reinsurer, are usually referred to as “retrocessional reinsurance” arrangements. In addition, our reinsurance subsidiaries participate in “common account” retrocessional arrangements for certain pro rata treaties. Such arrangements reduce the effect of individual or aggregate losses to all companies participating on such treaties, including the reinsurers, such as our reinsurance operations, and the ceding company. Reinsurance recoverables are recorded as assets, predicated on the reinsurers’ ability to meet their obligations under the reinsurance agreements. If the reinsurers are unable to satisfy their obligations under the agreements, our insurance or reinsurance operations would be liable for such defaulted amounts.
The availability and cost of reinsurance and retrocessional protection is subject to market conditions, which are beyond our control. Although we believe that our insurance and reinsurance operations have been successful in obtaining adequate reinsurance and retrocessional protection, it is not certain that they will be able to continue to obtain adequate protection at cost effective levels. As a result of such market conditions and other factors, our insurance, reinsurance and mortgage operations may not be able to successfully mitigate risk through reinsurance and retrocessional arrangements and may lead to increased volatility in our results of operations in future periods. See “Risk Factors—Risks Relating to Our Industry—The failure of any of the loss limitation methods we employ could have a material adverse effect on our financial condition or results of operations.”
Effective JulyJanuary 1, 2018,2020, our insurance operations had in effect a reinsurance program which provided coverage for certain property-catastrophe related losses equal to $275$256 million in excess of a $75 million retentionvarious retentions per occurrence. Such amounts compare to $200 million in excess of a $150 million retention per occurrence prior to July 1, 2018.
For purposes of managing risk, we reinsure a portion of our exposures, paying to reinsurers a part of the premiums received on the policies we write, and we may also use retrocessional protection. On a consolidated basis, ceded premiums written represented 23.2%25.8% of gross premiums written for 2018,2019, compared to 22.1%23.2% for 2017 and 22.5% for 2016.2018. We monitor the financial condition of our reinsurers and attempt to place coverages only with substantial, financially sound carriers. If the financial condition of our reinsurers or retrocessionaires deteriorates, resulting in an impairment of their ability to make payments, we will provide for probable losses resulting from our inability to collect amounts due from such parties, as appropriate. We evaluate the credit worthiness of all the reinsurers to which we cede business. If our analysis indicates that there is significant uncertainty regarding our ability to
collect amounts due from reinsurers, managing general agents, brokers and other clients, we will record a provision for doubtful accounts. See “Risk Factors—Risks Relating to Our Company—We are exposed to


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credit risk in certain of our business operations” and “Financial Condition, Liquidity and Capital Resources—Financial Condition—Premiums Receivable and Reinsurance Recoverables”Resources” for further details.
Premium Revenues and Related Expenses
Insurance premiums written are generally recorded at the policy inception and are primarily earned on a pro rata basis over the terms of the policies for all products, usually 12 months. Premiums written include estimates in our insurance operations’ programs, specialty lines, collateral protection business and for participation in involuntary pools. Such premium estimates are derived from multiple sources which include the historical experience of the underlying business, similar business and available industry information. Unearned premium reserves represent the portion of premiums written that relates to the unexpired terms of in-force insurance policies.
Reinsurance premiums written include amounts reported by brokers and ceding companies, supplemented by our own estimates of premiums where reports have not been received. The determination of premium estimates requires a review of our experience with the ceding companies, familiarity with each market, the timing of the reported information, an analysis and understanding of the characteristics of each line of business, and management’s judgment of the impact of various factors, including premium or loss trends, on the volume of business written and ceded to us. On an ongoing basis, our underwriters review the amounts reported by these third parties for reasonableness based on their experience and knowledge of the subject class of business, taking into account our historical experience with the brokers or ceding companies. In addition, reinsurance contracts under which we assume business generally contain specific provisions which allow us to perform audits of the ceding company to ensure compliance with the terms and conditions of the contract, including accurate and timely reporting of information. Based on a review of all available information, management establishes premium estimates where reports have not been received. Premium estimates are updated when new information is received and differences between such estimates and actual amounts are recorded in the period in which estimates are changed or the actual amounts are determined. Premiums written are recorded based on the type of contracts we write. Premiums on our excess of loss and pro rata reinsurance contracts are estimated when the business is underwritten. For excess of loss contracts, premiums are recorded as written based on the terms of the contract. Estimates of premiums written under pro rata contracts are recorded in the period in which the underlying risks incept and are based on information provided by the brokers and the ceding companies. For multi-year reinsurance treaties which are payable in annual installments, generally, only the initial


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annual installment is included as premiums written at policy inception due to the ability of the reinsured to commute or cancel coverage during the term of the policy. The remaining annual installments are included as premiums written at each successive anniversary date within the multi-year term.
Reinstatement premiums for our insurance and reinsurance operations are recognized at the time a loss event occurs, where coverage limits for the remaining life of the contract are reinstated under pre-defined contract terms. Reinstatement premiums, if obligatory, are fully earned when recognized. The accrual of reinstatement premiums is based on an estimate of losses and loss adjustment expenses, which reflects management’s judgment, as described above in “—Reserves for Losses and Loss Adjustment Expenses.”
The amount of reinsurance premium estimates included in premiums receivable and the amount of related acquisition expenses by type of business were as follows at December 31, 2018:2019:
December 31, 2018December 31, 2019
Gross Amount Acquisition Expenses Net
Amount
Gross Amount Acquisition Expenses Net
Amount
Other specialty$248,580
 $(59,304) $189,276
$222,881
 $(56,628) $166,253
Casualty224,025
 (71,613) 152,412
172,129
 (53,074) 119,055
Property excluding property catastrophe104,250
 (32,656) 71,594
80,134
 (27,316) 52,818
Marine and aviation49,072
 (13,084) 35,988
46,962
 (12,159) 34,803
Property catastrophe1,759
 (103) 1,656
4,475
 (814) 3,661
Other80,295
 (11,673) 68,622
64,578
 (7,182) 57,396
Total$707,981
 $(188,433) $519,548
$591,159
 $(157,173) $433,986
Premium estimates are reviewed by management at least quarterly. Such review includes a comparison of actual reported premiums to expected ultimate premiums along with a review of the aging and collection of premium estimates. Based on management’s review, the appropriateness of the premium estimates is evaluated, and any adjustment to these estimates is recorded in the period in which it becomes known. Adjustments to premium estimates could be material and such adjustments could directly and significantly impact earnings favorably or unfavorably in the period they are determined because the estimated premium may be fully or substantially earned.
A significant portion of amounts included as premiums receivable, which represent estimated premiums written, net of commissions, are not currently due based on the terms of the underlying contracts. Based on currently available information, management believes that the premium estimates included in premiums receivable will be collectible and, therefore, no provision for doubtful accounts has been recorded on the premium estimates at December 31, 2018.2019.
Reinsurance premiums assumed, irrespective of the class of business, are generally earned on a pro rata basis over the terms of the underlying policies or reinsurance contracts. Contracts
and policies written on a “losses occurring” basis cover claims that may occur during the term of the contract or policy, which is typically 12 months. Accordingly, the premium is earned evenly over the term. Contracts which are written on a “risks attaching” basis cover claims which attach to the underlying


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insurance policies written during the terms of such contracts. Premiums earned on such contracts usually extend beyond the original term of the reinsurance contract, typically resulting in recognition of premiums earned over a 24-month period.
Certain of our reinsurance contracts include provisions that adjust premiums or acquisition expenses based upon the experience under the contracts. Premiums written and earned, as well as related acquisition expenses, are recorded based upon the projected experience under such contracts.
Retroactive reinsurance reimburses a ceding company for liabilities incurred as a result of past insurable events covered by the underlying policies reinsured. In certain instances, reinsurance contracts cover losses both on a prospective basis and on a retroactive basis and, accordingly, we bifurcate the prospective and retrospective elements of these reinsurance contracts and accounts for each element separately where practical. Underwriting income generated in connection with retroactive reinsurance contracts is deferred and amortized into income over the settlement period while losses are charged to income immediately. Subsequent changes in estimated amount or timing of cash flows under such retroactive reinsurance contracts are accounted for by adjusting the previously deferred amount to the balance that would have existed had the revised estimate been available at the inception of the reinsurance transaction, with a corresponding charge or credit to income.
Mortgage guaranty insurance policies are contracts that are generally non-cancelable by the insurer, are renewable at a fixed price, and provide for payment of premiums on a monthly, annual or single basis. Upon renewal, we are not able to re-underwrite or re-price our policies. Consistent with industry accounting practices, premiums written on a monthly basis are earned as coverage is provided. Premiums written on an annual basis are amortized on a monthly pro rata basis over the year of coverage. Primary mortgage insurance premiums written on policies covering more than one year are referred to as single premiums. A portion of the revenue from single premiums is recognized in premiums earned in the current period, and the remaining portion is deferred as unearned premiums and earned over the estimated expiration of risk of the policy. If single premium policies related to insured loans are canceled due to repayment by the borrowerfor any reason and the policy is a non-refundable product, the remaining unearned premium related to each canceled policy is recognized as earned premium upon notification of the cancellation.
Unearned premiums represent the portion of premiums written that is applicable to the estimated unexpired risk of insured loans. A portion of premium payments may be refundable if the


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insured cancels coverage, which generally occurs when the loan is repaid, the loan amortizes to a sufficiently low amount to trigger a lender permitted or legally required cancellation, or the value of the property has increased sufficiently in accordance with the terms of the contract. Premium refunds
reduce premiums earned in the consolidated statements of income. Generally, only unearned premiums are refundable.
Acquisition costs that are directly related and incremental to the successful acquisition or renewal of business are deferred and amortized based on the type of contract. For property and casualty insurance and reinsurance contracts, deferred acquisition costs are amortized over the period in which the related premiums are earned. Consistent with mortgage insurance industry accounting practice, amortization of acquisition costs related to the mortgage insurance contracts for each underwriting year’s book of business is recorded in proportion to estimated gross profits. Estimated gross profits are comprised of earned premiums and losses and loss adjustment expenses. For each underwriting year, we estimate the rate of amortization to reflect actual experience and any changes to persistency or loss development.
Acquisition expenses and other expenses related to our underwriting operations that vary with, and are directly related to, the successful acquisition or renewal of business are deferred and amortized based on the type of contract. Our insurance and reinsurance operations capitalize incremental direct external costs that result from acquiring a contract but do not capitalize salaries, benefits and other internal underwriting costs. For our mortgage insurance operations, which include a substantial direct sales force, both external and certain internal direct costs are deferred and amortized. Deferred acquisition costs are carried at their estimated realizable value and take into account anticipated losses and loss adjustment expenses, based on historical and current experience, and anticipated investment income.
A premium deficiency occurs if the sum of anticipated losses and loss adjustment expenses, unamortized acquisition costs and maintenance costs and anticipated investment income exceed unearned premiums. A premium deficiency reserve (“PDR”) is recorded by charging any unamortized acquisition costs to expense to the extent required in order to eliminate the deficiency. If the premium deficiency exceeds unamortized acquisition costs then a liability is accrued for the excess deficiency.
To assess the need for a PDR on our mortgage exposures, we develop loss projections based on modeled loan defaults related to our current policies in force. This projection is based on recent trends in default experience, severity and rates of defaulted loans moving to claim, as well as recent trends in the rate at which loans are prepaid, and incorporates anticipated interest income. Evaluating the expected profitability of our existing mortgage insurance business and the need for a PDR for our
mortgage business involves significant reliance upon assumptions and estimates with regard to the likelihood, magnitude and timing of potential losses and premium revenues. The models, assumptions and estimates we use to evaluate the need for a PDR may prove to be inaccurate,


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especially during an extended economic downturn or a period of extreme market volatility and uncertainty.
No premium deficiency charges were recorded by us during 2018, 20172019 and 2016.2018.
Fair Value Measurements
Accounting guidance regarding fair value measurements addresses how companies should measure fair value when they are required to use a fair value measure for recognition or disclosure purposes under GAAP and provides a common definition of fair value to be used throughout GAAP. It defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly fashion between market participants at the measurement date. In addition, it establishes a three-level valuation hierarchy for the disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The level in the hierarchy within which a given fair value measurement falls is determined based on the lowest level input that is significant to the measurement (Level 1 being the highest priority and Level 3 being the lowest priority).
We determine the existence of an active market based on our judgment as to whether transactions for the financial instrument occur in such market with sufficient frequency and volume to provide reliable pricing information. The independent pricing sources obtain market quotations and actual transaction prices for securities that have quoted prices in active markets. We use quoted values and other data provided by nationally recognized independent pricing sources as inputs into our process for determining fair values of our fixed maturity investments. To validate the techniques or models used by pricing sources, our review process includes, but is not limited to: quantitative analysis (e.g., comparing the quarterly return for each managed portfolio to their target benchmark, with significant differences identified and investigated); a review of the average number of prices obtained in the pricing process and the range of resulting fair values; initial and ongoing evaluation of methodologies used by outside parties to calculate fair value; comparing the fair value estimates to our knowledge of the current market; a comparison of the pricing services’ fair values to other pricing services’ fair values for the same investments; and back-testing, which includes randomly selecting purchased or sold securities and comparing the executed prices to the fair value estimates from the pricing service. Where multiple quotes or prices were obtained, a price source hierarchy was maintained in order to determine which price source would be used (i.e., a price obtained from a pricing service with more seniority in the


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hierarchy will be used from a less senior one in all cases). The hierarchy prioritizes pricing services based on availability and reliability and assigns the highest priority to index providers. Based on the above review, we will challenge any prices for a security or portfolio which are considered not to be representative of fair value.
The independent pricing sources obtain market quotations and actual transaction prices for securities that have quoted prices in active markets. Each source has its own proprietary method for determining the fair value of securities that are not actively traded. In general, these methods involve the use of “matrix pricing” in which the independent pricing source uses observable market inputs including, but not limited to, investment yields, credit risks and spreads, benchmarking of like securities, broker-dealer quotes, reported trades and sector groupings to determine a reasonable fair value. In addition, pricing vendors use model processes, such as an Option Adjusted Spread model, to develop prepayment and interest rate scenarios. The Option Adjusted Spread model is commonly used to estimate fair value for securities such as mortgage backed and asset backed securities. In certain circumstances, when fair values are unavailable from these independent pricing sources, quotes are obtained directly from broker-dealers who are active in the corresponding markets. Such quotes are subject to the validation procedures noted above.
We review our securities measured at fair value and discuss the proper classification of such investments with investment advisors and others. See note 9, “Fair Value,” to our consolidated financial statements in Item 8 for a summary of our financial assets and liabilities measured at fair value at December 31, 20182019 by valuation hierarchy.
Other-Than-Temporary Impairments
On a quarterly basis, we perform reviews of our investments to determine whether declines in fair value below the cost basis are considered other-than-temporary in accordance with applicable accounting guidance regarding the recognition and presentation of other-than-temporary impairments (“OTTI”). The process of determining whether a security is other-than-temporarily impaired requires judgment and involves analyzing many factors. These factors include: an analysis of the liquidity, business prospects and overall financial condition of the issuer; the time period in which there was a significant decline in value; the significance of the decline; and the analysis of specific credit events.
For debt securities, we separate an OTTI into two components when there are credit related losses associated with the impaired debt security for which we assert that we do not have the intent to sell the security, and it is more likely than not that we will not be required to sell the security before recovery of its cost basis. The amount of the OTTI related to a credit loss is recognized in earnings, and the amount of the OTTI related to
other factors (e.g., interest rates, market conditions, etc.) is recorded as a component of other comprehensive income or loss. The amount of the credit loss of an impaired debt security is the difference between the amortized cost and the greater of (i) the present value of expected future cash flows and (ii) the fair value of the security. In instances where no credit loss exists but it is more likely than not that we will have to sell the debt security prior to the anticipated recovery, the decline in fair value below amortized cost is recognized as an OTTI in earnings. In periods after the recognition of an OTTI on debt securities, we account for such securities as if they had been purchased on the measurement date of the OTTI at an amortized cost basis equal to the previous amortized cost basis less the OTTI recognized in earnings. For debt securities for which OTTI were recognized in earnings, the difference between the new amortized cost basis and the cash flows expected to be collected will be accreted or amortized into net investment income.
For 2018, we recorded $2.8 million of credit related impairments in earnings, compared to $7.1 million in 2017 and $30.4 million in 2016. See note 8, “Investment Information—Other-Than-Temporary Impairments,” to our consolidated financial statements in Item 8 for additional information.
Reclassifications
We have reclassified the presentation of certain prior year information to conform to the current presentation. Such reclassifications had no effect on our net income, shareholders’ equity or cash flows.
RecentSignificant Accounting Pronouncements
See For all other significant accounting policies see note 3(q),3, “Significant Accounting Policies—RecentPolicies” and note 3-(r), “Recent Accounting Pronouncements,”Pronouncements” to our consolidated financial statements in Item 8 for disclosures concerning our companies significant accounting policies and recent accounting pronouncements.


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FINANCIAL CONDITION
Investable Assets
At December 31, 2018,2019, total investable assets held by Arch were $19.57$22.29 billion, excluding the $2.76$2.70 billion included in the ‘other’ segment (i.e., attributable to Watford Re)Watford).
Investable Assets Held by Arch
The Finance, Investment and Risk Committee (“FIR”) of our board of directors establishes our investment policies and sets the parameters for creating guidelines for our investment managers. The FIR reviews the implementation of the investment strategy on a regular basis. Our current approach stresses preservation of capital, market liquidity and diversification of risk. While maintaining our emphasis on preservation of capital and liquidity, we expect our portfolio to become more diversified and, as a result, we may expand into areas which are not currently part of our investment strategy. Our Chief Investment Officer administers the investment portfolio, oversees our investment managers and formulates investment strategy in conjunction with the FIR.
 
The following table summarizes the fair value of investable assets held by Arch (i.e., excluding the ‘other’ segment):
Investable assets (1):
Estimated
Fair Value
 
% of
Total
Estimated
Fair Value
 
% of
Total
December 31, 2018   
December 31, 2019   
Fixed maturities (2)$14,881,902
 76.1
$16,894,021
 75.8
Short-term investments (2)995,926
 5.1
1,004,257
 4.5
Cash583,027
 3.0
623,793
 2.8
Equity securities (2)368,843
 1.9
827,842
 3.7
Other investments (2)1,261,525
 6.4
Other investments1,336,920
 6.0
Investments accounted for using the equity method1,493,791
 7.6
1,660,396
 7.5
Securities transactions entered into but not settled at the balance sheet date(18,153) (0.1)(61,553) (0.3)
Total investable assets held by Arch$19,566,861
 100.0
$22,285,676
 100.0
      
Average effective duration (in years)3.38
  3.40
  
Average S&P/Moody’s credit ratings (3)AA/Aa2
  AA/Aa2
  
Embedded book yield (4)2.89%  2.55%  
      
December 31, 2017   
December 31, 2018   
Fixed maturities (2)$14,798,213
 75.1
$14,881,902
 76.1
Short-term investments (2)1,509,713
 7.7
995,926
 5.1
Cash551,696
 2.8
583,027
 3.0
Equity securities (2)576,040
 2.9
368,843
 1.9
Other investments (2)1,476,960
 7.5
Other investments1,261,525
 6.4
Investments accounted for using the equity method1,041,322
 5.3
1,493,791
 7.6
Securities transactions entered into but not settled at the balance sheet date(237,523) (1.2)(18,153) (0.1)
Total investable assets held by Arch$19,716,421
 100.0
$19,566,861
 100.0
      
Average effective duration (in years)2.83
  3.38
  
Average S&P/Moody’s credit ratings (3)AA-/Aa2
  AA/Aa2
  
Embedded book yield (4)2.32%  2.89%  
(1)In securities lending transactions, we receive collateral in excess of the fair value of the securities pledged. For purposes of this table, we have excluded the collateral received under securities lending, at fair value and included the securities pledged under securities lending, at fair value.
(2)Includes investments carried as available for sale, at fair value and at fair value under the fair value option.
(3)Average credit ratings on our investment portfolio on securities with ratings by Standard & Poor’s Rating Services (“S&P”) and Moody’s Investors Service (“Moody’s”).
(4)Before investment expenses.
At December 31, 2018,2019, approximately $14.08$15.80 billion, or 72%71%, of total investable assets held by Arch were internally managed, compared to $13.73$14.08 billion, or 70%72%, at December 31, 2017.2018.




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The following table summarizes our fixed maturities and fixed maturities pledged under securities lending agreements (“Fixed Maturities”) by type:
Estimated
Fair Value
 
% of
Total
December 31, 2019 
  
Corporate bonds$6,561,354
 38.8
Mortgage backed securities541,800
 3.2
Municipal bonds880,119
 5.2
Commercial mortgage backed securities734,244
 4.3
U.S. government and government agencies4,632,947
 27.4
Non-U.S. government securities1,995,813
 11.8
Asset backed securities1,547,744
 9.2
Total$16,894,021
 100.0
Estimated
Fair Value
 
% of
Total
   
December 31, 2018 
   
  
Corporate bonds$5,735,526
 38.5
$5,735,526
 38.5
Mortgage backed securities535,763
 3.6
535,763
 3.6
Municipal bonds1,012,308
 6.8
1,012,308
 6.8
Commercial mortgage backed securities729,442
 4.9
729,442
 4.9
U.S. government and government agencies3,601,269
 24.2
3,601,269
 24.2
Non-U.S. government securities1,713,891
 11.5
1,713,891
 11.5
Asset backed securities1,553,703
 10.4
1,553,703
 10.4
Total$14,881,902
 100.0
$14,881,902
 100.0
   
December 31, 2017 
  
Corporate bonds$4,787,272
 32.4
Mortgage backed securities328,924
 2.2
Municipal bonds2,158,840
 14.6
Commercial mortgage backed securities545,817
 3.7
U.S. government and government agencies3,484,257
 23.5
Non-U.S. government securities1,704,337
 11.5
Asset backed securities1,788,766
 12.1
Total$14,798,213
 100.0
The following table provides the credit quality distribution of our Fixed Maturities. For individual fixed maturities, S&P ratings are used. In the absence of an S&P rating, ratings from Moody’s are used, followed by ratings from Fitch Ratings.
Estimated Fair Value 
% of
Total
December 31, 2019   
U.S. government and gov’t agencies (1)$5,215,489
 30.9
AAA3,392,341
 20.1
AA2,115,828
 12.5
A3,849,458
 22.8
BBB1,495,467
 8.9
BB355,803
 2.1
B216,663
 1.3
Lower than B56,865
 0.3
Not rated196,107
 1.2
Total$16,894,021
 100.0
Estimated Fair Value 
% of
Total
   
December 31, 2018      
U.S. government and gov’t agencies (1)$4,194,676
 28.2
$4,194,676
 28.2
AAA3,551,039
 23.9
3,551,039
 23.9
AA2,129,336
 14.3
2,129,336
 14.3
A3,069,656
 20.6
3,069,656
 20.6
BBB1,251,205
 8.4
1,251,205
 8.4
BB275,201
 1.8
275,201
 1.8
B183,614
 1.2
183,614
 1.2
Lower than B61,271
 0.4
61,271
 0.4
Not rated165,904
 1.1
165,904
 1.1
Total$14,881,902
 100.0
$14,881,902
 100.0
   
December 31, 2017   
U.S. government and gov’t agencies (1)$3,771,835
 25.5
AAA4,080,808
 27.6
AA2,440,864
 16.5
A2,470,936
 16.7
BBB1,157,136
 7.8
BB313,286
 2.1
B254,011
 1.7
Lower than B77,543
 0.5
Not rated231,794
 1.6
Total$14,798,213
 100.0
(1)Includes U.S. government-sponsored agency mortgage backed securities and agency commercial mortgage backed securities.
 
The following table provides information on the severity of the unrealized loss position as a percentage of amortized cost for all Fixed Maturities which were in an unrealized loss position:
Severity of gross unrealized losses:Estimated Fair Value 
Gross
Unrealized
Losses
 
% of
Total Gross
Unrealized
Losses
Estimated Fair Value 
Gross
Unrealized
Losses
 
% of
Total Gross
Unrealized
Losses
December 31, 2019     
0-10%$4,329,484
 $(51,023) 95.5
10-20%12,405
 (1,796) 3.4
20-30%830
 (273) 0.5
Greater than 30%315
 (363) 0.7
Total$4,343,034
 $(53,455) 100.0
     
December 31, 2018          
0-10%$8,722,837
 $(190,170) 92.5
$8,722,837
 $(190,170) 92.5
10-20%87,188
 (13,012) 6.3
87,188
 (13,012) 6.3
20-30%3,359
 (1,058) 0.5
3,359
 (1,058) 0.5
Greater than 30%2,363
 (1,266) 0.6
2,363
 (1,266) 0.6
Total$8,815,747
 $(205,506) 100.0
$8,815,747
 $(205,506) 100.0
     
December 31, 2017     
0-10%$9,598,768
 $(93,057) 87.6
10-20%82,638
 (11,269) 10.6
20-30%2,108
 (671) 0.6
Greater than 30%1,881
 (1,184) 1.1
Total$9,685,395
 $(106,181) 100.0
The following table summarizes our top ten exposures to fixed income corporate issuers by fair value at December 31, 2018,2019, excluding guaranteed amounts and covered bonds:
Estimated Fair Value 
Credit
Rating (1)
Estimated Fair Value 
Credit
Rating (1)
JPMorgan Chase & Co.$203,200
 A-/A1
Bank of America Corporation190,088
 A-/A3$272,554
 A-/A2
Wells Fargo & Company171,886
 A/Aa3
Apple Inc.164,486
 AA+/Aa1202,082
 AA+/Aa1
Citigroup Inc.152,321
 A/A2198,996
 A/A1
Nestle S.A.114,889
 AA-/Aa2
Daimler AG108,692
 A/A2
JPMorgan Chase & Co.198,863
 A-/A2
Wells Fargo & Company197,376
 A-/A1
Morgan Stanley102,420
 BBB+/A3144,345
 BBB+/A3
HSBC Holdings plc135,564
 A/A2
BP p.l.c.115,446
 A-/A1
Nestlé S.A.115,138
 AA-/Aa3
The Goldman Sachs Group, Inc.94,379
 BBB+/A3114,798
 BBB+/A3
Deere & Company91,792
 A/A2
Total$1,394,153
 $1,695,162
 
(1)Average credit ratings as assigned by S&P and Moody’s, respectively.




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The following table provides information on our structured securities, which include residential mortgage-backed securities (RMBS), commercial mortgage-backed securities (CMBS) and asset backed securities (“ABS”):
Agencies Investment Grade Below Investment Grade Total
Dec. 31, 2019  

 

  
RMBS$503,929
 $7,770
 $30,101
 $541,800
CMBS78,612
 629,424
 26,208
 734,244
ABS
 1,483,449
 64,295
 1,547,744
Total$582,541
 $2,120,643
 $120,604
 $2,823,788
Agencies Investment Grade Below Investment Grade Total  

 

  
Dec. 31, 2018  

 

    

 

  
RMBS$488,862
 $15,410
 $31,491
 $535,763
$488,862
 $15,410
 $31,491
 $535,763
CMBS104,547
 602,865
 22,030
 729,442
104,547
 602,865
 22,030
 729,442
ABS
 1,485,150
 68,553
 1,553,703

 1,485,150
 68,553
 1,553,703
Total$593,409
 $2,103,425
 $122,074
 $2,818,908
$593,409
 $2,103,425
 $122,074
 $2,818,908
  

 

  
Dec. 31, 2017  

 

  
RMBS$284,466
 $14,581
 $29,877
 $328,924
CMBS3,112
 465,980
 76,725
 545,817
ABS
 1,691,232
 97,534
 1,788,766
Total$287,578
 $2,171,793
 $204,136
 $2,663,507
The following table provides information on the fair value of our Eurozone investments at December 31, 2018:
Country (1)
Sovereign
(2)
 Corporate Bonds 
Other
(3)
 Total
Germany$338,409
 $3,119
 $45,834
 $387,362
Netherlands77,088
 143,308
 23,420
 243,816
France
 33,080
 31,442
 64,522
Luxembourg
 10,858
 12,555
 23,413
Spain
 1,324
 8,144
 9,468
Ireland
 4,727
 1,482
 6,209
Finland
 4,349
 1,821
 6,170
Italy
 
 1,748
 1,748
Austria
 
 1,122
 1,122
Portugal
 
 897
 897
Greece74
 
 496
 570
Supranational (4)
 
 
 
Estonia
 
 
 
Total$415,571
 $200,765
 $128,961
 $745,297
(1)The country allocations set forth in the table are based on various assumptions made by us in assessing the country in which the underlying credit risk resides, including a review of the jurisdiction of organization, business operations and other factors. Based on such analysis, we do not believe that we have any other Eurozone investments at December 31, 2018.
(2)Includes securities issued and/or guaranteed by Eurozone governments.
(3)Includes bank loans, equities and other.
At December 31, 2018,2019, our investment portfolio included $368.8$827.8 million of equity securities, compared to $576.0$368.8 million at December 31, 2017.2018. Our equity portfolio includes publicly traded common stocks in the natural resources, energy, consumer staples and other sectors.
The following table summarizes our other investments:investments, which are accounted for using the fair value option:
December 31,December 31,
2018 20172019 2018
Available for sale securities:   
Asia and emerging markets$
 $135,140
Investment grade fixed income
 53,878
Credit related funds
 18,365
Other
 57,606
Total available for sale (1)
 264,989
Fair value option:   
Term loan investments (par value: $288,841 and $326,339)281,635
 326,085
Term loan investments264,083
 281,635
Lending524,112
 399,099
602,841
 524,112
Credit related funds152,361
 132,131
123,020
 152,361
Energy117,509
 132,709
97,402
 117,509
Investment grade fixed income101,902
 102,347
151,594
 101,902
Infrastructure45,371
 82,291
61,786
 45,371
Private equity24,383
 23,593
18,915
 24,383
Real estate14,252
 13,716
17,279
 14,252
Total fair value option1,261,525
 1,211,971
$1,336,920
 $1,261,525
Total$1,261,525
 $1,476,960
(1)The Company reviewed the accounting treatment for three limited partnership investments which were accounted for as available for sale at December 31, 2017 during the 2018 first quarter and determined, based on reconsideration during the period of the Company’s percentage ownership, that the equity method of accounting was appropriate for such investments.
The following table summarizes our investments accounted for using the equity method:method, by strategy:
December 31,December 31,
2018 20172019 2018
Credit related funds$429,402
 $263,034
$428,437
 $429,402
Equities375,273
 292,762
293,686
 375,273
Real estate232,647
 176,328
246,851
 232,647
Lending125,041
 66,093
202,690
 125,041
Private equity114,019
 96,310
144,983
 114,019
Infrastructure113,748
 99,338
235,033
 113,748
Energy103,661
 47,457
108,716
 103,661
Total$1,493,791
 $1,041,322
$1,660,396
 $1,493,791
Our investment strategy allows for the use of derivative instruments. We utilize various derivative instruments such as futures contracts to enhance investment performance, replicate investment positions or manage market exposures and duration
risk that would be allowed under our investment guidelines if implemented in other ways. See note 10, “Derivative Instruments,” to our consolidated financial statements in Item 8 for additional disclosures concerning derivatives.
Accounting guidance regarding fair value measurements addresses how companies should measure fair value when they are required to use a fair value measure for recognition or disclosure purposes under GAAP and provides a common definition of fair value to be used throughout GAAP. See note 9, “Fair Value,” to our consolidated financial statements in Item


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8 for a summary of our financial assets and liabilities measured at fair value at December 31, 20182019 and 20172018 segregated by level in the fair value hierarchy.
Investable Assets in the ‘Other’ Segment
Investable assets in the ‘other’ segment are managed by Watford Re.Watford. The board of directors of Watford Re establishes their investment policies and guidelines. Watford Re’s investments are accounted for using the fair value option with changes in the carrying value of such investments recorded in net realized gains or losses.
The following table summarizes investable assets in the ‘other’ segment:
December 31,December 31,
2018 20172019 2018
Investments accounted for using the fair value option:      
Other investments$1,050,414
 $924,410
$1,092,396
 $1,050,414
Fixed maturities922,819
 1,177,033
416,592
 922,819
Short-term investments282,131
 256,755
329,303
 282,131
Equity securities56,638
 67,868
59,799
 56,638
Total2,312,002
 2,426,066
1,898,090
 2,344,208
Fixed maturities available for sale, at fair value393,351
 
706,875
 393,351
Equity securities32,206
 
65,337
 32,206
Cash63,529
 54,503
102,437
 63,529
Securities sold but not yet purchased(7,790) (34,375)(66,257) (7,790)
Securities transactions entered into but not settled at the balance sheet date(35,635) (6,127)(1,893) (35,635)
Total investable assets included in ‘other’ segment$2,757,663
 $2,440,067
$2,704,589
 $2,757,663
Reinsurance Recoverables
At December 31, 2019 and 2018, approximately 61.2% and 2017, approximately 63.0% and 69.9% of reinsurance recoverables on paid and unpaid losses (not including ceded unearned premiums) of $2.92$4.35 billion and $2.54$2.92 billion, respectively, were due from carriers which had an A.M. Best rating of “A-” or better while 37.0%38.8% and 30.1%37.0%, respectively, were from companies not rated. For items not rated, over 90% of such amount was collateralized through reinsurance trusts or letters of credit at December 31, 20182019 and 2017.2018. The largest reinsurance recoverables from any one carrier was approximately 2.7%1.7% and 2.2%2.7%, respectively, of total shareholders’ equity available to Arch at December 31, 20182019 and 2017.2018.



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The following table details our reinsurance recoverables at December 31, 2018:2019:
 % of Total 
A.M. Best
Rating (1)
Lloyd’s syndicates (2)8.0
A
Everest Reinsurance Company6.44.4
A+
Munich Reinsurance America, Inc.5.1

 A+
Hannover Rückversicherung AGck SE4.74.2

 A+
Swiss Reinsurance America Corporation4.33.6

 A+
AXA XL Catlin plc4.13.2

 A+
Partner Reinsurance Company of the U.S.4.13.0

 AA+
TransatlanticMunich Reinsurance CompanyAmerica, Inc.3.43.0

 A+
Berkley Insurance Company3.12.2

 A+
Lloyd’s syndicates (2)Transatlantic Reinsurance Company2.92.2

 AA+
Liberty Mutual Insurance Company2.52.1

 A
Renaissance Reinsurance2.21.4

 AA+
All other -- fully collateralized reinsurers (3)12.913.5

 NR
All other -- “A-” or better20.023.9

  
All other -- not rated (4)24.325.3

  
Total100.0

  
(1)The financial strength ratings are as of February 4, 201917, 2020 and were assigned by A.M. Best based on its opinion of the insurer’s financial strength as of such date. An explanation of the ratings listed in the table follows: the rating of “A+” is designated “Superior”; and the “A” rating is designated “Excellent.”
(2)The A.M. Best group rating of “A” (Excellent) has been applied to all Lloyd’s syndicates.
(3)Such amount is fully collateralized through reinsurance trusts.
(4)Over 90% of such amount is collateralized through reinsurance trusts or letters of credit.


Reserves for Losses and Loss Adjustment Expenses
We establish reserves for losses and LAE (Loss Reserves) which represent estimates involving actuarial and statistical projections, at a given point in time, of our expectations of the ultimate settlement and administration costs of losses incurred. Estimating Loss Reserves is inherently difficult, which is exacerbated by the fact that we have relatively limited historical experience upon which to base such estimates. We utilize actuarial models as well as available historical insurance industry loss ratio experience and loss development patterns to assist in the establishment of Loss Reserves. Actual losses and loss adjustment expenses paid will deviate, perhaps substantially, from the reserve estimates reflected in our financial statements. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Reserves for LossesLoss Reserves” and Loss Adjustment Expenses” and “Business—see Item 1“Business—Reserves” for further details.


ARCH CAPITAL812018 FORM 10-K



Shareholders’ Equity and Book Value per Share
Total shareholders’ equity available to Arch was $11.50 billion at December 31, 2019, compared to $9.44 billion at December 31, 2018, compared to $9.20 billion at December 31, 2017.2018. The increase in 20182019 was primarily attributable to underwriting, results, partially offset by share repurchases.strong investment returns and a lower level of catastrophic activity.
The following table presents the calculation of book value per share:
(U.S. dollars in thousands, except share data)December 31,December 31,
2018 20172019 2018
Total shareholders’ equity available to Arch$9,439,827
 $9,196,602
$11,497,371
 $9,439,827
Less preferred shareholders’ equity780,000
 872,555
780,000
 780,000
Common shareholders’ equity available to Arch$8,659,827
 $8,324,047
$10,717,371
 $8,659,827
Common shares and common share equivalents outstanding, net of treasury shares (1)402,454,834 409,956,417405,619,201 402,454,834
Book value per share$21.52
 $20.30
$26.42
 $21.52
(1)Excludes the effects of 20,076,59318,853,018 and 19,770,17420,076,593 stock options and 1,307,3041,586,779 and 913,4881,307,304 restricted stock and performance units outstanding at December 31, 20182019 and 2017,2018, respectively.


LIQUIDITY
This section does not include information specific to Watford Re.Watford. We do not guarantee or provide credit support for Watford, Re, and our financial exposure to Watford Re is limited to our investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from reinsurance transactions with Watford Re.Watford.
Liquidity is a measure of our ability to access sufficient cash flows to meet the short-term and long-term cash requirements of our business operations.
Arch Capital is a holding company whose assets primarily consist of the shares in its subsidiaries. Generally, Arch Capital depends on its available cash resources, liquid investments and dividends or other distributions from its subsidiaries to make payments, including the payment of debt service obligations and operating expenses it may incur and any dividends or liquidation amounts with respect to our preferred and common shares.
In 2018,2019, Arch Capital received dividends of $398.7$116.9 million from Arch Re Bermuda, our Bermuda-based reinsurer and insurer. In 2018,insurer which can pay approximately $3.1 billion to Arch Capital in 2020 without providing an affidavit to the Bermuda Monetary Authority (“BMA”). Arch-U.S. received $25.0 million of dividends from Arch Re U.S., our U.S. licensed reinsurer, and $525.0$465.0 million of dividends from Arch U.S. MI Holdings. Arch U.S. MI Holdings received aggregate dividends and returnInc., a subsidiary of capital from subsidiaries of $971.1 million in 2018.  Arch U.S. MIArch-U.S.

Holdings used such proceeds to pay down $375.0 million
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Table of its revolving credit agreement borrowings and pay dividends to Arch-U.S.Contents

Our insurance and reinsurance operations provide liquidity in that premiums are received in advance, sometimes substantially in advance, of the time losses are paid. The period of time from the occurrence of a claim through the settlement of the liability may extend many years into the future. Sources of liquidity include cash flows from operations, financing arrangements or routine sales of investments.


As part of our investment strategy, we seek to establish a level of cash and highly liquid short-term and intermediate-term securities which, combined with expected cash flow, is believed by us to be adequate to meet our foreseeable payment obligations. However, due to the nature of our operations, cash flows are affected by claim payments that may comprise large payments on a limited number of claims and which can fluctuate from year to year. We believe that our liquid investments and cash flow will provide us with sufficient liquidity in order to meet our claim payment obligations. However, the timing and amounts of actual claim payments related to recorded Loss Reserves vary based on many factors, including large individual losses, changes in the legal environment, as well as general market conditions. The ultimate amount of the claim payments could differ materially from our estimated amounts. Certain lines of business written by us, such as excess casualty, have loss experience characterized as low frequency and high severity. The foregoing may result in significant variability in loss payment patterns. The impact of this variability can be exacerbated by the fact that the timing of the receipt of reinsurance recoverables owed to us may be slower than anticipated by us. Therefore, the irregular timing of claim payments can create significant variations in cash flows from operations between periods and may require us to utilize other sources of liquidity to make these payments, which may include the sale of investments or utilization of existing or new credit facilities or capital market transactions. If the source of liquidity is the sale of investments, we may be forced to sell such investments at a loss, which may be material.
We expect that our liquidity needs, including our anticipated insurance obligations and operating and capital expenditure needs, for the next twelve months, at a minimum, will be met by funds generated from underwriting activities and investment income, as well as by our balance of cash, short-term investments, proceeds on the sale or maturity of our investments, and our credit facilities.


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Dividend Restrictions
Arch Capital has no material restrictions on its ability to make distributions to shareholders, howevershareholders. However, the ability of our regulated insurance and reinsurance subsidiaries to pay dividends or make distributions or other payments to us is limited by the applicable local laws and relevant regulations of the various countries and states in which we operate. See note 23,24, “Statutory Information,” to our consolidated financial statements in Item 8 for additional information on dividend restrictions.
The payment of dividends from Arch Re Bermuda is, under certain circumstances, limited under Bermuda law, which requires our Bermuda operating subsidiary to maintain certain measures of solvency and liquidity.
Our U.S. insurance and reinsurance subsidiaries are subject to insurance laws and regulations in the jurisdictions in which they operate. The ability of our regulated insurance subsidiaries to pay dividends or make distributions is dependent on their ability to meet applicable regulatory standards. These regulations include restrictions that limit the amount of dividends or other distributions, such as loans or cash advances, available to shareholders without prior approval of the insurance regulatory authorities. Each state requires prior regulatory approval of any payment of extraordinary dividends.
We also have insurance subsidiaries that are the parent company for other insurance subsidiaries, which means that dividends and other distributions will be subject to multiple layers of regulations in order for our insurance subsidiaries to be able to dividend funds to Arch Capital. The inability of the subsidiaries of Arch Capital to pay dividends and other permitted distributions could have a material adverse effect on Arch Capital’s cash requirements and our ability to make principal, interest and dividend payments on the senior notes, preferred shares and common shares.
In addition to meeting applicable regulatory standards, the ability of our insurance and reinsurance subsidiaries to pay dividends is also constrained by our dependence on the financial strength ratings of our insurance and reinsurance subsidiaries from independent rating agencies. The ratings from these agencies depend to a large extent on the capitalization levels of our insurance and reinsurance subsidiaries. We believe that Arch Capital has sufficient cash resources and available dividend capacity to service its indebtedness and other current outstanding obligations.
Restricted Assets
Our insurance, reinsurance and mortgage insurance subsidiaries are required to maintain assets on deposit, which primarily consist of fixed maturities, with various regulatory authorities to support their operations. The assets on deposit are available to settle insurance and reinsurance liabilities to third


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parties. Our insurance and reinsurance subsidiaries maintain assets in trust accounts as collateral for insurance and reinsurance transactions with affiliated companies and also have investments in segregated portfolios primarily to provide collateral or guarantees for letters of credit to third parties. At December 31, 20182019 and 2017,2018, such amounts approximated $6.76$6.80 billion and $6.01$6.76 billion, respectively, excluding amounts related to the ‘other’ segment.
Our investments in certain securities, including certain fixed income and structured securities, investments in funds accounted for using the equity method, other alternative investments and investments in ventures such as Watford Re and others may be illiquid due to contractual provisions or investment market conditions. If we require significant amounts of cash on short notice in excess of anticipated cash requirements, then we may have difficulty selling these investments in a timely manner or may be forced to sell or terminate them at unfavorable values. Our unfunded investment commitments totaled approximately $1.77$1.69 billion at December 31, 20182019 and are callable by our investment managers. The timing of the funding of investment commitments is uncertain and may require us to access cash on short notice.
Cash Flows
The following table summarizes our cash flows from operating, investing and financing activities, excluding amounts related to the ‘other’ segment:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018
Total cash provided by (used for):        
Operating activities$1,331,278
 $809,580
 $1,103,529
$1,810,060
 $1,331,278
Investing activities(268,734) (884,452) (2,597,738)(1,689,640) (268,734)
Financing activities(987,679) (166,829) 1,830,042
3,663
 (987,679)
Effects of exchange rate changes on foreign currency cash(16,383) 15,584
 (14,005)16,063
 (16,383)
Increase (decrease) in cash$58,482
 $(226,117) $321,828
$140,146
 $58,482
Cash provided by operating activities for 20182019 was higher than in 2017,2018, primarily reflecting an increase in premiums collected, a lower level of net losses paid and lower purchases of tax and loss bonds. The 20172018 period reflected a higher level of paid losses and purchases of tax and loss bonds, while 2016 reflected lower net losses paid.bonds.
Cash used for investing activities for 20182019 was lowerhigher than in 2017,2018, reflecting changes in cash collateral related toa higher level of securities lending for both. Activity for 2016 reflected our acquisition of UGC, which closed on December 31, 2016.purchased.
Cash used forprovided by financing activities for 20182019 was higher than the cash used in 2017, reflecting share repurchases2018. The 2018 period reflected $375.0 million of $282.8


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million, a $375 million repayment of borrowingpaydowns on our revolving credit agreement borrowings, $282.8 million of repurchases under our share
repurchase program and changes in cash collateral$92.6 million related to securities lending. Activity for 2017 reflected changes in cash collateral related to securities lending and a $125 million repaymentredemption of borrowing on our revolving credit agreement. Cash provided by financing activities for 2016 reflected various capital raising activity, such as the issuance of $950.0 million of senior notes and $450.0 million ofSeries C preferred shares combined with $400.0 million of borrowings under our revolving credit facility in order to fund some of the cash consideration portion of the UGC acquisition.shares.
Investments
At December 31, 2018,2019, our investable assets were $19.57$22.29 billion, excluding the $2.76$2.70 billion of investable assets related to the ‘other’ segment. The primary goals of our asset liability management process are to satisfy the insurance liabilities, manage the interest rate risk embedded in those insurance liabilities and maintain sufficient liquidity to cover fluctuations in projected liability cash flows, including debt service obligations. Generally, the expected principal and interest payments produced by our fixed income portfolio adequately fund the estimated runoff of our insurance reserves. Although this is not an exact cash flow match in each period, the substantial degree by which the fair value of the fixed income portfolio exceeds the expected present value of the net insurance liabilities, as well as the positive cash flow from newly sold policies and the large amount of high quality liquid bonds, provide assurance of our ability to fund the payment of claims and to service our outstanding debt without having to sell securities at distressed prices or access credit facilities.
Changes in general economic conditions, including new or continued sovereign debt concerns in Eurozone countries or downgrades of U.S. securities by credit rating agencies, could have a material adverse effect on financial markets and economic conditions in the U.S. and throughout the world. In turn, this could have a material adverse effect on our business, financial condition and results of operations and, in particular, this could have a material adverse effect on the value and liquidity of securities in our investment portfolio. Our investment portfolio as of December 31, 2018 included $415.6 million of securities issued and/or guaranteed by Eurozone governments at fair value, $3.60 billion of obligations of the U.S. government and government agencies at fair value and $1.01 billion of municipal bonds at fair value. Please refer to Item 1A “Risk Factors” for a discussion of other risks relating to our business and investment portfolio.
CAPITAL RESOURCES
This section does not include information specific to Watford Re.Watford. We do not guarantee or provide credit support for Watford, Re, and our financial exposure to Watford Re is limited to our investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from reinsurance transactions with Watford Re.Watford.



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The following table provides an analysis of our capital structure:
(U.S. dollars in thousands, except
share data)
December 31,December 31,
2018 20172019 2018
Debt:      
Senior notes, due May 2034$300,000
 $300,000
$300,000
 $300,000
Arch-U.S. senior notes, due Nov 2043 (1)500,000
 500,000
500,000
 500,000
Arch Finance senior notes, due Dec 2026 (1)500,000
 500,000
500,000
 500,000
Arch Finance senior notes, due Dec 2046 (1)450,000
 450,000
450,000
 450,000
Deferred debt issuance costs on senior notes(16,472) (17,116)(15,791) (16,472)
Revolving credit agreement borrowings due Oct 2021 (2)
 375,000

 
Total$1,733,528
 $2,107,884
$1,734,209
 $1,733,528
      
Shareholders’ equity available to Arch:      
Series C non-cumulative preferred shares (3)
 92,555
Series E non-cumulative preferred shares450,000
 450,000
450,000
 450,000
Series F non-cumulative preferred shares330,000
 330,000
330,000
 330,000
Common shareholders’ equity8,659,827
 8,324,047
10,717,371
 8,659,827
Total$9,439,827
 $9,196,602
$11,497,371
 $9,439,827
      
Total capital available to Arch$11,173,355
 $11,304,486
$13,231,580
 $11,173,355
      
Senior notes to total capital (%)15.5
 15.3
13.1
 15.5
Revolving credit agreement borrowings to total capital (%)
 3.3

 
Debt to total capital (%)15.5
 18.6
13.1
 15.5
Preferred to total capital (%)7.0
 7.7
5.9
 7.0
Debt and preferred to total capital (%)22.5
 26.4
19.0
 22.5
(1)Fully and unconditionally guaranteed by Arch Capital.
(2)$500 million unsecured facility for revolving loans and letters of credit.
(3)Redeemed on January 2, 2018.

Arch Capital and Arch-U.S. are each holding companies and, accordingly, they conduct substantially all of their operations through their operating subsidiaries. Arch Capital Finance LLC (“Arch Finance”) is a wholly owned subsidiary of Arch U.S. MI Holdings Inc., a U.S. holding company. As a result, Arch Capital, Arch-U.S. and Arch Finance's cash flows and their ability to service their debt depends upon the earnings of their operating subsidiaries and on their ability to distribute the earnings, loans or other payments from such subsidiaries to Arch Capital, Arch-U.S. and Arch Finance, respectively.
See note 17,18, “Debt and Financing Arrangements,” to our consolidated financial statements in Item 8 for additional disclosures concerning our senior notes and revolving credit


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agreement borrowings. For additional information on our preferred shares, see note 19,20, “Shareholders’ Equity,” to our consolidated financial statements in Item 8.
During 2018, 20172019 and 2016,2018, we made interest payments of $100.1 million, $103.7$98.7 million and $50.4$100.1 million respectively, related to our senior notes and other financing arrangements.
In November 2017, Arch Capital, Arch-U.S. and Arch Finance filed a universal shelf registration statement with the SEC. This registration statement allows for the possible future offer and sale by us of various types of securities, including unsecured debt securities, preference shares, common shares, warrants,
share purchase contracts and units and depositary shares. The shelf registration statement enables us to efficiently access the public debt and/or equity capital markets in order to meet our future capital needs. The shelf registration statement also allows selling shareholders to resell common shares that they own in one or more offerings from time to time. We will not receive any proceeds from any shares offered by the selling shareholders.
Capital Adequacy
We monitor our capital adequacy on a regular basis and will seek to adjust our capital base (up or down) according to the needs of our business. The future capital requirements of our business will depend on many factors, including our ability to write new business successfully and to establish premium rates and reserves at levels sufficient to cover losses. Our ability to underwrite is largely dependent upon the quality of our claims paying and financial strength ratings as evaluated by independent rating agencies. In particular, we require (1) sufficient capital to maintain our financial strength ratings, as issued by several ratings agencies, at a level considered necessary by management to enable our key operating subsidiaries to compete; (2) sufficient capital to enable our underwriting subsidiaries to meet the capital adequacy tests performed by statutory agencies in the U.S. and other key markets; and (3) our non-U.S. operating companies are required to post letters of credit and other forms of collateral that are necessary for them to operate as they are “non-admitted” under U.S. state insurance regulations.
In addition, Arch MI U.S. is required to maintain compliance with the GSEs requirements, known as the Private Mortgage Insurer Eligibility Requirements or “PMIERs.”PMIERs. The financial requirements require an eligible mortgage insurer’s available assets, which generally include only the most liquid assets of an insurer, to meet or exceed “minimum required assets” as of each quarter end. Minimum required assets are calculated from PMIERs tables with several risk dimensions (including origination year, original loan-to-value and original credit score of performing loans, and the delinquency status of non-performing loans) and are subject to a minimum amount. Arch MI U.S. satisfied the PMIERs’ financial requirements as of
December 31, 20182019 with a PMIER sufficiency ratio of 141%161%, compared to 129%141% at December 31, 2017.2018.
As part of our capital management program, we may seek to raise additional capital or may seek to return capital to our shareholders through share repurchases, cash dividends or other methods (or a combination of such methods). Any such determination will be at the discretion of our board of directors and will be dependent upon our profits, financial requirements and other factors, including legal restrictions, rating agency requirements and such other factors as our board of directors deems relevant.


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To the extent that our existing capital is insufficient to fund our future operating requirements or maintain such ratings, we may need to raise additional funds through financings or limit our growth. We can provide no assurance that, if needed, we would be able to obtain additional funds through financing on satisfactory terms or at all. Any adverse developments in the financial markets, such as disruptions, uncertainty or volatility in the capital and credit markets, may result in realized and unrealized capital losses that could have a material adverse effect on our results of operations, financial position and our businesses, and may also limit our access to capital required to operate our business. In addition to common share capital, we depend on external sources of finance to support our underwriting activities, which can be in the form (or any combination) of debt securities, preference shares, common equity and bank credit facilities providing loans and/or letters of credit.
Arch Capital, through its subsidiaries, provides financial support to certain of its insurance subsidiaries and affiliates, through certain reinsurance arrangements beneficial to the ratings of such subsidiaries. Historically, our U.S.-based insurance, reinsurance and mortgage insurance subsidiaries have entered into separate reinsurance arrangements with Arch Re Bermuda covering individual lines of business. The reinsurance agreements between our U.S.-based property casualty insurance and reinsurance subsidiaries and Arch Re Bermuda were canceled on a cutoff basis as of January 1, 2018. As a result, the level of subject business ceded to Arch Re Bermuda was substantially lower beginning in 2018 than in prior periods. In 2019, certain reinsurance agreements between our insurance and reinsurance subsidiaries were reinstated.
Except as described in the above paragraph, or where express reinsurance, guarantee or other financial support contractual arrangements are in place, each of Arch Capital’s subsidiaries or affiliates is solely responsible for its own liabilities and commitments (and no other Arch Capital subsidiary or affiliate is so responsible). Any reinsurance arrangements, guarantees or other financial support contractual arrangements that are in place are solely for the benefit of the Arch Capital subsidiary or affiliate involved and third parties (creditors or insureds of such entity) are not express beneficiaries of such arrangements.


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Share Repurchase Program
The board of directors of Arch Capital has authorized the investment in Arch Capital’s common shares through a share repurchase program. Since the inception of the share repurchase program through December 31, 2018,2019, Arch Capital has repurchased approximately 386.2386.3 million common shares for an aggregate purchase price of $3.97 billion. At December 31, 2018, approximately $163.7 million2019, $1.0 billion of share repurchases were available under the program. Repurchases under the program may be effected from time to time in open market or privately negotiated transactions through December 31, 2019.2021. The timing and amount of the repurchase transactions under this program will depend on a variety of factors, including market conditions and corporate and regulatory considerations. We will continue to monitor our share price and, depending upon results of operations, market conditions and the development of the economy, as well as other factors, we will consider share repurchases on an opportunistic basis.




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CONTRACTUAL OBLIGATIONS AND COMMITMENTS
This section does not include information specific to Watford Re.Watford. We do not guarantee or provide credit support for Watford, Re, and our financial exposure to Watford Re is limited to our investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from reinsurance transactions with Watford Re.Watford.
Contractual Obligations
The following table provides an analysis of our contractual commitments at December 31, 2018:2019:
Payment due by periodPayment due by period
Total 2019 2020 and 2021 2022 and 2023 ThereafterTotal 2020 2021 and 2022 2023 and 2024 Thereafter
Operating activities                  
Estimated gross payments for losses and loss adjustment expenses (1)$10,820,538
 $2,782,107
 $3,247,828
 $1,719,215
 $3,071,388
$12,628,213
 $3,612,298
 $3,818,635
 $1,901,186
 $3,296,094
Deposit accounting liabilities (2)15,739
 7,640
 1,149
 1,625
 5,325
10,431
 3,814
 668
 822
 5,127
Contractholder payables (3)2,079,111
 674,417
 720,908
 288,657
 395,129
2,119,460
 671,838
 729,706
 297,634
 420,282
Operating lease obligations193,151
 31,088
 59,842
 47,476
 54,745
170,453
 31,907
 58,439
 39,940
 40,167
Purchase obligations39,471
 23,224
 15,925
 315
 7
55,606
 29,861
 20,082
 4,753
 910
Contingent consideration liabilities (4)68,215
 58,000
 10,215
 
 
Investing activities
        
        
Unfunded investment commitments (5)1,765,282
 1,765,282
 
 
 
Unfunded investment commitments (4)1,686,649
 1,686,649
 
 
 
Financing activities                  
Securities lending payable (6)274,125
 274,125
 
 
 
Securities lending payable (5)388,366
 388,366
 
 
 
Senior notes (including interest payments)3,525,752
 90,465
 180,929
 180,929
 3,073,429
3,435,288
 90,465
 180,929
 180,929
 2,982,965
Capital lease obligations13,070
 6,204
 6,866
 
 
Financing lease obligations6,883
 4,822
 2,061
 
 
Total contractual obligations and commitments$18,794,454
 $5,712,552
 $4,243,662
 $2,238,217
 $6,600,023
$20,501,349
 $6,520,020
 $4,810,520
 $2,425,264
 $6,745,545
(1)
The estimated expected contractual commitments related to the reserves for losses and loss adjustment expenses are presented on a gross basis (i.e., not reflecting any corresponding reinsurance recoverable amounts that would be due to us). It should be noted that until a claim has been presented to us, determined to be valid, quantified and settled, there is no known obligation on an individual transaction basis, and while estimable in the aggregate, the timing and amount contain significant uncertainty.
(2)The estimated expected contractual commitments related to deposit accounting liabilities have been estimated using projected cash flows from the underlying contracts. It should be noted that, due to the nature of such liabilities, the timing and amount contain significant uncertainty.
(3)Certain insurance policies written by our insurance operations feature large deductibles, primarily in construction and national accounts lines. Under such contracts, we are obligated to pay the claimant for the full amount of the claim and are subsequently reimbursed by the policyholder for the deductible amount. In the event we are unable to collect from the policyholder, we would be liable for such defaulted amounts.
(4)Pursuant to our 2014 acquisition of the CMG Entities, we are required to make remaining contingent consideration payments as re-calculated over an earn-out period. For purposes of this table, the maximum exposure has been shown using an estimated payout pattern.
(5)Unfunded investment commitments are callable by our investment managers. We have assumed that such investments will be funded in the next year but the funding may occur over a longer period of time, due to market conditions and other factors.
(6)(5)As part of our securities lending program, we loan securities to third parties and receive collateral in the form of cash or securities. Such collateral is due back to the third parties at the close of the securities lending transactions, a majority of which is overnight and continuous by nature.


Letter of Credit and Revolving Credit Facilities
In the normal course of its operations, the Company enters into agreements with financial institutions to obtain secured and unsecured credit facilities.
On October 26, 2016,December 17, 2019 Arch Capital and certain of its subsidiaries entered into an $850.0$750.0 million five-year credit facility (the “Credit Facility”) with a syndication of lenders. The Credit Facility consists of a $350.0$250.0 million secured facility for letters of credit (the “Secured Facility”) and a $500.0 million unsecured facility for revolving loans and letters of credit (the “Unsecured Facility”). Obligations of each borrower under the Secured Facility for letters of credit are secured by cash and eligible securities of such borrower held in collateral
accounts. Subject toCommitments under the receipt of commitments, the SecuredCredit Facility may be increased by up to, but not exceeding, an aggregate of $350.0 million, and the Unsecured Facility may be increased to an amount not to exceed $750.0 million. $1.25 billion.
Arch Capital has a one-time option to convert any or all outstanding revolving loans of Arch Capital and/or Arch-U.S. to term loans with the same terms as the revolving loans except that any prepayments may not be re-borrowed. Arch-U.S. guarantees the obligations of Arch Capital, and Arch Capital guarantees the obligations of Arch-U.S. Borrowings of revolving loans may be made at a variable rate based on LIBOR or an alternative base rate at the option of Arch Capital. Secured letters of credit are available for issuance on behalf of Arch Capital insurance and reinsurance subsidiaries. The Credit Facility is structured such


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that each party that requests a letter of credit or borrowing does so only for itself and for only its own obligations.
The Credit Facility contains certain restrictive covenants customary for facilities of this type, including restrictions on indebtedness, consolidated tangible net worth, minimum


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shareholders’ equity levels and minimum financial strength ratings. Arch Capital and its subsidiaries which are party to the agreement were in compliance with all covenants contained therein at December 31, 2018.
Commitments under the Credit Facility will expire on October 26, 2021, and all loans then outstanding must be repaid. Letters of credit issued under the Unsecured Facility will not have an expiration date later than October 26, 2022.2019.
Under the $350.0$250.0 million secured letter of credit facility, Arch Capital’s subsidiaries had $174.8$225.4 million of letters of credit outstanding and remaining capacity of $175.2$24.6 million at December 31, 2018.2019. In addition, certain of Arch Capital’s subsidiaries had outstanding secured and unsecured letters of credit of $167.5$18.1 million and $195.0 million respectively, which were issued in the normal course of business. When issued, these letters of credit are secured by a portion of the investment portfolio. At December 31, 2018, these letters of creditThere were secured by investments with a fair value of $362.0 million.
The Company’sno outstanding revolving credit agreement borrowings were as follows:
  Year Ended December 31,
 2018 2017
Arch-U.S. $
 $375,000
Total revolving credit agreement borrowings $
 $375,000
at December 31, 2019 and 2018.
RATINGS
Our ability to underwrite business is affected by the quality of our claims paying ability and financial strength ratings as evaluated by independent agencies. Such ratings from third party internationally recognized statistical rating organizations or agencies are instrumental in establishing the financial security of companies in our industry. We believe that the primary users of such ratings include commercial and investment banks, policyholders, brokers, ceding companies and investors. Insurance ratings are also used by insurance and reinsurance intermediaries as an important means of assessing the financial strength and quality of insurers and reinsurers, and are often an important factor in the decision by an insured or intermediary of whether to place business with a particular insurance or reinsurance provider. Periodically, rating agencies evaluate us to confirm that we continue to meet their criteria for the ratings assigned to us by them. S&P, Moody’s, A.M. Best Company and Fitch Ratings are ratings agencies which
have assigned financial strength ratings to one or more of Arch Capital’s subsidiaries.
If we are not able to obtain adequate capital, our business, results of operations and financial condition could be adversely affected, which could include, among other things, the following possible outcomes: (1) potential downgrades in the financial strength ratings assigned by ratings agencies to our operating subsidiaries, which could place those operating subsidiaries at a competitive disadvantage compared to higher-rated competitors; (2) reductions in the amount of business that our operating subsidiaries are able to write in order to meet capital adequacy-based tests enforced by statutory agencies; and (3) any resultant ratings downgrades could, among other things, affect our ability to write business and increase the cost of bank credit and letters of credit. In addition, under certain of the reinsurance agreements assumed by our reinsurance operations, upon the occurrence of a ratings downgrade or other specified triggering event with respect to our reinsurance operations, such as a reduction in surplus by specified amounts during specified periods, our ceding company clients may be
provided with certain rights, including, among other things, the right to terminate the subject reinsurance agreement and/or to require that our reinsurance operations post additional collateral.
The ratings issued on our companies by these agencies are announced publicly and are available directly from the agencies. Our Internet site (www.ir.archcapgroup.com, under Credit Ratings) contains information about our ratings, but such information on our website is not incorporated by reference into this report.
CATASTROPHIC EVENTS AND SEVERE ECONOMIC EVENTS
We have large aggregate exposures to natural and man-made catastrophic events and severe economic events. Catastrophes can be caused by various events, including hurricanes, floods, windstorms, earthquakes, hailstorms, tornadoes, explosions, severe winter weather, fires, droughts and other natural disasters. Catastrophes can also cause losses in non-property business such as mortgage insurance, workers’ compensation or general liability. In addition to the nature of property business, we believe that economic and geographic trends affecting insured property, including inflation, property value appreciation and geographic concentration, tend to generally increase the size of losses from catastrophic events over time.
We have substantial exposure to unexpected, large losses resulting from future man-made catastrophic events, such as acts of war, acts of terrorism and political instability. These risks are inherently unpredictable. It is difficult to predict the timing of such events with statistical certainty or estimate the amount of loss any given occurrence will generate. It is not possible to


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completely eliminate our exposure to unforecasted or unpredictable events and, to the extent that losses from such risks occur, our financial condition and results of operations could be materially adversely affected. Therefore, claims for natural and man-made catastrophic events could expose us to large losses and cause substantial volatility in our results of operations, which could cause the value of our common shares to fluctuate widely. In certain instances, we specifically insure and reinsure risks resulting from terrorism. Even in cases where we attempt to exclude losses from terrorism and certain other similar risks from some coverages written by us, we may not be successful in doing so. Moreover, irrespective of the clarity and inclusiveness of policy language, there can be no assurance that a court or arbitration panel will limit enforceability of policy language or otherwise issue a ruling adverse to us.
We seek to limit our loss exposure by writing a number of our reinsurance contracts on an excess of loss basis, adhering to maximum limitations on reinsurance written in defined geographical zones, limiting program size for each client and prudent underwriting of each program written. In the case of


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proportional treaties, we may seek per occurrence limitations or loss ratio caps to limit the impact of losses from any one or series of events. In our insurance operations, we seek to limit our exposure through the purchase of reinsurance. We cannot be certain that any of these loss limitation methods will be effective. We also seek to limit our loss exposure by geographic diversification. Geographic zone limitations involve significant underwriting judgments, including the determination of the area of the zones and the inclusion of a particular policy within a particular zone's limits. There can be no assurance that various provisions of our policies, such as limitations or exclusions from coverage or choice of forum, will be enforceable in the manner we intend. Disputes relating to coverage and choice of legal forum may also arise. Underwriting is inherently a matter of judgment, involving important assumptions about matters that are inherently unpredictable and beyond our control, and for which historical experience and probability analysis may not provide sufficient guidance. One or more catastrophic or other events could result in claims that substantially exceed our expectations, which could have a material adverse effect on our financial condition or our results of operations, possibly to the extent of eliminating our shareholders' equity.
For our natural catastrophe exposed business, we seek to limit the amount of exposure we will assume from any one insured or reinsured and the amount of the exposure to catastrophe losses from a single event in any geographic zone. We monitor our exposure to catastrophic events, including earthquake and wind and periodically reevaluate the estimated probable maximum pre-tax loss for such exposures. Our estimated probable maximum pre-tax loss is determined through the use of modeling techniques, but such estimate does not represent our total potential loss for such exposures.
Our models employ both proprietary and vendor-based systems and include cross-line correlations for property, marine, offshore energy, aviation, workers compensation and personal accident. We seek to limit the probable maximum pre-tax loss to a specific level for severe catastrophic events. Currently, we seek to limit our 1-in-250 year return period net probable maximum loss from a severe catastrophic event in any geographic zone to approximately 25% of total shareholders’ equity available to Arch. We reserve the right to change this threshold at any time.
Based on in-force exposure estimated as of January 1, 2019,2020, our modeled peak zone catastrophe exposure is a windstorm affecting the Northeastern U.S.,Florida Tri-County, with a net probable maximum pre-tax loss of $374$612 million, followed by windstorms affecting Florida Tri-CountyNortheastern U.S. and the Gulf of Mexico with net probable maximum pre-tax losses of $330$544 million and $299$521 million, respectively. Our exposures to other perils, such as U.S. earthquake and international events, were less than the exposures arising from U.S. windstorms and hurricanes in both periods. As of January 1, 2019,2020, our modeled peak zone earthquake exposure (San Francisco area earthquake)
represented approximately 77%70% of our peak zone catastrophe exposure, and our modeled peak zone international exposure (Japan earthquake) was substantially less than both our peak zone windstorm and earthquake exposures.
We also have significant exposure to losses due to mortgage defaults resulting from severe economic events in the future. For our U.S. mortgage insurance business, we have developed a proprietary risk model (“Realistic Disaster Scenario” or “RDS”) that simulates the maximum loss resulting from a severe economic downturn impacting the housing market. The RDS models the collective impact of adverse conditions for key economic indicators, the most significant of which is a decline in home prices. The RDS model projects paths of future home prices, unemployment rates, income levels and interest rates and assumes correlation across states and geographic regions.  The resulting future performance of our in-force portfolio is then estimated under the economic stress scenario, reflecting loan and borrower information. 
Currently, we seek to limit our modeled RDS loss from a severe economic event to approximately 25% of total tangible shareholders’ equity available to Arch (total shareholders’ equity available to Arch less goodwill and intangible assets). We reserve the right to change this threshold at any time.  Based on in-force exposure estimated as of January 1, 2019,2020, our modeled RDS loss was less than 12%8% of tangible shareholders’ equity available to Arch.
Net probable maximum loss estimates are net of expected reinsurance recoveries, before income tax and before excess reinsurance reinstatement premiums. RDS loss estimates are net of expected reinsurance recoveries and after income tax. Catastrophe loss estimates are reflective of the zone indicated


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and not the entire portfolio. Since hurricanes and windstorms can affect more than one zone and make multiple landfalls, our catastrophe loss estimates include clash estimates from other zones. Our catastrophe loss estimates and RDS loss estimates do not represent our maximum exposures and it is highly likely that our actual incurred losses would vary materially from the modeled estimates. There can be no assurances that we will not suffer pre-tax losses greater than 25% of our total shareholders' equity or tangible shareholders’ equity from one or more catastrophic events or severe economic events due to several factors, including the inherent uncertainties in estimating the frequency and severity of such events and the margin of error in making such determinations resulting from potential inaccuracies and inadequacies in the data provided by clients and brokers, the modeling techniques and the application of such techniques or as a result of a decision to change the percentage of shareholders' equity exposed to a single catastrophic event or severe economic event. In addition, actual losses may increase if our reinsurers fail to meet their obligations to us or the reinsurance protections purchased by us are exhausted or are otherwise unavailable. See “Risk Factors—Risk Relating to Our Industry.” Depending on business


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opportunities and the mix of business that may comprise our insurance, reinsurance and mortgage portfolios, we may seek to adjust our self-imposed limitations on probable maximum pre-tax loss for catastrophe exposed business and mortgage default exposed business. See “—Critical Accounting Policies, Estimates and Recent Accounting Pronouncements—Ceded Reinsurance” for a discussion of our catastrophe reinsurance programs.
OFF-BALANCE SHEET ARRANGEMENTS
We have entered into various aggregate excess of loss reinsurance agreements with various special purpose reinsurance companies domiciled in Bermuda. These are special purpose variable interest entities that are not consolidated in our financial results because we do not have the unilateral power to direct those activities that are significant to its economic performance. As of December 31, 2018,2019, our estimated off-balance sheet maximum exposure to loss from such entities was $11.2$42.1 million. See note 11, “Variable Interest Entity and Noncontrolling Interests,” to our consolidated financial statements in Item 8 for additional information.
MARKET SENSITIVE INSTRUMENTS AND RISK MANAGEMENT
Our investment results are subject to a variety of risks, including risks related to changes in the business, financial condition or results of operations of the entities in which we invest, as well as changes in general economic conditions and overall market conditions. We are also exposed to potential loss from various
market risks, including changes in equity prices, interest rates and foreign currency exchange rates.
In accordance with the SEC’s Financial Reporting Release No. 48, we performed a sensitivity analysis to determine the effects that market risk exposures could have on the future earnings, fair values or cash flows of our financial instruments as of December 31, 2018.2019. Market risk represents the risk of changes in the fair value of a financial instrument and consists of several components, including liquidity, basis and price risks.
The sensitivity analysis performed as of December 31, 20182019 presents hypothetical losses in cash flows, earnings and fair values of market sensitive instruments which were held by us on December 31, 20182019 and are sensitive to changes in interest rates and equity security prices. This risk management discussion and the estimated amounts generated from the following sensitivity analysis represent forward-looking statements of market risk assuming certain adverse market conditions occur. Actual results in the future may differ materially from these projected results due to actual developments in the global financial markets. The analysis
methods used by us to assess and mitigate risk should not be considered projections of future events of losses.
We have not included Watford Re in the following analyses as we do not guarantee or provide credit support for Watford, Re, and our financial exposure to Watford Re is limited to itsour investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from the reinsurance transactions.
The focus of the SEC’s market risk rules is on price risk. For purposes of specific risk analysis, we employ sensitivity analysis to determine the effects that market risk exposures could have on the future earnings, fair values or cash flows of our financial instruments. The financial instruments included in the following sensitivity analysis consist of all of our investments and cash.
Investment Market Risk
Fixed Income Securities. We invest in interest rate sensitive securities, primarily debt securities. We consider the effect of interest rate movements on the market value of our fixed maturities, fixed maturities pledged under securities lending agreements, short-term investments and certain of our other investments which invest in fixed income securities and the corresponding change in unrealized appreciation. As interest rates rise, the market value of our interest rate sensitive securities falls, and the converse is also true. Based on historical observations, there is a low probability that all interest rate yield curves would shift in the same direction at the same time. Furthermore, at times interest rate movements in certain credit sectors exhibit a much lower correlation to changes in U.S. Treasury yields. Accordingly, the actual effect of interest rate


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movements may differ materially from the amounts set forth in the following tables.
The following table summarizes the effect that an immediate, parallel shift in the interest rate yield curve would have had on our investment portfolio at December 31, 20182019 and 2017:2018:
(U.S. dollars in billions)Interest Rate Shift in Basis PointsInterest Rate Shift in Basis Points
-100 -50 - +50 +100-100 -50 - +50 +100
Dec. 31, 2019         
Total fair value$21.54
 $21.19
 $20.83
 $20.48
 $20.13
Change from base3.4% 1.7%   (1.7)% (3.4)%
Change in unrealized value$0.71
 $0.35
   $(0.35) $(0.71)
Dec. 31, 2018                  
Total fair value$19.23
 $18.91
 $18.62
 $18.30
 $17.98
$19.23
 $18.91
 $18.62
 $18.30
 $17.98
Change from base3.3% 1.6%   (1.7)% (3.4)%3.3% 1.6%   (1.7)% (3.4)%
Change in unrealized value$0.61
 $0.30
   $(0.32) $(0.63)$0.61
 $0.30
   $(0.32) $(0.63)
Dec. 31, 2017         
Total fair value$19.11
 $18.85
 $18.59
 $18.33
 $18.09
Change from base2.8% 1.4%   (1.4)% (2.7)%
Change in unrealized value$0.52
 $0.26
   $(0.26) $(0.50)
In addition, we consider the effect of credit spread movements on the market value of our fixed maturities, fixed maturities


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pledged under securities lending agreements, short-term investments and certain of our other investments and investments accounted for using the equity method which invest in fixed income securities and the corresponding change in unrealized appreciation. As credit spreads widen, the fair value of our fixed income securities falls, and the converse is also true.
The following table summarizes the effect that an immediate, parallel shift in credit spreads in a static interest rate environment would have had on the portfolio at December 31, 20182019 and 2017:2018:
(U.S. dollars in billions)Credit Spread Shift in PercentageCredit Spread Shift in Percentage
-100 -50 - +50 +100-100 -50 - +50 +100
Dec. 31, 2019         
Total fair value$21.19
 $21.02
 $20.83
 $20.65
 $20.48
Change from base1.7% 0.9%   (0.9)% (1.7)%
Change in unrealized value$0.35
 $0.19
   $(0.19) $(0.35)
Dec. 31, 2018                  
Total fair value$19.08
 $18.84
 $18.62
 $18.39
 $18.15
$19.08
 $18.84
 $18.62
 $18.39
 $18.15
Change from base2.5% 1.2%   (1.2)% (2.5)%2.5% 1.2%   (1.2)% (2.5)%
Change in unrealized value$0.47
 $0.22
   $(0.22) $(0.47)$0.47
 $0.22
   $(0.22) $(0.47)
Dec. 31, 2017         
Total fair value$18.96
 $18.77
 $18.59
 $18.40
 $18.22
Change from base2.0% 1.0%   (1.0)% (2.0)%
Change in unrealized value$0.37
 $0.19
   $(0.19) $(0.37)
Another method that attempts to measure portfolio risk is Value-at-Risk (“VaR”). VaR attempts to take into account a broad cross-section of risks facing a portfolio by utilizing relevant securities volatility data skewed towards the most recent months and quarters. VaR measures the amount of a portfolio at risk for outcomes 1.65 standard deviations from the mean
based on normal market conditions over a one year time horizon and is expressed as a percentage of the portfolio’s initial value. In other words, 95% of the time, should the risks taken into account in the VaR model perform per their historical tendencies, the portfolio’s loss in any one year period is expected to be less than or equal to the calculated VaR, stated as a percentage of the measured portfolio’s initial value. As of December 31, 2018,2019, our portfolio’s VaR was estimated to be 3.02%2.80%, compared to an estimated 3.10%3.02% at December 31, 2017.2018.
Equity Securities, Privately Held Securities and Other Investments. Our investment portfolio includes an allocation to equity securities, privately held securities and certain other investments. At December 31, 20182019 and 2017,2018, the fair value of our investments in equity securities, privately held securities and certain other investments totaled $368.8$827.8 million and $576.0$368.8 million, respectively. These securities are exposed to price risk, which is the potential loss arising from decreases in fair value. An immediate hypothetical 10% depreciation in the value of each position would reduce the fair value of such investments by approximately $36.9$82.8 million and $57.6$36.9 million at December 31, 20182019 and 2017,2018, respectively, and would have
decreased book value per share by approximately $0.20 and $0.09, and $0.14, respectively.
Investment-Related Derivatives. At December 31, 2018,2019, the notional value of all derivative instruments (excluding to-be-announced mortgage backed securities which are included in the fixed income securities analysis above and foreign currency forward contracts which are included in the foreign currency exchange risk analysis below) was $4.95$8.04 billion, compared to $2.44$4.95 billion at December 31, 2017.2018. If the underlying exposure of each investment-related derivative held at December 31, 20182019 depreciated by 100 basis points, it would have resulted in a reduction in net income of approximately $49.5$80.4 million, and a decrease in book value per share of $0.12,$0.20, compared to $24.4$49.5 million and $0.06,$0.12, respectively, on investment-related derivatives held at December 31, 2017.2018. If the underlying exposure of each investment-related derivative held at December 31, 20182019 appreciated by 100 basis points, it would have resulted in an increase in net income of approximately $49.5$80.4 million, and an increase in book value per share of $0.12,$0.20, compared to $24.4$49.5 million and $0.06,$0.12, respectively, on investment-related derivatives held at December 31, 2017.2018. See note 10, “Derivative Instruments,” to our consolidated financial statements in Item 8 for additional disclosures concerning derivatives.
For further discussion on investment activity, please refer to “—Financial Condition, Liquidity and Capital Resources—Financial Condition—Investable Assets.”
Foreign Currency Exchange Risk
Foreign currency rate risk is the potential change in value, income and cash flow arising from adverse changes in foreign


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currency exchange rates. Through our subsidiaries and branches located in various foreign countries, we conduct our insurance and reinsurance operations in a variety of local currencies other than the U.S. Dollar. We generally hold investments in foreign currencies which are intended to mitigate our exposure to foreign currency fluctuations in our net insurance liabilities. We may also utilize foreign currency forward contracts and currency options as part of our investment strategy. See note 10, “Derivative Instruments,” to our consolidated financial statements in Item 8 for additional information.


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The following table provides a summary of our net foreign currency exchange exposures, as well as foreign currency derivatives in place to manage these exposures:
(U.S. dollars in thousands, except
per share data)
December 31,
2018
 December 31,
2017
December 31,
2019
 December 31,
2018
Net assets (liabilities), denominated in foreign currencies, excluding shareholders’ equity and derivatives$(561,311) $401,966
$265,501
 $(561,311)
Shareholders’ equity denominated in foreign currencies (1)478,678
 345,743
744,690
 478,678
Net foreign currency forward contracts outstanding (2)241,442
 (123,732)81,731
 241,442
Net exposures denominated in foreign currencies$158,809
 $623,977
$1,091,922
 $158,809
      
Pre-tax impact of a hypothetical 10% appreciation of the U.S. Dollar against foreign currencies: 
  
 
  
Shareholders’ equity$(15,881) $(62,398)$(109,192) $(15,881)
Book value per share$(0.04) $(0.15)$(0.27) $(0.04)
      
Pre-tax impact of a hypothetical 10% decline of the U.S. Dollar against foreign currencies: 
  
 
  
Shareholders’ equity$15,881
 $62,398
$109,192
 $15,881
Book value per share$0.04
 $0.15
$0.27
 $0.04
(1)Represents capital contributions held in the foreign currencies of our operating units.
(2)Represents the net notional value of outstanding foreign currency forward contracts.
 
Although the Company generally attempts to match the currency of its projected liabilities with investments in the same currencies, from time to time the Company may elect to over or underweight one or more currencies, which could increase the Company’s exposure to foreign currency fluctuations and increase the volatility of the Company’s shareholders’ equity. Historical observations indicate a low probability that all foreign currency exchange rates would shift against the U.S. Dollar in the same direction and at the same time and, accordingly, the actual effect of foreign currency rate movements may differ materially from the amounts set forth above. For further discussion on foreign exchange activity, please refer to “—Results of Operations.”
Effects of Inflation
We do not believe that inflation has had a material effect on our consolidated results of operations, except insofar as inflation may affect our reserves for losses and loss adjustment expenses and interest rates. The potential exists, after a catastrophe loss, for the development of inflationary pressures in a local economy. The anticipated effects of inflation on us are considered in our catastrophe loss models. The actual effects of inflation on our results cannot be accurately known until claims are ultimately settled.

ITEM 7A.
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Reference is made to the information appearing above under the subheading “Market Sensitive Instruments and Risk Management” under the caption “Management’s Discussion and Analysis of Financial Condition and Results of Operation,” which information is hereby incorporated by reference.




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ITEM 8.
FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Index to Financial StatementsPage No.
   
   
 
 At December 31, 20182019 and December 31, 20172018
   
 
 For the years ended December 31, 2019, 2018 2017 and 20162017
   
 
 For the years ended December 31, 2019, 2018 2017 and 20162017
   
 
 For the years ended December 31, 2019, 2018 2017 and 20162017
   
 
 For the years ended December 31, 2019, 2018 2017 and 20162017
   
Notes to Consolidated Financial Statements 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 






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Report of Independent Registered Public Accounting Firm


Tothe Board of Directors and Shareholders of Arch Capital Group Ltd.


Opinions on the Financial Statements and Internal Control over Financial Reporting


We have audited the accompanying consolidated balance sheets of Arch Capital Group Ltd. and its subsidiaries (the “Company”) as of December 31, 20182019 and 2017,2018,and the related consolidated statements of income, of comprehensive income, of changes in shareholders’ equity, and of cash flows for each of the three years in the period ended December 31, 2018,2019, including the related notes and financial statement schedules listed in the index appearing under Item 15(a)(2) (collectively referred to as the “consolidated financial statements”).We also have audited the Company's internal control over financial reporting as of December 31, 2018,2019, based on criteria established in Internal Control - Integrated Framework(2013)issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).


In our opinion, the consolidatedfinancial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 20182019 and 20172018, and the results of itsoperations and itscash flows for each of the three years in the period ended December 31, 2018,2019,in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2018,2019, based on criteria established in Internal Control - Integrated Framework(2013)issued by the COSO.


Basis for Opinions


The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Annual Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.


We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.


Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.



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Definition and Limitations of Internal Control over Financial Reporting


A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.




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Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.



Critical Audit Matters



The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Valuation of Reserve for Losses and Loss Adjustment Expenses

As described in Notes 3, 5 and 6 to the consolidated financial statements, the reserve for losses and loss adjustment expenses represents estimates of future amounts required to pay losses and loss adjustment expenses for insured or reinsured events which have occurred at or before the balance sheet date. As of December 31, 2019, the Company’s total reserve for losses and loss adjustment expenses was $13.9 billion. For the insurance and reinsurance segments, management estimates ultimate losses and loss adjustment expenses using various generally accepted actuarial methods applied to known losses and other relevant information. Ultimate losses and loss adjustment expenses are generally determined by extrapolation of claim emergence and settlement patterns observed in the past that can reasonably be expected to persist into the future. Management makes a number of key assumptions in their reserving process, including estimating loss development patterns and expected loss ratios. For the mortgage segment, the lead actuarial methodology used by management is a frequency-severity method based on the inventory of pending delinquencies. The assumptions of frequency and severity reflect judgments based on historical data and experience.

The principal considerations for our determination that performing procedures relating to the valuation of the reserve for losses and loss adjustment expenses is a critical audit matter are (i) there was significant judgment by management when developing their estimate, which in turn led to a high degree of auditor subjectivity and judgment in performing procedures relating to the valuation of the reserve for losses and loss adjustment expenses, (ii) there was significant auditor effort and judgment in evaluating audit evidence relating to the aforementioned key actuarial methods and key assumptions, and (iii) the audit effort included the involvement of professionals with specialized skill and knowledge to assist in performing these procedures and evaluating the audit evidence obtained.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the valuation of the reserve for losses and loss adjustment expenses, including controls over the selection of key actuarial methods and development of key assumptions. These procedures also included, among others, the involvement of professionals with specialized skill and knowledge to assist in performing one or a combination of procedures, including (i) developing an independent estimate, on a test basis, of the reserve for losses and loss adjustment expenses, and comparing the independent estimate to management’s actuarially determined reserve for losses and loss adjustment expenses to evaluate the reasonableness of the reserve for losses and loss adjustment expenses and (ii) evaluating the appropriateness of the actuarial methods and reasonableness of the assumptions, including loss development patterns, expected loss ratios, frequency, and severity used by management to determine the Company’s reserve for losses and loss adjustment expenses. Developing the independent estimate and evaluating the appropriateness of the key methods and reasonableness of the key assumptions related to loss development patterns, expected loss ratios, frequency and severity, as applicable, involved testing the completeness and accuracy of historical data provided by management.


/s/ PricewaterhouseCoopers LLP


New York, New York
February 28, 20192020


We have served as the Company’s or its predecessor’s auditor since 1995.  








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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(U.S. dollars in thousands, except share data)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(U.S. dollars in thousands, except share data)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(U.S. dollars in thousands, except share data)
December 31,December 31,
2018 20172019 2018
Assets      
Investments:      
Fixed maturities available for sale, at fair value (amortized cost: $14,829,902 and $13,869,460)$14,699,010
 $13,876,003
Short-term investments available for sale, at fair value (amortized cost: $956,238 and $1,468,955)955,880
 1,469,042
Collateral received under securities lending, at fair value (amortized cost: $274,125 and $476,605)274,133
 476,615
Fixed maturities available for sale, at fair value (amortized cost: $16,598,808 and $14,829,902)$16,894,526
 $14,699,010
Short-term investments available for sale, at fair value (amortized cost: $957,283 and $956,238)956,546
 955,880
Collateral received under securities lending, at fair value (amortized cost: $388,366 and $274,125)388,376
 274,133
Equity securities, at fair value338,899
 495,804
838,925
 338,899
Other investments available for sale, at fair value (cost: $0 and $198,163)
 264,989
Investments accounted for using the fair value option3,983,571
 4,216,237
3,663,477
 3,983,571
Investments accounted for using the equity method1,493,791
 1,041,322
1,660,396
 1,493,791
Total investments21,745,284
 21,840,012
24,402,246
 21,745,284
      
Cash646,556
 606,199
726,230
 646,556
Accrued investment income114,641
 113,133
117,937
 114,641
Securities pledged under securities lending, at fair value (amortized cost: $266,786 and $463,181)268,395
 464,917
Securities pledged under securities lending, at fair value (amortized cost: $378,738 and $266,786)379,868
 268,395
Premiums receivable1,299,150
 1,135,249
1,778,717
 1,299,150
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses2,919,372
 2,540,143
4,346,816
 2,919,372
Contractholder receivables2,079,111
 1,978,414
2,119,460
 2,079,111
Ceded unearned premiums975,469
 926,611
1,234,683
 975,469
Deferred acquisition costs569,574
 535,824
633,400
 569,574
Receivable for securities sold36,246
 205,536
24,133
 36,246
Goodwill and intangible assets634,920
 652,611
738,083
 634,920
Other assets929,611
 1,053,009
1,383,788
 929,611
Total assets$32,218,329
 $32,051,658
$37,885,361
 $32,218,329
      
Liabilities      
Reserve for losses and loss adjustment expenses$11,853,297
 $11,383,792
$13,891,842
 $11,853,297
Unearned premiums3,753,636
 3,622,314
4,339,549
 3,753,636
Reinsurance balances payable393,107
 323,496
667,072
 393,107
Contractholder payables2,079,111
 1,978,414
2,119,460
 2,079,111
Collateral held for insured obligations236,630
 240,183
206,698
 236,630
Senior notes1,733,528
 1,732,884
1,871,626
 1,733,528
Revolving credit agreement borrowings455,682
 816,132
484,287
 455,682
Securities lending payable274,125
 476,605
388,366
 274,125
Payable for securities purchased90,034
 449,186
87,579
 90,034
Other liabilities911,500
 782,717
1,513,330
 911,500
Total liabilities21,780,650
 21,805,723
25,569,809
 21,780,650
      
Commitments and Contingencies
 

 

Redeemable noncontrolling interests206,292
 205,922
55,404
 206,292
      
Shareholders’ Equity      
Non-cumulative preferred shares780,000
 872,555
780,000
 780,000
Convertible non-voting common equivalent preferred shares
 489,627
Common shares ($0.0011 par, shares issued: 570,737,283 and 549,872,226)634
 611
Common shares ($0.0011 par, shares issued: 574,617,195 and 570,737,283)638
 634
Additional paid-in capital1,793,781
 1,230,617
1,889,683
 1,793,781
Retained earnings9,426,299
 8,562,889
11,021,006
 9,426,299
Accumulated other comprehensive income (loss), net of deferred income tax(178,720) 118,044
212,091
 (178,720)
Common shares held in treasury, at cost (shares: 168,282,449 and 156,938,409)(2,382,167) (2,077,741)
Common shares held in treasury, at cost (shares: 168,997,994 and 168,282,449)(2,406,047) (2,382,167)
Total shareholders' equity available to Arch9,439,827
 9,196,602
11,497,371
 9,439,827
Non-redeemable noncontrolling interests791,560
 843,411
762,777
 791,560
Total shareholders' equity10,231,387
 10,040,013
12,260,148
 10,231,387
Total liabilities, noncontrolling interests and shareholders' equity$32,218,329
 $32,051,658
$37,885,361
 $32,218,329






See Notes to Consolidated Financial Statements


ARCH CAPITAL968920182019 FORM 10-K



Table of Contents


ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(U.S. dollars in thousands, except share data)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(U.S. dollars in thousands, except share data)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(U.S. dollars in thousands, except share data)
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Revenues          
Net premiums written$5,346,747
 $4,961,373
 $4,031,391
$6,039,067
 $5,346,747
 $4,961,373
Change in unearned premiums(114,772) (116,841) (146,569)(252,569) (114,772) (116,841)
Net premiums earned5,231,975
 4,844,532
 3,884,822
5,786,498
 5,231,975
 4,844,532
Net investment income563,633
 470,872
 366,742
627,738
 563,633
 470,872
Net realized gains (losses)(405,344) 149,141
 137,586
366,363
 (405,344) 149,141
     
Other-than-temporary impairment losses(2,829) (7,138) (30,794)(3,165) (2,829) (7,138)
Less investment impairments recognized in other comprehensive income, before taxes
 
 352
Net impairment losses recognized in earnings(2,829) (7,138) (30,442)
     
Other underwriting income15,073
 30,253
 57,173
24,861
 15,073
 30,253
Equity in net income of investments accounted for using the equity method45,641
 142,286
 48,475
123,672
 45,641
 142,286
Other income (loss)2,419
 (2,571) (800)2,233
 2,419
 (2,571)
Total revenues5,450,568
 5,627,375
 4,463,556
6,928,200
 5,450,568
 5,627,375
          
Expenses     

    
Losses and loss adjustment expenses2,890,106
 2,967,446
 2,185,599
3,133,452
 2,890,106
 2,967,446
Acquisition expenses805,135
 775,458
 667,625
840,945
 805,135
 775,458
Other operating expenses677,809
 684,451
 624,090
800,997
 677,809
 684,451
Corporate expenses78,994
 83,752
 81,746
80,111
 78,994
 83,752
Amortization of intangible assets105,670
 125,778
 19,343
82,104
 105,670
 125,778
Interest expense120,484
 117,431
 66,252
120,872
 120,484
 117,431
Net foreign exchange losses (gains)(69,402) 115,782
 (36,651)20,609
 (69,402) 115,782
Total expenses4,608,796
 4,870,098
 3,608,004
5,079,090
 4,608,796
 4,870,098
          
Income before income taxes841,772
 757,277
 855,552
1,849,110
 841,772
 757,277
          
Income taxes:          
Current tax (benefit) expense85,863
 (45,736) 50,745
Current tax expense (benefit)144,361
 85,863
 (45,736)
Deferred tax expense (benefit)28,088
 173,304
 (19,371)11,449
 28,088
 173,304
Income tax expense113,951
 127,568
 31,374
155,810
 113,951
 127,568
          
Net income$727,821
 $629,709
 $824,178
$1,693,300
 $727,821
 $629,709
Net (income) loss attributable to noncontrolling interests30,150
 (10,431) (131,440)(56,981) 30,150
 (10,431)
Net income available to Arch757,971
 619,278
 692,738
1,636,319
 757,971
 619,278
Preferred dividends(41,645) (46,041) (28,070)(41,612) (41,645) (46,041)
Loss on redemption of preferred shares(2,710) (6,735) 

 (2,710) (6,735)
Net income available to Arch common shareholders$713,616
 $566,502
 $664,668
$1,594,707
 $713,616
 $566,502
          
Net income per common share and common share equivalent          
Basic$1.76
 $1.40
 $1.83
$3.97
 $1.76
 $1.40
Diluted$1.73
 $1.36
 $1.78
$3.87
 $1.73
 $1.36
          
Weighted average common shares and common share equivalents outstanding          
Basic404,347,621
 404,138,364
 362,376,342
401,802,815
 404,347,621
 404,138,364
Diluted412,906,478
 417,785,025
 374,152,479
411,609,478
 412,906,478
 417,785,025


See Notes to Consolidated Financial Statements


ARCH CAPITAL979020182019 FORM 10-K



Table of Contents


ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(U.S. dollars in thousands)
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Comprehensive Income          
Net income$727,821
 $629,709
 $824,178
$1,693,300
 $727,821
 $629,709
Other comprehensive income (loss), net of deferred income tax          
Unrealized appreciation (decline) in value of available-for-sale investments:          
Unrealized holding gains (losses) arising during year(270,057) 252,904
 (21,013)500,771
 (270,057) 252,904
Portion of other-than-temporary impairment losses recognized in other comprehensive income, net of deferred income tax
 
 (352)
Reclassification of net realized gains, net of income taxes, included in net income144,573
 (67,863) (56,361)
Reclassification of net realized gains, included in net income(118,941) 144,573
 (67,863)
Foreign currency translation adjustments(24,830) 47,014
 (20,381)18,110
 (24,830) 47,014
Comprehensive income577,507
 861,764
 726,071
2,093,240
 577,507
 861,764
Net (income) loss attributable to noncontrolling interests30,150
 (10,431) (131,440)(56,981) 30,150
 (10,431)
Other comprehensive (income) loss attributable to noncontrolling interests3,346
 530
 68
(9,130) 3,346
 530
Comprehensive income available to Arch$611,003
 $851,863
 $594,699
$2,027,129
 $611,003
 $851,863








See Notes to Consolidated Financial Statements


ARCH CAPITAL989120182019 FORM 10-K



Table of Contents


ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
(U.S. dollars in thousands)
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Non-cumulative preferred shares          
Balance at beginning of year$872,555
 $772,555
 $325,000
$780,000
 $872,555
 $772,555
Preferred shares issued
 330,000
 450,000

 
 330,000
Preferred shares redeemed(92,555) (230,000) (2,445)
 (92,555) (230,000)
Balance at end of year780,000
 872,555
 772,555
780,000
 780,000
 872,555
          
Convertible non-voting common equivalent preferred shares          
Balance at beginning of year489,627
 1,101,304
 

 489,627
 1,101,304
Series D preferred shares issued
 
 1,101,304
Preferred shares converted to common shares(489,627) (611,677) 

 (489,627) (611,677)
Balance at end of year
 489,627
 1,101,304

 
 489,627
          
Common shares          
Balance at beginning of year611
 582
 577
634
 611
 582
Common shares issued, net23
 29
 5
4
 23
 29
Balance at end of year634
 611
 582
638
 634
 611
          
Additional paid-in capital          
Balance at beginning of year1,230,617
 531,687
 467,339
1,793,781
 1,230,617
 531,687
Preferred shares converted to common shares489,608
 611,653
 

 489,608
 611,653
Other changes73,556
 87,277
 64,348
95,902
 73,556
 87,277
Balance at end of year1,793,781
 1,230,617
 531,687
1,889,683
 1,793,781
 1,230,617
          
Retained earnings          
Balance at beginning of year8,562,889
 7,996,701
 7,332,032
9,426,299
 8,562,889
 7,996,701
Cumulative effect of an accounting change (see Note 3)149,794
 (314) 
Cumulative effect of an accounting change
 149,794
 (314)
Balance at beginning of year, as adjusted8,712,683
 7,996,387
 7,332,032
9,426,299
 8,712,683
 7,996,387
Net income727,821
 629,709
 824,178
1,693,300
 727,821
 629,709
Net (income) loss attributable to noncontrolling interests30,150
 (10,431) (131,439)(56,981) 30,150
 (10,431)
Preferred share dividends(41,645) (46,041) (28,070)(41,612) (41,645) (46,041)
Loss on redemption of preferred shares(2,710) (6,735) 

 (2,710) (6,735)
Balance at end of year9,426,299
 8,562,889
 7,996,701
11,021,006
 9,426,299
 8,562,889
          
Accumulated other comprehensive income (loss)          
Balance at beginning of year118,044
 (114,541) (16,502)(178,720) 118,044
 (114,541)
Unrealized appreciation (decline) in value of available-for-sale investments, net of deferred income tax:          
Balance at beginning of year157,400
 (27,641) 50,085
(114,178) 157,400
 (27,641)
Cumulative effect of an accounting change (see Note 3)(149,794) 
 
Cumulative effect of an accounting change
 (149,794) 
Balance at beginning of year, as adjusted7,606
 (27,641) 50,085
(114,178) 7,606
 (27,641)
Unrealized holding gains (losses) during period, net of reclassification adjustment(125,484) 185,041
 (77,374)381,830
 (125,484) 185,041
Unrealized holding gains (losses) during period attributable to noncontrolling interests3,700
 
 
(9,166) 3,700
 
Portion of other-than-temporary impairment losses recognized in other comprehensive income, net of deferred income tax
 
 (352)
Balance at end of year(114,178) 157,400
 (27,641)258,486
 (114,178) 157,400
Foreign currency translation adjustments, net of deferred income tax:          
Balance at beginning of year(39,356) (86,900) (66,587)(64,542) (39,356) (86,900)
Foreign currency translation adjustments(24,830) 47,014
 (20,381)18,110
 (24,830) 47,014
Foreign currency translation adjustments attributable to noncontrolling interests(356) 530
 68
37
 (356) 530
Balance at end of year(64,542) (39,356) (86,900)(46,395) (64,542) (39,356)
Balance at end of year(178,720) 118,044
 (114,541)212,091
 (178,720) 118,044
          
Common shares held in treasury, at cost          
Balance at beginning of year(2,077,741) (2,034,570) (1,941,904)(2,382,167) (2,077,741) (2,034,570)
Shares repurchased for treasury(304,426) (43,171) (92,666)(23,880) (304,426) (43,171)
Balance at end of year(2,382,167) (2,077,741) (2,034,570)(2,406,047) (2,382,167) (2,077,741)
          
Total shareholders’ equity available to Arch9,439,827
 9,196,602
 8,253,718
11,497,371
 9,439,827
 9,196,602
Non-redeemable noncontrolling interests791,560
 843,411
 851,854
762,777
 791,560
 843,411
Total shareholders’ equity$10,231,387
 $10,040,013
 $9,105,572
$12,260,148
 $10,231,387
 $10,040,013




See Notes to Consolidated Financial Statements


ARCH CAPITAL999220182019 FORM 10-K



Table of Contents


ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(U.S. dollars in thousands)
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(U.S. dollars in thousands)
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Operating Activities          
Net income$727,821
 $629,709
 $824,178
$1,693,300
 $727,821
 $629,709
Adjustments to reconcile net income to net cash provided by operating activities:          
Net realized (gains) losses387,550
 (174,517) (178,507)(381,132) 387,550
 (174,517)
Net impairment losses recognized in earnings2,829
 7,138
 30,442
3,165
 2,829
 7,138
Equity in net income or loss of investments accounted for using the
equity method and other income or loss
36,694
 (79,540) 5,644
(14,013) 36,694
 (79,540)
Amortization of intangible assets105,670
 125,778
 19,343
82,104
 105,670
 125,778
Share-based compensation55,776
 67,798
 56,581
66,417
 55,776
 67,798
Changes in:          
Reserve for losses and loss adjustment expenses, net of unpaid losses and loss adjustment expenses recoverable243,734
 614,534
 372,244
489,981
 243,734
 614,534
Unearned premiums, net of ceded unearned premiums114,772
 116,841
 146,569
252,569
 114,772
 116,841
Premiums receivable(211,296) (31,405) (71,613)(237,752) (211,296) (31,405)
Deferred acquisition costs(37,847) (78,378) (38,597)(47,260) (37,847) (78,378)
Reinsurance balances payable73,438
 8,529
 31,542
182,132
 73,438
 8,529
Other items, net60,181
 (111,609) 179,603
(41,052) 60,181
 (111,609)
Net cash provided by operating activities1,559,322
 1,094,878
 1,377,429
2,048,459
 1,559,322
 1,094,878
          
Investing Activities          
Purchases of fixed maturity investments(33,327,660) (36,806,913) (35,532,810)(30,053,777) (33,327,660) (36,806,913)
Purchases of equity securities(1,001,149) (1,021,016) (665,702)(811,967) (1,001,149) (1,021,016)
Purchases of other investments(2,014,622) (2,020,624) (1,389,406)(1,470,545) (2,014,622) (2,020,624)
Proceeds from sales of fixed maturity investments31,513,271
 35,686,779
 34,559,966
28,595,865
 31,513,271
 35,686,779
Proceeds from sales of equity securities1,118,445
 1,056,401
 751,728
429,818
 1,118,445
 1,056,401
Proceeds from sales, redemptions and maturities of other investments1,561,958
 1,528,617
 1,149,328
1,209,559
 1,561,958
 1,528,617
Proceeds from redemptions and maturities of fixed maturity investments892,755
 907,417
 755,007
643,265
 892,755
 907,417
Net settlements of derivative instruments44,699
 (28,563) (17,068)59,982
 44,699
 (28,563)
Net (purchases) sales of short-term investments485,473
 (734,554) (123,410)39,833
 485,473
 (734,554)
Change in cash collateral related to securities lending180,883
 12,540
 (155,248)(62,193) 180,883
 12,540
Acquisitions, net of cash
 
 (1,992,720)
Purchases of fixed assets(29,809) (22,841) (15,303)(37,837) (29,809) (22,841)
Other21,736
 90,875
 (27,795)(348,486) 21,736
 90,875
Net cash provided by (used for) investing activities(554,020) (1,351,882) (2,703,433)(1,806,483) (554,020) (1,351,882)
          
Financing Activities          
Proceeds from issuance of preferred shares, net
 319,694
 434,899

 
 319,694
Redemption of preferred shares(92,555) (230,000) (2,445)
 (92,555) (230,000)
Purchases of common shares under share repurchase program(282,762) 
 (75,256)(2,871) (282,762) 
Proceeds from common shares issued, net(7,608) (21,048) (2,418)6,203
 (7,608) (21,048)
Proceeds from borrowings218,259
 253,415
 1,386,741
200,083
 218,259
 253,415
Repayments of borrowings(576,401) (197,000) (219,171)(49,182) (576,401) (197,000)
Change in cash collateral related to securities lending(180,883) (12,540) 155,248
62,193
 (180,883) (12,540)
Change in third party investment in non-redeemable noncontrolling interests(75,056) 
 
Change in third party investment in redeemable noncontrolling interests(161,882) 
 
Dividends paid to redeemable noncontrolling interests(17,989) (17,989) (17,989)(12,515) (17,989) (17,989)
Other(7,226) (51,896) 4,130
(6,023) (7,226) (51,896)
Preferred dividends paid(41,645) (46,041) (28,070)(41,612) (41,645) (46,041)
Net cash provided by (used for) financing activities(988,810) (3,405) 1,635,669
(80,662) (988,810) (3,405)
          
Effects of exchange rate changes on foreign currency cash and restricted cash(19,133) 18,124
 (21,191)17,741
 (19,133) 18,124
          
Increase (decrease) in cash and restricted cash(2,641) (242,285) 288,474
179,055
 (2,641) (242,285)
Cash and restricted cash, beginning of year727,284
 969,569
 681,095
724,643
 727,284
 969,569
Cash and restricted cash, end of year$724,643
 $727,284
 $969,569
$903,698
 $724,643
 $727,284
          
Income taxes paid$(980) $51,781
 $50,621
Income taxes paid (received)$109,463
 $(980) $51,781
Interest paid$119,775
 $117,374
 $63,288
$126,945
 $119,775
 $117,374
Non-cash consideration paid in convertible non-voting common equivalent preferred shares$
 $
 $1,101,304


See Notes to Consolidated Financial Statements


ARCH CAPITAL1009320182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






1.    General
Arch Capital Group Ltd. (“Arch Capital”) is a Bermuda public limited liability company which provides insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries.
As used herein, the “Company” means Arch Capital and its subsidiaries. Similarly, “Common Shares” means the common shares of Arch Capital. The Company’s consolidated financial statements include the results of Watford Holdings Ltd., and its wholly owned subsidiaries (“Watford Re”Watford”). See note 11, “Variable Interest Entity and Noncontrolling Interests”.
The Company has reclassified the presentation of certain prior year information to conform to the current presentation. Such reclassifications had no effect on the Company’s net income, shareholders’ equity or cash flows. Tabular amounts are in U.S. Dollars in thousands, except share amounts, unless otherwise noted.
2.    Business Acquired

Barbican Group Holdings Limited
On November 29, 2019, the Company closed the acquisition of Barbican Group Holdings Limited and its subsidiaries (“Barbican”), including Barbican Managing Agency Limited (“BMAL”), Lloyd’s Syndicate 1955 (“Barbican Syndicate 1955”), Castel Underwriting Agencies Limited (“Castel”) and other associated entities.
The Ardonagh Group
On January 1, 2019, the Company’s U.K. insurance operations entered into a transaction with The Ardonagh Group to acquire renewal rights for a U.K. commercial lines book of business, consisting of commercial property, casualty, motor, professional liability, personal accident and travel business.
McNeil
On December 6, 2018, the Company closed the acquisition of McNeil & Co. (“McNeil”), a nationwide leader in specialized risk management and insurance programs headquartered in Cortland, New York.
Arch MI Asia Limited
On July 1, 2017, the Company completed its previously announcedclosed the acquisition of AIG United Guaranty Insurance (Asia) Limited (renamed “Arch MI Asia Limited”) following the payment of $40.0 million to AIG.American International Group, Inc. (“AIG”). Arch MI Asia Limited compliments the Company’s existing private mortgage insurance businesses, which have operations in the United States, Europe and Australia.
3.    Significant Accounting Policies

(a) Basis of Presentation
The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and include the accounts of Arch Capital and its subsidiaries, including Arch Reinsurance Ltd. (“Arch Re Bermuda”), Arch Reinsurance Company (“Arch Re U.S.”), Arch-U.S., Arch Insurance Company, Arch Specialty Insurance Company, Arch Excess & Surplus Insurance Company, Arch Indemnity Insurance Company, Arch Insurance Canada Ltd. (“Arch Insurance Canada”), Arch Reinsurance Europe Underwriting Designated Activity Company (“Arch Re
Europe”), Arch Mortgage Insurance Company, Arch Mortgage Guaranty Company, United Guaranty Residential Insurance Company, Arch Insurance (EU) Designated Activity Company (formerly, Arch Mortgage Insurance Designated Activity CompanyCompany) (“Arch MI Europe”Insurance (EU)”), Arch Insurance (UK) Limited (formerly Arch Insurance Company (Europe) Limited (“Limited)(“Arch Insurance Company Europe”(U.K.)”), Lloyd’s of London syndicate 2012 and related companies (“Arch Syndicate 2012”), Gulf Reinsurance LimitedBarbican and Watford Re.Watford. All significant intercompany transactions and balances have been eliminated in consolidation.
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions. The Company’s principal estimates include:
The reserve for losses and loss adjustment expenses;
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses, including the provision for uncollectible amounts;
Estimates of written and earned premiums;
The valuation of the investment portfolio and assessment of other-than-temporary impairments (“OTTI”);
The valuation of purchased intangible assets;
The assessment of goodwill and intangible assets for impairment; and
the valuation of deferred tax assets.
The Company has reclassified the presentation of certain prior year information to conform to the current presentation. Such reclassifications had no effect on the Company’s net income, shareholders’ equity or cash flows.
In 2018, the shareholders approved a three-for-one3-for-one stock split of the Company's common shares. All historical share and per share amounts reflect the effect of the stock split.


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(b) Premium Revenues and Related Expenses
Insurance.Insurance premiums written are generally recorded at the policy inception and are primarily earned on a pro rata basis over the terms of the policies for all products, usually 12 months. Premiums written include estimates in the Company’s programs, specialty lines, lenders products business and for participation in involuntary pools. Such premium estimates are derived from multiple sources which include the historical experience of the underlying business, similar business and available industry information. Unearned premium reserves represent the portion of premiums written that relates to the unexpired terms of in-force insurance policies.


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Reinsurance. Reinsurance premiums written include amounts reported by brokers and ceding companies, supplemented by the Company’s own estimates of premiums where reports have not been received. The determination of premium estimates requires a review of the Company’s experience with the ceding companies, familiarity with each market, the timing of the reported information, an analysis and understanding of the characteristics of each line of business, and management’s judgment of the impact of various factors, including premium or loss trends, on the volume of business written and ceded to the Company. On an ongoing basis, the Company’s underwriters review the amounts reported by these third parties for reasonableness based on their experience and knowledge of the subject class of business, taking into account the Company’s historical experience with the brokers or ceding companies. In addition, reinsurance contracts under which the Company assumes business generally contain specific provisions which allow the Company to perform audits of the ceding company to ensure compliance with the terms and conditions of the contract, including accurate and timely reporting of information. Based on a review of all available information, management establishes premium estimates where reports have not been received. Premium estimates are updated when new information is received and differences between such estimates and actual amounts are recorded in the period in which estimates are changed or the actual amounts are determined.
Reinsurance premiums written are recorded based on the type of contracts the Company writes. Premiums on the Company’s excess of loss and pro rata reinsurance contracts are estimated when the business is underwritten. For excess of loss contracts, premiums are recorded as written based on the terms of the contract. Estimates of premiums written under pro rata contracts are recorded in the period in which the underlying risks are expected to incept and are based on information provided by the brokers and the ceding companies. For multi-year reinsurance treaties which are payable in annual installments, generally, only the initial annual installment is included as premiums written at policy inception due to the ability of the reinsured to commute or cancel coverage during the term of the policy. The remaining annual installments are included as
premiums written at each successive anniversary date within the multi-year term.
Reinstatement premiums for the Company’s insurance and reinsurance operations are recognized at the time a loss event occurs, where coverage limits for the remaining life of the contract are reinstated under pre-defined contract terms. Reinstatement premiums, if obligatory, are fully earned when recognized. The accrual of reinstatement premiums is based on an estimate of losses and loss adjustment expenses, which reflects management’s judgment.
Premium estimates are reviewed by management at least quarterly. Such review includes a comparison of actual reported premiums to expected ultimate premiums along with a review
of the aging and collection of premium estimates. Based on management’s review, the appropriateness of the premium estimates is evaluated, and any adjustment to these estimates is recorded in the period in which it becomes known. Adjustments to premium estimates could be material and such adjustments could directly and significantly impact earnings favorably or unfavorably in the period they are determined because the estimated premium may be fully or substantially earned. A significant portion of amounts included as premiums receivable, which represent estimated premiums written, net of commissions, are not currently due based on the terms of the underlying contracts.
Reinsurance premiums written, irrespective of the class of business, are generally earned on a pro rata basis over the terms of the underlying policies or reinsurance contracts. Contracts and policies written on a “losses occurring” basis cover claims that may occur during the term of the contract or policy, which is typically 12 months. Accordingly, the premium is earned evenly over the term. Contracts which are written on a “risks attaching” basis cover claims which attach to the underlying insurance policies written during the terms of such contracts. Premiums earned on such contracts usually extend beyond the original term of the reinsurance contract, typically resulting in recognition of premiums earned over a 24-month period. Certain of the Company’s reinsurance contracts include provisions that adjust premiums or acquisition expenses based upon the experience under the contracts. Premiums written and earned, as well as related acquisition expenses, are recorded based upon the projected experience under such contracts.
The Company also writes certain reinsurance business that is intended to provide insurers with risk management solutions that complement traditional reinsurance. Under these contracts, the Company assumes a measured amount of insurance risk in exchange for an anticipated margin, which is typically lower than on traditional reinsurance contracts. The terms and conditions of these contracts may include additional or return premiums based on loss experience, loss corridors, sublimits and caps. Examples of such business include aggregate stop-loss coverages, financial quota share coverages and multi-year


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retrospectively rated excess of loss coverages. If these contracts are deemed to transfer risk, they are accounted for as reinsurance. Otherwise, such contracts are accounted for under the deposit method.
Mortgage. Mortgage guaranty insurance policies are contracts that are generally non-cancelable by the insurer, are renewable at a fixed price, and provide for payment of premiums on a monthly, annual or single basis. Upon renewal, the Company is not able to re-underwrite or re-price its policies. Consistent with industry accounting practices, premiums written on a monthly basis are earned as coverage is provided. Premiums written on an annual basis are amortized on a monthly pro rata basis over the year of coverage. Primary mortgage insurance premiums written on policies covering more than one year are


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referred to as single premiums. A portion of the revenue from single premiums is recognized in premiums earned in the current period, and the remaining portion is deferred as unearned premiums and earned over the estimated expiration of risk of the policy. If single premium policies related to insured loans are canceled due to repayment by the borrower and the policy is a non-refundable product, the remaining unearned premium related to each canceled policy is recognized as earned premium upon notification of the cancellation.
Unearned premiums represent the portion of premiums written that is applicable to the estimated unexpired risk of insured loans. A portion of premium payments may be refundable if the insured cancels coverage, which generally occurs when the loan is repaid, the loan amortizes to a sufficiently low amount to trigger a lender permitted or legally required cancellation, or the value of the property has increased sufficiently in accordance with the terms of the contract. Premium refunds reduce premiums earned in the consolidated statements of income. Generally, only unearned premiums are refundable.
Acquisition Costs.Acquisition costs that are directly related and incremental to the successful acquisition or renewal of business are deferred and amortized based on the type of contract. The Company’s insurance and reinsurance operations capitalize incremental direct external costs that result from acquiring a contract but do not capitalize salaries, benefits and other internal underwriting costs. For the Company’s mortgage insurance operations, which include a substantial direct sales force, both external and certain internal direct costs are deferred and amortized. For property and casualty insurance and reinsurance contracts, deferred acquisition costs are amortized over the period in which the related premiums are earned. Consistent with mortgage insurance industry accounting practice, amortization of acquisition costs related to the mortgage insurance contracts for each underwriting year’s book of business is recorded in proportion to estimated gross profits. Estimated gross profits are comprised of earned premiums and losses and loss adjustment expenses. For each underwriting year, the Company estimates the rate of amortization to reflect
actual experience and any changes to persistency or loss development.
Deferred acquisition costs are carried at their estimated realizable value and take into account anticipated losses and loss adjustment expenses, based on historical and current experience, and anticipated investment income.
A premium deficiency occurs if the sum of anticipated losses and loss adjustment expenses, unamortized acquisition costs and maintenance costs exceed unearned premiums (including expected future premiums) and anticipated investment income. A premium deficiency reserve (“PDR”) is recorded by charging any unamortized acquisition costs to expense to the extent required in order to eliminate the deficiency. If the premium
deficiency exceeds unamortized acquisition costs then a liability is accrued for the excess deficiency.
To assess the need for a PDR on mortgage exposures, the Company develops loss projections based on modeled loan defaults related to its current policies in force. This projection is based on recent trends in default experience, severity and rates of defaulted loans moving to claim, as well as recent trends in the rate at which loans are prepaid, and incorporates anticipated interest income. Evaluating the expected profitability of the Company’s existing mortgage insurance business and the need for a PDR for its mortgage business involves significant reliance upon assumptions and estimates with regard to the likelihood, magnitude and timing of potential losses and premium revenues.
No premium deficiency charges were recorded by the Company during 2019, 2018 2017 or 2016.2017.
(c) Deposit Accounting
Certain assumed reinsurance contracts that are deemed not to transfer insurance risk, are accounted for using the deposit method of accounting. However, it is possible that the Company could incur financial losses on such contracts. Management exercises significant judgment in the assumptions used in determining whether assumed contracts should be accounted for as reinsurance contracts or deposit contracts. For those contracts that contain only significant underwriting risk, the estimated profit margin is deferred and amortized over the contract period and such amount is included in the Company’s underwriting results. When the estimated profit margin is explicit, the margin is reflected as other underwriting income and any adverse financial results on such contracts are reflected as incurred losses. When the estimated profit margin is implicit, the margin is reflected as an offset to paid losses and any adverse financial results on such contracts are reflected as incurred losses. Additional judgments are required when applying the accounting guidance with respect to the revenue recognition criteria for contracts deemed to transfer only significant underwriting risk. For those contracts that contain only


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significant timing risk, an accretion rate is established at inception of the contract based on actuarial estimates whereby the deposit accounting liability is increased to the estimated amount payable over the contract term. The accretion on the deposit is based on the expected rate of return required to fund the expected future payment obligations. Periodically the Company reassesses the estimated ultimate liability and the related expected rate of return. The accretion of the deposit accounting liability as well as changes to the estimated ultimate liability and the accretion rate would be reflected as part of interest expense in the Company’s results of operations. Any negative accretion in a deposit accounting liability is shown in other underwriting income in the Company’s results of operations.


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Under some of these contracts, the ceding company retains the related assets on a funds-held basis. Such amounts are included in “Other assets” on the Company’s balance sheet. Interest income produced by those assets are recorded as part of net investment income in the Company's results of operations.
(d) Retroactive AccountingReinsurance
Retroactive reinsurance reimburses a ceding company for liabilities incurred as a result of past insurable events covered by the underlying policies reinsured. In certain instances, reinsurance contracts cover losses both on a prospective basis and on a retroactive basis and, accordingly, the Company bifurcates the prospective and retrospective elements of these reinsurance contracts and accounts for each element separately where practical. Underwriting income generated in connection with retroactive reinsurance contracts is deferred and amortized into income over the settlement period while losses are charged to income immediately. Subsequent changes in estimated amount or timing of cash flows under such retroactive reinsurance contracts are accounted for by adjusting the previously deferred amount to the balance that would have existed had the revised estimate been available at the inception of the reinsurance transaction, with a corresponding charge or credit to income.
(e) Reinsurance Ceded
In the normal course of business, the Company purchases reinsurance to increase capacity and to limit the impact of individual losses and events on its underwriting results by reinsuring certain levels of risk with other insurance enterprises or reinsurers. The Company uses pro rata, excess of loss and facultative reinsurance contracts. Reinsurance ceding commissions that represent a recovery of acquisition costs are recognized as a reduction to acquisition costs while the remaining portion is deferred. The accompanying consolidated statement of income reflects premiums and losses and loss adjustment expenses and acquisition costs, net of reinsurance ceded. See note 7, “Reinsurance” for information on the Company's reinsurance usage. Reinsurance premiums ceded
and unpaid losses and loss adjustment expenses recoverable are estimated in a manner consistent with that of the original policies issued and the terms of the reinsurance contracts. If the reinsurers are unable to satisfy their obligations under the agreements, the Company’s insurance or reinsurance subsidiaries would be liable for such defaulted amounts.
(f) Cash
Cash includes cash equivalents, which are investments with original maturities of three months or less thatwhich are not managedpart of the investment portfolio.
(g) Restricted Cash
Restricted cash represents amounts held for the benefit of third parties and is legally or contractually restricted as to withdrawal or usage by external or internal investment advisors.
the Company. Such amounts are included in “Other assets” on the Company’s balance sheet.
(g)(h) Investments
The Company currently classifies substantially all of its fixed maturity investments and short-term investments as “available for sale” and, accordingly, they are carried at estimated fair value (also known as fair value) with the changes in fair value recorded as an unrealized gain or loss component of accumulated other comprehensive income in shareholders’ equity. The fair value of fixed maturity securities and equitiesequity securities is generally determined from quotations received from nationally recognized pricing services, or when such prices are not available, by reference to broker or underwriter bid indications. Short-term investments comprise securities due to mature within one year of the date of issue. Short-term investments include certain cash equivalents which are part of investment portfolios under the management of external and internal investment managers.
The Company enters into securities lending agreements with financial institutions to enhance investment income whereby it loans certain of its securities to third parties, primarily major brokerage firms, for short periods of time through a lending agent. Such securities have been reclassified as “Securities pledged under securities lending, at fair value.” The Company maintains legal control over the securities it lends, retains the earnings and cash flows associated with the loaned securities and receives a fee from the borrower for the temporary use of the securities. Collateral received is required at a rate of 102% or greater of the fair value of the loaned securities including accrued investment income and is monitored and maintained by the lending agent. Such collateral is reflected as “Collateral received under securities lending, at fair value.”
The Company’s investment portfolio includes certain funds that, due to their ownership structure, are accounted for by the Company using the equity method. In applying the equity method, these investments are initially recorded at cost and are


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subsequently adjusted based on the Company’s proportionate share of the net income or loss of the funds (which include changes in the fair value of the underlying securities in the funds). Such investments are generally recorded on a one to three month lag based on the availability of reports from the investment funds. Changes in the carrying value of such investments are recorded in net income as “Equity in net income (loss) of investments accounted for using the equity method.” As such, fluctuations in the carrying value of the investments accounted for using the equity method may increase the volatility of the Company’s reported results of operations.
The Company’s investment portfolio includes equity securities that are accounted for at fair value. Such holdings primarily include publicly traded common stocks. Dividend income on equities is reflected in net investment income. Changes in fair value on equity securities are included in “Net realized gains (losses)” in the consolidated statement of income.


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The Company elected to carry certain fixed maturity securities, equity securities and other investments at fair value under the fair value option afforded by accounting guidance regarding the fair value option for financial assets and liabilities. The fair value for certain of the Company’s other investments are determined using net asset values (“NAVs”) as advised by external fund managers. The NAV is based on the fund manager’s valuation of the underlying holdings in accordance with the fund’s governing documents.
Changes in fair value of investments accounted for using the fair value option are included in “Net realized gains (losses).” The primary reasons for electing the fair value option were to address simplification and cost-benefit considerations.
The Company invests in limited partner interests and shares of limited liability companies. Such amounts are included in investments accounted for using the equity method, other investments available for sale and investments accounted for using the fair value option. These investments can often have characteristics of a variable interest entity (“VIE”). A VIE refers to entities that have characteristics such as (i) insufficient equity at risk to allow the entity to finance its activities without additional financial support or (ii) instances where the equity investors, as a group, do not have the characteristic of a controlling financial interest. If the Company is determined to be the primary beneficiary, it is required to consolidate the VIE. The primary beneficiary is defined as the variable interest holder that is determined to have the controlling financial interest as a result of having both (i) the power to direct the activities of a VIE that most significantly impact the economic performance of the VIE and (ii) the obligation to absorb losses or right to receive benefits from the VIE that could potentially be significant to the VIE. At inception of the VIE as well as on an ongoing basis, the Company determines whether it is the primary beneficiary based on an analysis of the Company’s level of involvement in the VIE, the contractual terms, and the
overall structure of the VIE. The Company's maximum exposure to loss with respect to these investments is limited to the investment carrying amounts reported in the Company's consolidated balance sheet and any unfunded commitment.
The Company performs quarterly reviews of its investments to determine whether declines in fair value below the cost basis are considered other-than-temporary in accordance with applicable accounting guidance regarding the recognition and presentation of OTTI. The process of determining whether a security is other-than-temporarily impaired requires judgment and involves analyzing many factors. These factors include (i) an analysis of the liquidity, business prospects and overall financial condition of the issuer, (ii) the time period in which there was a significant decline in value, (iii) the significance of the decline and (iv) the analysis of specific credit events.
When there are credit-related losses associated with debt securities for which the Company does not have an intent to
sell and it is more likely than not that it will not be required to sell the security before recovery of its cost basis, the amount of the OTTI related to a credit loss is recognized in earnings and the amount of the OTTI related to other factors (e.g., interest rates, market conditions, etc.) is recorded as a component of other comprehensive income (loss). The amount of the credit loss of an impaired debt security is the difference between the amortized cost and the greater of (i) the present value of expected future cash flows and (ii) the fair value of the security. In instances where no credit loss exists but it is more likely than not that the Company will have to sell the debt security prior to the anticipated recovery, the decline in fair value below amortized cost is recognized as an OTTI in earnings. In periods after the recognition of an OTTI on debt securities, the Company accounts for such securities as if they had been purchased on the measurement date of the OTTI at an amortized cost basis equal to the previous amortized cost basis less the OTTI recognized in earnings. For debt securities for which OTTI were recognized in earnings, the difference between the new amortized cost basis and the cash flows expected to be collected will be accreted or amortized into net investment income. See note 8, “Investment Information” for additional information.
Net investment income includes interest and dividend income together with amortization of market premiums and discounts and is net of investment management and custody fees. Anticipated prepayments and expected maturities are used in applying the interest method for certain investments such as mortgage and other asset-backed securities. When actual prepayments differ significantly from anticipated prepayments, the effective yield is recalculated to reflect actual payments to date and anticipated future payments. The net investment in such securities is adjusted to the amount that would have existed had the new effective yield been applied since the acquisition of the security. Such adjustments, if any, are included in net investment income when determined.


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Investment gains or losses realized on the sale of investments, except for certain fund investments, are determined on a first-in, first-out basis and are reflected in net income. Investment gains or losses realized on the sale of certain fund investments are determined on an average cost basis. Unrealized appreciation or decline in the value of available for sale securities, which are carried at fair value, is excluded from net income and recorded as a separate component of accumulated other comprehensive income, net of applicable deferred income tax.
(h)(i) Derivative Instruments
The Company recognizes all derivative instruments, including embedded derivative instruments, at fair value in its consolidated balance sheets. The Company employs the use of derivative instruments within its operations to mitigate risks arising from assets and liabilities held in foreign currencies as


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well as part of its overall investment strategy. For such instruments, changes in assets and liabilities measured at fair value are recorded as “Net realized gains” in the consolidated statements of income. In addition, the Company’s derivative instruments include amounts related to underwriting activities where an insurance or reinsurance contract meets the accounting definition of a derivative instrument. For such contracts, changes in fair value are reflected in “Other underwriting income” in the consolidated statements of income as the underlying contract originates from the Company’s underwriting operations. For the periods ended 2019, 2018, 2017, and 2016,2017, the Company did not designate any derivative instruments as hedges under the relevant accounting guidance. See note 10, “Derivative Instruments” for additional information.
(i)(j) Reserves for Losses and Loss Adjustment Expenses
Insurance and Reinsurance. The reserve for losses and loss adjustment expenses consists of estimates of unpaid reported losses and loss adjustment expenses and estimates for losses incurred but not reported. The reserve for unpaid reported losses and loss adjustment expenses, established by management based on reports from ceding companies and claims from insureds, excludes estimates of amounts related to losses under high deductible policies, and represents the estimated ultimate cost of events or conditions that have been reported to or specifically identified by the Company. Such reserves are supplemented by management’s estimates of reserves for losses incurred for which reports or claims have not been received. The Company’s reserves are based on a combination of reserving methods, incorporating both Company and industry loss development patterns. The Company selects the initial expected loss and loss adjustment expense ratios based on information derived by its underwriters and actuaries during the initial pricing of the business, supplemented by industry data where appropriate. Such ratios consider, among other things, rate changes and changes in terms and conditions that
have been observed in the market. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are reflected in income in the period in which they are determined. As actual loss information has been reported, the Company has developed its own loss experience and its reserving methods include other actuarial techniques. Over time, such techniques have been given further weight in its reserving process based on the continuing maturation of the Company’s reserves. Inherent in the estimates of ultimate losses and loss adjustment expenses are expected trends in claims severity and frequency and other factors which may vary significantly as claims are settled. Accordingly, ultimate losses and loss adjustment expenses may differ materially from the amounts recorded in the accompanying consolidated financial statements. Losses and loss adjustment expenses are recorded on an undiscounted basis, except for excess workers’
compensation and employers’ liability business written by the Company’s insurance operations.
Mortgage. The reserves for mortgage guaranty insurance losses and loss adjustment expenses are the estimated claim settlement costs on notices of delinquency that have been received by the Company, as well as loan delinquencies that have been incurred but have not been reported by the lenders. Consistent with primary mortgage insurance industry accounting practice, the Company does not establish loss reserves for future claims on insured loans that are not currently delinquent (defined as two consecutive missed payments). The Company establishes loss reserves on a case-by-case basis when insured loans are reported delinquent using estimated claim rates and average claim sizes for each cohort, net of any salvage recoverable. The Company also reserves for delinquencies that have occurred but have not yet been reported to the Company prior to the close of an accounting period. To determine this reserve, the Company estimates the number of delinquencies not yet reported using historical information regarding late reported delinquencies and applies estimated claim rates and claim sizes for the estimated delinquencies not yet reported.
The establishment of reserves across the Company’s segments is an inherently uncertain process, are necessarily based on estimates, and the ultimate net cost may vary from such estimates. The methods for making such estimates and for establishing the resulting liability are reviewed and updated using the most current information available. Any resulting adjustments, which may be material, are reflected in current operations.
(j)(k) Contractholder Receivables and Payables and Collateral Held for Insured Obligations
Certain insurance policies written by the Company’s insurance operations feature large deductibles, primarily in its construction and national accounts lines of business. Under such contracts, the Company is obligated to pay the claimant


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for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in contractholder payables and contractholder receivables, respectively. In the event that the Company is unable to collect from the policyholder, the Company would be liable for such defaulted amounts. Collateral, primarily in the form of letters of credit, cash and trusts, is obtained from the policyholder to mitigate the Company’s credit risk. In the instances where the Company receives collateral in the form of cash, the Company reflects it in “Collateral held for insured obligations.”
(k)(l) Foreign Exchange
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exchange rates at each balance sheet date. Revenues and expenses of such foreign operations are translated at average exchange rates during the year. The net effect of the translation adjustments for foreign operations is included in accumulated other comprehensive income, net of applicable deferred income tax. Monetary assets and liabilities, such as premiums receivable and the reserve for losses and loss adjustment expenses, denominated in foreign currencies are revalued at the exchange rate in effect at the balance sheet date with the resulting foreign exchange gains and losses included in net income. Accounts that are classified as non-monetary, such as deferred acquisition costs and the unearned premium reserves, are not revalued. In the case of foreign currency denominated fixed maturity securities which are classified as “available for sale,” the change in exchange rates between the local currency in which the investments are denominated and the Company’s functional currency at each balance sheet date is included in unrealized appreciation or decline in value of securities, a component of accumulated other comprehensive income, net of applicable deferred income tax.
(l)(m) Income Taxes
Deferred income taxes reflect the expected future tax consequences of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for income tax purposes. A valuation allowance is recorded if it is more likely than not that some or all of a deferred tax asset may not be realized. The Company considers future taxable income and feasible tax planning strategies in assessing the need for a valuation allowance. In the event the Company determines that it will not be able to realize all or part of its deferred income tax assets in the future, an adjustment to the deferred income tax assets would be charged to income in the period in which such determination is made. In addition, if the Company subsequently assesses that the valuation allowance is no longer needed, a benefit would be recorded to income in the period in which such determination
is made. See note 14, “Income Taxes” for additional information.
The Company recognizes a tax benefit where it concludes that it is more likely than not that the tax benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that, in the Company’s judgment, is greater than 50% likely to be realized. The Company records interest and penalties related to unrecognized tax benefits in the provision for income taxes.
(m)(n) Share-Based Payment Arrangements
The Company applies a fair value based measurement method in accounting for its share-based payment arrangements with eligible employees and directors. Compensation expense is
estimated based on the fair value of the award at the grant date and is recognized in net income over the requisite service period with a corresponding increase in shareholders’ equity. No value is attributed to awards that employees forfeit because they fail to satisfy vesting conditions. The Company’s (i) time-based awards generally vest over a three year period with one-third vesting on the first, second and third anniversaries of the grant date and (ii) performance-based awards cliff vest after each three-yearthree year performance period based on achievement of the specified performance criteria. The share-based compensation expense associated with awards that have graded vesting features and vest based on service conditions only is calculated on a straight-line basis over the requisite service period for the entire award. Compensation expense recognized in connection with performance awards is based on the achievement of the specified performance and service conditions. The final measure of compensation expense recognized over the requisite service period reflects the final performance outcome. During the recognition period compensation expense is accrued based on the performance condition that is probable of achievement. For awards granted to retirement-eligible employees where no service is required for the employee to retain the award, the grant date fair value is immediately recognized as compensation expense at the grant date because the employee is able to retain the award without continuing to provide service. For employees near retirement eligibility, attribution of compensation cost is over the period from the grant date to the retirement eligibility date. These charges had no impact on the Company’s cash flows or total shareholders’ equity. See note 20,21, “Share-Based Compensation” for information relating to the Company’s share-based payment awards.
(n)(o) Guaranty Fund and Other Related Assessments
Liabilities for guaranty fund and other related assessments in the Company’s insurance and reinsurance operations are accrued when the Company receives notice that an amount is


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payable, or earlier if a reasonable estimate of the assessment can be made.
(o)(p) Treasury Shares
Treasury shares are common shares purchased by the Company and not subsequently canceled. These shares are recorded at cost and result in a reduction of the Company’s shareholders’ equity in its Consolidated Balance Sheets.
(p)(q) Goodwill and Intangible Assets
Goodwill represents the excess of the purchase price of an acquisition over the fair value of the net assets acquired and is assigned to the applicable reporting unit at acquisition. Goodwill is evaluated for impairment on an annual basis. Impairment tests may be performed more frequently if the facts and circumstances indicate a possible impairment. In performing impairment tests, the Company may first assess


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qualitative factors to determine whether it is more likely than not (that is, more than a 50% probability) that the fair value of a reporting unit exceeds its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in the accounting guidance.
Indefinite-lived intangible assets, such as insurance licenses are evaluated for impairment similar to goodwill. Finite-lived intangible assets and liabilities include the value of acquired insurance and reinsurance contracts, which are estimated based on the present value of future expected cash flows and amortized in proportion to the estimated profits expected to be realized. Other finite-lived intangible assets or liabilities, including favorable or unfavorable contracts, are amortized over their useful lives. Finite-lived intangible assets and liabilities are periodically reviewed for indicators of impairment. An impairment is recognized when the carrying amount is not recoverable from its undiscounted cash flows and is measured as the difference between the carrying amount and fair value.
If goodwill or intangible assets are impaired, such assets are written down to their fair values with the related expense recorded in the Company’s results of operations.
(q)(r) Recent Accounting Pronouncements
Recently Issued Accounting Standards Adopted
The Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standard Update (“ASU”) 2016-01, “Financial Instruments - Overall (Subtopic 825-10) - Recognition and Measurement of Financial Assets and Financial Liabilities,ASU 2016-02, “Leases (Topic 842), which enhances the reportingprovides a new comprehensive model for financial instrumentslease accounting. Topic 842 requires a lessee to recognize a liability to make lease payments (the lease liability) and provides improved financial informationa right-of-use asset representing its right to readersuse the underlying asset for the lease term. The Company adopted the modified retrospective approach of the financial statements. Among other provisions focused on improving the recognition and measurement of financial instruments, the ASU significantly changes the income statement impact of equity instruments andthis standard, that resulted in the recognition of changesa right-of-use asset of $147.9 million as part of other assets and a lease liability of $163.6 million as part of other liabilities in fair valuethe consolidated balance sheet as of financial liabilities attributable to an entity's own credit risk whenJanuary 1, 2019. The
Company de-recognized the fair value option is elected. The ASU requires equity instrumentsliability for deferred rent that do not result in consolidation and are not accounted forwas required under the equityprevious guidance.
In addition, the Company adopted ASU 2018-11, “Leases: Targeted Improvements (Topic 842),” which provides an additional (optional) transition method to adopt the new lease standard. The Company adopted the alternative transition method and elected to utilize a cumulative-effect adjustment to the opening balance of the retained earnings for the year of adoption. As such, the Company’s reporting for the comparative periods prior to the adoption continue to be measured at fair valuepresented in the financial statements in accordance with any changes in fair value recognized in net income rather than other comprehensive income. Upon adoption of this ASU,previous lease accounting guidance. The Company also adopted the practical expedients as a package which allows the Company recordedto not reassess (1) whether any expired or existing contracts are or contain leases (2) the lease classification for any expired or existing leases (3) initial direct costs for any existing leases and (4) to account for the lease and non-lease components as a single lease component. In addition to electing the practical expedients as a package, the Company elected to include hindsight to determine the lease term of existing leases, and made an accounting policy election to not apply the recognition requirements to short-term leases (lease term of less than twelve months). The cumulative effect adjustment to the opening balance of $149.8 million in retained earnings and an offsetting decrease in accumulated other comprehensive income.was zero. The adoption of this ASUthe updated guidance did not have a material impact on the Company's financial position, cash flows, or total comprehensive income, but may increase volatility in the Company's results of operations in future periods.
The Company adopted ASU 2014-09, “Revenue from Contracts with Customers (Topic 606),” which creates a new comprehensive revenue recognition standard that serves as a
single source of revenue guidance for all companies in all industries. The guidance applies to all companies that either enter into contracts with customers to transfer goods or services or enter into contracts for the transfer of non-financial assets, unless those contracts are within the scope of other standards, such as insurance contracts or financial instruments. The ASU also requires enhanced disclosures about revenue. The Company adopted the ASU using the modified retrospective method, whereby the cumulative effect of adoption was recognized as an adjustment to retained earnings at the date of initial application. The impact of the adoption of this ASU was not material, mostly because the accounting for insurance contracts is outside of the scope of ASU 2014-09.
The Company adopted ASU 2016-18, “Statement of Cash Flows (Topic 230) - Restricted Cash,” which requires that restricted cash and restricted cash equivalents be included with cash and cash equivalents in the reconciliation of beginning and ending cash on the statements of cash flows. As a result, transfers between cash and cash equivalents and restricted cash and restricted cash equivalents will no longer be presented on the statement of cash flows. The revised presentation required in this ASU is reflected in the Company’s consolidated statements of cash flows for both periods presented. The adoption of this ASU did not have any effect on the Company’s results of operations financial position or comprehensive income.liquidity.
The Company adopted ASU 2016-15, “Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments,2018-07 “Improvements to Nonemployee Share-Based Payment Accounting,” which addresses several clarifications on the presentation and classification of certain cash receipts and cash payments in the statement of cash flows. Among several other cash flow issues, the ASU specifically addresses the classification of debt prepayment or debt issuance costs, contingent consideration payments made after a business combination and distributions received from equity method investees. The ASU also provides a broader principle on identifying the type of activity of the cash flow item by focusing on the cash flow item’s nature and the predominant source or use of that item. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.
The Company adopted ASU 2016-16, “Income Taxes (Topic 740) - Intra-Entity Transfers of Assets Other than Inventory,” which requires entities to recognize current and deferred income tax resulting from an intra-entity asset transfer when the transfer occurs. Previously, recognition of income tax consequences under GAAP was not allowed until the asset had been sold to a third party. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.


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Recently Issued Accounting Standards Not Yet Adopted
ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326),” was issued in June 2016. The2018 to simplify the accounting for share-based payments granted to nonemployees for goods and services. Under this ASU, changes how entities will measure credit losses for most financial assets and certain other instruments that aren’t measured at fair value through net income. The ASU requires an entity to estimate its lifetime “expected credit loss” and record an allowance that, when deducted from the amortized cost basis of the financial asset, presentsguidance on such payments to nonemployees would be aligned with the net amount expectedrequirements for share-based payments granted to be collected on the financial asset.employees. The ASU is effective for the 2020 first quarter, though early application is permitted in the 2019 first quarter, and should be applied on a modified retrospective basis for the majority of the provisions with a cumulative-effect adjustment to retained earnings at the beginning of the year of adoption. Upon adoption, the Company expects the new standard to have an impact on certain type of investment securities, reinsurance recoverables and contractholder receivables. The Company is currently assessing the impact the implementation of this ASU will have on its consolidated financial statements.
ASU 2017-08 “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities,” was issued in March, 2017. This ASU shortens the amortization period for certain callable debt securities held at a premium and requires the premium to be amortized to the earliest call date. However, the new guidance does not require an accounting change for securities held at a discount whose discount continues to be amortized to maturity. The standard is effective for financial statements issued for fiscal years, and interimreporting periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The adoption of2018. This guidance and the guidance requires a modified retrospective approach with a cumulative-effect adjustment to retained earnings. The adoption of this ASU isprovision did not expected to have a material effect on the Company’s consolidatedCompany's financial statements.position, results of operations or cash flows.
The Company adopted ASU 2018-02 “Income Statement-ReportingStatement Reporting Comprehensive Income (Topic 220) - Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income,” which was issued in February 2018 to allow the reclassification of the stranded tax effects in accumulated other comprehensive income (“AOCI”) resulting from the Tax Cuts and Jobs Act of 2017 (“Tax Cuts Act”). Current guidance requires the effect of a change in tax laws or rates on deferred tax balances to be reported in income from continuing operations in the accounting period that includes the period of enactment, even if the related income tax effects were originally charged or credited directly to AOCI. The amount of the reclassification would include the effect of the change in the U.S. federal corporate income tax rate on the gross deferred tax amounts and related valuation allowances, if any, at the date of the enactment of the Tax Cuts Act related to items in AOCI.


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The updated guidance is effective for reporting periods beginning after December 15, 2018 and is to be applied retrospectively to
each period in which the effect of the Tax Cuts Act related to items remaining in AOCI are recognized or at the beginning of the period of adoption. Early adoption is permitted. The adoption of this ASU isdid not expected to have a material effect on the Company’s results of operations, financial position or liquidity.
The Company adopted ASU 2018-07 “Improvements2017-08 “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities,” which was issued in March 2017. This ASU shortens the amortization period for certain callable debt securities held at a premium and requires the premium to Nonemployee Share-Based Payment Accounting”be amortized to the earliest call date. However, the new guidance does not require an accounting change for securities held at a discount whose discount continues to be amortized to maturity. The standard is effective for financial statements issued for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The adoption of the guidance requires a modified retrospective approach with a cumulative-effect adjustment to retained earnings. The adoption of this ASU did not have a material effect on the Company’s consolidated financial statements.
Recently Issued Accounting Standards Not Yet Adopted
ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326),” was issued in June 20182016. The ASU changes how entities will measure credit losses for most financial assets and certain other instruments that aren’t measured at fair value through net income. The ASU requires an entity to simplifyestimate its lifetime “expected credit loss” and record an allowance that, when deducted from the accounting for share-based payments granted to nonemployees for goods and services. Under this ASU, mostamortized cost basis of the guidancefinancial asset, presents the net amount expected to be collected on such payments to nonemployees would be aligned with the requirements for share-based payments granted to employees.financial asset. The ASU is effective for reporting periodsthe 2020 first quarter, and should be applied on a modified retrospective basis for the majority of the provisions with a cumulative-effect adjustment to retained earnings at the beginning after December 15, 2018.of the year of adoption. Upon adoption, the Company expects the new standard to have an impact on certain type of investment securities, reinsurance recoverables and contractholder receivables. The Company has granted share-based payment awards only to employees as defined by accounting guidance and does not expect this guidance to have a material impact on its consolidated financial statements.
ASU 2018-11,“Leases: Targeted Improvements (Topic 842),” was issued in July, 2018. This ASU will ease implementation of the lease standard (ASU 2016-02). The guidance provides an alternative transition method by which leases are recognized at the date of adoption. Entities that elect this transition option will still be required to adopt the new leases standard usingASU on January 1, 2020 by applying the modified retrospective transition method required by the standard, but they will recognizeapproach. The Company anticipates recording a cumulative-effect adjustment to the opening balance of retained earnings, in the period of adoption rather than in the earliest period presented. The Company will adopt this alternative transition method as of January 1, 2019 for leases existing at the date of adoption. The Company will also elect certain practical expedients that allow the Companywhich is not expected to reassess existing leases under the new guidance. Basedhave a material effect on the Company’s analysis, the primary impact of adoption will be the recognition of a right of use asset and a lease liability for operating leases pertaining to the Company’s real estate portfolio that are expected to represent less than one percent of the Company’s Total Assets and Total Liabilities, respectively.consolidated financial statements.
ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement,” was issued in August, 2018. The ASU modifies the disclosure requirements on fair value measurement as part of the disclosure framework project with the objective to improve the effectiveness of disclosures in the notes to the financial statements. The amendments in this update allow for removal of (1) the amount
and reasons for transfer between Level 1 and Level 2 of the fair value hierarchy; (2) the policy for transfers between levels; and (3) the valuation processes for Level 3 fair value measurements. The ASU is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. The Company is currently evaluating the impact of the new guidance on its consolidated financial statements and does not expect this guidance to have a material effect on the Company’s consolidated financial statements.


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ASU 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40),” was issued in the 2018 third quarter. This ASU aligns the requirements for capitalizing certain implementation costs incurred in a cloud computing arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software.The standard is effective for financial statements issued for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted. The guidance provides flexibility in adoption, allowing for either retrospective adjustment or prospective adjustment for all implementation costs incurred after the date of adoption. The Company is currently evaluating the impact of the new guidance on the consolidated financial statements. The Company is currently evaluating the impact of the new guidance on its consolidated financial statements and does not expect this guidance to have a material effect on the Company’s consolidated financial statements.
4.    Segment Information
The Company classifies its businesses into three3 underwriting segments — insurance, reinsurance and mortgage — and two2 other operating segments — ‘other’ and corporate (non-underwriting). The Company determined its reportable segments using the management approach described in accounting guidance regarding disclosures about segments of an enterprise and related information. The accounting policies of the segments are the same as those used for the preparation of the Company’s consolidated financial statements. Intersegment business is allocated to the segment accountable for the underwriting results.
The Company’s insurance, reinsurance and mortgage segments each have managers who are responsible for the overall profitability of their respective segments and who are directly accountable to the Company’s chief operating decision makers, the President and Chief Executive Officer of Arch Capital and the Chief Financial Officer of Arch Capital. The chief operating decision makers do not assess performance, measure return on equity or make resource allocation decisions on a line of business basis. Management measures segment performance for its three underwriting segments based on underwriting income or loss. The Company does not manage its assets by underwriting segment, with the exception of goodwill and


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intangible assets, and, accordingly, investment income is not allocated to each underwriting segment.
The insurance segment consists of the Company’s insurance underwriting units which offer specialty product lines on a worldwide basis. Product lines include:
Construction and national accounts: primary and excess casualty coverages to middle and large accounts in the construction industry and a wide range of products for middle and large national accounts, specializing in loss sensitive primary casualty insurance programs (including
large deductible, self-insured retention and retrospectively rated programs).
Excess and surplus casualty: primary and excess casualty insurance coverages, including middle market energy business, and contract binding, which primarily provides casualty coverage through a network of appointed agents to small and medium risks.
Lenders products: collateral protection, debt cancellation and service contract reimbursement products to banks, credit unions, automotive dealerships and original equipment manufacturers and other specialty programs that pertain to automotive lending and leasing.
Professional lines: directors’ and officers’ liability, errors and omissions liability, employment practices liability, fiduciary liability, crime, professional indemnity and other financial related coverages for corporate, private equity, venture capital, real estate investment trust, limited partnership, financial institution and not-for-profit clients of all sizes and medical professional and general liability insurance coverages for the healthcare industry. The business is predominately written on a claims-made basis.
Programs: primarily package policies, underwriting workers’ compensation and umbrella liability business in support of desirable package programs, targeting program managers with unique expertise and niche products offering general liability, commercial automobile, inland marine and property business with minimal catastrophe exposure.
Property, energy, marine and aviation: primary and excess general property insurance coverages, including catastrophe-exposed property coverage, for commercial clients. Coverages for marine include hull, war, specie and liability. Aviation and stand-alone terrorism are also offered.
Travel, accident and health: specialty travel and accident and related insurance products for individual, group travelers, travel agents and suppliers, as well as accident and health, which provides accident, disability and medical plan insurance coverages for employer groups, medical plan members, students and other participant groups.
Other: includes alternative market risks (including captive insurance programs), excess workers’ compensation and employer’s liability insurance coverages for qualified self-insured groups, associations and trusts, and contract and commercial surety coverages, including contract bonds (payment and performance bonds) primarily for medium and large contractors and commercial surety bonds for Fortune 1000 companies and smaller transaction business programs.


ARCH CAPITAL110
Construction and national accounts: primary and excess casualty coverages to middle and large accounts in the construction industry and a wide range of products for middle and large national accounts, specializing in loss sensitive primary casualty insurance programs (including large deductible, self-insured retention and retrospectively rated programs).
2018 FORM 10-K
Excess and surplus casualty: primary and excess casualty insurance coverages, including middle market energy business, and contract binding, which primarily provides casualty coverage through a network of appointed agents to small and medium risks.
Lenders products: collateral protection, debt cancellation and service contract reimbursement products to banks, credit unions, automotive dealerships and original equipment manufacturers and other specialty programs that pertain to automotive lending and leasing.
Professional lines: directors’ and officers’ liability, errors and omissions liability, employment practices liability, fiduciary liability, crime, professional indemnity and other financial related coverages for corporate, private equity, venture capital, real estate investment trust, limited partnership, financial institution and not-for-profit clients of all sizes and medical professional and general liability insurance coverages for the healthcare industry. The business is predominately written on a claims-made basis.
Programs: primarily package policies, underwriting workers’ compensation and umbrella liability business in support of desirable package programs, targeting program managers with unique expertise and niche products offering general liability, commercial automobile, inland marine and property business with minimal catastrophe exposure.
Property, energy, marine and aviation: primary and excess general property insurance coverages, including catastrophe-exposed property coverage, for commercial clients. Coverages for marine include hull, war, specie and liability. Aviation and stand-alone terrorism are also offered.
Travel, accident and health: specialty travel and accident and related insurance products for individual, group travelers, travel agents and suppliers, as well as accident and health, which provides accident, disability and medical plan insurance coverages for employer groups, medical plan members, students and other participant groups.


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Other: includes alternative market risks (including captive insurance programs), excess workers’ compensation and employer’s liability insurance coverages for qualified self-insured groups, associations and trusts, and contract and commercial surety coverages, including contract bonds (payment and performance bonds) primarily for medium and large contractors and commercial surety bonds for Fortune 1000 companies and smaller transaction business programs.
The reinsurance segment consists of the Company’s reinsurance underwriting units which offer specialty product lines on a worldwide basis. Product lines include:
Casualty: provides coverage to ceding company clients on third party liability and workers’ compensation exposures from ceding company clients, primarily on a treaty basis. Exposures include, among others, executive assurance, professional liability, workers’ compensation, excess and umbrella liability, excess motor and healthcare business.
Casualty: provides coverage to ceding company clients on third party liability and workers’ compensation exposures from ceding company clients, primarily on a treaty basis. Exposures include, among others, executive assurance, professional liability, workers’ compensation, excess and umbrella liability, excess motor and healthcare business.
Marine and aviation: provides coverage for energy, hull, cargo, specie, liability and transit, and aviation business, including airline and general aviation risks. Business written may also include space business, which includes coverages for satellite assembly, launch and operation for commercial space programs.
Other specialty: provides coverage to ceding company clients for proportional motor and other lines including surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and political risk.
Property catastrophe: provides protection for most catastrophic losses that are covered in the underlying policies written by reinsureds, including hurricane, earthquake, flood, tornado, hail and fire, and coverage for other perils on a case-by-case basis. Property catastrophe reinsurance provides coverage on an excess of loss basis when aggregate losses and loss adjustment expense from a single occurrence of a covered peril exceed the retention specified in the contract.
Property excluding property catastrophe: provides coverage for both personal lines and commercial property exposures and principally covers buildings, structures, equipment and contents. The primary perils in this business include fire, explosion, collapse, riot, vandalism, wind, tornado, flood and earthquake. Business is assumed on both a proportional and excess of loss basis. In addition, facultative business is written which focuses on commercial property risks on an excess of loss basis.
Other. includes life reinsurance business on both a proportional and non-proportional basis, casualty clash business and, in limited instances, non-traditional business which is intended to provide insurers with risk

Marine and aviation: provides coverage for energy, hull, cargo, specie, liability and transit, and aviation business, including airline and general aviation risks. Business written may also include space business, which includes coverages for satellite assembly, launch and operation for commercial space programs.

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Other specialty: provides coverage to ceding company clients for proportional motor and other lines including surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and political risk.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Property catastrophe: provides protection for most catastrophic losses that are covered in the underlying policies written by reinsureds, including hurricane, earthquake, flood, tornado, hail and fire, and coverage for other perils on a case-by-case basis. Property catastrophe reinsurance provides coverage on an excess of loss basis when aggregate losses and loss adjustment expense from a single occurrence of a covered peril exceed the retention specified in the contract.

Property excluding property catastrophe: provides coverage for both personal lines and commercial property exposures and principally covers buildings, structures, equipment and contents. The primary perils in this business include fire, explosion, collapse, riot, vandalism, wind, tornado, flood and earthquake. Business is assumed
on both a proportional and excess of loss basis. In addition, facultative business is written which focuses on commercial property risks on an excess of loss basis.
Other. includes life reinsurance business on both a proportional and non-proportional basis, casualty clash business and, in limited instances, non-traditional business which is intended to provide insurers with risk management solutions that complement traditional reinsurance.
The mortgage segment includes the Company’s U.S. and international mortgage insurance and reinsurance operations as well as government sponsored enterprise (“GSE”) credit-risk sharing transactions. AMIC and UGRIC (combined “Arch MI U.S.”) are approved as eligible mortgage insurers by Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”), each a government sponsored enterprise, or “GSE.”
The corporate (non-underwriting) segment results include net investment income, other income (loss), other expenses incurred by the Company, interest expense, net realized gains
or losses, net impairment losses included in earnings, equity in net income or loss of investments accounted for using the equity method, net foreign exchange gains or losses, transaction costs and other, income taxes and items related to the Company’s non-cumulative preferred shares. Such amounts exclude the results of the ‘other’ segment.
The ‘other’ segment includes the results of Watford Re (see note 11, “Variable Interest Entity and Noncontrolling Interests”). Watford Re has its own management and board of directors that is responsible for the overall profitability of the ‘other’ segment. For the ‘other’ segment, performance is measured based on net income or loss.






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The following tables summarize the Company’s underwriting income or loss by segment, together with a reconciliation of underwriting income or loss to net income available to Arch common shareholders, summary information regarding net premiums written and earned by major line of business and net premiums written by location:
Year Ended December 31, 2018Year Ended December 31, 2019
Insurance Reinsurance Mortgage Sub-Total Other TotalInsurance Reinsurance Mortgage Sub-Total Other Total
Gross premiums written (1)$3,262,332
 $1,912,522
 $1,360,708
 $6,534,423
 $735,015
 $6,961,004
$3,907,993
 $2,323,223
 $1,466,265
 $7,695,645
 $754,881
 $8,138,960
Premiums ceded(1,050,207) (539,950) (202,833) (1,791,851) (130,840) (1,614,257)(1,266,267) (720,500) (204,509) (2,189,440) (222,019) (2,099,893)
Net premiums written2,212,125
 1,372,572
 1,157,875
 4,742,572
 604,175
 5,346,747
2,641,726
 1,602,723
 1,261,756
 5,506,205
 532,862
 6,039,067
Change in unearned premiums(6,464) (111,356) 28,361
 (89,459) (25,313) (114,772)(244,646) (136,334) 104,584
 (276,396) 23,827
 (252,569)
Net premiums earned2,205,661
 1,261,216
 1,186,236
 4,653,113
 578,862
 5,231,975
2,397,080
 1,466,389
 1,366,340
 5,229,809
 556,689
 5,786,498
Other underwriting income (loss)
 (682) 13,033
 12,351
 2,722
 15,073

 6,444
 16,005
 22,449
 2,412
 24,861
Losses and loss adjustment expenses(1,520,680) (846,882) (81,289) (2,448,851) (441,255) (2,890,106)(1,615,475) (1,011,329) (53,513) (2,680,317) (453,135) (3,133,452)
Acquisition expenses(349,702) (211,280) (118,595) (679,577) (125,558) (805,135)(361,614) (239,032) (134,319) (734,965) (105,980) (840,945)
Other operating expenses(364,138) (133,350) (142,432) (639,920) (37,889) (677,809)(454,770) (141,484) (153,092) (749,346) (51,651) (800,997)
Underwriting income (loss)$(28,859) $69,022
 $856,953
 897,116
 (23,118) 873,998
$(34,779) $80,988
 $1,041,421
 1,087,630
 (51,665) 1,035,965
                      
Net investment income      437,958
 125,675
 563,633
      491,067
 136,671
 627,738
Net realized gains (losses)      (284,429) (120,915) (405,344)      351,202
 15,161
 366,363
Net impairment losses recognized in earnings      (2,829) 
 (2,829)      (3,165) 
 (3,165)
Equity in net income (loss) of investments accounted for using the equity method      45,641
 
 45,641
      123,672
 
 123,672
Other income (loss)      2,419
 
 2,419
      2,233
 
 2,233
Corporate expenses      (58,608) 
 (58,608)      (65,667) 
 (65,667)
Transaction costs and other      (11,386) (9,000) (20,386)      (14,444) 
 (14,444)
Amortization of intangible assets      (105,670) 
 (105,670)      (82,104) 
 (82,104)
Interest expense      (101,019) (19,465) (120,484)      (93,735) (27,137) (120,872)
Net foreign exchange gains (losses)      58,711
 10,691
 69,402
      (9,252) (11,357) (20,609)
Income (loss) before income taxes      877,904
 (36,132) 841,772
      1,787,437
 61,673
 1,849,110
Income tax expense      (113,924) (27) (113,951)      (155,790) (20) (155,810)
Net income (loss)      763,980
 (36,159) 727,821
      1,631,647
 61,653
 1,693,300
Dividends attributable to redeemable noncontrolling interests      
 (18,357) (18,357)      
 (16,909) (16,909)
Amounts attributable to nonredeemable noncontrolling interests      
 48,507
 48,507
      
 (40,072) (40,072)
Net income (loss) available to Arch      763,980
 (6,009) 757,971
      1,631,647
 4,672
 1,636,319
Preferred dividends      (41,645) 
 (41,645)      (41,612) 
 (41,612)
Loss on redemption of preferred shares      (2,710) 
 (2,710)      
 
 
Net income (loss) available to Arch common shareholders      $719,625
 $(6,009) $713,616
      $1,590,035
 $4,672
 $1,594,707
                      
Underwriting Ratios                      
Loss ratio68.9% 67.1% 6.9% 52.6% 76.2% 55.2%67.4% 69.0% 3.9% 51.3% 81.4% 54.2%
Acquisition expense ratio15.9% 16.8% 10.0% 14.6% 21.7% 15.4%15.1% 16.3% 9.8% 14.1% 19.0% 14.5%
Other operating expense ratio16.5% 10.6% 12.0% 13.8% 6.5% 13.0%19.0% 9.6% 11.2% 14.3% 9.3% 13.8%
Combined ratio101.3% 94.5% 28.9% 81.0% 104.4% 83.6%101.5% 94.9% 24.9% 79.7% 109.7% 82.5%
                      
Goodwill and intangible assets$114,012
 $
 $513,258
 $627,270
 $7,650
 $634,920
$289,021
 $2,516
 $438,896
 $730,433
 $7,650
 $738,083
                      
Total investable assets      $19,566,861
 $2,757,663
 $22,324,524
      $22,285,676
 $2,704,589
 $24,990,265
Total assets      28,845,473
 3,372,856
 32,218,329
      34,374,468
 3,510,893
 37,885,361
Total liabilities      19,518,395
 2,262,255
 21,780,650
      22,977,636
 2,592,173
 25,569,809
(1)Certain amounts included in the gross premiums written of each segment are related to intersegment transactions. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.




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Year Ended December 31, 2017Year Ended December 31, 2018
Insurance Reinsurance Mortgage Sub-Total Other TotalInsurance Reinsurance Mortgage Sub-Total Other Total
Gross premiums written (1)$3,081,086
 $1,640,399
 $1,368,138
 $6,088,254
 $600,304
 $6,368,425
$3,262,332
 $1,912,522
 $1,360,708
 $6,534,423
 $735,015
 $6,961,004
Premiums ceded(958,646) (465,925) (256,796) (1,679,998) (47,187) (1,407,052)(1,050,207) (539,950) (202,833) (1,791,851) (130,840) (1,614,257)
Net premiums written2,122,440
 1,174,474
 1,111,342
 4,408,256
 553,117
 4,961,373
2,212,125
 1,372,572
 1,157,875
 4,742,572
 604,175
 5,346,747
Change in unearned premiums(9,422) (31,853) (54,176) (95,451) (21,390) (116,841)(6,464) (111,356) 28,361
 (89,459) (25,313) (114,772)
Net premiums earned2,113,018
 1,142,621
 1,057,166
 4,312,805
 531,727
 4,844,532
2,205,661
 1,261,216
 1,186,236
 4,653,113
 578,862
 5,231,975
Other underwriting income
 11,336
 15,737
 27,073
 3,180
 30,253

 (682) 13,033
 12,351
 2,722
 15,073
Losses and loss adjustment expenses(1,622,444) (773,923) (134,677) (2,531,044) (436,402) (2,967,446)(1,520,680) (846,882) (81,289) (2,448,851) (441,255) (2,890,106)
Acquisition expenses, net(323,639) (221,250) (100,598) (645,487) (129,971) (775,458)(349,702) (211,280) (118,595) (679,577) (125,558) (805,135)
Other operating expenses(359,524) (146,663) (146,336) (652,523) (31,928) (684,451)(364,138) (133,350) (142,432) (639,920) (37,889) (677,809)
Underwriting income (loss)$(192,589) $12,121
 $691,292
 510,824
 (63,394) 447,430
$(28,859) $69,022
 $856,953
 897,116
 (23,118) 873,998
                      
Net investment income      382,072
 88,800
 470,872
      437,958
 125,675
 563,633
Net realized gains (losses)      148,798
 343
 149,141
      (284,429) (120,915) (405,344)
Net impairment losses recognized in earnings      (7,138) 
 (7,138)      (2,829) 
 (2,829)
Equity in net income (loss) of investments accounted for using the equity method      142,286
 
 142,286
      45,641
 
 45,641
Other income (loss)      (2,571) 
 (2,571)      2,419
 
 2,419
Corporate expenses      (61,602) 
 (61,602)      (58,608) 
 (58,608)
Transaction costs and other      (22,150) 
 (22,150)      (11,386) (9,000) (20,386)
Amortization of intangible assets      (125,778) 
 (125,778)      (105,670) 
 (105,670)
Interest expense      (103,592) (13,839) (117,431)      (101,019) (19,465) (120,484)
Net foreign exchange gains (losses)      (113,345) (2,437) (115,782)      58,711
 10,691
 69,402
Income before income taxes      747,804
 9,473
 757,277
Income (loss) before income taxes      877,904
 (36,132) 841,772
Income tax (expense) benefit      (127,547) (21) (127,568)      (113,924) (27) (113,951)
Net income      620,257
 9,452
 629,709
Net income (loss)      763,980
 (36,159) 727,821
Dividends attributable to redeemable noncontrolling interests      
 (18,344) (18,344)      
 (18,357) (18,357)
Amounts attributable to nonredeemable noncontrolling interests      
 7,913
 7,913
      
 48,507
 48,507
Net income (loss) available to Arch      620,257
 (979) 619,278
      763,980
 (6,009) 757,971
Preferred dividends      (46,041) 
 (46,041)      (41,645) 
 (41,645)
Loss on redemption of preferred shares      (6,735) 
 (6,735)      (2,710) 
 (2,710)
Net income (loss) available to Arch common shareholders      $567,481
 $(979) $566,502
      $719,625
 $(6,009) $713,616
                      
Underwriting Ratios                      
Loss ratio76.8% 67.7% 12.7% 58.7% 82.1% 61.3%68.9% 67.1% 6.9% 52.6% 76.2% 55.2%
Acquisition expense ratio15.3% 19.4% 9.5% 15.0% 24.4% 16.0%15.9% 16.8% 10.0% 14.6% 21.7% 15.4%
Other operating expense ratio17.0% 12.8% 13.8% 15.1% 6.0% 14.1%16.5% 10.6% 12.0% 13.8% 6.5% 13.0%
Combined ratio109.1% 99.9% 36.0% 88.8% 112.5% 91.4%101.3% 94.5% 28.9% 81.0% 104.4% 83.6%
                      
Goodwill and intangible assets$22,310
 $211
 $622,440
 $644,961
 $7,650
 $652,611
$114,012
 $
 $513,258
 $627,270
 $7,650
 $634,920
                      
Total investable assets      $19,716,421
 $2,440,067
 $22,156,488
      $19,566,861
 $2,757,663
 $22,324,524
Total assets      29,037,004
 3,014,654
 32,051,658
      28,845,473
 3,372,856
 32,218,329
Total liabilities      19,959,574
 1,846,149
 21,805,723
      19,518,395
 2,262,255
 21,780,650
(1)Certain amounts included in the gross premiums written of each segment are related to intersegment transactions. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.






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Year Ended December 31, 2016Year Ended December 31, 2017
Insurance Reinsurance Mortgage Sub-Total Other TotalInsurance Reinsurance Mortgage Sub-Total Other Total
Gross premiums written (1)$3,027,049
 $1,494,397
 $499,725
 $5,019,363
 $535,094
 $5,202,134
$3,081,086
 $1,640,399
 $1,368,138
 $6,088,254
 $600,304
 $6,368,425
Premiums ceded(954,768) (440,541) (108,259) (1,501,760) (21,306) (1,170,743)(958,646) (465,925) (256,796) (1,679,998) (47,187) (1,407,052)
Net premiums written2,072,281
 1,053,856
 391,466
 3,517,603
 513,788
 4,031,391
2,122,440
 1,174,474
 1,111,342
 4,408,256
 553,117
 4,961,373
Change in unearned premiums1,623
 2,376
 (104,750) (100,751) (45,818) (146,569)(9,422) (31,853) (54,176) (95,451) (21,390) (116,841)
Net premiums earned2,073,904
 1,056,232
 286,716
 3,416,852
 467,970
 3,884,822
2,113,018
 1,142,621
 1,057,166
 4,312,805
 531,727
 4,844,532
Other underwriting income
 36,403
 17,024
 53,427
 3,746
 57,173

 11,336
 15,737
 27,073
 3,180
 30,253
Losses and loss adjustment expenses(1,359,313) (475,762) (28,943) (1,864,018) (321,581) (2,185,599)(1,622,444) (773,923) (134,677) (2,531,044) (436,402) (2,967,446)
Acquisition expenses, net(304,050) (212,258) (21,790) (538,098) (129,527) (667,625)(323,639) (221,250) (100,598) (645,487) (129,971) (775,458)
Other operating expenses(350,260) (142,616) (96,672) (589,548) (25,163) (614,711)(359,524) (146,663) (146,336) (652,523) (31,928) (684,451)
Underwriting income (loss)$60,281
 $261,999
 $156,335
 478,615
 (4,555) 474,060
$(192,589) $12,121
 $691,292
 510,824
 (63,394) 447,430
                      
Net investment income      277,193
 89,549
 366,742
      382,072
 88,800
 470,872
Net realized gains (losses)      69,586
 68,000
 137,586
      148,798
 343
 149,141
Net impairment losses recognized in earnings      (30,442) 
 (30,442)      (7,138) 
 (7,138)
Equity in net income (loss) of investments accounted for using the equity method      48,475
 
 48,475
      142,286
 
 142,286
Other income (loss)      (800) 
 (800)      (2,571) 
 (2,571)
Corporate expenses      (49,396) 
 (49,396)      (61,602) 
 (61,602)
Transaction costs and other      (41,729) 
 (41,729)      (22,150) 
 (22,150)
Amortization of intangible assets      (19,343) 
 (19,343)      (125,778) 
 (125,778)
Interest expense      (53,464) (12,788) (66,252)      (103,592) (13,839) (117,431)
Net foreign exchange gains (losses)      31,409
 5,242
 36,651
      (113,345) (2,437) (115,782)
Income before income taxes      710,104
 145,448
 855,552
Income (loss) before income taxes      747,804
 9,473
 757,277
Income tax benefit      (31,375) 1
 (31,374)      (127,547) (21) (127,568)
Net income      678,729
 145,449
 824,178
      620,257
 9,452
 629,709
Dividends attributable to redeemable noncontrolling interests      
 (18,349) (18,349)      
 (18,344) (18,344)
Amounts attributable to nonredeemable noncontrolling interests      
 (113,091) (113,091)      
 7,913
 7,913
Net income available to Arch      678,729
 14,009
 692,738
Net income (loss) available to Arch      620,257
 (979) 619,278
Preferred dividends      (28,070) 
 (28,070)      (46,041) 
 (46,041)
Net income available to Arch common shareholders      $650,659
 $14,009
 $664,668
Loss on redemption of preferred shares      (6,735) 
 (6,735)
Net income (loss) available to Arch common shareholders      $567,481
 $(979) $566,502
                      
Underwriting Ratios                      
Loss ratio65.5% 45.0% 10.1% 54.6% 68.7% 56.3%76.8% 67.7% 12.7% 58.7% 82.1% 61.3%
Acquisition expense ratio14.7% 20.1% 7.6% 15.7% 27.7% 17.2%15.3% 19.4% 9.5% 15.0% 24.4% 16.0%
Other operating expense ratio16.9% 13.5% 33.7% 17.3% 5.4% 15.8%17.0% 12.8% 13.8% 15.1% 6.0% 14.1%
Combined ratio97.1% 78.6% 51.4% 87.6% 101.8% 89.3%109.1% 99.9% 36.0% 88.8% 112.5% 91.4%
                      
Goodwill and intangible assets$25,206
 $956
 $747,741
 $773,903
 $7,650
 $781,553
$22,310
 $211
 $622,440
 $644,961
 $7,650
 $652,611
                      
Total investable assets      $18,636,189
 $1,857,763
 $20,493,952
      $19,716,421
 $2,440,067
 $22,156,488
Total assets      26,989,359
 2,382,750
 29,372,109
      29,037,004
 3,014,654
 32,051,658
Total liabilities      18,855,858
 1,205,126
 20,060,984
      19,959,574
 1,846,149
 21,805,723
(1)Certain amounts included in the gross premiums written of each segment are related to intersegment transactions. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.




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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






The following tables provide summary information regarding net premiums written and earned by major line of business and net premiums written by underwriting location:
INSURANCE SEGMENTYear Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Net premiums earned (1)          
Professional lines (2)$458,425
 $444,137
 $431,391
$499,224
 $458,425
 $444,137
Programs389,186
 364,639
 357,715
414,103
 389,186
 364,639
Property, energy, marine and aviation298,966
 205,069
 173,779
Construction and national accounts
322,440
 324,517
 322,072
325,687
 322,440
 324,517
Travel, accident and health297,147
 257,358
 219,169
305,085
 297,147
 257,358
Property, energy, marine and aviation205,069
 173,779
 188,938
Excess and surplus casualty (3)172,424
 195,154
 219,046
200,615
 172,424
 195,154
Lenders products94,248
 97,043
 98,517
66,079
 94,248
 97,043
Other (4)266,722
 256,391
 237,056
287,321
 266,722
 256,391
Total$2,205,661
 $2,113,018
 $2,073,904
$2,397,080
 $2,205,661
 $2,113,018
          
Net premiums written by underwriting location (1)          
United States$1,736,651
 $1,715,467
 $1,690,208
$1,983,476
 $1,736,651
 $1,715,467
Europe401,974
 344,836
 327,034
559,214
 401,974
 344,836
Other73,500
 62,137
 55,039
99,036
 73,500
 62,137
Total$2,212,125
 $2,122,440
 $2,072,281
$2,641,726
 $2,212,125
 $2,122,440
(1)Insurance segment results include premiums assumed through intersegment transactions and exclude premiums ceded through intersegment transactions.
(2)Includes professional liability, executive assurance and healthcare business.
(3)Includes casualty and contract binding business.
(4)Includes alternative markets, excess workers' compensation and surety business.
REINSURANCE SEGMENTYear Ended December 31,Year Ended December 31,
2018
2017
20162019
2018
2017
Net premiums earned (1)          
Other specialty (2)$474,568
 $408,566
 $329,994
$478,517
 $474,568
 $408,566
Casualty (3)347,034
 341,122
 300,160
429,288
 347,034
 341,122
Property excluding property catastrophe287,788
 255,453
 282,018
362,841
 287,788
 255,453
Property catastrophe75,249
 73,300
 73,803
90,934
 75,249
 73,300
Marine and aviation39,238
 36,214
 52,579
48,274
 39,238
 36,214
Other (4)37,339
 27,966
 17,678
56,535
 37,339
 27,966
Total$1,261,216
 $1,142,621
 $1,056,232
$1,466,389
 $1,261,216
 $1,142,621
          
Net premiums written by underwriting location (1)          
United States$413,550
 $399,379
 $432,683
$529,943
 $413,550
 $399,379
Bermuda487,523
 350,681
 277,625
578,618
 487,523
 350,681
Europe and other471,499
 424,414
 343,548
494,162
 471,499
 424,414
Total$1,372,572
 $1,174,474
 $1,053,856
$1,602,723
 $1,372,572
 $1,174,474
(1)Reinsurance segment results include premiums assumed through intersegment transactions and exclude premiums ceded through intersegment transactions.
(2)    Includes proportional motor, surety, accident and health, workers’ compensation catastrophe, agriculture, trade credit and other.
(3)Includes executive assurance, professional liability, workers’ compensation, excess motor, healthcare and other.
(4)Includes life, casualty clash and other.






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MORTGAGE SEGMENTYear Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Net premiums earned by underwriting location          
United States$1,009,765
 $901,858
 $155,929
$1,134,849
 $1,009,765
 $901,858
Other176,471
 155,308
 130,787
231,491
 176,471
 155,308
Total$1,186,236
 $1,057,166
 $286,716
$1,366,340
 $1,186,236
 $1,057,166
          
Net premiums written by underwriting location          
United States$948,323
 $903,329
 $186,826
$1,032,868
 $948,323
 $903,329
Other209,552
 208,013
 204,640
228,888
 209,552
 208,013
Total$1,157,875
 $1,111,342
 $391,466
$1,261,756
 $1,157,875
 $1,111,342


OTHER SEGMENTYear Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Net premiums earned (1)          
Casualty (2)$277,589
 $333,275
 $320,767
$246,894
 $277,589
 $333,275
Other specialty (3)204,485
 135,855
 101,768
185,547
 204,485
 135,855
Property catastrophe10,998
 12,690
 11,421
13,399
 10,998
 12,690
Property excluding property catastrophe2,802
 1,392
 1,436
3,503
 2,802
 1,392
Marine and aviation420
 1,024
 1,811
Other (4)82,568
 47,491
 30,767
107,346
 82,988
 48,515
Total$578,862
 $531,727
 $467,970
$556,689
 $578,862
 $531,727
          
Net premiums written by underwriting location (1)          
United States$49,800
 $11,750
 $5,714
$127,176
 $49,800
 $11,750
Europe91,635
 91,463
 50,195
52,065
 91,635
 91,463
Bermuda462,740
 449,904
 457,879
353,621
 462,740
 449,904
Total$604,175
 $553,117
 $513,788
$532,862
 $604,175
 $553,117
(1)Other segment results include premiums assumed through intersegment transactions and exclude premiums ceded through intersegment transactions.
(2)Includes professional liability, excess motor, programs and other.
(3)Includes proportional motor and other.
(4)Includes mortgage and other.






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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






5.    Reserve for Losses and Loss Adjustment Expenses



The following table represents an analysis of losses and loss adjustment expenses and a reconciliation of the beginning and ending reserve for losses and loss adjustment expenses:
 Year Ended December 31,
 2019 2018 2017
Reserve for losses and loss adjustment expenses at beginning of year$11,853,297
 $11,383,792
 $10,200,960
Unpaid losses and loss adjustment expenses recoverable2,814,291
 2,464,910
 2,083,575
Net reserve for losses and loss adjustment expenses at beginning of year9,039,006
 8,918,882
 8,117,385
      
Net incurred losses and loss adjustment expenses relating to losses occurring in:     
Current year3,297,037
 3,162,818
 3,205,428
Prior years(163,585) (272,712) (237,982)
Total net incurred losses and loss adjustment expenses3,133,452
 2,890,106
 2,967,446
      
Net losses and loss adjustment expense reserves of acquired business (1)209,486
 
 
      
Retroactive reinsurance transactions (2)(225,500) (420,404) 
      
Foreign exchange (gains) losses36,003
 (143,414) 186,963
      
Net paid losses and loss adjustment expenses relating to losses occurring in:     
Current year(621,202) (524,048) (505,424)
Prior years(1,762,053) (1,682,116) (1,847,488)
Total net paid losses and loss adjustment expenses(2,383,255) (2,206,164) (2,352,912)
      
Net reserve for losses and loss adjustment expenses at end of year9,809,192
 9,039,006
 8,918,882
Unpaid losses and loss adjustment expenses recoverable4,082,650
 2,814,291
 2,464,910
Reserve for losses and loss adjustment expenses at end of year$13,891,842
 $11,853,297
 $11,383,792
 Year Ended December 31,
 2018 2017 2016
Reserve for losses and loss adjustment expenses at beginning of year$11,383,792
 $10,200,960
 $9,125,250
Unpaid losses and loss adjustment expenses recoverable2,464,910
 2,083,575
 1,828,837
Net reserve for losses and loss adjustment expenses at beginning of year8,918,882
 8,117,385
 7,296,413
      
Net incurred losses and loss adjustment expenses relating to losses occurring in:     
Current year3,162,818
 3,205,428
 2,455,563
Prior years(272,712) (237,982) (269,964)
Total net incurred losses and loss adjustment expenses2,890,106
 2,967,446
 2,185,599
      
Net losses and loss adjustment expense reserves of acquired business (1)
 
 551,096
      
Retroactive reinsurance transaction (2)(420,404) 
 
      
Foreign exchange (gains) losses(143,414) 186,963
 (102,367)
      
Net paid losses and loss adjustment expenses relating to losses occurring in:     
Current year(524,048) (505,424) (445,700)
Prior years(1,682,116) (1,847,488) (1,367,656)
Total net paid losses and loss adjustment expenses(2,206,164) (2,352,912) (1,813,356)
      
Net reserve for losses and loss adjustment expenses at end of year9,039,006
 8,918,882
 8,117,385
Unpaid losses and loss adjustment expenses recoverable2,814,291
 2,464,910
 2,083,575
Reserve for losses and loss adjustment expenses at end of year$11,853,297
 $11,383,792
 $10,200,960

(1)The 20162019 amount primarily related to the acquisition of UGC.Barbican.
(2)During the 2019 first quarter and 2018 second quarter, a subsidiary of the Company entered into atwo separate retroactive reinsurance transactiontransactions with a third party reinsurerreinsurers to reinsure runoffrun-off liabilities associated with certain discontinued U.S. specialty casualty and programinsurance exposures.


2019 Prior Year Reserve Development
During 2019, the Company recorded estimated net favorable development on prior year loss reserves of $163.6 million, which consisted of net favorable development of $15.8 million from the insurance segment, $46.4 million from the reinsurance segment and $125.2 million from the mortgage segment, partially offset by $23.8 million of net adverse development from the ‘other’ segment.
The insurance segment’s net favorable development of $15.8 million, or 7.0 points of net earned premium, consisted of $54.9 million of net favorable development from short-tailed lines and $39.1 million of net adverse development from medium-tailed and long-tailed lines. Net favorable development in short-tailed lines primarily resulted from lenders products and property (including special risk other than marine) reserves across all accident years, (i.e., the year in which a loss occurred) partially offset by net adverse development in travel business, primarily from the 2018 accident year. Net adverse development in medium-tailed and long-tailed lines of $39.1
million was primarily due to net adverse development of $33.6 million in contract binding business, primarily from the 2013 to 2017 accident years, and $30.1 million in programs, primarily from the 2014 and 2018 accident years. Such amounts were partially offset by net favorable development of $19.3 million in professional liability business, primarily from the 2013 to 2016 accident years, and $15.8 million in surety business, primarily from the 2014 to 2016 accident years.
The reinsurance segment’s net favorable development of $46.4 million, or 3.2 points of net earned premium, consisted of $70.5 million of net favorable development from short-tailed lines and $16.0 million of net favorable development from medium-tailed lines, partially offset by $40.1 million of net adverse development from long-tailed lines. Favorable development in short-tailed lines included $33.7 million from property catastrophe and property other than property catastrophe reserves, primarily from the 2017 and 2018 underwriting years (i.e., losses attributable to contracts having an inception or renewal date within the given twelve-month period) and $40.8 million in other specialty, primarily from 2016 to 2018


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underwriting years.The net reduction of loss estimates for the reinsurance segment’s short-tailed lines primarily resulted from varying levels of reported and paid claims activity than previously anticipated which led to decreases in certain loss ratio selections during 2019. Net favorable development of $16.0 million in medium-tailed lines included reductions in marine and aviation reserves, primarily from the 2011 to 2017 underwriting years. Net adverse development in long-tailed lines of $40.1 million was primarily due to net adverse development of $44.5 million in casualty business, primarily from the 2013 to 2018 underwriting years.
The mortgage segment’s net favorable development of $125.2 million, or 9.2 points of net earned premium, included $117.1 million of favorable development on U.S. primary mortgage business. Such development was primarily driven by continued lower than expected claim rates on first lien business and subrogation recoveries on second lien business.
2018 Prior Year Reserve Development
During 2018, the Company recorded estimated net favorable development on prior year loss reserves of $272.7 million, which consisted of $24.4 million from the insurance segment, $138.5 million from the reinsurance segment, $24.4 million from the insurance segment, $107.6 million from the mortgage segment and $2.2 million from the ‘other’ segment.
The reinsurance segment’s net favorable development of $138.5 million, or 11.0 points of net earned premium, consisted of $110.4 million from short-tailed lines and $28.1 million of net favorable development from medium-tailed and long-tailed lines. Favorable development in short-tailed lines included $80.8 million from property catastrophe and property other than property catastrophe reserves, primarily from the 2008 to 2017 underwriting years (i.e., losses attributable to contracts having an inception or renewal date within the given twelve-month period). The net reduction of loss estimates for the reinsurance segment’s short-tailed lines primarily resulted from varying levels of reported and paid claims activity than previously
anticipated which led to decreases in certain loss ratio selections during 2018. Net favorable development of $28.1 million in medium-tailed and long-tailed lines included reductions in casualty reserves of $12.5 million, primarily from the 2002 to 2010 underwriting years, and in marine and aviation reserves of $15.6 million, spread across most underwriting years.
The insurance segment’s net favorable development of $24.4 million, or 1.1 points of net earned premium, consisted of $48.4 million of net favorable development from short-tailed lines and $26.3 million of net favorable development from long-tailed lines, partially offset by $50.3 million of net adverse development from medium-tailed lines. Favorable development in short-tailed lines predominantly consisted of $50.1 million of net favorable development in property lines, primarily from the 2010 to 2017 accident years, (i.e., the year in which a loss occurred), partially offset by $5.0 million of adverse development on travel, accident and health business from the 2013 to 2017 accident years. Net favorable development in long-tailed lines of $26.3 million included $19.7 million of net favorable development on executive


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assurance business, primarily from the 2015 accident year, and $1.4 million of net favorable development in casualty business, primarily from the 2009 to 2015 accident years. Net adverse development in medium tailed lines of $50.3 million was primarily due to net adverse development in contract binding business for accident years 2013 to 2017.
The reinsurance segment’s net favorable development of $138.5 million, or 11.0 points of net earned premium, consisted of $110.4 million from short-tailed lines and $28.1 million from medium-tailed and long-tailed lines. Favorable development in short-tailed lines included $80.8 million from property catastrophe and property other than property catastrophe reserves, primarily from the 2008 to 2017 underwriting years. The net reduction of loss estimates for the reinsurance
segment’s short-tailed lines primarily resulted from varying levels of reported and paid claims activity than previously anticipated which led to decreases in certain loss ratio selections during 2018. Net favorable development of $28.1 million in medium-tailed and long-tailed lines included reductions in casualty reserves of $12.5 million, primarily from the 2002 to 2010 underwriting years, and in marine and aviation reserves of $15.6 million, spread across most underwriting years.
The mortgage segment’s net favorable development of $107.6 million, or 9.1 points of net earned premium, included $103.4 million of favorable development on U.S. primary mortgage business. Such development was primarily driven by continued lower than expected claim emergence across most origination yearsrates on first lien business and also reflected $26.3 million related tosubrogation recoveries on second lien and other portfolios, primarily due to subrogation recoveries.business.
2017 Prior Year Reserve Development
During 2017, the Company recorded estimated net favorable development on prior year loss reserves of $238.0 million, which consisted of $165.4 million from the reinsurance segment, $8.6 million from the insurance segment,$165.4 million from the reinsurance segment, and $95.0 million from the mortgage segment, less adverse development of $31.0 million from the ‘other’ segment.
The reinsurance segment’s net favorable development of $165.4 million, or 14.5 points of net earned premium, consisted of $101.0 million from short-tailed lines and $64.4 million of net favorable development from medium-tailed and long-tailed lines. Favorable development in short-tailed lines included $82.6 million from property catastrophe and property other than property catastrophe reserves, primarily from the 2009 to 2016 underwriting years. The net reduction of loss estimates for the reinsurance segment’s short-tailed lines primarily resulted from varying levels of reported and paid claims activity than previously anticipated which led to decreases in certain loss ratio selections during 2017. Net favorable development of $64.4 million in medium-tailed and long-tailed lines included reductions in casualty reserves of $43.7 million, primarily from the 2002 to 2013 underwriting years, and in marine and aviation reserves of $19.6 million, spread across most underwriting years.
The insurance segment’s net favorable development of $8.6 million, or 4.0 points of net earned premium, consisted of $14.9 million of net favorable development from short-tailed lines and $11.8 million of net favorable development from long-tailed lines, partially offset by $18.1 million of net adverse development from medium-tailed lines. Favorable development in short-tailed lines predominantly consisted of $22.8 million of net favorable development in property lines, primarily from the 2011 to 2016 accident years, partially offset by $11.8 million of adverse development on travel, accident and health business from the 2014 to 2016 accident years. Net favorable development in long-tailed lines of $11.8 million included $10.0 million of net favorable development on executive assurance business, primarily from the 2013 accident
year, and $8.3 million of net favorable development in casualty business, primarily from the 2007 to 2013 accident years. Net adverse development in medium-tailed lines of $18.1 million included $56.3 million of net adverse development in program business, primarily from the 2013 to 2015 accident years and primarily driven by a few inactive programs that were non-renewed in 2015 and early in 2016, partially offset by $36.2 million of net favorable development in professional liability business, primarily from the 2010 to 2016 accident years.
The mortgage segment’s net favorable development of $95.0 million, or 9.0 points of net earned premium, for 2017, included $89.3 million of favorable development on U.S. primary mortgage business. Such development was primarily driven by lower than expected claim emergence across most origination years and also reflected $33.8 million related to second lien and other portfolios, primarily due to subrogation recoveries.
2016 Prior Year Reserve Development
During 2016, the Company recorded estimated net favorable development on prior year loss reserves of $270 million, which consisted of $218.8 million from the reinsurance segment, $33.1 million from the insurance segment, $21.2 million from the mortgage segment less adverse development of $3.1 million from the ‘other’ segment.
The reinsurance segment’s net favorable development of $218.8$165.4 million, or 20.714.5 points of net earned premium, consisted of $133.8$101.0 million from short-tailed lines and $85.0$64.4 million of net favorable development from medium-tailed and long-tailed lines. Favorable development in short-tailed lines included $113.6$82.6 million from property catastrophe and property other than property catastrophe reserves, primarily from the 2009 to 20152016 underwriting years.


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The net reduction of loss estimates for the reinsurance segment’s short-tailed lines primarily resulted from varying levels of reported and paid claims activity than previously anticipated which led to decreases in certain loss ratio selections during 2016.2017. Net favorable development of $85.0$64.4 million in medium-tailed and long-tailed lines included reductions in casualty reserves of $86.1$43.7 million, primarily from the 2002 to 2013 underwriting years.
The insurance segment’s net favorable developmentyears, and in marine and aviation reserves of $33.1$19.6 million, or 1.6 points of net earned premium, consisted of $8.7 million of net favorable development from short-tailed lines and $24.4 million of net favorable development from medium-tailed and long-tailed lines. Favorable development in short-tailed lines predominantly consisted of $17.2 million of net favorable development in property lines, primarily from the 2008 to 2014 accident years, partially offset by $11.1 million of adverse development on travel, accident and health business from the 2012 to 2015 accidentspread across most underwriting years. Net favorable development in medium-tailed and long-tailed lines of $24.4 million included $53.8 million of net favorable development on professional lines, primarily from the 2008 to 2012 accident


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years, partially offset by $33.1 million of net adverse development in program business, primarily from the 2013 to 2015 accident years. The adverse development in program business was primarily driven by a few inactive programs that were non-renewed in 2015 and early in 2016.
The mortgage segment’s net favorable development of $21.2$95.0 million, or 7.49.0 points of net earned premium, for 2016,2017, included $18.5$89.3 million of favorable development on U.S. primary mortgage business, reflecting a decrease in the number of delinquent loans and a lower claim rate on such loans.business. Such development was primarily from the 2004 to 2008driven by continued lower than expected claim rates on first lien business and 2014 origination years. The mortgage segment also experienced net favorable development of $2.7 millionsubrogation recoveries on U.S. mortgage reinsurancesecond lien business.
6.    Short Duration Contracts

The Company’s reserves for losses and loss adjustment expenses primarily relate to short-duration contracts with various characteristics (e.g., type of coverage, geography, claims duration). The Company considered such information in determining the level of disaggregation for disclosures related to its short-duration contracts, as detailed in the table below:
Reportable segment Level of disaggregation Included lines of business
Insurance Property energy, marine and aviation Property energy, marine and aviation
  Third party occurrence business 
Excess and surplus casualty (excluding contract binding); construction and national accounts; and other (including alternative market risks, excess workers’ compensation and employer’s liability insurance coverages)
  Third party claims-made business Professional lines
  Multi-line and other specialty 
Programs; contract binding (part of excess and surplus casualty); travel, accident and health; lenders products; and other (contract and commercial surety coverages)
     
Reinsurance Casualty Casualty
  Property catastrophe Property catastrophe
  Property excluding property catastrophe Property excluding property catastrophe
  Marine and aviation Marine and aviation
  Other specialty Other specialty
     
Mortgage Direct mortgage insurance in the U.S. Mortgage insurance on U.S. primary exposures

The Company determined the following to be insignificant for disclosure purposes: (i) amounts included in the ‘other’ segment
(i.e., Watford Re)) as described in note 11, “Variable Interest
Entity and Noncontrolling Interests”; (ii) certain mortgage business, including non-U.S. primary business, second lien and student loan exposures, global mortgage reinsurance and participation in various GSE credit risk-sharing products; and (iii) certain reinsurance business, including casualty clash and non-traditional lines.lines, and (iv) amounts associated with the Barbican acquisition. Such amounts are included as reconciling items.
The Company is required to establish reserves for losses and loss adjustment expenses (“Loss Reserves”) that arise from the business the Company underwrites. Loss Reserves for the insurance, reinsurance and mortgage segments represent estimates of future amounts required to pay losses and loss adjustment expenses for insured or reinsured events which have occurred at or before the balance sheet date. Loss Reserves do not reflect contingency reserve allowances to account for future loss occurrences. Losses arising from future events will be estimated and recognized at the time the losses are incurred and could be substantial.
Insurance Segment
Loss Reserves for the insurance segment are comprised of (1) estimated amounts for (1) reported losses (“case reserves”) and (2) incurred but not reported losses (“IBNR reserves”). Generally, claims personnel determine whether to establish a case reserve for the estimated amount of the ultimate settlement of individual claims. The estimate reflects the judgment of claims personnel based on general corporate reserving practices, the experience and knowledge of such personnel regarding the nature and value of the specific type of claim and, where appropriate, advice of counsel. The Company also contracts with a number of outside third party administrators in the claims process who, in certain cases, have limited authority to establish case reserves. The work of such administrators is reviewed and monitored by our claims personnel. Loss Reserves are also established to provide for loss adjustment expenses and represent the estimated expense of settling claims, including legal and other fees and the general expenses of administering the claims adjustment process. Periodically, adjustments to the case reserves may be made as additional information is reported or payments are made. IBNR reserves are established to provide for incurred claims which have not yet been reported at the balance sheet date as well as to adjust for any projected variance in case reserving. Actuaries estimate ultimate losses and loss adjustment expenses using various generally accepted actuarial methods applied to known losses and other relevant information. Like case reserves, IBNR reserves are adjusted as additional information becomes known or payments are made. The process of estimating reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain.
Ultimate losses and loss adjustment expenses are generally determined by extrapolation of claim emergence and settlement patterns observed in the past that can reasonably be expected




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patterns observed in the past that can reasonably be expected to persist into the future. In forecasting ultimate losses and loss adjustment expenses with respect to any line of business, past experience with respect to that line of business is the primary resource, developed through both industry and company experience, but cannot be relied upon in isolation. Uncertainties in estimating ultimate losses and loss adjustment expenses are magnified by the length of the time lag between when a claim actually occurs and when it is reported and settled. This time lag is sometimes referred to as the “claim-tail.” During this period additional facts regarding coverages written in prior accident years, as well as about actual claims and trends, may become known and, as a result, may lead to adjustments of the related Loss Reserves. If the Company determines that an adjustment is appropriate, the adjustment is recorded in the accounting period in which such determination is made. Accordingly, should Loss Reserves need to be increased or decreased in the future from amounts currently established, future results of operations would be negatively or positively impacted respectively. The Company authorizes managing general agents, general agents and other producers to write program business on the Company’s behalf within prescribed underwriting authorities. This delegated authority process introduces additional complexity to the actuarial determination of unpaid future losses and loss adjustment expenses. In order to monitor adherence to the underwriting guidelines given to such parties, the Company periodically performs underwriting and claims due diligence reviews.
In determining ultimate losses and loss adjustment expenses, the cost to indemnify claimants, provide needed legal defense and other services for insureds and administer the investigation and adjustment of claims are considered. These claim costs are influenced by many factors that change over time, such as expanded coverage definitions as a result of new court decisions, inflation in costs to repair or replace damaged property, inflation in the cost of medical services and legislated changes in statutory benefits, as well as by the particular, unique facts that pertain to each claim. As a result, the rate at which claims arose in the past and the costs to settle them may not always be representative of what will occur in the future. The factors influencing changes in claim costs are often difficult to isolate or quantify and developments in paid and incurred losses from historical trends are frequently subject to multiple and conflicting interpretations. Changes in coverage terms or claims handling practices may also cause future experience and/or development patterns to vary from the past. A key objective of actuaries in developing estimates of ultimate losses and loss adjustment expenses, and resulting IBNR reserves, is to identify aberrations and systemic changes occurring within historical experience and adjust for them so that the future can be projected more reliably. Because of the factors previously discussed, this process requires the substantial use of informed judgment and is inherently uncertain.
Although Loss Reserves are initially determined based on underwriting and pricing analyses, the Company’s insurance
segment applies several generally accepted actuarial methods, as discussed below, on a quarterly basis to evaluate the Loss Reserves, in addition to the expected loss method, in particular for Loss Reserves from more mature accident years (the year in which a loss occurred). Each quarter, as part of the reserving process, the segments’ actuaries reaffirm that the assumptions used in the reserving process continue to form a sound basis for the projection of liabilities. If actual loss activity differs substantially from expectations based on historical information, an adjustment to Loss Reserves may be supported. The Company places more or less reliance on a particular actuarial method based on the facts and circumstances at the time the estimates of Loss Reserves are made.
These methods generally fall into one of the following categories or are hybrids of one or more of the following categories:
Expected loss methods - these methods are based on the assumption that ultimate losses vary proportionately with premiums. Expected loss and loss adjustment expense ratios are typically developed based upon the information derived by underwriters and actuaries during the initial pricing of the business, supplemented by industry data available from organizations, such as statistical bureaus and consulting firms, where appropriate. These ratios consider, among other things, rate increases and changes in terms and conditions that have been observed in the market. Expected loss methods are useful for estimating ultimate losses and loss adjustment expenses in the early years of long-tailed lines of business, when little or no paid or incurred loss information is available, and is commonly applied when limited loss experience exists for a company.
Expected loss methods - these methods are based on the assumption that ultimate losses vary proportionately with premiums. Expected loss and loss adjustment expense ratios are typically developed based upon the information derived by underwriters and actuaries during the initial pricing of the business, supplemented by industry data available from organizations, such as statistical bureaus and consulting firms, where appropriate. These ratios consider, among other things, rate increases and changes in terms and conditions that have been observed in the market. Expected loss methods are useful for estimating ultimate losses and loss adjustment expenses in the early years of long-tailed lines of business, when little or no paid or incurred loss information is available, and is commonly applied when limited loss experience exists for a company.
Historical incurred loss development methods - these methods assume that the ratio of losses in one period to losses in an earlier period will remain constant in the future. These methods use incurred losses (i.e., the sum of cumulative historical loss payments plus outstanding case reserves) over discrete periods of time to estimate future losses. Historical incurred loss development methods may be preferable to historical paid loss development methods because they explicitly take into account open cases and the claims adjusters’ evaluations of the cost to settle all known claims. However, historical incurred loss development methods necessarily assume that case reserving practices are consistently applied over time. Therefore, when there have been significant changes in how case reserves are established, using incurred loss data to project ultimate losses may be less reliable than other methods.
Historical paid loss development methods - these methods, like historical incurred loss development methods - these methods assume that the ratio of losses in one period to losses in an earlier period will remain constant in the future. These methods use incurred losses (i.e., the sum of cumulative historical loss payments plus outstanding case reserves) over discrete periods of time to estimate future losses. Historical incurred loss development methods may be preferable to historical paid loss development methods because they explicitly take into account open cases and the claims adjusters’ evaluations of the cost to settle all known claims. However, historical incurred loss development methods necessarily assume that case reserving practices are consistently applied over time. Therefore, when there have been significant changes in how case reserves are established, using incurred loss data to project ultimate losses may be less reliable than other methods.
Historical paid loss development methods - these methods, like historical incurred loss development methods, assume


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loss payments over discrete periods of time to estimate future losses and necessarily assume that factors that have affected paid losses in the past, such as inflation or the effects of litigation, will remain constant in the future. Because historical paid loss development methods do not use incurred losses to estimate ultimate losses, they may be more reliable than the other methods that use incurred losses in situations where there are significant changes in how incurred losses are established by a company’s claims adjusters. However, historical paid loss development methods are more leveraged (meaning that small changes in payments have a larger impact on estimates of ultimate losses) than actuarial methods that use incurred losses because cumulative loss payments take much longer to equal the expected ultimate losses than cumulative incurred amounts. In addition, and for similar reasons, historical paid loss development methods are often slow to react to situations when new or different factors arise than those that have affected paid losses in the past.
Adjusted historical paid and incurred loss development methods - these methods take traditional historical paid and incurred loss development methods and adjust them for the estimated impact of changes from the past in factors such as inflation, the speed of claim payments or the adequacy of case reserves. Adjusted historical paid and incurred loss development methods are often more reliable methods of predicting ultimate losses in periods of significant change, provided the actuaries can develop methods to reasonably quantify the impact of changes. As such, these methods utilize more judgment than historical paid and incurred loss development methods.
Bornhuetter-Ferguson (“B-F”) paid and incurred loss methods - these methods utilize actual paid and incurred losses and expected patterns of paid and incurred losses, taking the initial expected ultimate losses into account to determine an estimate of expected ultimate losses. The B-F paid and incurred loss methods are useful when there are few reported claims and a relatively less stable pattern of reported losses.
Frequency-Severity methods - These methods utilize actual paid and incurred claim experience, but break the data down into its component pieces: claim counts, often expressed as a ratio to exposure or premium (frequency), and average claim size (severity). The component pieces are projected to an ultimate level and multiplied together to result in an estimate of ultimate loss. These methods are especially useful when the severity of claims can be confined to a relatively stable range of estimated ultimate average claim value.
Additional analyses - other methodologies are often used in the reserving process for specific types of claims or events, such as catastrophic or other specific major events.
Adjusted historical paid and incurred loss development methods - these methods take traditional historical paid and incurred loss development methods and adjust them for the estimated impact of changes from the past in factors such as inflation, the speed of claim payments or the adequacy of case reserves. Adjusted historical paid and incurred loss development methods are often more reliable methods of predicting ultimate losses in periods of significant change, provided the actuaries can develop methods to reasonably quantify the impact of changes. As such, these methods utilize more judgment than historical paid and incurred loss development methods.
Bornhuetter-Ferguson (“B-F”) paid and incurred loss methods - these methods utilize actual paid and incurred losses and expected patterns of paid and incurred losses, taking the initial expected ultimate losses into account to determine an estimate of expected ultimate losses. The B-F paid and incurred loss methods are useful when there are few reported claims and a relatively less stable pattern of reported losses.
Frequency-Severity methods - These methods utilize actual paid and incurred claim experience, but break the data down into its component pieces: claim counts, often expressed as a ratio to exposure or premium (frequency), and average claim size (severity). The component pieces are projected to an ultimate level and multiplied together to result in an estimate of ultimate loss. These methods are especially useful when the severity of claims can be confined to a relatively stable range of estimated ultimate average claim value.
 
Additional analyses - other methodologies are often used in the reserving process for specific types of claims or events, such as catastrophic or other specific major events. These include vendor catastrophe models, which are typically used in the estimation of Loss Reserves at the early stage of known catastrophic events before information has been reported to an insurer or reinsurer.
In the initial reserving process for short-tail insurance lines (consisting of property, energy, marine and aviation and other exposures including travel, accident and health and lenders products), the Company relies on a combination of the reserving methods discussed above. For catastrophe-exposed business, the reserving process also includes the usage of catastrophe models for known events and a heavy reliance on analysis of individual catastrophic events and management judgment. The development of losses on short-tail business can be unstable, especially for policies characterized by high severity, low frequency losses. As time passes, for a given accident year, additional weight is given to the paid and incurred B-F loss development methods and eventually to the historical paid and incurred loss development methods in the reserving process. The Company makes a number of key assumptions in their reserving process, including that historical paid and reported development patterns are stable, catastrophe models provide useful information about our exposure to catastrophic events that have occurred and underwriters’ judgment as to potential loss exposures can be relied on. The expected loss ratios used in the initial reserving process for short-tail business have varied over time due to changes in pricing, reinsurance structure, estimates of catastrophe losses, policy changes (such as attachment points, class and limits) and geographical distribution. As losses in short-tail lines are reported relatively quickly, expected loss ratios are selected for the current accident year based upon actual attritional loss ratios for earlier accident years, adjusted for rate changes, inflation, changes in reinsurance programs and expected attritional losses based on modeling. Furthermore, ultimate losses for short-tail business are known in a reasonably short period of time.
In the initial reserving process for medium-tail and long-tail insurance lines (consisting ofthird party occurrence business, third party claims made business, and other exposures including surety, programs and contract binding exposures), the Company primarily relies on the expected loss method. The development of the Company’s medium-tail and long-tail business may be unstable, especially if there are high severity major events, as a portion of the Company’s casualty business is in high excess layers. As time passes, for a given accident year, additional weight is given to the paid and incurred B-F loss development methods and historical paid and incurred loss development methods in the reserving process. The Company makes a number of key assumptions in reserving for medium-tail and long-tail lines, including that the pricing loss ratio is the best estimate of the ultimate loss ratio at the time the policy is entered into, that the loss development patterns, which are based on a


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personnel and underwriters analyses of our exposure to major events are assumed to be the best estimate of exposure to the known claims on those events. The expected loss ratios used in the initial reserving process for medium-tail and long-tail business for recent accident years have varied over time, in some cases significantly, from earlier accident years. As the credibility of historical experience for earlier accident years increases, the experience from these accident years will be given a greater weighting in the actuarial analysis to determine future accident year expected loss ratios, adjusted for changes in pricing, loss trends, terms and conditions and reinsurance structure.
In 2019 and 2018, the Company entered into atwo separate loss portfolio transfertransfers and adverse development cover reinsurance agreement accounted
 
agreements accounted for as retroactive reinsurance.  The agreement transfersThese agreements transfer Loss Reserves and future favorable or adverse development on certain runoff programs and other exposures within multi-line and other specialty business, and certain third party occurrence business (the “Covered Lines”). As incurred losses and allocated loss adjustment expenses for the Covered Lines are ceded to the reinsurer, the Company is not exposed to changes in the amount, timing and uncertainty of cash flows arising from the Covered Lines.  To avoid distortion, the incurred losses and allocated loss adjustment expenses and cumulative paid losses and loss adjustment expenses for the Covered Lines are excluded entirely from the tables below.  Reinsurance recoverables at December 31, 20182019 included $245.8$319.3 million related to thisthese reinsurance agreement.agreements.
The following tables present information on the insurance segment’s short-duration insurance contracts:
Property, energy, marine and aviation ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $256,308
 $259,695
 $231,277
 $220,007
 $205,570
 $199,259
 $197,398
 $191,934
 $190,815
 $191,430
 $1,896
 3,617
2010   199,725
 188,449
 152,342
 139,993
 128,691
 129,073
 127,613
 125,994
 121,159
 1,187
 3,658
 $197,399
 $187,305
 $151,937
 $139,757
 $128,475
 $128,799
 $127,530
 $124,974
 $120,813
 $118,570
 $1,310
 3,676
2011     267,016
 268,029
 227,170
 215,580
 206,981
 205,514
 200,923
 199,600
 1,064
 4,197
   266,725
 269,790
 229,244
 217,753
 208,494
 205,344
 198,763
 198,956
 198,370
 868
 4,219
2012       233,398
 232,368
 204,923
 198,444
 196,362
 192,392
 189,123
 3,038
 4,232
     230,399
 229,820
 203,408
 197,187
 194,746
 190,930
 188,649
 178,394
 2,487
 4,266
2013         158,214
 155,401
 147,450
 141,199
 134,675
 132,242
 2,101
 4,231
       156,936
 154,313
 146,777
 140,967
 132,839
 132,211
 128,247
 752
 4,279
2014           146,228
 142,896
 146,643
 136,286
 130,725
 12,868
 3,861
         146,391
 143,825
 145,065
 134,055
 133,482
 129,973
 6,769
 3,930
2015             111,020
 109,172
 104,024
 101,404
 11,507
 4,493
           110,867
 108,260
 102,535
 102,221
 97,361
 5,669
 4,613
2016               103,983
 100,986
 104,430
 3,143
 6,048
             102,910
 99,899
 104,246
 100,542
 560
 6,388
2017                 281,004
 244,784
 43,281
 6,048
               278,549
 247,072
 235,152
 14,830
 6,744
2018                   179,457
 63,437
 2,453
                 185,486
 179,262
 29,117
 5,333
2019                   161,850
 59,863
 5,688
                 Total $1,594,354
                     Total $1,527,721
    
                                                
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance    Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2009 $38,430
 $116,140
 $143,156
 $159,430
 $168,721
 $173,141
 $177,202
 $177,557
 $178,153
 $178,816
    
2010   28,470
 65,689
 87,437
 105,803
 110,903
 117,956
 120,030
 119,447
 119,647
     $28,433
 $65,846
 $87,476
 $105,887
 $110,892
 $117,737
 $119,953
 $118,437
 $119,276
 $116,822
    
2011     34,222
 98,480
 139,979
 165,281
 195,151
 200,052
 197,717
 197,059
       34,002
 98,616
 140,555
 165,950
 198,128
 199,943
 195,613
 196,272
 196,056
    
2012       21,235
 92,911
 137,629
 160,380
 166,953
 179,355
 179,677
         20,301
 92,034
 137,179
 159,862
 165,488
 177,945
 179,138
 173,058
    
2013         31,859
 83,773
 109,358
 117,958
 121,936
 123,975
           31,874
 83,689
 109,088
 118,131
 120,385
 123,392
 123,696
    
2014           25,624
 52,438
 77,201
 84,124
 86,911
             25,620
 53,060
 76,774
 83,080
 86,518
 99,041
    
2015             23,243
 64,417
 76,325
 85,370
               23,271
 63,990
 75,340
 84,964
 88,433
    
2016               24,645
 83,326
 97,569
                 24,442
 82,357
 97,147
 97,674
    
2017                 30,227
 138,955
                   29,915
 138,525
 196,290
    
2018                   29,765
                     29,641
 102,798
    
2019                   26,014
    
         Total  1,237,744
             Total  1,219,882
    
         All outstanding liabilities before 2009, net of reinsurance  25,620
             All outstanding liabilities before 2010, net of reinsurance  32,875
    
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $382,230
           Liabilities for losses and loss adjustment expenses, net of reinsurance  $340,714
    




ARCH CAPITAL12211520182019 FORM 10-K



ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Third party occurrence business ($000’s except claim count)
 Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018 Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $236,168
 $230,643
 $231,947
 $230,981
 $233,823
 $234,449
 $226,929
 $220,739
 $221,298
 $214,940
 $35,059
 50,361
2010   217,459
 235,309
 230,792
 230,981
 233,286
 229,618
 223,647
 215,530
 218,487
 37,599
 62,652
 $217,431
 $235,241
 $230,710
 $230,859
 $233,204
 $229,534
 $223,618
 $215,332
 $218,374
 $211,046
 $33,176
 62,757
2011     233,987
 240,485
 253,710
 258,474
 252,332
 253,648
 246,976
 239,499
 49,925
 71,018
   233,958
 240,406
 253,691
 258,348
 252,227
 253,598
 246,721
 239,395
 233,563
 44,601
 71,101
2012       240,924
 262,370
 267,990
 270,539
 257,111
 252,732
 242,775
 70,595
 65,720
     240,917
 262,373
 267,980
 270,603
 257,059
 252,497
 242,648
 242,454
 60,258
 65,806
2013         282,525
 296,459
 306,378
 301,807
 281,768
 274,189
 90,607
 66,918
       282,629
 296,492
 306,358
 301,403
 281,437
 275,101
 271,116
 74,749
 66,990
2014           329,379
 335,231
 338,647
 342,858
 339,216
 127,656
 75,322
         329,448
 335,281
 338,194
 342,455
 340,408
 341,595
 98,049
 75,526
2015             358,461
 391,762
 398,676
 391,552
 184,313
 77,072
           358,478
 391,198
 398,185
 394,268
 388,744
 146,656
 77,727
2016               389,672
 394,281
 405,637
 237,966
 76,270
             389,333
 393,991
 406,785
 397,914
 193,182
 77,100
2017                 417,190
 417,495
 306,585
 80,606
               416,856
 419,456
 421,414
 254,057
 82,458
2018                   429,713
 377,969
 57,688
                 434,854
 450,950
 315,814
 74,221
2019                   454,723
 390,054
 62,988
                 Total $3,173,503
                     Total $3,413,519
    
         
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance    Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2009 $5,618
 $20,162
 $43,727
 $71,986
 $103,601
 $126,824
 $142,359
 $149,370
 $156,787
 $159,642
    
2010   6,755
 25,517
 45,594
 72,740
 102,440
 117,316
 132,833
 142,570
 148,251
     $6,753
 $25,511
 $45,550
 $72,696
 $102,391
 $117,250
 $132,818
 $142,380
 $148,140
 $158,370
    
2011     7,009
 25,165
 43,303
 73,280
 113,302
 134,321
 152,699
 160,451
       7,006
 25,142
 43,309
 73,268
 113,283
 134,342
 152,472
 160,326
 171,744
    
2012       6,964
 30,805
 58,402
 83,133
 107,982
 129,519
 143,045
         6,962
 30,799
 58,387
 83,193
 108,087
 129,369
 142,932
 153,263
    
2013         6,837
 29,207
 71,321
 101,170
 122,103
 149,012
           6,842
 29,214
 71,328
 101,148
 122,043
 148,951
 162,910
    
2014           9,206
 40,206
 71,497
 112,578
 161,863
             9,204
 40,232
 71,397
 112,434
 161,780
 188,871
    
2015             11,110
 44,532
 88,436
 139,332
               11,112
 44,522
 88,383
 139,283
 179,435
    
2016               11,686
 41,934
 87,479
                 11,684
 41,893
 87,424
 135,617
    
2017                 13,395
 52,299
                   13,392
 52,283
 99,225
    
2018                   16,998
                     16,994
 62,762
    
2019                   18,202
    
         Total  1,218,372
             Total  1,330,399
    
         All outstanding liabilities before 2009, net of reinsurance  134,229
             All outstanding liabilities before 2010, net of reinsurance  181,719
    
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $2,089,360
           Liabilities for losses and loss adjustment expenses, net of reinsurance  $2,264,839
    
Third party claims-made business ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
 �� Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $284,308
 $318,554
 $308,848
 $307,365
 $304,122
 $304,228
 $307,528
 $303,793
 $301,909
 $288,185
 $8,073
 10,907
2010   285,454
 311,585
 333,227
 338,993
 331,922
 315,420
 298,917
 287,825
 285,174
 11,252
 12,335
 $286,202
 $311,709
 $332,779
 $338,238
 $331,006
 $314,388
 $298,444
 $280,497
 $283,530
 $284,427
 $8,775
 12,335
2011     282,888
 325,151
 316,424
 311,114
 316,658
 296,106
 288,319
 285,912
 24,770
 11,759
   281,448
 323,369
 314,961
 309,684
 315,118
 294,367
 281,487
 284,242
 279,909
 14,003
 11,762
2012       310,964
 313,827
 312,282
 307,500
 283,928
 275,654
 273,280
 27,916
 14,752
     309,654
 312,143
 310,359
 305,362
 283,903
 268,765
 271,663
 272,826
 17,820
 14,759
2013         295,986
 313,670
 317,289
 314,551
 294,754
 287,299
 58,923
 14,529
       295,759
 313,601
 317,165
 313,738
 288,506
 286,280
 271,290
 29,604
 14,542
2014           260,667
 276,056
 295,274
 278,840
 278,644
 50,437
 13,925
         260,698
 275,172
 293,467
 273,876
 278,182
 287,424
 42,805
 13,935
2015             255,994
 274,602
 276,446
 256,863
 94,539
 13,480
           254,540
 272,413
 271,343
 257,902
 246,366
 43,026
 13,815
2016               272,732
 291,430
 305,253
 111,019
 15,212
             270,537
 286,677
 306,837
 304,266
 81,707
 15,716
2017                 270,555
 283,410
 161,218
 15,820
               266,526
 284,875
 300,710
 131,795
 15,904
2018                   270,203
 213,449
 10,653
                 272,655
 301,247
 177,552
 14,934
2019                   271,824
 224,119
 9,698
                 Total $2,814,223
                     Total $2,820,289
    
                                                
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance    Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2009 $11,398
 $55,601
 $108,303
 $149,913
 $187,293
 $202,236
 $236,185
 $245,717
 $250,438
 $246,953
    
2010   13,989
 71,011
 128,259
 163,239
 198,511
 214,886
 229,400
 238,885
 244,411
     $13,811
 $70,583
 $127,531
 $162,490
 $197,142
 $213,530
 $229,824
 $233,085
 $241,887
 $252,119
    
2011     13,596
 71,342
 128,471
 171,963
 205,140
 224,456
 240,552
 250,972
       13,510
 71,038
 128,011
 171,354
 204,215
 223,458
 235,181
 248,524
 259,416
    
2012       17,429
 67,651
 118,536
 161,244
 184,604
 209,376
 223,843
         17,307
 67,314
 117,891
 160,480
 185,656
 204,240
 221,391
 240,281
    
2013         18,613
 85,408
 134,802
 174,900
 198,156
 214,411
           18,557
 85,442
 134,509
 175,328
 193,704
 212,488
 230,377
    
2014           13,609
 62,576
 127,969
 172,963
 205,739
             13,572
 62,308
 127,683
 170,331
 204,330
 223,907
    
2015             8,879
 51,389
 100,147
 125,258
               8,845
 51,064
 98,371
 124,381
 168,664
    
2016               10,470
 68,218
 126,371
                 10,371
 67,446
 125,740
 156,030
    
2017                 9,294
 67,003
                   9,180
 66,582
 111,532
    
2018                   12,180
                     12,123
 67,567
    
2019                   11,443
    
         Total  1,717,141
             Total  1,721,336
    
         All outstanding liabilities before 2009, net of reinsurance  105,520
             All outstanding liabilities before 2010, net of reinsurance  126,168
    
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $1,202,602
           Liabilities for losses and loss adjustment expenses, net of reinsurance  $1,225,121
    




ARCH CAPITAL12311620182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Multi-line and other specialty ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
    Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
  Year ended December 31,  
Accident year 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019  
2010 $173,984
 $176,796
 $169,307
 $166,892
 $158,092
 $154,716
 $153,526
 $153,598
 $151,951
 $150,342
 $2,508
 37,891
2011   182,372
 187,924
 182,213
 175,794
 171,923
 171,691
 168,243
 169,851
 169,467
 3,097
 44,881
2012     252,699
 263,326
 257,420
 255,055
 254,155
 246,077
 246,482
 243,042
 4,255
 55,403
2013       263,349
 271,603
 262,837
 263,097
 251,187
 252,713
 247,659
 7,096
 71,701
2014         300,962
 324,736
 317,210
 317,161
 316,047
 312,400
 11,578
 109,295
2015           333,519
 356,543
 355,484
 363,627
 355,095
 17,097
 147,950
2016             406,309
 428,530
 425,281
 413,668
 25,881
 173,735
2017               479,694
 498,860
 488,276
 46,435
 217,360
2018                 573,827
 621,724
 123,652
 243,725
2019                   604,356
 299,028
 169,915
                  Total $3,606,029
    
                         
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2010 $49,906
 $91,265
 $111,143
 $125,897
 $135,981
 $140,372
 $143,459
 $146,357
 $146,482
 $146,413
    
2011   51,145
 102,910
 117,372
 136,078
 147,466
 151,126
 156,619
 158,902
 161,887
    
2012     78,178
 165,305
 189,330
 208,372
 222,024
 230,929
 232,064
 235,461
    
2013       86,403
 150,432
 179,785
 212,713
 224,665
 233,572
 235,784
    
2014         107,529
 196,081
 232,950
 265,927
 279,950
 290,702
    
2015           137,561
 235,193
 276,608
 304,464
 319,788
    
2016             174,366
 302,470
 339,125
 360,602
    
2017               179,777
 339,753
 378,500
    
2018                 213,065
 399,443
    
2019                   213,559
    
          Total  2,742,139
    
          All outstanding liabilities before 2010, net of reinsurance  23,337
    
        Liabilities for losses and loss adjustment expenses, net of reinsurance  $887,227
    

Multi-line and other specialty ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018
    Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
  Year ended December 31,  
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  
2009 $207,671
 $216,268
 $212,738
 $206,057
 $196,062
 $195,157
 $191,653
 $189,457
 $185,080
 $183,117
 $2,292
 33,724
2010   172,583
 175,942
 168,860
 166,643
 158,000
 154,763
 153,686
 154,092
 152,170
 3,136
 37,930
2011     182,683
 188,262
 182,385
 176,000
 172,276
 171,842
 168,913
 169,996
 4,482
 44,942
2012       252,627
 263,530
 257,574
 255,343
 254,051
 247,042
 246,754
 8,102
 55,738
2013         274,555
 282,436
 273,565
 280,049
 271,695
 274,710
 12,404
 72,296
2014           348,683
 372,406
 368,613
 387,171
 397,410
 25,654
 111,115
2015             397,204
 417,353
 420,775
 442,386
 43,362
 132,517
2016               480,501
 504,857
 513,112
 76,648
 175,923
2017                 551,920
 577,626
 142,735
 213,874
2018                   568,410
 278,704
 157,528
                  Total $3,525,691
    
                         
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2009 $62,166
 $114,262
 $143,199
 $154,804
 $160,203
 $177,192
 $178,028
 $179,659
 $179,796
 $177,413
    
2010   49,804
 91,013
 110,927
 125,726
 135,835
 140,359
 143,614
 146,846
 146,709
    
2011     51,179
 102,988
 117,513
 136,253
 147,769
 151,235
 157,224
 159,196
    
2012       78,217
 165,429
 189,464
 208,620
 221,842
 231,778
 232,503
    
2013         86,560
 152,201
 184,835
 220,543
 237,916
 251,061
    
2014           108,939
 204,999
 253,533
 306,518
 340,771
    
2015             141,335
 249,330
 304,338
 349,949
    
2016               180,017
 323,950
 381,291
    
2017                 187,760
 361,761
    
2018                   213,723
    
          Total  2,614,377
    
          All outstanding liabilities before 2009, net of reinsurance  21,825
    
        Liabilities for losses and loss adjustment expenses, net of reinsurance  $933,139
    
The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2018:2019:
  Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
Property, energy, marine and aviation 19.1% 39.1% 19.2% 9.1% 5.3% 5.1% 0.1% (1.5)% 0.3% (2.1)%
Third party occurrence business 3.1% 8.8% 10.9% 12.0% 12.3% 8.5% 6.5% 4.1 % 3.8% 4.8 %
Third party claims-made business 4.6% 19.3% 19.1% 13.4% 11.6% 6.6% 5.7% 4.3 % 3.5% 3.6 %
Multi-line and other specialty 35.2% 29.9% 10.5% 9.4% 5.4% 3.2% 1.7% 1.6 % 0.9%  %
  Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
Property, energy, marine and aviation 19.1% 38.0% 17.5% 9.9% 5.4% 3.7% 0.7% (0.2)% 0.2% 0.3 %
Third party occurrence business 3.0% 8.4% 10.8% 12.0% 12.9% 9.0% 6.9% 3.7 % 3.0% 1.3 %
Third party claims-made business 4.6% 19.0% 19.5% 13.9% 10.9% 6.5% 6.9% 3.4 % 1.8% (1.2)%
Multi-line and other specialty 32.5% 28.0% 11.9% 10.2% 6.1% 4.6% 1.6% 1.4 % % (1.3)%

Reinsurance Segment
Loss Reserves for the Company’s reinsurance segment are comprised of (1) case reserves, (2) additional case reserves (“ACRs”) and (3) IBNR reserves. The Company receives reports of claims notices from ceding companies and records case reserves based upon the amount of reserves recommended by the ceding company. Case reserves may be supplemented by ACRs, which may be estimated by the Company’s claims personnel ahead of official notification from the ceding company, or when judgment regarding the size or severity of the known event differs from the ceding company. In certain instances, the Company establishes ACRs even when the ceding company does not report any liability on a known event. In addition, specific claim information reported by ceding companies or obtained through claim audits can alert the Company to emerging trends such as changing legal interpretations of coverage and liability, claims from unexpected sources or classes of business, and significant changes in the frequency or severity of individual claims. Such information is often used in the process of estimating IBNR
 
reserves. IBNR reserves are established to provide for incurred claims which have not yet been reported at the balance sheet date as well as to adjust for any projected variance in case reserving. Actuaries estimate ultimate losses and loss adjustment expenses using various generally accepted actuarial methods applied to known losses and other relevant information. Like case reserves, IBNR reserves are adjusted as additional information becomes known or payments are made. The process of estimating Loss Reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain.
The estimation of Loss Reserves for the reinsurance segment is subject to the same risk factors as the estimation of Loss Reserves for the insurance segment. In addition, the inherent uncertainties of estimating such reserves are even greater for reinsurers, due primarily to the following factors: (1) the claim-tail for reinsurers is generally longer because claims are first reported to the ceding company and then to the reinsurer through one or more intermediaries, (2) the reliance on premium estimates, where reports have not been received from the ceding




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company, in the reserving process, (3) the potential for writing a number of reinsurance contracts with different ceding companies with the same exposure to a single loss event, (4) the diversity of loss development patterns among different types of reinsurance contracts, (5) the necessary reliance on the ceding companies for information regarding reported claims and (6) the differing reserving practices among ceding companies.
AsUltimate losses and loss adjustment expenses are generally determined by extrapolation of claim emergence and settlement patterns observed in the past that can reasonably be expected to persist into the future.As with the insurance segment, the process of estimating Loss Reserves for the reinsurance segment involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain. As discussed above, such uncertainty is greater for reinsurers compared to insurers. As a result, our reinsurance operations obtain information from numerous sources to assist in the process. Pricing actuaries from the reinsurance segment devote considerable effort to understanding and analyzing a ceding company’s operations and loss history during the underwriting of the business, using a combination of ceding company and industry statistics. Such statistics normally include historical premium and loss data by class of business, individual claim information for larger claims, distributions of insurance limits provided, loss reporting and payment patterns, and rate change history. This analysis is used to project expected loss ratios for each treaty during the upcoming contract period.
As mentioned above, there can be a considerable time lag from the time a claim is reported to a ceding company to the time it is reported to the reinsurer. The lag can be several years in some cases and may be attributed to a number of reasons, including the time it takes to investigate a claim, delays associated with the litigation process, the deterioration in a claimant’s physical condition many years after an accident occurs, the case reserving approach of the ceding company, etc. In the reserving process, the Company assumes that such lags are predictable, on average, over time and therefore the lags are contemplated in the loss reporting patterns used in their actuarial methods. This means that the reinsurance segment must rely on estimates for a longer period of time than does an insurance company. Backlogs in the recording of assumed reinsurance can also complicate the accuracy of loss reserve estimation. As of December 31, 20182019 there were no significant backlogs related to the processing of assumed reinsurance information at our reinsurance operations.
The reinsurance segment relies heavily on information reported by ceding companies, as discussed above. In order to determine the accuracy and completeness of such information, underwriters, actuaries, and claims personnel often perform audits of ceding companies and regularly review information received from ceding companies for unusual or unexpected results. Material findings are usually discussed with the ceding
companies. The Company sometimes encounters situations where they determine that a claim presentation from a ceding company is not in accordance with contract terms. In these
situations, the Company attempts to resolve the dispute with the ceding company. Most situations are resolved amicably and without the need for litigation or arbitration. However, in the infrequent situations where a resolution is not possible, the Company will vigorously defend its position in such disputes.
Although Loss Reserves are initially determined based on underwriting and pricing analysis, the Company applies several generally accepted actuarial methods, as discussed above, on a quarterly basis to evaluate its Loss Reserves in addition to the expected loss method, in particular for reserves from more mature underwriting years (the year in which business is underwritten). Each quarter, as part of the reserving process, the Company’s actuaries reaffirm that the assumptions used in the reserving process continue to form a sound basis for projection of liabilities. If actual loss activity differs substantially from expectations based on historical information, an adjustment to Loss Reserves may be supported. Estimated Loss Reserves for more mature underwriting years are now based more on actual loss activity and historical patterns than on the initial assumptions based on pricing indications. More recent underwriting years rely more heavily on internal pricing assumptions. The Company places more or less reliance on a particular actuarial method based on the facts and circumstances at the time the estimates of Loss Reserves are made.
In the initial reserving process for short-tail reinsurance lines (consisting of property excluding property catastrophe and property catastrophe exposures), the Company relies on a combination of the reserving methods discussed above. For known catastrophic events, the reserving process also includes the usage of catastrophe models and a heavy reliance on analysis which includes ceding company inquiries and management judgment. The development of property losses may be unstable, especially where there is high catastrophic exposure, may be characterized by high severity, low frequency losses for excess and catastrophe-exposed business and may be highly correlated across contracts. As time passes, for a given underwriting year, additional weight is given to the paid and incurred B-F loss development methods and historical paid and incurred loss development methods in the reserving process. The Company makes a number of key assumptions in reserving for short-tail lines, including that historical paid and reported development patterns are stable, catastrophe models provide useful information about our exposure to catastrophic events that have occurred and our underwriters’ judgment and guidance received from ceding companies as to potential loss exposures may be relied on. The expected loss ratios used in the initial reserving process for property exposures have varied over time due to changes in pricing, reinsurance structure, estimates of catastrophe losses, terms and conditions and geographical distribution. As losses in property lines are reported relatively


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quickly, expected loss ratios are selected for the current underwriting year incorporating the experience for earlier underwriting years, adjusted for rate changes, inflation, changes


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in reinsurance programs, expectations about present and future market conditions and expected attritional losses based on modeling. Due to the short-tail nature of property business, reported loss experience emerges quickly and ultimate losses are known in a reasonably short period of time.
In the initial reserving process for medium-tail and long-tail reinsurance lines (consisting of casualty, other specialty, marine and aviation and other exposures), the Company primarily relies on the expected loss method. The development of medium-tail and long-tail business may be unstable, especially if there are high severity major events, with business written on an excess of loss basis typically having a longer tail than business written on a pro rata basis. As time passes, for a given underwriting year, additional weight is given to the paid and incurred B-F loss development methods and eventually to the historical paid
and incurred loss development methods in the reserving process. Our reinsurance operations make a number of key assumptions in reserving for
medium-tail and long-tail lines, including that the pricing loss ratio is the best estimate of the ultimate loss ratio at the time the contract is entered into, historical paid and reported development patterns are stable and claims personnel and underwritersunderwriters’ analyses of our exposure to major events are assumed to be our best estimate of our exposure to the known claims on those events. The expected loss ratios used in our reinsurance operations’ initial reserving process for medium-tail and long-tail contracts have varied over time due to changes in pricing, terms and conditions and reinsurance structure. As the credibility of historical experience for earlier underwriting years increases, the experience from these underwriting years will beis used in the actuarial analysis to determine future underwriting year expected loss ratios, adjusted for changes in pricing, loss trends, terms and conditions and reinsurance structure.
The following tables present information on the reinsurance segment’s short-duration insurance contracts:
Casualty ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $264,480
 $284,826
 $302,754
 $282,973
 $278,150
 $267,531
 $251,072
 $236,678
 $233,385
 $229,352
 $23,066
 N/A
2010   195,690
 196,680
 199,759
 191,255
 180,620
 169,558
 163,692
 159,617
 153,833
 28,667
 N/A $189,406
 $190,639
 $193,935
 $185,429
 $175,107
 $164,530
 $158,797
 $154,969
 $149,360
 $145,012
 $22,988
 N/A
2011     152,868
 156,477
 150,389
 145,464
 141,168
 138,025
 131,996
 129,198
 27,389
 N/A   149,186
 152,793
 146,786
 141,854
 137,580
 134,486
 128,535
 125,712
 127,056
 23,269
 N/A
2012       146,883
 144,812
 140,684
 128,804
 118,515
 112,924
 121,523
 35,014
 N/A     142,523
 140,694
 136,540
 124,626
 114,660
 109,376
 118,026
 121,306
 32,311
 N/A
2013         168,454
 161,653
 157,664
 151,365
 139,105
 137,497
 46,862
 N/A       165,465
 158,693
 154,478
 148,223
 136,163
 134,615
 130,954
 39,769
 N/A
2014           217,119
 222,346
 219,445
 232,855
 229,403
 59,924
 N/A         216,073
 221,252
 218,392
 232,303
 228,802
 238,510
 52,506
 N/A
2015             221,440
 220,485
 228,753
 235,910
 74,096
 N/A           222,008
 220,835
 229,481
 236,743
 240,762
 65,978
 N/A
2016               212,415
 225,043
 247,457
 90,163
 N/A             213,803
 226,214
 249,540
 264,406
 73,050
 N/A
2017                 262,678
 249,862
 100,635
 N/A               264,219
 250,550
 265,751
 78,119
 N/A
2018                   275,614
 232,788
 N/A                 278,129
 292,526
 167,212
 N/A
2019                   326,258
 254,304
 N/A
                 Total $2,009,649
                    Total $2,152,541
   
                                              
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance   Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance   
2009 $3,239
 $19,340
 $46,999
 $73,749
 $105,497
 $134,997
 $149,179
 $159,636
 $169,140
 $176,526
   
2010   2,180
 21,441
 39,111
 54,296
 72,570
 83,198
 94,225
 102,156
 110,752
    $2,135
 $20,781
 $37,608
 $51,467
 $69,362
 $79,732
 $90,611
 $98,414
 $106,944
 $108,584
   
2011     2,313
 11,945
 22,654
 39,982
 56,246
 65,948
 73,075
 78,356
      2,300
 11,403
 21,541
 38,315
 54,298
 63,712
 70,578
 75,747
 81,596
   
2012       1,329
 8,827
 15,600
 27,018
 38,493
 50,045
 61,845
        1,294
 8,458
 14,648
 25,468
 36,497
 47,732
 59,423
 69,776
   
2013         2,525
 10,146
 23,712
 44,315
 56,084
 64,778
          2,466
 9,902
 22,998
 43,009
 54,496
 63,035
 70,674
   
2014           3,963
 16,171
 41,141
 64,055
 91,670
            3,912
 16,038
 40,763
 63,376
 90,965
 114,226
   
2015             4,467
 20,285
 47,155
 70,895
              4,457
 20,254
 47,198
 70,956
 96,592
   
2016               5,705
 25,677
 51,653
                5,735
 25,643
 51,641
 86,681
   
2017                 6,428
 29,376
                  6,425
 29,376
 59,262
   
2018                   7,582
                    7,579
 31,572
   
2019                   16,101
   
         Total  743,433
            Total  735,064
   
         All outstanding liabilities before 2009, net of reinsurance  271,596
            All outstanding liabilities before 2010, net of reinsurance  290,219
   
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $1,537,812
          Liabilities for losses and loss adjustment expenses, net of reinsurance  $1,707,696
   






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Property catastrophe ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $74,406
 $32,329
 $19,638
 $18,130
 $16,999
 $16,750
 $15,814
 $15,480
 $13,538
 $13,690
 $1
 N/A
2010   92,783
 47,040
 38,740
 38,643
 42,154
 42,552
 42,349
 42,553
 42,367
 
 N/A $92,632
 $47,218
 $38,916
 $38,823
 $42,333
 $42,732
 $42,535
 $42,738
 $42,544
 $43,500
 $
 N/A
2011     203,928
 183,818
 165,421
 152,746
 148,913
 148,187
 145,987
 141,909
 
 N/A   203,903
 183,897
 165,402
 152,784
 148,956
 148,230
 146,028
 141,950
 140,905
 
 N/A
2012       150,095
 123,138
 108,615
 102,141
 99,915
 99,101
 97,066
 165
 N/A     149,918
 122,948
 108,624
 102,158
 99,931
 99,118
 97,084
 97,192
 164
 N/A
2013         66,815
 47,542
 36,216
 31,735
 29,191
 28,479
 (122) N/A       66,695
 47,409
 36,133
 31,664
 29,119
 28,400
 27,532
 (125) N/A
2014           44,905
 30,625
 25,154
 22,327
 20,586
 91
 N/A         44,896
 30,625
 25,114
 22,263
 20,527
 19,822
 (10) N/A
2015             32,210
 16,882
 10,603
 4,664
 465
 N/A           32,159
 16,787
 10,497
 4,546
 2,715
 184
 N/A
2016               22,814
 16,233
 12,617
 1,287
 N/A             23,411
 16,786
 13,044
 9,370
 639
 N/A
2017                 78,404
 45,517
 (1,334) N/A               78,418
 45,467
 42,594
 (3,620) N/A
2018                   72,695
 8,864
 N/A                 72,769
 59,033
 4,671
 N/A
2019                   43,497
 15,329
 N/A
                 Total $479,590
                    Total $486,160
   
                                              
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance   Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance   
2009 $9,913
 $13,355
 $13,192
 $14,755
 $15,006
 $15,009
 $15,034
 $15,051
 $13,448
 $13,445
   
2010   8,445
 23,340
 31,273
 37,207
 38,388
 39,963
 41,204
 41,258
 41,436
    $8,464
 $23,406
 $31,371
 $37,332
 $38,527
 $40,092
 $41,357
 $41,411
 $41,593
 $41,901
   
2011     59,506
 82,096
 113,268
 127,940
 133,416
 135,903
 137,945
 138,333
      59,545
 82,065
 113,275
 127,960
 133,439
 135,928
 137,967
 138,355
 138,911
   
2012       25,850
 70,840
 83,852
 90,757
 92,916
 94,045
 94,655
        25,850
 70,836
 83,869
 90,774
 92,933
 94,062
 94,672
 95,359
   
2013         12,081
 19,070
 23,904
 25,768
 27,542
 27,784
          12,126
 19,095
 23,872
 25,704
 27,450
 27,690
 27,694
   
2014           13,668
 19,851
 18,330
 19,159
 18,751
            13,657
 19,823
 18,280
 19,108
 18,699
 18,892
   
2015             (3,689) (3,224) 884
 1,148
              (3,689) (3,422) 784
 1,044
 569
   
2016               (7,528) 1,038
 1,305
                (7,324) 1,331
 1,593
 2,778
   
2017                 28,736
 27,476
                  28,735
 27,463
 31,558
   
2018                   25,463
                    25,481
 11,872
   
2019                   3,903
   
         Total  389,796
            Total  373,437
   
         All outstanding liabilities before 2009, net of reinsurance  795
            All outstanding liabilities before 2010, net of reinsurance  330
   
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $90,589
          Liabilities for losses and loss adjustment expenses, net of reinsurance  $113,053
   
Property excluding property catastrophe ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $215,898
 $193,095
 $170,632
 $163,862
 $163,105
 $161,027
 $158,150
 $148,637
 $147,851
 $147,699
 $677
 N/A
2010   142,370
 128,120
 117,896
 112,218
 110,263
 108,137
 104,365
 101,187
 100,407
 1,463
 N/A $142,466
 $128,147
 $117,919
 $112,249
 $110,319
 $108,188
 $104,403
 $101,224
 $100,442
 $99,299
 $821
 N/A
2011     206,299
 179,130
 166,638
 162,988
 158,847
 157,551
 155,295
 154,280
 3,749
 N/A   206,803
 179,479
 166,987
 163,262
 159,117
 157,811
 155,539
 154,519
 153,198
 1,531
 N/A
2012       155,798
 121,450
 123,595
 119,032
 114,621
 112,406
 110,941
 3,301
 N/A     156,087
 121,698
 123,613
 119,040
 114,617
 112,398
 110,927
 108,374
 850
 N/A
2013         115,395
 76,864
 70,525
 66,159
 64,437
 63,660
 2,850
 N/A       115,375
 76,856
 70,499
 66,121
 64,397
 63,616
 62,423
 787
 N/A
2014           143,078
 117,057
 98,948
 90,699
 88,429
 5,785
 N/A         143,307
 117,304
 99,198
 90,708
 88,436
 84,134
 3,430
 N/A
2015             213,438
 188,073
 183,747
 187,936
 14,017
 N/A           213,740
 188,293
 183,977
 188,219
 187,493
 13,082
 N/A
2016               175,193
 144,617
 136,710
 21,416
 N/A             176,017
 145,251
 137,493
 136,298
 19,522
 N/A
2017                 255,485
 237,905
 27,440
 N/A               256,757
 239,608
 226,555
 21,691
 N/A
2018                   221,278
 80,569
 N/A                 222,345
 240,094
 31,217
 N/A
2019                   213,206
 94,880
 N/A
                 Total $1,449,245
                    Total $1,511,074
   
                                              
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance   Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance   
2009 $66,121
 $116,563
 $133,842
 $138,188
 $140,019
 $142,531
 $143,640
 $144,448
 $145,558
 $146,035
   
2010   37,778
 76,414
 88,181
 93,343
 95,533
 96,681
 97,326
 97,756
 97,697
    $37,776
 $76,429
 $88,196
 $93,354
 $95,571
 $96,718
 $97,363
 $97,793
 $97,733
 $97,842
   
2011     47,484
 121,037
 140,893
 145,387
 147,439
 148,540
 148,788
 149,060
      47,605
 121,234
 141,120
 145,621
 147,675
 148,777
 149,019
 149,291
 150,305
   
2012       26,072
 77,939
 93,151
 101,820
 102,796
 103,432
 102,610
        26,109
 77,957
 93,165
 101,831
 102,801
 103,435
 102,612
 102,552
   
2013         25,973
 42,704
 49,790
 52,968
 53,767
 55,648
          25,955
 42,669
 49,753
 52,931
 53,730
 55,609
 61,118
   
2014           23,509
 62,797
 71,677
 76,619
 78,260
            23,500
 62,790
 71,691
 76,632
 78,271
 78,659
   
2015             75,296
 118,438
 148,889
 159,754
              75,325
 118,655
 149,122
 160,029
 165,186
   
2016               33,191
 94,313
 98,126
                33,282
 94,875
 98,708
 104,085
   
2017                 25,135
 115,914
                  25,258
 116,304
 145,172
   
2018                   29,358
                    29,478
 107,496
   
2019                   45,380
   
         Total  1,032,462
            Total  1,057,795
   
         All outstanding liabilities before 2009, net of reinsurance  4,589
            All outstanding liabilities before 2010, net of reinsurance  5,302
   
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $421,372
          Liabilities for losses and loss adjustment expenses, net of reinsurance  $458,581
   






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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Marine and aviation ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsuranceIncurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
   Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
 Year ended December 31,  Year ended December 31, 
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019 
2009 $49,837
 $41,300
 $35,522
 $33,814
 $30,963
 $29,720
 $28,292
 $28,044
 $27,092
 $26,476
 $1,597
 N/A
2010   40,974
 42,297
 38,519
 35,425
 33,522
 31,907
 31,157
 30,325
 28,515
 130
 N/A $40,973
 $42,297
 $38,520
 $35,428
 $33,524
 $31,910
 $31,160
 $30,331
 $28,521
 $28,347
 $32
 N/A
2011     39,322
 32,910
 35,845
 32,402
 28,780
 27,183
 27,244
 24,854
 2,046
 N/A   39,323
 32,910
 35,848
 32,405
 28,785
 27,188
 27,253
 24,863
 23,783
 1,541
 N/A
2012       59,021
 58,869
 55,030
 52,260
 51,052
 49,693
 46,011
 5,070
 N/A     59,013
 58,857
 55,027
 52,261
 51,053
 49,697
 46,019
 43,000
 4,052
 N/A
2013         39,029
 37,854
 36,807
 35,372
 35,271
 34,526
 8,757
 N/A       39,025
 37,841
 36,796
 35,364
 35,265
 34,528
 34,084
 8,204
 N/A
2014           30,982
 29,193
 27,389
 25,687
 23,684
 7,340
 N/A         30,949
 29,140
 27,334
 25,633
 23,635
 23,270
 6,819
 N/A
2015             33,782
 37,570
 31,780
 31,707
 6,587
 N/A           33,831
 37,614
 31,831
 31,770
 30,822
 5,769
 N/A
2016               27,353
 22,727
 23,545
 12,237
 N/A             27,366
 22,752
 23,569
 19,279
 10,917
 N/A
2017                 28,738
 26,291
 13,156
 N/A               28,796
 26,342
 23,806
 10,283
 N/A
2018                   28,124
 20,582
 N/A                 28,164
 26,206
 13,754
 N/A
2019                   39,801
 23,090
 N/A
                 Total $293,733
                    Total $292,398
   
                                              
Cumulative paid losses and allocated loss adjustment expenses, net of reinsuranceCumulative paid losses and allocated loss adjustment expenses, net of reinsurance   Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance   
2009 $6,858
 $16,189
 $19,311
 $22,416
 $22,491
 $22,834
 $23,424
 $23,911
 $24,011
 $24,254
   
2010   8,523
 13,402
 16,751
 18,478
 20,218
 26,529
 27,176
 27,538
 27,113
    $8,523
 $13,402
 $16,752
 $18,478
 $20,220
 $26,535
 $27,182
 $27,544
 $27,119
 $27,118
   
2011     4,420
 12,121
 16,528
 19,227
 15,944
 16,617
 21,971
 21,894
      4,420
 12,121
 16,529
 19,231
 15,952
 16,626
 21,979
 21,903
 21,965
   
2012       2,658
 11,438
 27,527
 33,295
 35,031
 36,227
 37,711
        2,657
 11,434
 27,518
 33,294
 35,033
 36,232
 37,719
 38,010
   
2013         4,940
 13,842
 18,519
 21,505
 22,508
 23,776
          4,932
 13,845
 18,511
 21,500
 22,510
 23,778
 24,155
   
2014           4,190
 8,001
 11,592
 12,463
 14,637
            4,151
 7,946
 11,538
 12,410
 14,583
 15,016
   
2015             2
 13,420
 19,021
 20,846
              5
 13,436
 19,052
 20,888
 22,663
   
2016               (7,321) (1,686) 504
                (7,317) (1,676) 523
 3,258
   
2017                 1,651
 6,472
                  1,657
 6,516
 9,339
   
2018                   1,996
                    2,001
 7,015
   
2019                   9,074
   
         Total  179,203
            Total  177,613
   
         All outstanding liabilities before 2009, net of reinsurance  16,118
            All outstanding liabilities before 2010, net of reinsurance  17,110
   
       Liabilities for losses and loss adjustment expenses, net of reinsurance  $130,648
          Liabilities for losses and loss adjustment expenses, net of reinsurance  $131,895
   
Other specialty ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
    Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
  Year ended December 31,  
Accident year 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019  
2010 $43,160
 $32,881
 $26,070
 $23,827
 $22,821
 $22,461
 $22,222
 $21,990
 $21,382
 $21,171
 $670
 N/A
2011   112,256
 97,229
 93,206
 91,553
 89,670
 88,313
 87,708
 85,812
 86,232
 2,679
 N/A
2012     221,101
 210,448
 200,482
 194,895
 192,692
 195,632
 193,811
 188,044
 12,317
 N/A
2013       251,978
 225,620
 215,711
 212,088
 213,089
 210,698
 210,201
 15,212
 N/A
2014         275,419
 256,819
 258,738
 251,960
 246,896
 248,573
 19,791
 N/A
2015           210,183
 201,558
 199,726
 196,972
 197,337
 24,609
 N/A
2016             223,625
 221,177
 215,354
 210,053
 26,895
 N/A
2017               275,721
 265,098
 255,873
 44,453
 N/A
2018                 333,228
 328,750
 80,916
 N/A
2019                   372,747
 170,179
 N/A
                  Total $2,118,981
    
                         
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2010 $4,049
 $13,424
 $16,559
 $17,584
 $18,366
 $18,943
 $19,165
 $19,783
 $19,802
 $19,818
    
2011   28,875
 57,832
 69,981
 74,604
 78,073
 79,803
 81,984
 83,080
 82,787
    
2012     45,128
 120,600
 143,106
 154,202
 161,902
 166,066
 170,374
 172,137
    
2013       56,857
 118,642
 144,491
 160,651
 170,279
 175,474
 182,911
    
2014         68,948
 146,900
 182,625
 195,903
 202,401
 213,450
    
2015           54,762
 114,768
 138,794
 145,820
 154,816
    
2016             64,928
 138,782
 162,836
 174,625
    
2017               74,926
 167,782
 197,699
    
2018                 74,550
 208,755
    
2019                   83,456
    
          Total  1,490,454
    
          All outstanding liabilities before 2010, net of reinsurance  9,262
    
        Liabilities for losses and loss adjustment expenses, net of reinsurance  $637,789
    

Other specialty ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018
    Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of reported claims
  Year ended December 31,  
Accident year 2009
unaudited
 2010
unaudited
 2011
unaudited
 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  
2009 $60,519
 $49,729
 $44,643
 $38,585
 $36,475
 $34,481
 $35,639
 $36,080
 $37,019
 $35,495
 $1,301
 N/A
2010   43,327
 33,029
 26,188
 23,943
 22,945
 22,593
 22,356
 22,117
 21,503
 1,218
 N/A
2011     111,939
 96,897
 92,835
 91,215
 89,395
 88,033
 87,430
 85,533
 1,622
 N/A
2012       220,373
 209,461
 199,250
 193,549
 191,472
 194,484
 192,687
 17,581
 N/A
2013         250,247
 224,173
 214,239
 210,697
 211,767
 209,288
 22,085
 N/A
2014           275,308
 256,735
 258,643
 251,837
 246,727
 25,557
 N/A
2015             210,349
 201,875
 200,065
 197,231
 31,932
 N/A
2016               222,374
 219,923
 214,107
 37,828
 N/A
2017                 274,622
 264,006
 67,191
 N/A
2018                   331,820
 152,632
 N/A
                  Total $1,798,397
    
                         
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2009 $9,243
 $27,483
 $30,345
 $30,215
 $30,192
 $30,075
 $30,557
 $31,318
 $31,436
 $31,429
    
2010   4,071
 13,501
 16,659
 17,687
 18,472
 19,058
 19,282
 19,900
 19,920
    
2011     28,762
 57,599
 69,698
 74,285
 77,714
 79,464
 81,681
 82,786
    
2012       44,904
 119,940
 142,174
 152,998
 160,628
 164,730
 169,057
    
2013         56,274
 117,679
 143,336
 159,422
 168,992
 174,030
    
2014           68,953
 146,920
 182,603
 195,817
 202,233
    
2015             54,806
 114,909
 138,982
 145,929
    
2016               64,680
 137,654
 161,559
    
2017                 74,500
 165,926
    
2018                   74,300
    
          Total  1,227,169
    
          All outstanding liabilities before 2009, net of reinsurance  9,100
    
        Liabilities for losses and loss adjustment expenses, net of reinsurance  $580,328
    




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The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2018:2019:
  Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
Casualty 2.2% 7.5% 9.7% 11.4% 10.8 % 8.0% 7.1% 6.0% 5.2 % 1.1%
Property catastrophe 10.7% 25.5% 28.8% 9.2% (0.7)% 1.7% 1.2% 0.4% 0.4 % 0.7%
Property excluding property catastrophe 27.2% 38.8% 11.6% 5.3% 1.7 % 1.2% 2.2% 0.2% 0.3 % 0.1%
Marine and aviation 8.7% 25.0% 17.3% 9.1% 2.4 % 6.7% 7.3% 0.5% (0.6)% %
Other specialty 26.4% 35.7% 12.9% 5.5% 3.9 % 2.8% 2.4% 1.7% (0.1)% 0.1%
  Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10
Casualty 1.9% 7.6% 10.0% 11.3% 11.4% 8.6% 7.1% 4.6% 4.9 % 3.2%
Property catastrophe 22.9% 28.0% 19.1% 8.4% 2.5% 1.5% 1.3% 0.2% (5.6)% %
Property excluding property catastrophe 29.2% 38.2% 11.3% 5.0% 1.5% 1.4% 0.2% 0.4% 0.3 % 0.3%
Marine and aviation 9.4% 25.4% 16.5% 8.5% 1.5% 6.5% 7.3% 0.9% (0.6)% 0.9%
Other specialty 26.5% 36.4% 12.3% 4.6% 3.1% 1.8% 1.8% 2.1% 0.2 % %

Mortgage Segment
The Company’s mortgage segment includes (1) direct mortgage insurance in the U.S., (2) direct mortgage insurance in Europe, (3) global mortgage reinsurance and (4) participation in various GSE credit risk-sharing products, with the latter three categories along with second lien and student loan exposures excluded on the basis of insignificance for the purposes of presenting disclosures related to short duration contracts.
For direct mortgage insurance business, the Company establishes case reserves for loans that have been reported as delinquent by loan servicers as well as those that are delinquent but not reported (IBNR reserves). The Company’s U.S. mortgage insurance operations also reserve for the expenses of adjusting claims related to these delinquencies. The trigger that creates a case reserve estimate is that an insured loan is reported to us as being two payments in arrears. The actuarial reviews and documentation created in the reserving process are completed in accordance with generally accepted actuarial standards. The selected assumptions reflect the actuary’s judgment based on historical data and experience combined with information concerning current underwriting, economic, judicial, regulatory and other influences on ultimate claim settlements.
Because the reserving process requires the Company to forecast future conditions, it is inherently uncertain and requires significant judgment and estimation. The use of different estimates would result in the establishment of different reserve levels. Additionally, changes in accounting estimates are likely to occur from period to period as economic conditions change and the ultimate liability may vary significantly from the estimates used. Major risk factors include (but are not limited to) changes in home prices and borrower equity, which can limit the borrower’s ability to sell the property and satisfy the outstanding loan balance, and changes in unemployment, which can affect the borrower’s income and ability to make mortgage payments.
The lead methodology used by the Company is a frequency-severity method based on the inventory of pending delinquencies. Each month the loan servicers report the delinquency status of each insured loan. Using the frequency-severity method allows the Company to take advantage of its knowledge of the number of delinquent loans and the coverage
 
provided (“risk size”) on those loans by directly relating the reserves to these amounts. The delinquencies are grouped into homogeneous cohorts for analysis, reflecting product type and age of delinquency. A claim rate is then developed for each cohort which represents the frequency with which the delinquencies become claims. The claim frequency rates are based on an analysis of the patterns of emerging cure counts and claim counts, the foreclosure status of the pending delinquencies, the product and geographical mix of the delinquencies and our view of future economic and claim conditions, which include trends in home prices and unemployment. Claim rates can vary materially by age of delinquency, depending on the mix of delinquencies and economic conditions.
Claim size severity estimates are determined by examining the risk sizes on the delinquent loans and estimating the portion of risk that will be paid, as well as any expenses. This is done based on a review of historical development patterns, an assessment of economic conditions and the level of equity the borrowers may have in their homes, as well as considering economic conditions and loss mitigation opportunities. Mortgage insurance is generally not subject to large claim sizes, as with some other lines of insurance. A claim size over $250,000 is rare, and this helps reduce the volatility of claim size estimates. The claim rate and claim size assumptions generate case reserves for the population of reported delinquencies. The reserve for unreported delinquencies (included in IBNR reserves) is estimated by looking at historical patterns of reporting. Claim rates and claim sizes can then be assigned to estimated unreported delinquencies using assumptions made in the establishment of case reserves.
Mortgage insurance Loss Reserves are short-tail, in the sense that the vast majority of delinquencies are resolved within two years of being reported. While reserves are initially analyzed by reserve cohort, as described above, they are also rolled up by underwriting year to ensure that reserve assumptions are consistent with the performance of the underwriting year. The accuracy of prior reserve assumptions is also checked in hindsight to determine if adjustments to the assumptions are needed.
Loss Reserves for the Company’s mortgage reinsurance business and GSE credit-risk sharing transactions are comprised of case reserves and IBNR reserves. The Company’s mortgage reinsurance operations receive reports of delinquent




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mortgage reinsurance operations receive reports of delinquent loans and claims notices from ceding companies and record case reserves based upon the amount of reserves recommended
by the ceding company. In addition, specific claim and
delinquency information reported by ceding companies is used in the process of estimating IBNR reserves.
The tables below include the acquired business of UGCUnited Guaranty Corporation (“UGC”) (including United Guaranty Residential Insurance Company), across all periods presented. Due to the length of time for which claims incurred typically remain outstanding prior to payment and the Company’s formation of the mortgage segment in 2014, the Company determined that seveneight accident years was sufficient for its current disclosures. The following table presents information on the mortgage segment’s short-duration insurance contracts:
Direct mortgage insurance business in the U.S. ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2019
    Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of paid claims
Year ended December 31,    
Accident year 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018
unaudited
 2019  
2012 520,835
 480,592
 475,317
 469,238
 467,296
 459,467
 458,065
 456,286
 46
 15,052
2013   469,311
 419,668
 411,793
 405,809
 395,693
 393,149
 390,987
 38
 9,445
2014     316,095
 297,151
 279,434
 266,027
 265,992
 261,091
 68
 6,250
2015     
 222,790
 197,238
 198,001
 194,677
 189,235
 67
 4,490
2016       
 183,556
 170,532
 148,715
 140,608
 111
 3,334
2017         
 179,376
 132,220
 107,255
 212
 2,241
2018           
 132,318
 96,357
 616
 1,006
2019             
 108,424
 11,315
 87
            
 Total $1,750,243
    
                     
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2012 (106,065) 186,605
 327,605
 395,695
 426,024
 441,577
 448,151
 452,348
    
2013 
 41,447
 203,957
 308,956
 353,189
 373,909
 382,200
 386,853
    
2014   

 20,099
 129,159
 201,925
 233,879
 247,038
 254,175
    
2015     
 16,159
 92,431
 151,222
 171,337
 180,321
    
2016       
 11,462
 72,201
 113,357
 127,286
    
2017         

 8,622
 48,112
 78,650
    
2018           

 3,966
 31,478
    
2019             

 2,899
    
          1,514,010
    
        All outstanding liabilities before 2012, net of reinsurance  19,005
    
      Liabilities for losses and loss adjustment expenses, net of reinsurance  $255,238
    

Direct mortgage insurance business in the U.S. ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance December 31, 2018
  Total of IBNR liabilities plus expected development on reported claims 
Cumulative
number of paid claims
Year ended December 31,  
Accident year 2012
unaudited
 2013
unaudited
 2014
unaudited
 2015
unaudited
 2016
unaudited
 2017
unaudited
 2018  
2012 520,835
 480,592
 475,317
 469,238
 467,296
 459,467
 458,065
 223
 15,036
2013   469,311
 419,668
 411,793
 405,809
 395,693
 393,149
 237
 9,386
2014     316,095
 297,151
 279,434
 266,027
 265,992
 393
 6,170
2015       222,790
 197,238
 198,001
 194,677
 490
 4,330
2016         183,556
 170,532
 148,715
 876
 3,040
2017           179,376
 132,220
 2,765
 1,413
2018             132,318
 13,590
 132
            Total
 $1,725,136
    
                   
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance    
2012 (106,065) 186,605
 327,605
 395,695
 426,024
 441,577
 448,151
    
2013   41,447
 203,957
 308,956
 353,189
 373,909
 382,200
    
2014     20,099
 129,159
 201,925
 233,879
 247,038
    
2015       16,159
 92,431
 151,222
 171,337
    
2016         11,462
 72,201
 113,357
    
2017           8,622
 48,112
    
2018             3,966
    
        1,414,161
    
    All outstanding liabilities before 2012, net of reinsurance   36,051
    
        $347,026
    
The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2018:2019:
Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance    
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8
U.S. Primary 3.3% 42.3% 29.1% 11.8% 5.4% 2.8% 1.3% 0.9%
Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance  
  Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7
U.S. Primary 2.9% 42.7% 28.5% 12.1% 5.6% 2.8% 1.4%

Other Segment
Loss Reserves for the ‘other’ segment (i.e., Watford Re)Watford) are comprised of case reserves, ACRs and IBNR reserves. For all business assumed by Watford, Re, the Company acts as reinsurance underwriting manager, provides actuarial and risk management services and recommends a level of Loss Reserves to Watford Re.Watford. The Company does not guarantee or provide credit support for Watford, Re, and the Company’s financial exposure to Watford Re is limited to its investment in Watford Re’sWatford’s common and preferred shares and counterparty credit risk (mitigated by collateral) arising from the reinsurance transactions. The estimation of Loss Reserves for Watford Re is subject to the same risk factors as the estimation of Loss Reserves for the Company’s insurance, reinsurance and mortgage segments as described earlier.
Watford Re performs its own reserve reviews and sets its reserves independently. As noted previously, the Company determined that amounts in the
‘other’ ‘other’ segment are insignificant for the purposes of these footnote disclosures.
For the year ended December 31, 2018,2019, the Company did not make any significant changes in its methodologies or assumptions as described above (a) to determine the presented amounts of IBNR reserves, (b) for expected development on case reserves.
The Company measures claim frequency information on an individual claim count basis. Claim counts are provided for the insurance and mortgage segments, where reliable information is available. For insurance business, any claim which is reported to the Company is included in the count, even if it is


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subsequently settled without liability to the Company. The Company does not include claim count information for losses from U.S. insurance pool business where individual loss information is unavailable and impracticable to obtain. For mortgage business, only delinquencies which subsequently


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become claims are included in the claim count. For reinsurance business, claim counts are not provided. A significant amount of the Company’s reinsurance business is written on a proportional basis, for which individual loss information is typically unavailable and impracticable to obtain.
For the year ended December 31, 2018,2019, the Company did not make any significant changes in its methodologies or assumptions as described above to calculate the cumulative claim frequency.
The following table represents a reconciliation of the disclosures of net incurred and paid loss development tables to the reserve for losses and loss adjustment expenses at December 31, 2018:2019:
 December 31, 2019
Net outstanding liabilities 
Insurance 
Property, energy, marine and aviation$340,714
Third party occurrence business2,264,839
Third party claims-made business1,225,121
Multi-line and other specialty887,227
Reinsurance 
Casualty1,707,696
Property catastrophe113,053
Property excluding property catastrophe458,581
Marine and aviation131,895
Other specialty637,789
Mortgage 
U.S. primary255,238
Other short duration lines not included in disclosures (1)1,514,373
Total for short duration lines9,536,526
  
Unpaid losses and loss adjustment expenses recoverable 
Insurance 
Property, energy, marine and aviation213,004
Third party occurrence business1,105,669
Third party claims-made business728,511
Multi-line and other specialty189,613
Reinsurance 
Casualty532,387
Property catastrophe282,910
Property excluding property catastrophe48,554
Marine and aviation28,893
Other specialty206,022
Mortgage 
U.S. primary21,875
Other short duration lines not included in disclosures (2)1,472,777
Intercompany eliminations(696,931)
Total for short duration lines4,133,284
  
Lines other than short duration55,989
Discounting(22,012)
Unallocated claims adjustment expenses188,055
 222,032
  
Total gross reserves for losses and loss adjustment expenses$13,891,842
 December 31, 2018
Net outstanding liabilities 
Insurance 
Property, energy, marine and aviation$382,230
Third party occurrence business2,089,360
Third party claims-made business1,202,602
Multi-line and other specialty933,139
Reinsurance 
Casualty1,537,812
Property catastrophe90,589
Property excluding property catastrophe421,372
Marine and aviation130,648
Other specialty580,328
Mortgage 
U.S. primary347,026
Other short duration lines not included in disclosures (1)1,106,103
Total for short duration lines8,821,209
  
Unpaid losses and loss adjustment expenses recoverable 
Insurance 
Property, energy, marine and aviation313,715
Third party occurrence business996,451
Third party claims-made business684,063
Multi-line and other specialty156,964
Reinsurance 
Casualty524,304
Property catastrophe266,710
Property excluding property catastrophe44,180
Marine and aviation26,956
Other specialty117,408
Mortgage 
U.S. primary25,579
Other short duration lines not included in disclosures (2) (3)326,423
Intercompany eliminations(643,532)
Total for short duration lines2,839,221
  
Lines other than short duration35,320
Discounting(21,145)
Unallocated claims adjustment expenses178,692
 192,867
  
Total gross reserves for losses and loss adjustment expenses$11,853,297

(1)Includes net outstanding liabilities of $952 million$1.1 billion for the ‘other’ segment.
(2)Includes unpaid loss and loss adjustment expenses recoverable related to the acquisition of $40.5 million for the ‘other segment.
(3)Includes unpaid lossBarbican and loss adjustment expenses recoverable of $245.8$319.3 million related to the loss portfolio transfer reinsurance agreement.


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7.    Reinsurance
In the normal course of business, the Company’s insurance subsidiaries cede a portion of their premium through pro rata and excess of loss reinsurance agreements on a treaty or facultative basis. The Company’s reinsurance subsidiaries participate in “common account” retrocessional arrangements for certain pro rata treaties. Such arrangements reduce the effect of individual or aggregate losses to all companies participating on such treaties, including the reinsurers, such as the Company’s reinsurance subsidiaries, and the ceding company. In addition, the Company’s reinsurance subsidiaries may purchase retrocessional coverage as part of their risk management program. The Company’s mortgage subsidiaries cede a portion of their premium through quota share arrangements and enter into various aggregate excess of loss mortgage reinsurance agreements with various special purpose reinsurance companies. Reinsurance recoverables are recorded as assets, predicated on the reinsurers’ ability to meet their obligations under the reinsurance agreements. If the reinsurers are unable to satisfy their obligations under the agreements, the Company’s insurance or reinsurance subsidiaries would be liable for such defaulted amounts.
The effects of reinsurance on the Company’s written and earned premiums and losses and loss adjustment expenses with unaffiliated reinsurers were as follows:
 Year Ended December 31,
 2019 2018 2017
Premiums Written     
Direct$5,681,523
 $4,838,902
 $4,447,457
Assumed2,457,437
 2,122,102
 1,920,968
Ceded(2,099,893) (1,614,257) (1,407,052)
Net$6,039,067
 $5,346,747
 $4,961,373
      
Premiums Earned     
Direct$5,447,829
 $4,799,842
 $4,379,131
Assumed2,337,950
 1,988,038
 1,856,573
Ceded(1,999,281) (1,555,905) (1,391,172)
Net$5,786,498
 $5,231,975
 $4,844,532
      
Losses and Loss Adjustment Expenses     
Direct$2,953,072
 $2,472,133
 $2,568,327
Assumed1,602,528
 1,307,317
 1,442,077
Ceded(1,422,148) (889,344) (1,042,958)
Net$3,133,452
 $2,890,106
 $2,967,446

 Year Ended December 31,
 2018 2017 2016
Premiums Written     
Direct$4,838,902
 $4,447,457
 $3,337,690
Assumed2,122,102
 1,920,968
 1,864,444
Ceded(1,614,257) (1,407,052) (1,170,743)
Net$5,346,747
 $4,961,373
 $4,031,391
      
Premiums Earned     
Direct$4,799,842
 $4,379,131
 $3,192,653
Assumed1,988,038
 1,856,573
 1,730,884
Ceded(1,555,905) (1,391,172) (1,038,715)
Net$5,231,975
 $4,844,532
 $3,884,822
      
Losses and Loss Adjustment Expenses     
Direct$2,472,133
 $2,568,327
 $1,976,853
Assumed1,307,317
 1,442,077
 847,038
Ceded(889,344) (1,042,958) (638,292)
Net$2,890,106
 $2,967,446
 $2,185,599
Reinsurance Recoverables
The Company monitors the financial condition of its reinsurers and attempts to place coverages only with substantial, financially sound carriers. Although the Company has not experienced any material credit losses to date, an inability of its reinsurers or retrocessionaires to meet their obligations to it over the relevant exposure periods for any reason could have a material adverse effect on its financial condition and results of operations.
The following table summarizes the Company’s reinsurance recoverables on paid and unpaid losses (not


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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



including ceded unearned premiums) at December 31, 20182019 and 2017:2018:
December 31,December 31,
2018 20172019 2018
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses$2,919,372
 $2,540,143
$4,346,816
 $2,919,372
% due from carriers with A.M. Best rating of “A-” or better63.0% 69.9%61.2% 63.0%
% due from unrated fully collateralized reinsurers (1)12.9% 4.2%13.5% 12.9%
% due from all other carriers with no A.M. Best rating (2)24.1% 25.9%25.3% 24.1%
Largest balance due from any one carrier as % of total shareholders’ equity2.7% 2.2%1.7% 2.7%
(1)Such amount is fully collateralized through reinsurance trusts.
(2)Over 90% of such amount is collateralized through reinsurance trusts or letters of credit.


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Bellemeade Re
The Company has entered into various aggregate excess of loss mortgage reinsurance agreements with various special purpose reinsurance companies domiciled in Bermuda (the “Bellemeade Agreements”). For the respective coverage periods, the Company will retain the first layer of the respective aggregate losses and the special purpose reinsurance companies will provide second layer coverage up to the outstanding coverage amount. The Company will then retain losses in excess
of the outstanding coverage limit. The aggregate excess of loss reinsurance coverage decreases over a ten-year period as the underlying covered mortgages amortize.
The following table summarizes the respective coverages and retentions at December 31, 2018:2019:
 Initial Coverage at Issuance Coverage at Dec. 31, 2019 First Layer Retention
Bellemeade 2017-1 Ltd. (1)368,114
 216,429
 165,652
Bellemeade 2018-1 Ltd. (2)374,460
 328,482
 168,510
Bellemeade 2018-2 Ltd. (3)653,278
 437,009
 352,258
Bellemeade 2018-3 Ltd. (4)506,110
 426,806
 179,331
Bellemeade 2019-1 Ltd. (5)341,790
 257,358
 208,046
Bellemeade 2019-2 Ltd. (6)621,022
 525,959
 221,794
Bellemeade 2019-3 Ltd. (7)700,920
 656,523
 232,093
Bellemeade 2019-4 Ltd. (8)577,267
 577,267
 162,357
Total$4,142,961
 $3,425,833
 $1,690,041
 Initial Coverage at Issuance Coverage at Dec. 31, 2018 First Layer Retention
Bellemeade 2015-1 Ltd. (1)$300,000
 $43,246
 $129,900
Bellemeade 2017-1 Ltd. (2)368,100
 304,373
 165,700
Bellemeade 2018-1 Ltd. (3)374,460
 374,460
 168,510
Bellemeade 2018-2 Ltd. (4)653,278
 653,278
 352,258
Bellemeade 2018-3 Ltd. (5)506,110
 506,110
 179,331

(1)Issued in July 2015, covering in-force policies issued between January 1, 2009 and March 31, 2013.
(2)Issued in October 2017, covering in-force policies issued between January 1, 2017 and June 30, 2017.
(3)(2)Issued in April 2018, covering in-force policies issued between July 1, 2017 and December 31, 2017.
(4)(3)Issued in August 2018, covering in-force policies issued between April 1, 2013 and December 31, 2015.
(5)(4)Issued in October 2018, covering in-force policies issued between January 1, 2018 and June 30, 2018.
(5)Issued in March 2019, covering in-force policies primarily issued between 2005 to 2008 under United Guaranty Residential Insurance Company (“UGRIC”); as well as policies issued through 2015 under both UGRIC and Arch Mortgage Insurance Company.
(6)Issued in April 2019, covering in-force policies issued between July 1, 2018 and December 31, 2018.
(7)Issued in July 2019, covering in-force policies issued in 2016.
(8)Issued in October 2019, covering in-force policies issued between January 1, 2019 and June 30, 2019.




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8.    Investment Information
At December 31, 2018,2019, total investable assets of $22.32$24.99 billion included $19.57$22.29 billion held by the Company and $2.76$2.70 billion attributable to Watford Re.Watford.
Available For Sale Investments
The following table summarizes the fair value and cost or amortized cost of the Company’s securities classified as available for sale:
Estimated
Fair
Value
 Gross Unrealized Gains Gross Unrealized Losses 
Cost or Amortized
Cost
 OTTI Unrealized Losses (2)
December 31, 2019         
Fixed maturities (1):         
Corporate bonds$6,406,591
 $191,889
 $(12,793) $6,227,495
 $
Mortgage backed securities562,309
 9,669
 (931) 553,571
 (6)
Municipal bonds881,926
 24,628
 (2,213) 859,511
 
Commercial mortgage backed securities733,108
 14,951
 (2,330) 720,487
 
U.S. government and government agencies4,916,592
 36,600
 (10,134) 4,890,126
 
Non-U.S. government securities2,078,757
 48,549
 (20,330) 2,050,538
 
Asset backed securities1,683,753
 24,017
 (4,724) 1,664,460
 
Total17,263,036
 350,303
 (53,455) 16,966,188
 (6)
Short-term investments956,546
 811
 (1,548) 957,283
 
Total$18,219,582
 $351,114
 $(55,003) $17,923,471
 $(6)
Estimated
Fair
Value
 Gross Unrealized Gains Gross Unrealized Losses 
Cost or Amortized
Cost
 OTTI Unrealized Losses (2)         
December 31, 2018                  
Fixed maturities (1):                  
Corporate bonds$5,537,548
 $14,476
 $(105,428) $5,628,500
 $(69)$5,537,548
 $14,476
 $(105,428) $5,628,500
 $(69)
Mortgage backed securities541,193
 3,991
 (3,216) 540,418
 (6)541,193
 3,991
 (3,216) 540,418
 (6)
Municipal bonds1,013,395
 5,380
 (11,891) 1,019,906
 
1,013,395
 5,380
 (11,891) 1,019,906
 
Commercial mortgage backed securities729,442
 2,650
 (10,751) 737,543
 
729,442
 2,650
 (10,751) 737,543
 
U.S. government and government agencies3,758,698
 27,189
 (8,474) 3,739,983
 
3,758,698
 27,189
 (8,474) 3,739,983
 
Non-U.S. government securities1,771,338
 14,477
 (50,948) 1,807,809
 
1,771,338
 14,477
 (50,948) 1,807,809
 
Asset backed securities1,600,896
 8,060
 (14,798) 1,607,634
 
1,600,896
 8,060
 (14,798) 1,607,634
 
Total14,952,510
 76,223
 (205,506) 15,081,793
 (75)14,952,510
 76,223
 (205,506) 15,081,793
 (75)
Equity securities (3)         
Short-term investments955,880
 36
 (394) 956,238
 
955,880
 36
 (394) 956,238
 
Total$15,908,390
 $76,259
 $(205,900) $16,038,031
 $(75)$15,908,390
 $76,259
 $(205,900) $16,038,031
 $(75)
         
December 31, 2017         
Fixed maturities (1):         
Corporate bonds$4,434,439
 $30,943
 $(32,340) $4,435,836
 $(73)
Mortgage backed securities316,141
 1,640
 (2,561) 317,062
 (15)
Municipal bonds2,158,840
 20,285
 (12,308) 2,150,863
 
Commercial mortgage backed securities545,817
 2,131
 (4,268) 547,954
 
U.S. government and government agencies3,484,257
 2,188
 (28,769) 3,510,838
 
Non-U.S. government securities1,612,754
 48,764
 (17,321) 1,581,311
 
Asset backed securities1,780,143
 5,147
 (8,614) 1,783,610
 
Total14,332,391
 111,098
 (106,181) 14,327,474
 (88)
Equity securities504,333
 88,739
 (5,583) 421,177
 
Other investments264,989
 66,946
 (120) 198,163
 
Short-term investments1,469,042
 650
 (563) 1,468,955
 
Total$16,570,755
 $267,433
 $(112,447) $16,415,769
 $(88)
(1)In securities lending transactions, the Company receives collateral in excess of the fair value of the fixed maturities pledged. For purposes of this table, the Company has excluded the collateral received under securities lending, at fair value and included the securities pledged under securities lending, at fair value. See “—Securities Lending Agreements.”
(2)
Represents the total OTTI recognized in accumulated other comprehensive income (“AOCI”). It does not include the change in fair value subsequent to the impairment measurement date. At December 31, 2019 and 2018, the net unrealized gain related to securities for which a non-credit OTTI was recognized in AOCI was nil, compared to a net unrealized loss of $0.3 million at December 31, 2017.
(3)Effective January 1, 2018, the Company adopted new accounting guidance for financial instruments (see Note 3). As a result, equity securities are no longer accounted for as available for sale and are excluded from this table.NaN.







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The following table summarizes, for all available for sale securities in an unrealized loss position, the fair value and gross unrealized loss by length of time the security has been in a continual unrealized loss position:
Less than 12 Months 12 Months or More TotalLess than 12 Months 12 Months or More Total
Estimated Fair
Value
 Gross Unrealized Losses 
Estimated Fair
Value
 Gross Unrealized Losses 
Estimated Fair
Value
 Gross Unrealized Losses
December 31, 2019           
Fixed maturities (1):           
Corporate bonds$675,131
 $(12,350) $37,671
 $(443) $712,802
 $(12,793)
Mortgage backed securities102,887
 (927) 203
 (4) 103,090
 (931)
Municipal bonds220,296
 (2,213) 
 
 220,296
 (2,213)
Commercial mortgage backed securities147,290
 (2,302) 2,683
 (28) 149,973
 (2,330)
U.S. government and government agencies1,373,127
 (10,089) 32,058
 (45) 1,405,185
 (10,134)
Non-U.S. government securities1,224,243
 (20,163) 37,610
 (167) 1,261,853
 (20,330)
Asset backed securities441,522
 (3,334) 48,313
 (1,390) 489,835
 (4,724)
Total4,184,496
 (51,378) 158,538
 (2,077) 4,343,034
 (53,455)
Short-term investments95,777
 (1,548) 
 
 95,777
 (1,548)
Total$4,280,273
 $(52,926) $158,538
 $(2,077) $4,438,811
 $(55,003)
Estimated Fair
Value
 Gross Unrealized Losses 
Estimated Fair
Value
 Gross Unrealized Losses 
Estimated Fair
Value
 Gross Unrealized Losses           
December 31, 2018                      
Fixed maturities (1):                      
Corporate bonds$2,983,195
 $(68,910) $1,234,865
 $(36,518) $4,218,060
 $(105,428)$2,983,195
 $(68,910) $1,234,865
 $(36,518) $4,218,060
 $(105,428)
Mortgage backed securities84,296
 (695) 109,009
 (2,521) 193,305
 (3,216)84,296
 (695) 109,009
 (2,521) 193,305
 (3,216)
Municipal bonds233,081
 (2,074) 408,155
 (9,817) 641,236
 (11,891)233,081
 (2,074) 408,155
 (9,817) 641,236
 (11,891)
Commercial mortgage backed securities223,341
 (2,831) 193,956
 (7,920) 417,297
 (10,751)223,341
 (2,831) 193,956
 (7,920) 417,297
 (10,751)
U.S. government and government agencies635,049
 (1,354) 391,102
 (7,120) 1,026,151
 (8,474)635,049
 (1,354) 391,102
 (7,120) 1,026,151
 (8,474)
Non-U.S. government securities1,028,340
 (35,524) 389,671
 (15,424) 1,418,011
 (50,948)1,028,340
 (35,524) 389,671
 (15,424) 1,418,011
 (50,948)
Asset backed securities533,592
 (8,832) 368,095
 (5,966) 901,687
 (14,798)533,592
 (8,832) 368,095
 (5,966) 901,687
 (14,798)
Total5,720,894
 (120,220) 3,094,853
 (85,286) 8,815,747
 (205,506)5,720,894
 (120,220) 3,094,853
 (85,286) 8,815,747
 (205,506)
Equity securities (2)           
Short-term investments122,878
 (394) 
 
 122,878
 (394)122,878
 (394) 
 
 122,878
 (394)
Total$5,843,772
 $(120,614) $3,094,853
 $(85,286) $8,938,625
 $(205,900)$5,843,772
 $(120,614) $3,094,853
 $(85,286) $8,938,625
 $(205,900)
           
December 31, 2017           
Fixed maturities (1):           
Corporate bonds$2,320,716
 $(25,411) $279,082
 $(6,929) $2,599,798
 $(32,340)
Mortgage backed securities221,113
 (1,715) 28,380
 (846) 249,493
 (2,561)
Municipal bonds1,030,389
 (8,438) 132,469
 (3,870) 1,162,858
 (12,308)
Commercial mortgage backed securities225,164
 (1,899) 57,291
 (2,369) 282,455
 (4,268)
U.S. government and government agencies2,646,415
 (26,501) 111,879
 (2,268) 2,758,294
 (28,769)
Non-U.S. government securities1,218,514
 (15,546) 93,530
 (1,775) 1,312,044
 (17,321)
Asset backed securities1,111,246
 (5,915) 209,207
 (2,699) 1,320,453
 (8,614)
Total8,773,557
 (85,425) 911,838
 (20,756) 9,685,395
 (106,181)
Equity securities166,562
 (5,583) 
 
 166,562
 (5,583)
Other investments15,025
 (120) 
 
 15,025
 (120)
Short-term investments109,528
 (563) 
 
 109,528
 (563)
Total$9,064,672
 $(91,691) $911,838
 $(20,756) $9,976,510
 $(112,447)
(1)In securities lending transactions, the Company receives collateral in excess of the fair value of the fixed maturities pledged. For purposes of this table, the Company has excluded the collateral received and reinvested and included the fixed maturities pledged. See “—Securities Lending Agreements.”
(2)Effective January 1, 2018, the Company adopted new accounting guidance for financial instruments (see Note 3). As a result, equity securities are no longer accounted for as available for sale and are excluded from this table.

At December 31, 2019, on a lot level basis, approximately 2,230 security lots out of a total of approximately 9,590 security lots were in an unrealized loss position and the largest single unrealized loss from a single lot in the Company’s fixed maturity portfolio was $0.9 million. The Company believes that such securities were temporarily impaired at December 31, 2019. At December 31, 2018, on a lot level basis, approximately 5,870 security lots out of a total of approximately 8,450 security lots were in an unrealized loss position and the largest single unrealized loss from a single lot in the Company’s fixed maturity portfolio was $2.6 million. The Company believes that such securities were temporarily impaired at December 31, 2018. At December 31, 2017, on a lot level basis, approximately 3,830 security lots out of a total of approximately 7,450 security lots were in an unrealized loss position and the largest single unrealized loss from a single lot in the Company’s fixed maturity portfolio was $1.3 million.




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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






The contractual maturities of the Company’s fixed maturities and fixed maturities pledged under securities lending agreements are shown in the following table. Expected maturities, which are management’s best estimates, will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
  December 31, 2019 December 31, 2018
Maturity Estimated Fair Value Amortized Cost Estimated Fair Value Amortized Cost
Due in one year or less $428,659
 $423,617
 $276,682
 $279,135
Due after one year through five years 10,126,403
 9,996,206
 8,666,297
 8,738,944
Due after five years through 10 years 3,317,535
 3,219,567
 2,919,232
 2,951,582
Due after 10 years 411,269
 388,280
 218,768
 226,537
  14,283,866
 14,027,670
 12,080,979
 12,196,198
Mortgage backed securities 562,309
 553,571
 541,193
 540,418
Commercial mortgage backed securities 733,108
 720,487
 729,442
 737,543
Asset backed securities 1,683,753
 1,664,460
 1,600,896
 1,607,634
Total (1) $17,263,036
 $16,966,188
 $14,952,510
 $15,081,793
  December 31, 2018 December 31, 2017
Maturity Estimated Fair Value Amortized Cost Estimated Fair Value Amortized Cost
Due in one year or less $276,682
 $279,135
 $550,711
 $548,771
Due after one year through five years 8,666,297
 8,738,944
 7,436,153
 7,434,801
Due after five years through 10 years 2,919,232
 2,951,582
 3,369,635
 3,369,750
Due after 10 years 218,768
 226,537
 333,791
 325,526
  12,080,979
 12,196,198
 11,690,290
 11,678,848
Mortgage backed securities 541,193
 540,418
 316,141
 317,062
Commercial mortgage backed securities 729,442
 737,543
 545,817
 547,954
Asset backed securities 1,600,896
 1,607,634
 1,780,143
 1,783,610
Total (1) $14,952,510
 $15,081,793
 $14,332,391
 $14,327,474

(1)In securities lending transactions, the Company receives collateral in excess of the fair value of the fixed maturities pledged. For purposes of this table, the Company has excluded the collateral received and reinvested and included the fixed maturities pledged. See “—Securities Lending Agreements.”
Securities Lending Agreements
The Company enters into securities lending agreements with financial institutions to enhance investment income whereby it loans certain of its securities to third parties, primarily major brokerage firms, for short periods of time through a lending agent. The Company maintains legal control over the securities it lends, retains the earnings and cash flows associated with the loaned securities and receives a fee from the borrower for the temporary use of the securities. An indemnification agreement with the lending agent protects the Company in the event a borrower becomes insolvent or fails to return any of the securities on loan to the Company.
The Company receives collateral in the form of cash or securities. Cash collateral primarily consists of short-term investments. At December 31, 2019, the fair value of the cash collateral received on securities lending was $81.2 million and the fair value of security collateral received was $307.2 million. At December 31, 2018, the fair value of the cash collateral received on securities lending was $19.0 million and the fair value of security collateral received was $255.1 million. At December 31, 2017, the fair value of the cash collateral received on securities lending was $199.9 million and the fair value of security collateral received was $276.7 million. 
The Company’s securities lending transactions were accounted for as secured borrowings with significant investment categories as follows:
  Remaining Contractual Maturity of the Agreements
  Overnight and Continuous Less than 30 Days 30-90 Days 90 Days or More Total
December 31, 2019          
U.S. government and government agencies $240,332
 $
 $115,973
 $
 $356,305
Corporate bonds 2,570
 
 
 
 2,570
Equity securities 29,491
 
 
 
 29,491
Total $272,393
 $
 $115,973
 $
 $388,366
Gross amount of recognized liabilities for securities lending in offsetting disclosure in Note 10 
Amounts related to securities lending not included in offsetting disclosure in Note 10 $388,366
December 31, 2018          
U.S. government and government agencies $219,276
 $
 $32,583
 $
 $251,859
Corporate bonds 7,129
 
 
 
 7,129
Equity securities 15,137
 
 
 
 15,137
Total $241,542
 $
 $32,583
 $
 $274,125
Gross amount of recognized liabilities for securities lending in offsetting disclosure in Note 10 
Amounts related to securities lending not included in offsetting disclosure in Note 10 $274,125

  Remaining Contractual Maturity of the Agreements
  Overnight and Continuous Less than 30 Days 30-90 Days 90 Days or More Total
December 31, 2018          
U.S. government and government agencies $219,276
 $
 $32,583
 $
 $251,859
Corporate bonds 7,129
 
 
 
 7,129
Equity securities 15,137
 
 
 
 15,137
Total $241,542
 $
 $32,583
 $
 $274,125
Gross amount of recognized liabilities for securities lending in offsetting disclosure in Note 10 $
Amounts related to securities lending not included in offsetting disclosure in Note 10 $274,125
           
December 31, 2017          
U.S. government and government agencies $343,425
 $20,309
 $76,086
 $
 $439,820
Corporate bonds 28,003
 
 
 
 28,003
Equity securities 8,782
 
 
 
 8,782
Total $380,210
 $20,309
 $76,086
 $
 $476,605
Gross amount of recognized liabilities for securities lending in offsetting disclosure in Note 10 $
Amounts related to securities lending not included in offsetting disclosure in Note 10 $476,605






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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Equity Securities, at Fair Value
At December 31, 2018,2019, the Company held $338.9$838.9 million of equity securities, at fair value, compared to $495.8$338.9 million at December 31, 2017.2018. Pursuant to newapplicable accounting guidance, (see note 3, “Significant Accounting Policies - Recent Accounting Pronouncements”), changes in fair value on equity securities are recorded through net income effective January 1, 2018.
Other Investments
The following table summarizes the Company’s other investments, including availablewhich are included in investments accounted for sale andusing the fair value option, components:by strategy:

December 31,

2019
2018
Term loan investments1,326,018

1,282,287
Lending602,841

524,112
Credit related funds123,020

202,123
Energy97,402

117,509
Investment grade fixed income151,594

101,902
Infrastructure61,786

45,371
Private equity49,376

24,383
Real estate17,279

14,252
Total$2,429,316

$2,311,939


December 31,

2018
2017
Available for sale securities:




Asia and emerging markets$

$135,140
Investment grade fixed income

53,878
Credit related funds

18,365
Other

57,606
Total available for sale (1)

264,989
Fair value option:




Term loan investments (par value: $1,369,216 and $1,223,453)1,282,287

1,200,882
Lending524,112

399,099
Credit related funds202,123

181,744
Energy117,509

132,709
Investment grade fixed income101,902

102,347
Infrastructure45,371

82,291
Private equity24,383

23,593
Real estate14,252

13,716
Total fair value option2,311,939

2,136,381
Total$2,311,939

$2,401,370
(1)The Company reviewed the accounting treatment for three limited partnership investments which were accounted for as available for sale at December 31, 2017 during the 2018 first quarter and determined, based on reconsideration during the period of the Company’s percentage ownership, that the equity method of accounting was appropriate for such investments.
Investments Accounted For Using the Equity Method
The following table summarizes the Company’s investments accounted for using the equity method:method, by strategy:

December 31,

2018
2017
Credit related funds$429,402

$263,034
Equities375,273

292,762
Real estate232,647

176,328
Lending125,041

66,093
Private equity114,019

96,310
Infrastructure113,748

99,338
Energy103,661

47,457
Total$1,493,791

$1,041,322


December 31,

2019 2018
Credit related funds$428,437
 $429,402
Equities293,686
 375,273
Real estate246,851
 232,647
Lending202,690
 125,041
Private equity144,983
 114,019
Infrastructure235,033
 113,748
Energy108,716
 103,661
Total$1,660,396
 $1,493,791
In applying the equity method, investments are initially recorded at cost and are subsequently adjusted based on the Company’s proportionate share of the net income or loss of the funds (which include changes in the fair value of the underlying securities in the funds). Such investments are generally recorded on a one to three month lag based on the availability of reports from the investment funds.
A summary of financial information for the Company’s investmentsinvestment funds accounted for using the equity method is as follows:
December 31,December 31,
2018 20172019 2018
Invested assets$28,299,386
 $22,351,894
$26,383,370
 $28,299,386
Total assets29,833,681
 23,932,507
28,039,181
 29,833,681
Total liabilities3,406,612
 2,734,662
3,595,695
 3,406,612
Net assets$26,427,069
 $21,197,845
$24,443,486
 $26,427,069
 Year Ended December 31,
 2019 2018 2017
Total revenues$164,669
 $4,565,354
 $3,867,874
Total expenses528,762
 1,135,602
 782,773
Net income (loss)$(364,093) $3,429,752
 $3,085,101
 Year Ended December 31,
 2018 2017 2016
Total revenues$4,565,354
 $3,867,874
 $2,279,737
Total expenses1,135,602
 782,773
 656,940
Net income (loss)$3,429,752
 $3,085,101
 $1,622,797

Certain of the Company’s other investments and investments accounted for using the equity method are in investment funds for which the Company has the option to redeem at agreed upon values as described in each investment fund’s subscription agreement. Depending on the terms of the various subscription agreements, investments in investment funds may be redeemed daily, monthly, quarterly or on other terms. Two common redemption restrictions which may impact the Company’s ability to redeem these investment funds are gates and lockups. A gate is a suspension of redemptions which may be implemented by the general partner or investment manager of the fund in order to defer, in whole or in part, the redemption request in the event the aggregate amount of redemption requests exceeds a predetermined percentage of the investment fund's net assets which may otherwise hinder the general partner or investment manager's ability to liquidate holdings in an orderly fashion in order to generate the cash necessary to fund extraordinarily large redemption payouts. A lockup period is the initial amount of time an investor is contractually required to hold the security before having the ability to redeem. If the investment funds are eligible to be redeemed, the time to redeem such fund can take weeks or months following the notification.
Fair Value Option
The following table summarizes the Company’s assets which are accounted for using the fair value option:
 December 31,
 2019 2018
Fixed maturities$754,452
 $1,245,562
Other investments2,429,316
 2,311,939
Short-term investments377,014
 322,177
Equity securities102,695
 103,893
Investments accounted for using the fair value option$3,663,477
 $3,983,571





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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Fair Value Option
The following table summarizes the Company’s assets and liabilities which are accounted for using the fair value option:
 December 31,
 2018 2017
Fixed maturities$1,245,562
 $1,642,855
Other investments2,311,939
 2,136,381
Short-term investments322,177
 297,426
Equity securities103,893
 139,575
Investments accounted for using the fair value option$3,983,571
 $4,216,237
Limited Partnership Interests
In the normal course of its activities, the Company invests in limited partnerships as part of its overall investment strategy. Such amounts are included in ‘investments accounted for using the equity method’ and ‘investments accounted for using the fair value option.’ Based on the new accounting guidance for consolidation, theThe Company determined that these limited partnership interests represented variable interests in the funds because the general partner did not have a significant interest in the funds. The Company’s maximum exposure to loss with respect to these investments is limited to the investment carrying amounts reported in the Company’s consolidated balance sheet and any unfunded commitment.
The following table summarizes investments in limited partnership interests where the Company has a variable interest by balance sheet item:
December 31,December 31,
2018 20172019 2018
Investments accounted for using the equity method (1)$1,493,791
 $1,041,322
$1,660,396
 $1,493,791
Investments accounted for using the fair value option (2)162,398
 130,470
188,283
 162,398
Total$1,656,189
 $1,171,792
$1,848,679
 $1,656,189
(1)Aggregate unfunded commitments were $1.36 billion at December 31, 2019, compared to $1.22 billion at December 31, 2018, compared to $1.02 billion at December 31, 2017.2018.
(2)Aggregate unfunded commitments were $41.7 million at December 31, 2019, compared to $117.5 million at December 31, 2018, compared to $100.4 million at December 31, 2017.2018.
Net Investment Income
The components of net investment income were derived from the following sources:
 Year Ended December 31,
 2019 2018 2017
Fixed maturities$505,399
 $470,912
 $385,919
Term loans98,949
 87,926
 86,017
Equity securities15,857
 13,154
 11,752
Short-term investments15,820
 18,793
 10,964
Other (1)80,618
 64,942
 68,249
Gross investment income716,643
 655,727
 562,901
Investment expenses(88,905) (92,094) (92,029)
Net investment income$627,738
 $563,633
 $470,872
 Year Ended December 31,
 2018 2017 2016
Fixed maturities$470,912
 $385,919
 $295,502
Equity securities13,154
 11,752
 12,536
Short-term investments18,793
 10,964
 6,071
Other (1)152,868
 154,266
 132,815
Gross investment income655,727
 562,901
 446,924
Investment expenses(92,094) (92,029) (80,182)
Net investment income$563,633
 $470,872
 $366,742

(1)Includes income distributions from investment funds term loan investments and other items.


Net Realized Gains (Losses)
Net realized gains (losses) were as follows, excluding the other-than-temporary impairment provisions:
 Year Ended December 31,
 2019 2018 2017
Available for sale securities:     
Gross gains on investment sales$235,655
 $69,299
 $286,415
Gross losses on investment sales(104,612) (223,123) (203,873)
Change in fair value of assets and liabilities accounted for using the fair value option:     
Fixed maturities41,910
 (90,898) 29,451
Other investments(35,734) (90,778) 51,124
Equity securities15,869
 (5,984) 18,707
Short-term investments3,801
 (461) 272
Equity securities, at fair value (1):     
Net realized gains (losses) on securities sold11,313
 (40,117) 
Net unrealized gains (losses) on equity securities still held at reporting date97,768
 (22,828) 
Derivative instruments (2)119,741
 15,636
 (7,356)
Other (3)(19,348) (16,090) (25,599)
Net realized gains (losses)$366,363
 $(405,344) $149,141
 Year Ended December 31,
 2018 2017 2016
Available for sale securities:     
Gross gains on investment sales$69,299
 $286,415
 $309,896
Gross losses on investment sales(223,123) (203,873) (214,447)
Change in fair value of assets and liabilities accounted for using the fair value option:     
Fixed maturities(90,898) 29,451
 47,890
Other investments(90,778) 51,124
 58,687
Equity securities(5,984) 18,707
 366
Short-term investments(461) 272
 93
Equity securities, at fair value (1):     
Net realized gains (losses) on sales during the period(40,117) 
 
Net unrealized gains (losses) on equity securities still held at reporting date(22,828) 
 
Derivative instruments (2)15,636
 (7,356) (22,612)
Other (3)(16,090) (25,599) (42,287)
Net realized gains (losses)$(405,344) $149,141
 $137,586

(1)Pursuant to new accounting guidance (see Note 3),Effective January 1, 2018, changes in fair value on equity securities are recorded through net income effective January 1, 2018.income.
(2)See Note 10 for information on the Company’s derivative instruments.
(3)Includes the re-measurement of contingent consideration liability amounts.


Equity in Net Income (Loss) of Investments Accounted For Using the Equity Method
The Company recorded equity in net income related to investments accounted for using the equity method of $123.7 million for 2019, compared to $45.6


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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



million for 2018 compared toand $142.3 million for 2017 and $48.5 million for 2016.2017.
Other-Than-Temporary Impairments
The Company performs quarterly reviews of its available for sale investments in order to determine whether declines in fair value below the amortized cost basis were considered other-than-temporary in accordance with applicable guidance.


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ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



The following table details the net impairment losses recognized in earnings by asset class:
 Year Ended December 31,
 2019 2018 2017
Fixed maturities:     
Mortgage backed securities$(915) $(437) $(1,488)
Corporate bonds(1,256) (1,232) (2,884)
Non-U.S. government securities
 (290) (376)
Asset backed securities(994) (811) 
U.S. government and government agencies
 
 (426)
Municipal bonds
 
 (375)
Total(3,165) (2,770) (5,549)
Short-term investments
 (59) 
Equity securities
 
 (1,422)
Other investments
 
 (167)
Net impairment losses recognized in earnings$(3,165) $(2,829) $(7,138)
 Year Ended December 31,
 2018 2017 2016
Fixed maturities:     
Mortgage backed securities$(437) $(1,488) $(964)
Corporate bonds(1,232) (2,884) (5,674)
Non-U.S. government securities(290) (376) (823)
Asset backed securities(811) 
 (14,736)
U.S. government and government agencies
 (426) 
Municipal bonds
 (375) (726)
Total(2,770) (5,549) (22,923)
Short-term investments(59) 
 
Equity securities
 (1,422) (3,990)
Other investments
 (167) (3,529)
Net impairment losses recognized in earnings$(2,829) $(7,138) $(30,442)

A description of the methodology and significant inputs used to measure the amount of net impairment losses recognized in earnings in 20182019 is as follows:
Corporate bonds – the Company reviewed the business prospects, credit ratings, estimated loss given default factors, foreign currency impacts and information received from asset managers and rating agencies for certain corporate bonds. Impairment losses were primarily from foreign currency impacts;
Mortgage backed and asset backed securities – the Company utilized underlying data provided by asset managers, cash flow projections and additional information from credit agencies in order to determine an expected recovery value for each security;security.
Equity securities – the Company utilized information received from asset managers on common stocks, including the business prospects, recent events, industry and market data and other factors. Impairment losses were primarily on equities which were in an unrealized loss position for a significant length of time.
The Company believes that the OTTI included in accumulated other comprehensive income at December 31, 20182019 on the securities which were considered by the Company to be
impaired was due to market and sector-related factors (i.e., not credit losses). At December 31, 2018,2019, the Company did not intend to sell these securities, or any other securities which were in an unrealized loss position, and determined that it is more likely than not that the Company will not be required to sell such securities before recovery of their cost basis.
The following table provides a roll forward of the amount related to credit losses recognized in earnings for which a portion of an OTTI was recognized in accumulated other comprehensive income:
 Year Ended December 31,
 2019 2018 2017
Balance at start of year$637
 $767
 $13,138
Credit loss impairments recognized on securities not previously impaired
 
 31
Credit loss impairments recognized on securities previously impaired
 
 210
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security
 
 
Reductions for securities sold during the period(291) (130) (12,612)
Balance at end of year$346
 $637
 $767
 Year Ended December 31,
 2018 2017 2016
Balance at start of year$767
 $13,138
 $26,875
Credit loss impairments recognized on securities not previously impaired
 31
 2,186
Credit loss impairments recognized on securities previously impaired
 210
 582
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security
 
 
Reductions for securities sold during the period(130) (12,612) (16,505)
Balance at end of year$637
 $767
 $13,138

Restricted Assets
The Company is required to maintain assets on deposit, which primarily consist of fixed maturities, with various regulatory authorities to support its insurance and reinsuranceunderwriting operations. The Company’s insurance and reinsurance subsidiaries maintain assets in trust accounts as collateral for insurance and reinsurance transactions with affiliated companies and also have investments in segregated portfolios primarily to provide collateral or guarantees for letters of credit to third parties.parties
The following table details the value of the Company’s restricted assets:
December 31,December 31,
2018 20172019 2018
Assets used for collateral or guarantees:      
Affiliated transactions$4,623,483
 $4,323,726
$4,526,761
 $4,623,483
Third party agreements2,181,682
 1,674,304
2,278,248
 2,181,682
Deposits with U.S. regulatory authorities689,114
 616,987
797,371
 689,114
Deposits with non-U.S. regulatory authorities59,624
 55,895
119,238
 59,624
Total restricted assets$7,553,903
 $6,670,912
$7,721,618
 $7,553,903

In addition, Watford maintains a secured credit facility to provide borrowing capacity for investment purposes and a total return swap agreement and maintains assets pledged as collateral for such purposes. The Company does not guarantee or provide credit support for Watford, and the Company’s financial exposure to Watford is limited to its investment in Watford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from reinsurance transactions. As of December 31, 2019 and December 31, 2018, Watford held $1.0 billion and $1.3 billion, respectively, in pledged assets to collateralize the credit facility mentioned above.




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Reconciliation of Cash and Restricted Cash
The following table details reconciliation of cash and restricted cash within the Consolidated Balance Sheets:
 December 31,
 2019 2018 2017
Cash$726,230
 $646,556
 $606,199
Restricted cash (included in ‘other assets’)177,468
 78,087
 121,085
Cash and restricted cash$903,698
 $724,643
 $727,284
 December 31,
 2018 2017 2016
Cash$646,556
 $606,199
 $842,942
Restricted cash (included in ‘other assets’)78,087
 121,085
 126,627
Cash and restricted cash$724,643
 $727,284
 $969,569

9.    Fair Value
Accounting guidance regarding fair value measurements addresses how companies should measure fair value when they are required to use a fair value measure for recognition or disclosure purposes under GAAP and provides a common definition of fair value to be used throughout GAAP. It defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly fashion between market participants at the measurement date. In addition, it establishes a three-level valuation hierarchy for the disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The level in the hierarchy within which a given fair value measurement falls is determined based on the lowest level input that is significant to the measurement (Level 1 being the highest priority and Level 3 being the lowest priority).
The levels in the hierarchy are defined as follows:
Level 1:
Inputs to the valuation methodology are observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets
Level 2:Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument
Level 3:Inputs to the valuation methodology are unobservable and significant to the fair value measurement
Following is a description of the valuation methodologies used for securities measured at fair value, as well as the general classification of such securities pursuant to the valuation hierarchy. The Company reviews its securities measured at fair value and discusses the proper classification of such investments with investment advisers and others.
The Company determines the existence of an active market based on its judgment as to whether transactions for the financial
 
instrument occur in such market with sufficient frequency and volume to provide reliable pricing information. The independent pricing sources obtain market quotations and actual transaction prices for securities that have quoted prices in active markets. The Company uses quoted values and other data provided by nationally recognized independent pricing sources as inputs into its process for determining fair values of its fixed maturity investments. To validate the techniques or models used by pricing sources, the Company's review process includes, but is not limited to: (i) quantitative analysis (e.g., comparing the quarterly return for each managed portfolio to its target benchmark, with significant differences identified and investigated); (ii) a review of the prices obtained in the pricing process and the range of resulting fair values; (iii) initial and ongoing evaluation of methodologies used by outside parties to calculate fair value; (iv) a comparison of the fair value estimates to the Company’s knowledge of the current market; (v) a comparison of the pricing services' fair values to other pricing services' fair values for the same investments; and (vi) periodic back-testing, which includes randomly selecting purchased or sold securities and comparing the executed prices to the fair value estimates from the pricing service. A price source hierarchy was maintained in order to determine which price source would be used (i.e., a price obtained from a pricing service with more seniority in the hierarchy will be used over a less senior one in all cases). The hierarchy prioritizes pricing services based on availability and reliability and assigns the highest priority to index providers. Based on the above review, the Company will challenge any prices for a security or portfolio which are considered not to be representative of fair value.
In certain circumstances, when fair values are unavailable from these independent pricing sources, quotes are obtained directly from broker-dealers who are active in the corresponding markets. Such quotes are subject to the validation procedures noted above. Of the $22.9 billion of financial assets and liabilities measured at fair value at December 31, 2019, approximately $179.6 million, or 0.8%, were priced using non-binding broker-dealer quotes. Of the $20.4 billion of financial assets and liabilities measured at fair value at December 31, 2018, approximately $217.9 million, or 1.1%, were priced using non-binding broker-dealer quotes. Of the $20.9 billion of financial assets and liabilities measured at fair value at December 31, 2017, approximately $181.5 million, or 0.9%, were priced using non-binding broker-dealer quotes.
Fixed maturities
The Company uses the market approach valuation technique to estimate the fair value of its fixed maturity securities, when possible. The market approach includes obtaining prices from independent pricing services, such as index providers and pricing vendors, as well as to a lesser extent quotes from broker-dealers. The independent pricing sources obtain market quotations and actual transaction prices for securities that have quoted prices in active markets. Each source has its own proprietary method for determining the fair value of securities that are not actively traded. In general, these methods involve the use of “matrix pricing” in which the independent pricing




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source uses observable market inputs including, but not limited to, investment yields, credit risks and spreads, benchmarking of like securities, broker-dealer quotes, reported trades and sector groupings to determine a reasonable fair value. The following describes the significant inputs generally used to determine the fair value of the Company’s fixed maturity securities by asset class:
U.S. government and government agencies — valuations provided by independent pricing services, with all prices provided through index providers and pricing vendors. The Company determined that all U.S. Treasuries would be classified as Level 1 securities due to observed levels of trading activity, the high number of strongly correlated pricing quotes received on U.S. Treasuries and other factors. The fair values of U.S. government agency securities are generally determined using the spread above the risk-free yield curve. As the yields for the risk-free yield curve and the spreads for these securities are observable market inputs, the fair values of U.S. government agency securities are classified within Level 2.
Corporate bonds — valuations provided by independent pricing services, substantially all through index providers and pricing vendors with a small amount through broker-dealers. The fair values of these securities are generally determined using the spread above the risk-free yield curve. These spreads are generally obtained from the new issue market, secondary trading and from broker-dealers who trade in the relevant security market. As the significant inputs used in the pricing process for corporate bonds are observable market inputs, the fair value of these securities are classified within Level 2. During 2019, the Company transferred $25.8 million of corporate bonds from Level 2 to Level 3 based on a review of the pricing of such securities, as described above.
Mortgage-backed securities — valuations provided by independent pricing services, substantially all through pricing vendors and index providers with a small amount through broker-dealers. The fair values of these securities are generally determined through the use of pricing models (including Option Adjusted Spread) which use spreads to determine the expected average life of the securities. These spreads are generally obtained from the new issue market, secondary trading and from broker-dealers who trade in the relevant security market. The pricing services also review prepayment speeds and other indicators, when applicable. As the significant inputs used in the pricing process for mortgage-backed securities are observable market inputs, the fair value of these securities are classified within Level 2.
Municipal bonds — valuations provided by independent pricing services, with all prices provided through index providers and pricing vendors. The fair values of these securities are generally determined using spreads obtained from broker-dealers who trade in the relevant security market, trade prices and the new issue market. As the significant inputs used in the pricing process for municipal bonds are observable market
inputs, the fair value of these securities are classified within Level 2.
Commercial mortgage-backed securities — valuations provided by independent pricing services, substantially all through index providers and pricing vendors with a small amount through broker-dealers. The fair values of these securities are generally determined through the use of pricing models which use spreads to determine the appropriate average life of the securities. These spreads are generally obtained from the new issue market, secondary trading and from broker-dealers who trade in the relevant security market. As the significant inputs used in the pricing process for commercial mortgage-backed securities are observable market inputs, the fair value of these securities are classified within Level 2.
Non-U.S. government securities — valuations provided by independent pricing services, with all prices provided through index providers and pricing vendors. The fair values of these securities are generally based on international indices or valuation models which include daily observed yield curves, cross-currency basis index spreads and country credit spreads. As the significant inputs used in the pricing process for non-U.S. government securities are observable market inputs, the fair value of these securities are classified within Level 2.
Asset-backed securities — valuations provided by independent pricing services, substantially all through index providers and pricing vendors with a small amount through broker-dealers. The fair values of these securities are generally determined through the use of pricing models (including Option Adjusted Spread) which use spreads to determine the appropriate average life of the securities. These spreads are generally obtained from the new issue market, secondary trading and from broker-dealers who trade in the relevant security market. As the significant inputs used in the pricing process for asset-backed securities are observable market inputs, the fair value of these securities are classified within Level 2. A small number of securities are included in Level 3 due to a low level of transparency on the inputs used in the pricing process.
Equity securities
The Company determined that exchange-traded equity securities would be included in Level 1 as their fair values are based on quoted market prices in active markets. Other equity securities are included in Level 2 of the valuation hierarchy. A small number of securities are included in Level 3 due to the lack of an available independent price source for such securities. As the significant inputs used to price these securities are unobservable, the fair value of such securities are classified as Level 3. During the 2019 second quarter, the Company transferred $107.4 million of equity securities from Level 2 to Level 3 based on a review of the pricing of such securities, as described above.


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Other investments
The Company determined that exchange-traded investments would be included in Level 1 as their fair values are based on quoted market prices in active markets. Other investments also include term loan investments for which fair values are estimated by using quoted prices of term loan investments with similar characteristics, pricing models or matrix pricing. Such investments are generally classified within Level 2. A small number of securities are included in Level 3 due to the lack of an available independent price source for such securities. During 2019, the Company transferred $31.6 million of other investments from Level 2 to Level 3 based on a low levelreview of transparency on the inputs used in the pricing process. The fair values for certain of the Company’s other investments are


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determined using net asset valuessuch securities, as advised by external fund managers, based on the fund manager’s valuation of the underlying holdings in accordance with the fund’s governing documents. Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.described above.
Derivative instruments
The Company’s futures contracts, foreign currency forward contracts, interest rate swaps and other derivatives trade in the over-the-counter derivative market. The Company uses the market approach valuation technique to estimate the fair value for these derivatives based on significant observable market inputs from third party pricing vendors, non-binding broker-dealer quotes and/or recent trading activity. As the significant inputs used in the pricing process for these derivative instruments are observable market inputs, the fair value of these securities are classified within Level 2.
 
Short-term investments
The Company determined that certain of its short-term investments held in highly liquid money market-type funds, Treasury bills and commercial paper would be included in Level 1 as their fair values are based on quoted market prices in active markets. The fair values of other short-term investments are generally determined using the spread above the risk-free yield curve and are classified within Level 2.
Contingent consideration liabilities
Contingent consideration liabilities (included in ‘other liabilities’ in the consolidated balance sheets) include amounts related to the Company’s 2014 acquisition of CMG Mortgage Insurance Company and its affiliated mortgage insurance companies (the “CMG Entities”) and other acquisitions. Such amounts are remeasured at fair value at each balance sheet date with changes in fair value recognized in ‘net realized gains (losses).’ To determine the fair value of contingent consideration liabilities, the Company estimates future payments using an income approach based on modeled inputs which include a weighted average cost of capital. The Company determined that contingent consideration liabilities would be included within Level 3.






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The following table presents the Company’s financial assets and liabilities measured at fair value by level at December 31, 2018:2019:
   Fair Value Measurement Using:
 
Estimated
Fair Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Assets measured at fair value (1):       
Available for sale securities:       
Fixed maturities:       
Corporate bonds$6,406,591
 $
 $6,397,740
 $8,851
Mortgage backed securities562,309
 
 562,055
 254
Municipal bonds881,926
 
 881,926
 
Commercial mortgage backed securities733,108
 
 733,108
 
U.S. government and government agencies4,916,592
 4,805,581
 111,011
 
Non-U.S. government securities2,078,757
 
 2,078,757
 
Asset backed securities1,683,753
 
 1,678,791
 4,962
Total17,263,036
 4,805,581
 12,443,388
 14,067
        
Short-term investments956,546
 904,804
 51,742
 
        
Equity securities, at fair value850,283
 789,596
 4,798
 55,889
        
Derivative instruments (4)48,946
 
 48,946
 
        
Fair value option:       
Corporate bonds488,402
 
 487,470
 932
Non-U.S. government bonds50,465
 
 50,465
 
Mortgage backed securities11,947
 
 11,947
 
Municipal bonds377
 
 377
 
Commercial mortgage backed securities1,134
 
 1,134
 
Asset backed securities200,163
 
 200,163
 
U.S. government and government agencies1,962
 1,852
 110
 
Short-term investments377,014
 333,320
 43,694
 
Equity securities102,697
 43,962
 641
 58,094
Other investments1,418,273
 53,287
 1,296,169
 68,817
Other investments measured at net asset value (2)1,011,043
      
Total3,663,477
 432,421
 2,092,170
 127,843
        
Total assets measured at fair value$22,782,288
 $6,932,402
 $14,641,044
 $197,799
        
Liabilities measured at fair value:       
Contingent consideration liabilities$(7,998) $
 $
 $(7,998)
Securities sold but not yet purchased (3)(66,257) 
 (66,257) 
Derivative instruments (4)(39,750) 
 (39,750) 
Total liabilities measured at fair value$(114,005) $
 $(106,007) $(7,998)
   Fair Value Measurement Using:
 
Estimated
Fair Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Assets measured at fair value (1):       
Available for sale securities:       
Fixed maturities:       
Corporate bonds$5,537,548
 $
 $5,529,407
 $8,141
Mortgage backed securities541,193
 
 540,884
 309
Municipal bonds1,013,395
 
 1,013,395
 
Commercial mortgage backed securities729,442
 
 729,438
 4
U.S. government and government agencies3,758,698
 3,657,181
 101,517
 
Non-U.S. government securities1,771,338
 
 1,771,338
 
Asset backed securities1,600,896
 
 1,600,896
 
Total14,952,510
 3,657,181
 11,286,875
 8,454
        
Short-term investments955,880
 875,881
 79,999
 
        
Equity securities, at fair value353,794
 321,927
 31,867
 
        
Derivative instruments (4)73,893
 
 73,893
 
        
Fair value option:       
Corporate bonds852,585
 
 846,827
 5,758
Non-U.S. government bonds79,066
 
 79,066
 
Mortgage backed securities16,731
 
 16,731
 
Municipal bonds7,144
 
 7,144
 
Commercial mortgage backed securities
 
 
 
Asset backed securities178,790
 
 178,790
 
U.S. government and government agencies111,246
 111,138
 108
 
Short-term investments322,177
 278,579
 43,598
 
Equity securities103,893
 48,827
 55,066
 
Other investments1,254,220
 39,107
 1,152,408
 62,705
Other investments measured at net asset value (2)1,057,719
      
Total3,983,571
 477,651
 2,379,738
 68,463
        
Total assets measured at fair value$20,319,648
 $5,332,640
 $13,852,372
 $76,917
        
Liabilities measured at fair value:       
Contingent consideration liabilities$(66,665) $
 $
 $(66,665)
Securities sold but not yet purchased (3)(7,790) 
 (7,790) 
Derivative instruments (4)(20,664) 
 (20,664) 
Total liabilities measured at fair value$(95,119) $
 $(28,454) $(66,665)

(1)In securities lending transactions, the Company receives collateral in excess of the fair value of the securities pledged. For purposes of this table, the Company has excluded the collateral received under securities lending, at fair value and included the securities pledged under securities lending, at fair value. See Note 8.
(2)In accordance with applicable accounting guidance, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheets.
(3)Represents the Company’s obligations to deliver securities that it did not own at the time of sale. Such amounts are included in “other liabilities” on the Company’s consolidated balance sheets.
(4)See Note 10.




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The following table presents the Company’s financial assets and liabilities measured at fair value by level at December 31, 2017:2018:
  Fair Value Measurement Using:  Fair Value Measurement Using:
Estimated
Fair Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Estimated
Fair Value
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Other Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
Assets measured at fair value (1):              
Available for sale securities:              
Fixed maturities:              
Corporate bonds$4,434,439
 $
 $4,424,979
 $9,460
$5,537,548
 $
 $5,529,407
 $8,141
Mortgage backed securities316,141
 
 315,754
 387
541,193
 
 540,884
 309
Municipal bonds2,158,840
 
 2,158,840
 
1,013,395
 
 1,013,395
 
Commercial mortgage backed securities545,817
 
 545,277
 540
729,442
 
 729,438
 4
U.S. government and government agencies3,484,257
 3,408,902
 75,355
 
3,758,698
 3,657,181
 101,517
 
Non-U.S. government securities1,612,754
 
 1,612,754
 
1,771,338
 
 1,771,338
 
Asset backed securities1,780,143
 
 1,775,143
 5,000
1,600,896
 
 1,600,896
 
Total14,332,391
 3,408,902
 10,908,102
 15,387
14,952,510
 3,657,181
 11,286,875
 8,454
              
Equity securities504,333
 498,182
 6,151
 
353,794
 321,927
 31,867
 
              
Short-term investments1,469,042
 1,420,732
 48,310
 
955,880
 875,881
 79,999
 
       
Other investments76,427
 74,611
 1,816
 
Other investments measured at net asset value (2)188,562
      
Total other investments264,989
 74,611
 1,816
 
              
Derivative instruments (4)15,747
 
 15,747
 
73,893
 
 73,893
 
              
Fair value option:              
Corporate bonds1,068,725
 
 1,056,508
 12,217
852,585
 
 846,827
 5,758
Non-U.S. government bonds195,788
 
 195,788
 
79,066
 
 79,066
 
Mortgage backed securities20,491
 
 20,491
 
16,731
 
 16,731
 
Municipal bonds15,210
 
 15,210
 
7,144
 
 7,144
 
Commercial mortgage backed securities11,997
 
 11,997
 

 
 
 
Asset backed securities99,354
 
 99,354
 
178,790
 
 178,790
 
U.S. government and government agencies231,290
 231,019
 271
 
111,246
 111,138
 108
 
Short-term investments297,426
 40,166
 257,260
 
322,177
 278,579
 43,598
 
Equity securities139,575
 67,440
 72,135
 
103,893
 48,827
 55,066
 
Other investments1,128,094
 82,291
 986,636
 59,167
1,254,220
 39,107
 1,152,408
 62,705
Other investments measured at net asset value (2)1,008,287
      1,057,719
      
Total4,216,237
 420,916
 2,715,650
 71,384
3,983,571
 477,651
 2,379,738
 68,463
              
Total assets measured at fair value$20,802,739
 $5,823,343
 $13,695,776
 $86,771
$20,319,648
 $5,332,640
 $13,852,372
 $76,917
              
Liabilities measured at fair value:              
Contingent consideration liabilities$(60,996) $
 $
 $(60,996)$(66,665) $
 $
 $(66,665)
Securities sold but not yet purchased (3)(34,375) 
 (34,375) 
(7,790) 
 (7,790) 
Derivative instruments (4)(20,464) 
 (20,464) 
(20,664) 
 (20,664) 
Total liabilities measured at fair value$(115,835) $
 $(54,839) $(60,996)$(95,119) $
 $(28,454) $(66,665)
(1)In securities lending transactions, the Company receives collateral in excess of the fair value of the securities pledged. For purposes of this table, the Company has excluded the collateral received under securities lending, at fair value and included the securities pledged under securities lending, at fair value. See Note 8.
(2)In accordance with applicable accounting guidance, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated balance sheets.
(3)Represents the Company’s obligations to deliver securities that it did not own at the time of sale. Such amounts are included in “other liabilities” on the Company’s consolidated balance sheets.
(4)See Note 10.






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The following table presents a reconciliation of the beginning and ending balances for all financial assets and liabilities measured at fair value on a recurring basis using Level 3 inputs for 20182019 and 2017:2018:
   AssetsLiabilities
 Available For Sale Fair Value Option Fair Value  
 Structured Securities (1) Corporate Bonds Corporate Bonds Other Investments Equity Securities Equity Securities 
Contingent
Consideration
Liabilities
Year Ended December 31, 2019             
Balance at beginning of year$313
 $8,141
 $5,758
 $62,705
 $
 $
 $(66,665)
Total gains or (losses) (realized/unrealized)             
Included in earnings (2)1,760
 2
 (162) (8,119) 1,949
 (3,418) (1,478)
Included in other comprehensive income3
 (267) 
 
 
 
 
Purchases, issuances, sales and settlements             
Purchases
 881
 
 3,746
 
 36,077
 
Issuances
 
 
 
 
 
 (548)
Sales(1,757) 
 (28,583) (20,495) 
 (27,982) 
Settlements(552) (1,766) 
 (600) 
 
 60,693
Transfers in and/or out of Level 35,449
 1,860
 23,919
 31,580
 56,145
 51,212
 
Balance at end of year$5,216
 $8,851
 $932
 $68,817
 $58,094
 $55,889
 $(7,998)
              
Year Ended December 31, 2018             
Balance at beginning of year$5,927
 $9,460
 $12,217
 $59,167
 $
 $
 $(60,996)
Total gains or (losses) (realized/unrealized)             
Included in earnings (2)4
 (1) (334) (1,416) 
 
 (5,669)
Included in other comprehensive income(11) (296) 
 
 
 
 
Purchases, issuances, sales and settlements          

  
Purchases
 802
 
 6,250
 
 
 
Issuances
 
 
 
 
 
 
Sales(5,003) 
 
 (296) 
 
 
Settlements(604) (1,824) (6,125) (1,000) 
 
 
Transfers in and/or out of Level 3
 
 
 
 
 
 
Balance at end of year$313
 $8,141
 $5,758
 $62,705
 $
 $
 $(66,665)
   Assets Liabilities
 Available For Sale Fair Value Option    
 Structured Securities (1) Corporate Bonds Corporate Bonds Other Investments Total 
Contingent
Consideration
Liabilities
Year Ended December 31, 2018           
Balance at beginning of year$5,927
 $9,460
 $12,217
 $59,167
 $86,771
 $(60,996)
Total gains or (losses) (realized/unrealized)           
Included in earnings (2)4
 (1) (334) (1,416) (1,747) (5,669)
Included in other comprehensive income(11) (296) 
 
 (307) 
Purchases, issuances, sales and settlements           
Purchases
 802
 
 6,250
 7,052
 
Issuances
 
 
 
 
 
Sales(5,003) 
 
 (296) (5,299) 
Settlements(604) (1,824) (6,125) (1,000) (9,553) 
Transfers in and/or out of Level 3
 
 
 
 
 
Balance at end of year$313
 $8,141
 $5,758
 $62,705
 $76,917
 $(66,665)
            
Year Ended December 31, 2017           
Balance at beginning of year$11,289
 $18,344
 $
 $25,000
 $54,633
 $(122,350)
Total gains or (losses) (realized/unrealized)           
Included in earnings (2)3,779
 688
 1,021
 4
 5,492
 (10,837)
Included in other comprehensive income7
 713
 
 
 720
 
Purchases, issuances, sales and settlements           
Purchases
 4,935
 
 1,348
 6,283
 
Issuances
 
 
 
 
 
Sales(13,640) (14,897) 
 
 (28,537) 
Settlements(1,457) (455) (275) (901) (3,088) 72,191
Transfers in and/or out of Level 35,949
 132
 11,471
 33,716
 51,268
 
Balance at end of year$5,927
 $9,460
 $12,217
 $59,167
 $86,771
 $(60,996)

(1)Includes asset backed securities, mortgage backed securities and commercial mortgage backed securities.
(2)Gains or losses were included in net realized gains (losses).



Financial Instruments Disclosed, But Not Carried, At Fair Value
The Company uses various financial instruments in the normal course of its business. The carrying values of cash, accrued investment income, receivable for securities sold, certain other assets, payable for securities purchased and certain other liabilities approximated their fair values at December 31, 2018,2019, due to their respective short maturities. As these financial instruments are not actively traded, their respective fair values are classified within Level 2.
At December 31, 2019, the Company’s senior notes were carried at their cost, net of debt issuance costs, of $1.87 billion and had a fair value of $2.34 billion. At December 31, 2018, the Company’s senior notes were carried at their cost, net of debt issuance costs, of $1.73 billion and had a fair value of $1.88 billion. At December 31, 2017, the Company’s senior notes were carried at their cost, net of debt issuance costs, of $1.73 billion and had a fair value of $2.04 billion. The fair values of the senior notes were obtained from
a third party pricing service and are based on observable market inputs. As such, the fair value of the senior notes is classified within Level 2.
Fair Value Measurements on a Non-Recurring Basis
The Company measures the fair value of certain assets on a non-recurring basis, generally quarterly, annually, or when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. These assets include investments accounted for using the equity method, certain other investments, goodwill and intangible assets, and long-lived assets. The Company uses a variety of techniques to measure the fair value of these assets when appropriate, as described below:
Investments accounted for using the equity method. When the Company determines that the carrying value of these assets may


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not be recoverable, the Company records the assets at fair value with the loss recognized in income. In such cases, the Company measures the fair value of these assets using the techniques discussed above in “—Fair Value Measurements on a Recurring Basis.”


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Goodwill and Intangible Assets. The Company tests goodwill and intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount may not be recoverable. When the Company determines goodwill and intangible assets may be impaired, the Company uses techniques including discounted expected future cash flows, to measure fair value.
Long-Lived Assets. The Company tests its long-lived assets for impairment whenever events or changes in circumstances indicate the carrying amount of a long-lived asset may not be recoverable.
10.    Derivative Instruments
The Company’s investment strategy allows for the use of derivative instruments. The Company’s derivative instruments are recorded on its consolidated balance sheets at fair value. The Company utilizes exchange traded U.S. Treasury note, Eurodollar and other futures contracts and commodity futures to manage portfolio duration or replicate investment positions in its portfolios and the Company routinely utilizes foreign currency forward contracts, currency options, index futures contracts and other derivatives as part of its total return objective. In addition, certain of the Company’s investments are managed in portfolios which incorporate the use of foreign currency forward contracts which are intended to provide an economic hedge against foreign currency movements.
In addition, the Company purchases to-be-announced mortgage backed securities (“TBAs”) as part of its investment strategy. TBAs represent commitments to purchase a future issuance of agency mortgage backed securities. For the period between purchase of a TBA and issuance of the underlying security, the Company’s position is accounted for as a derivative. The Company purchases TBAs in both long and short positions to enhance investment performance and as part of its overall investment strategy.
 
The following table summarizes information on the fair values and notional values of the Company’s derivative instruments:
 Estimated Fair Value  
 Asset
Derivatives
 Liability Derivatives 
Notional
Value (1)
December 31, 2019 
  
  
Futures contracts (2)$10,065
 $(13,722) $4,104,559
Foreign currency forward contracts (2)5,352
 (5,327) 686,878
TBAs (3)55,010
 
 53,229
Other (2)33,529
 (20,701) 4,356,300
Total$103,956
 $(39,750)  
      
December 31, 2018 
  
  
Futures contracts (2)$51,800
 $(2,115) $3,153,518
Foreign currency forward contracts (2)8,147
 (7,796) 1,008,907
TBAs (3)8,292
 
 8,132
Other (2)13,946
 (10,753) 2,213,981
Total$82,185
 $(20,664)  
 Estimated Fair Value  
 Asset
Derivatives
 Liability Derivatives 
Notional
Value (1)
December 31, 2018 
  
  
Futures contracts (2)$51,800
 $(2,115) $3,153,518
Foreign currency forward contracts (2)8,147
 (7,796) 1,008,907
TBAs (3)8,292
 
 8,132
Other (2)13,946
 (10,753) 2,213,981
Total$82,185
 $(20,664)  
      
December 31, 2017 
  
  
Futures contracts (2)$3,371
 $(1,542) $1,452,497
Foreign currency forward contracts (2)4,478
 (4,381) 686,941
TBAs (3)27,184
 
 27,066
Other (2)7,898
 (14,541) 1,457,345
Total$42,931
 $(20,464)  

(1)Represents the absolute notional value of all outstanding contracts, consisting of long and short positions.
(2)The fair value of asset derivatives are included in ‘other assets’ and the fair value of liability derivatives are included in ‘other liabilities.’ Such amounts include risk in force on GSE credit-risk sharing transactions that are accounted for as derivatives.
(3)The fair value of TBAs are included in ‘fixed maturities available for sale, at fair value.’
The Company did not hold any derivatives which were designated as hedging instruments at December 31, 20182019 or 2017.2018.
The Company’s derivative instruments can be traded under master netting agreements, which establish terms that apply to all derivative transactions with a counterparty. In the event of a bankruptcy or other stipulated event of default, such agreements provide that the non-defaulting party may elect to terminate all outstanding derivative transactions, in which case all individual derivative positions (loss or gain) with a counterparty are closed out and netted and replaced with a single amount, usually referred to as the termination amount, which is expressed in a single currency. The resulting single net amount, where positive, is payable to the party “in-the-money” regardless of whether or not it is the defaulting party, unless the parties have agreed that only the non-defaulting party is entitled to receive a termination payment where the net amount is positive and is in its favor. Effectively, contractual close-out netting reduces the derivatives credit exposure from a gross to a net exposure. At December 31, 2018, $80.42019, $97.8 million and $18.9$37.8 million, respectively, of asset derivatives and liability derivatives were subject to a master netting agreement compared to $40.6$80.4 million and $19.6$18.9 million, respectively, at December 31, 2017.2018. The remaining derivatives




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included in the table above were not subject to a master netting agreement.
All realized and unrealized contract gains and losses on the Company’s derivative instruments are reflected in net realized gains (losses) in the consolidated statements of income, as summarized in the following table:
Derivatives not designated as hedging instruments Year Ended December 31,
 2019 2018 2017
Net realized gains (losses):      
Futures contracts $114,123
 $48,443
 $9,318
Foreign currency forward contracts (9,499) (21,770) (14,495)
TBAs 463
 (133) 9
Other 14,654
 (10,904) (2,188)
Total $119,741
 $15,636
 $(7,356)

Derivatives not designated as hedging instruments Year Ended December 31,
 2018 2017 2016
Net realized gains (losses):      
Futures contracts $48,443
 $9,318
 $(5,474)
Foreign currency forward contracts (21,770) (14,495) (9,588)
TBAs (133) 9
 577
Other (10,904) (2,188) (8,127)
Total $15,636
 $(7,356) $(22,612)


11. Variable Interest Entity and Noncontrolling Interests

Watford Holdings Ltd.
In March 2014, Watford Re raised approximately $1.1 billion of capital consisting of $907.3 million in common equity ($895.6 million net of issuance costs) and $226.6 million in preference equity ($219.2 million net of issuance costs and discount). The Company invested $100.0 million and acquired 2,500,000 common shares, approximately 11% of Watford Holdings Ltd.’s common equity, and a warrant to purchase up to 975,503 additional common shares. The warrants expire on March 31, 2020, and are exercisable at any time following the listing of the common shares on a U.S. national securities exchange.time. The exercise price of the warrants is determined on the date of exercise based on certain targeted returns for existing common shareholders. Watford’s common shares are listed on the Nasdaq Select Global Market under the ticker symbol “WTRE”. As of December 31, 2018,2019, the exercise price was $77.94 per share.Company owns approximately 13% of Watford’s outstanding common equity.
Subsidiaries of the Company act as Watford Re’sWatford’s reinsurance and insurance underwriting managers.
HPS Investment Partners, LLC (“HPS”) manages Watford Re’sWatford’s non-investment grade credit portfolios, and the Company manages Watford Re’sWatford’s investment grade portfolios, each under separate long term services agreements. John Rathgeber, previously Vice Chairman of Arch Worldwide Reinsurance Group, is CEO of Watford Re.Watford. In addition, Maamoun Rajeh and Nicolas Papadopoulo, both officers of the Company, serve on the board of directors of Watford Re.Watford.
The Company concluded that Watford Re is a VIE and that the Company is the primary beneficiary. The Company includes the results of Watford Re in its consolidated financial
statements. The Company concluded that Watford Re should be reflected in a separate operating segment (‘other’) and provides the income
statement and total investable assets, total assets and total liabilities of Watford Re within Note 4.
Because Watford Re is an independent company, the assets of Watford Re can be used only to settle obligations of Watford Re and Watford Re is solely responsible for its own liabilities and commitments. The Company’s financial exposure to Watford Re is limited to its investment in Watford Re’sWatford’s senior notes, common shares and preferred shares and counterparty credit risk (mitigated by collateral) arising from the reinsurance transactions.
The following table provides the carrying amount and balance sheet caption in which the assets and liabilities of Watford Re are reported:
 December 31,
 2019
2018
Assets   
Investments accounted for using the fair value option$1,898,091
 $2,312,003
Fixed maturities available for sale, at fair value745,708
 393,351
Equity securities, at fair value65,338
 32,206
Cash102,437
 63,529
Accrued investment income14,025
 19,461
Premiums receivable273,657
 227,301
Reinsurance recoverable on unpaid and paid losses and LAE170,973
 86,445
Ceded unearned premiums132,577
 61,587
Deferred acquisition costs, net64,044
 80,858
Receivable for securities sold16,287
 24,507
Goodwill and intangible assets7,650
 7,650
Other assets60,070
 63,959
Total assets of consolidated VIE$3,550,857
 $3,372,857
    
Liabilities   
Reserves for losses and loss adjustment expenses$1,263,628
 $1,032,760
Unearned premiums438,907
 390,114
Reinsurance balances payable77,066
 21,034
Revolving credit agreement borrowings484,287
 455,682
Senior notes172,418
 
Payable for securities purchased18,180
 60,142
Other liabilities171,714
 302,524
Total liabilities of consolidated VIE$2,626,200
 $2,262,256
    
Redeemable noncontrolling interests$52,305
 $220,992
 December 31,
 2018
2017
Assets   
Investments accounted for using the fair value option$2,312,003
 $2,426,066
Fixed maturities available for sale, at fair value393,351
 
Equity securities, at fair value32,206
 
Cash63,529
 54,503
Accrued investment income19,461
 18,261
Premiums receivable227,301
 177,492
Reinsurance recoverable on unpaid and paid losses and LAE86,445
 42,777
Ceded unearned premiums61,587
 24,762
Deferred acquisition costs, net80,858
 85,961
Receivable for securities sold24,507
 36,374
Goodwill and intangible assets7,650
 7,650
Other assets63,959
 140,808
Total assets of consolidated VIE$3,372,857
 $3,014,654
    
Liabilities   
Reserves for losses and loss adjustment expenses$1,032,760
 $798,262
Unearned premiums390,114
 330,644
Reinsurance balances payable21,034
 18,424
Revolving credit agreement borrowings455,682
 441,132
Payable for securities purchased60,142
 42,501
Other liabilities302,524
 215,186
Total liabilities of consolidated VIE$2,262,256
 $1,846,149
    
Redeemable noncontrolling interests$220,992
 $220,622

The following table summarizes Watford Re’sWatford’s cash flow from operating, investing and financing activities.
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Total cash provided by (used for):          
Operating activities229,315
 286,558
 275,175
239,284
 229,315
 286,558
Investing activities(285,281) (467,418) (105,695)(140,620) (285,281) (467,418)
Financing activities(2,406) 162,152
 (195,647)(61,433) (2,406) 162,152





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Non-redeemable noncontrolling interests
The Company accounts for the portion of Watford Re’sWatford’s common equity attributable to third party investors in the shareholders’ equity section of its consolidated balance sheets. The noncontrolling ownership in Watford Re’sWatford’s senior notes, common shares was approximately 89%87% at December 31, 2018.2019. The portion of Watford Re’sWatford’s income or loss attributable to third party investors is recorded in the consolidated statements of income in ‘net (income) loss attributable to noncontrolling interests.’
The following table sets forth activity in the non-redeemable noncontrolling interests:
 December 31,
 2019
2018
Balance, beginning of year$791,560
 $843,411
Additional paid in capital attributable to non-redeemable noncontrolling interests(2,929) 
Repurchases attributable to non-redeemable noncontrolling interests (1)(75,056) 
Amounts attributable to non-redeemable noncontrolling interests40,072
 (48,507)
Other comprehensive (income) loss attributable to non-redeemable noncontrolling interests9,130
 (3,344)
Balance, end of year$762,777
 $791,560

 December 31,
 2018
2017
Balance, beginning of year$843,411
 $851,854
Amounts attributable to noncontrolling interests(48,507) (7,913)
Other comprehensive (income) loss attributable to noncontrolling interests(3,344) (530)
Balance, end of year$791,560
 $843,411
(1) During 2019, Watford’s board of directors authorized the investment in Watford’s common shares through a share repurchase program.
Redeemable noncontrolling interests
The Company accounts for redeemable noncontrolling interests in the mezzanine section of its consolidated balance sheet.sheets in accordance with applicable accounting guidance. Such redeemable noncontrolling interests primarily relate to the 9,065,200 cumulative redeemable preference shares (“Watford Preference Shares”)Shares issued in late March 2014 with a par value of $0.01 per share and a liquidation preference of $25.00 per share. The Watford Preference Shares were issued at a discounted amount of $24.50 per share. Holders of the Watford Preference Shares will be entitled to receive, if declared by Watford Re’sWatford’s board, quarterly cash dividends on the last day of March, June, September, and December. Dividends will accrueaccrued from the closing date to June 30, 2019 at a fixed rate of 8.5% per annum. From June 30, 2019 and subsequent, dividends will accrue based on a floating rate equal to the 3 month U.S. dollar LIBOR (with a 1% floor) plus a margin based on the difference between the fixed rate and the 5 year mid swap rate to the floating rate as set out onrate. Preferred dividends, including the Bloomberg Screen IRSB 18. The Watford Preference Shares may be redeemed by Watford Re on or after June 30, 2019 or at the optionaccretion of the preferred shareholders at any time on or after June 30, 2034.discount and issuance costs, are included in ‘net (income) loss attributable to noncontrolling interests’ in the Company’s consolidated statements of income. Because the redemption features are not solely within the control of Watford, Re, the Company accounts for the redeemable noncontrolling interests in the Watford Preference Shares in the mezzanine section of its consolidated balance sheets.

On August 1, 2019, Watford redeemed 6,919,998 of its 9,065,200 issued and outstanding preference shares (“Watford Preference Shares”) at a total redemption price of $25.19748 per share, inclusive of all declared and unpaid dividends. The Company received $11.5 million pursuant to the redemption of Watford Preference Shares.
Preferred dividends on the Watford Preference Shares, including the accretion of the discount and issuance costs, was $17.8 million for 2019, compared to $19.6 million for 2018 2017 and 2016. Preferred dividends, including the accretion of the discount and issuance costs, are included in ‘amounts attributable to noncontrolling interests’ in the Company’s consolidated statements of income.2017.
The following table sets forth activity in the redeemable non-controllingnoncontrolling interests:
 December 31,
 2019
2018 2017
Balance, beginning of year$206,292
 $205,922
 $205,553
Redemption of redeemable noncontrolling interests(157,709) 
 
Accretion of preference share issuance costs244
 370
 369
Other6,577
 
 
Balance, end of year$55,404
 $206,292
 $205,922
 December 31,
 2018
2017 2016
Balance, beginning of year$205,922
 $205,553
 $205,182
Accretion of preference share issuance costs370
 369
 371
Balance, end of year$206,292
 $205,922
 $205,553


The portion of Watford Re’s income or loss attributable to third party investors is recorded in the consolidated statements of income in ‘net (income) loss attributable to noncontrolling interests’ as summarized in the table below:
 December 31,
 2019 2018 2017
Amounts attributable to non-redeemable noncontrolling interests$(40,072) $48,507
 $7,913
Dividends attributable to redeemable noncontrolling interests(16,909) (18,357) (18,344)
Net (income) loss attributable to noncontrolling interests$(56,981) $30,150
 $(10,431)
 December 31,
 2018 2017 2016
Amounts attributable to non-redeemable noncontrolling interests$48,507
 $7,913
 $(113,091)
Dividends attributable to redeemable noncontrolling interests(18,357) (18,344) (18,349)
Net (income) loss attributable to noncontrolling interests$30,150
 $(10,431) $(131,440)

Bellemeade Re
The Company has entered into various aggregate excess of loss mortgage reinsurance agreements with various special purpose reinsurance companies domiciled in Bermuda (the Bellemeade Agreements). At the time the Bellemeade Agreements were entered into, the applicability of the accounting guidance that addresses VIEs was evaluated. As a result of the evaluation of the Bellemeade Agreements, the Company concluded that these entities are VIEs. However, given that the ceding insurers do not have the unilateral power to direct those activities that are significant to their economic performance, the Company does not consolidate such entities in its consolidated financial statements.




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The following table presents the total assets of the Bellemeade entities, as well as the Company’s maximum exposure to loss associated with these VIEs, calculated as the maximum historical observable spread between the one month LIBOR, the basis for the contractual payments to bond holders, and the value of the underlying notional amount of VIE assets or liabilities.short term invested trust asset yields.
   Maximum Exposure to Loss
 Total VIE Assets 
On-Balance Sheet
(Asset)
Liabilities
 Off-Balance Sheet Total
December 31, 2019       
Bellemeade 2017-1 Ltd. (Oct-17)$216,429
 $(442) $2,794
 $2,352
Bellemeade 2018-1 Ltd. (Apr-18)328,482
 (1,574) 5,757
 4,183
Bellemeade 2018-2 Ltd. (Aug-18)437,009
 (877) 2,524
 1,647
Bellemeade 2018-3 Ltd. (Oct-18)426,806
 (1,113) 3,937
 2,824
Bellemeade 2019-1 Ltd. (Mar-19)257,358
 (226) 3,027
 2,801
Bellemeade 2019-2 Ltd. (Apr-19)525,959
 (78) 2,579
 2,501
Bellemeade 2019-3 Ltd. (Jul-19)656,523
 (585) 9,273
 8,688
Bellemeade 2019-4 Ltd. (Oct-19)577,267
 (302) 12,193
 11,891
Total$3,425,833
 $(5,197) $42,084
 $36,887
        
December 31, 2018       
Bellemeade 2015-1 Ltd. (Jul-15)$43,246
 $112
 $498
 $610
Bellemeade 2017-1 Ltd. (Oct-17)304,373
 165
 1,312
 1,477
Bellemeade 2018-1 Ltd. (Apr-18)374,460
 132
 3,539
 3,671
Bellemeade 2018-2 Ltd. (Aug-18)653,278
 874
 4,005
 4,879
Bellemeade 2018-3 Ltd. (Oct-18)506,110
 469
 1,836
 2,305
Total$1,881,467
 $1,752
 $11,190
 $12,942

   Maximum Exposure to Loss
 Total VIE Assets On-Balance Sheet Off-Balance Sheet Total
December 31, 2018      
Bellemeade 2015-1 Ltd. (Jul-15)$43,246
 $112
 $498
 $610
Bellemeade 2017-1 Ltd. (Oct-17)304,373
 165
 1,312
 1,477
Bellemeade 2018-1 Ltd. (Apr-18)374,460
 132
 3,539
 3,671
Bellemeade 2018-2 Ltd. (Aug-18)653,278
 874
 4,005
 4,879
Bellemeade 2018-3 Ltd. (Oct-18)506,110
 469
 1,836
 2,305
Total$1,881,467
 $1,752
 $11,190
 $12,942
        
December 31, 2017      
Bellemeade 2015-1 Ltd. (Jul-15)92,390
 471
 832
 1,303
Bellemeade 2016-1 Ltd. (May-16)135,201
 20
 527
 547
Bellemeade 2017-1 Ltd. (Oct-17)347,139
 391
 1,867
 2,258
Total$574,730
 $882
 $3,226
 $4,108




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12.     Other Comprehensive Income (Loss)

The following table presents the changes in each component of AOCI, net of noncontrolling interests:
 Unrealized Appreciation on Available-For-Sale Investments Foreign Currency Translation Adjustments Total
Year Ended December 31, 2019     
Beginning balance$(114,178) $(64,542) $(178,720)
Other comprehensive income (loss) before reclassifications491,605
 18,147
 509,752
Amounts reclassified from accumulated other comprehensive income(118,941) 
 (118,941)
Net current period other comprehensive income (loss)372,664
 18,147
 390,811
Ending balance$258,486
 $(46,395) $212,091
      
Year Ended December 31, 2018     
Beginning balance$157,400
 $(39,356) $118,044
Cumulative effect of an accounting change(149,794) 
 (149,794)
Other comprehensive income (loss) before reclassifications(266,357) (25,186) (291,543)
Amounts reclassified from accumulated other comprehensive income144,573
 
 144,573
Net current period other comprehensive income (loss)(121,784) (25,186) (146,970)
Ending balance$(114,178) $(64,542) $(178,720)
      
Year Ended December 31, 2017     
Beginning balance$(27,641) $(86,900) $(114,541)
Other comprehensive income (loss) before reclassifications252,904
 47,544
 300,448
Amounts reclassified from accumulated other comprehensive income(67,863) 
 (67,863)
Net current period other comprehensive income (loss)185,041
 47,544
 232,585
Ending balance$157,400
 $(39,356) $118,044
 Unrealized Appreciation on Available-For-Sale Investments Foreign Currency Translation Adjustments Total
Year Ended December 31, 2018     
Beginning balance$157,400
 $(39,356) $118,044
Cumulative effect of an accounting change(149,794) 
 (149,794)
Other comprehensive income (loss) before reclassifications(266,357) (25,186) (291,543)
Amounts reclassified from accumulated other comprehensive income144,573
 
 144,573
Net current period other comprehensive income (loss)(121,784) (25,186) (146,970)
Ending balance$(114,178) $(64,542) $(178,720)
      
Year Ended December 31, 2017     
Beginning balance$(27,641) $(86,900) $(114,541)
Other comprehensive income (loss) before reclassifications252,904
 47,544
 300,448
Amounts reclassified from accumulated other comprehensive income(67,863) 
 (67,863)
Net current period other comprehensive income (loss)185,041
 47,544
 232,585
Ending balance$157,400
 $(39,356) $118,044
      
Year Ended December 31, 2016     
Beginning balance$50,085
 $(66,587) $(16,502)
Other comprehensive income (loss) before reclassifications(21,365) (20,313) (41,678)
Amounts reclassified from accumulated other comprehensive income(56,361) 
 (56,361)
Net current period other comprehensive income (loss)(77,726) (20,313) (98,039)
Ending balance$(27,641) $(86,900) $(114,541)

The following tables present details about amounts reclassified from accumulated other comprehensive income and the tax effects allocated to each component of other comprehensive income (loss):
  Consolidated Statement of Income Amounts Reclassified from AOCI
Details About Line Item That Includes Year Ended December 31,
 AOCI Components Reclassification 2019 2018 2017
Unrealized appreciation on available-for-sale investments      
  Net realized gains (losses) $131,043
 $(153,822) $82,542
  Other-than-temporary impairment losses (3,165) (2,829) (7,138)
  Total before tax 127,878
 (156,651) 75,404
  Income tax (expense) benefit (8,937) 12,078
 (7,541)
  Net of tax $118,941
 $(144,573) $67,863

  Consolidated Statement of Income Amounts Reclassified from AOCI
Details About Line Item That Includes Year Ended December 31,
 AOCI Components Reclassification 2018 2017 2016
Unrealized appreciation on available-for-sale investments      
  Net realized gains $(153,822) $82,542
 $95,448
  Other-than-temporary impairment losses (2,829) (7,138) (30,794)
  Total before tax (156,651) 75,404
 64,654
  Income tax (expense) benefit 12,078
 (7,541) (8,293)
  Net of tax $(144,573) $67,863
 $56,361





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Following are the related tax effects allocated to each component of other comprehensive income (loss):
 Before Tax Tax Expense Net of Tax
 Amount (Benefit) Amount
Year Ended December 31, 2019     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$562,576
 $61,805
 $500,771
Less reclassification of net realized gains (losses) included in net income127,878
 8,937
 118,941
Foreign currency translation adjustments18,463
 353
 18,110
Other comprehensive income (loss)$453,161
 $53,221
 $399,940
      
Year Ended December 31, 2018     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$(294,267) $(24,210) $(270,057)
Less reclassification of net realized gains (losses) included in net income(156,651) (12,078) (144,573)
Foreign currency translation adjustments(25,006) (176) (24,830)
Other comprehensive income (loss)$(162,622) $(12,308) $(150,314)
      
Year Ended December 31, 2017     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$266,559
 $13,655
 $252,904
Less reclassification of net realized gains (losses) included in net income75,404
 7,541
 67,863
Foreign currency translation adjustments47,549
 535
 47,014
Other comprehensive income (loss)$238,704
 $6,649
 $232,055

 Before Tax Tax Expense Net of Tax
 Amount (Benefit) Amount
Year Ended December 31, 2018     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$(294,267) $(24,210) $(270,057)
Portion of other-than-temporary impairment losses recognized in other comprehensive income (loss)
 
 
Less reclassification of net realized gains (losses) included in net income(156,651) (12,078) (144,573)
Foreign currency translation adjustments(25,006) (176) (24,830)
Other comprehensive income (loss)$(162,622) $(12,308) $(150,314)
      
Year Ended December 31, 2017     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$266,559
 $13,655
 $252,904
Portion of other-than-temporary impairment losses recognized in other comprehensive income (loss)
 
 
Less reclassification of net realized gains (losses) included in net income75,404
 7,541
 67,863
Foreign currency translation adjustments47,549
 535
 47,014
Other comprehensive income (loss)$238,704
 $6,649
 $232,055
      
Year Ended December 31, 2016     
Unrealized appreciation (decline) in value of investments:     
Unrealized holding gains (losses) arising during period$(26,159) $(5,146) $(21,013)
Portion of other-than-temporary impairment losses recognized in other comprehensive income (loss)(352) 
 (352)
Less reclassification of net realized gains (losses) included in net income64,654
 8,293
 56,361
Foreign currency translation adjustments(20,120) 261
 (20,381)
Other comprehensive income (loss)$(111,285) $(13,178) $(98,107)






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13.    Earnings Per Common Share
The calculation of basic earnings per common share is computed by dividing income available to Arch common shareholders by the weighted average number of Common Shares and common share equivalents outstanding. The following table sets forth the computation of basic and diluted earnings per common share:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Numerator:          
Net income$727,821
 $629,709
 $824,178
$1,693,300
 $727,821
 $629,709
Amounts attributable to noncontrolling interests30,150
 (10,431) (131,440)(56,981) 30,150
 (10,431)
Net income available to Arch757,971
 619,278
 692,738
1,636,319
 757,971
 619,278
Preferred dividends(41,645) (46,041) (28,070)(41,612) (41,645) (46,041)
Loss on redemption of preferred shares(2,710) (6,735) 

 (2,710) (6,735)
Net income available to Arch common shareholders$713,616
 $566,502
 $664,668
$1,594,707
 $713,616
 $566,502
          
Denominator:          
Weighted average common shares outstanding401,036,376
 377,531,628
 362,271,729
401,802,815
 401,036,376
 377,531,628
Series D preferred securities (1)3,311,245
 26,606,736
 104,613

 3,311,245
 26,606,736
Weighted average common shares outstanding – basic404,347,621
 404,138,364
 362,376,342
401,802,815
 404,347,621
 404,138,364
Effect of dilutive common share equivalents:          
Nonvested restricted shares1,474,207
 3,936,594
 3,877,077
1,673,770
 1,474,207
 3,936,594
Stock options (2)7,084,650
 9,710,067
 7,899,060
8,132,893
 7,084,650
 9,710,067
Weighted average common shares and common share equivalents outstanding – diluted412,906,478
 417,785,025
 374,152,479
411,609,478
 412,906,478
 417,785,025
          
Earnings per common share:          
Basic$1.76
 $1.40
 $1.83
$3.97
 $1.76
 $1.40
Diluted$1.73
 $1.36
 $1.78
$3.87
 $1.73
 $1.36
(1)The company has determined that, based on a review of the terms, features and rights of the Company’s non-voting common equivalent preferred shares compared to the rights of the Company’s common shareholders, the underlying common shares that the convertible securities convert to were common share equivalents at the time of their issuance.
(2)Certain stock options were not included in the computation of diluted earnings per share where the exercise price of the stock options exceeded the average market price and would have been anti-dilutive or where, when applying the treasury stock method to in-the-money options, the sum of the proceeds, including unrecognized compensation, exceeded the average market price and would have been anti-dilutive. For 2019, 2018 2017 and 2016,2017, the number of stock options excluded were 1,302,017, 5,673,821 2,603,451 and 2,168,187,2,603,451, respectively.
14.     Income Taxes
Arch Capital is incorporated under the laws of Bermuda and, under current Bermuda law, is not obligated to pay any taxes in Bermuda based upon income or capital gains. The Company has received a written undertaking from the Minister of Finance in Bermuda under the Exempted Undertakings Tax Protection Act 1966 that, in the event that any legislation is enacted in Bermuda imposing any tax computed on profits, income, gain or appreciation on any capital asset, or any tax in the nature of estate duty or inheritance tax, such tax will not be applicable to Arch Capital or any of its operations until March 31, 2035. This undertaking does not, however, prevent the imposition of taxes on any person ordinarily resident in Bermuda or any company in respect of its ownership of real property or leasehold interests in Bermuda.
Arch Capital and its non-U.S. subsidiaries will be subject to U.S. federal income tax only to the extent that they derive U.S.
 
source income that is subject to U.S. withholding tax or income that is effectively connected with the conduct of a trade or business within the U.S. and is not exempt from U.S. tax under an applicable income tax treaty with the U.S. Arch Capital and its non-U.S. subsidiaries will be subject to a withholding tax on dividends from U.S. investments and interest from certain U.S. payors (subject to reduction by any applicable income tax treaty). Arch Capital and its non-U.S. subsidiaries intend to conduct their operations in a manner that will not cause them to be treated as engaged in a trade or business in the United States and, therefore, will not be required to pay U.S. federal income taxes (other than U.S. excise taxes on insurance and reinsurance premium and withholding taxes on dividends and certain other U.S. source investment income). However, because there is uncertainty as to the activities which constitute being engaged in a trade or business within the United States, there can be no assurances that the U.S. Internal Revenue Service will not contend successfully that Arch Capital or its non-U.S. subsidiaries are engaged in a trade or business in the United States. If Arch Capital or any of its non-U.S. subsidiaries




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were subject to U.S. income tax, Arch Capital’s shareholders’ equity and earnings could be materially adversely affected. Arch Capital has subsidiaries and branches that operate in various jurisdictions around the world that are subject to tax in the jurisdictions in which they operate. The significant jurisdictions in which Arch Capital’s subsidiaries and branches are subject to tax are the United States, United Kingdom, Ireland, Canada, Switzerland, Australia and Denmark.
The components of income taxes attributable to operations were as follows:
 Year Ended December 31,
 2019 2018 2017
Current expense (benefit):     
United States$139,407
 $73,078
 $(51,705)
Non-U.S.4,954
 12,785
 5,969
 144,361
 85,863
 (45,736)
Deferred expense (benefit):     
United States11,849
 19,544
 169,093
Non-U.S.(400) 8,544
 4,211
 11,449
 28,088
 173,304
Income tax expense$155,810
 $113,951
 $127,568
 Year Ended December 31,
 2018 2017 2016
Current expense (benefit):     
United States$73,078
 $(51,705) $40,300
Non-U.S.12,785
 5,969
 10,445
 85,863
 (45,736) 50,745
Deferred expense (benefit):     
United States19,544
 169,093
 (14,641)
Non-U.S.8,544
 4,211
 (4,730)
 28,088
 173,304
 (19,371)
Income tax expense$113,951
 $127,568
 $31,374

The Company’s income or loss before income taxes was earned in the following jurisdictions:
 Year Ended December 31,
 2019 2018 2017
Income (Loss) Before Income Taxes:  
Bermuda$1,122,952
 $388,492
 $406,054
United States701,480
 440,823
 381,157
Other24,678
 12,457
 (29,934)
Total$1,849,110
 $841,772
 $757,277
 Year Ended December 31,
 2018 2017 2016
Income (loss) Before Income Taxes:  
Bermuda$388,492
 $406,054
 $801,155
United States440,823
 381,157
 51,577
Other12,457
 (29,934) 2,820
Total$841,772
 $757,277
 $855,552

The expected tax provision computed on pre-tax income or loss at the weighted average tax rate has been calculated as the sum of the pre-tax income in each jurisdiction multiplied by that jurisdiction’s applicable statutory tax rate. The 20182019 applicable statutory tax rates by jurisdiction were as follows: Bermuda (0.0%), United States (21.0%), United Kingdom (19.0%), Ireland (12.5%), Denmark (22.0%), Canada (26.5%), Gibraltar (10.0%), Australia (30.0%), Hong Kong (16.5%) and the Netherlands (20.0%(19.0%). The United States rate was 35% in 2017 and 2016.2017.
 
A reconciliation of the difference between the provision for income taxes and the expected tax provision at the weighted average tax rate follows:
 Year Ended December 31,
 2019 2018 2017
Expected income tax expense (benefit) computed on pre-tax income
at weighted average income tax rate
$149,799
 $91,529
 $126,262
Addition (reduction) in income tax expense (benefit) resulting from:     
Tax-exempt investment income(3,091) (4,790) (13,330)
Meals and entertainment1,134
 1,060
 1,063
State taxes, net of U.S. federal tax benefit3,314
 2,086
 732
Foreign branch taxes1,231
 5,428
 5,752
Prior year adjustment632
 (2,522) (559)
Foreign exchange gains & losses436
 1,293
 (572)
Changes in applicable tax rate
 (128) 7,745
Dividend withholding taxes6,510
 6,594
 232
Change in valuation allowance1,628
 18,396
 14,798
Contingent consideration190
 740
 3,785
Share based compensation(6,592) (5,356) (18,733)
Other619
 (379) 393
Income tax expense (benefit)$155,810
 $113,951
 $127,568
 Year Ended December 31,
 2018 2017 2016
Expected income tax expense (benefit) computed on pre-tax income
at weighted average income tax rate
$91,529
 $126,262
 $17,365
Addition (reduction) in income tax expense (benefit) resulting from:     
Tax-exempt investment income(4,790) (13,330) (8,830)
Meals and entertainment1,060
 1,063
 954
State taxes, net of U.S. federal tax benefit2,086
 732
 1,073
Foreign branch taxes5,428
 5,752
 5,496
Prior year adjustment(2,522) (559) (4,756)
Foreign exchange gains & losses1,293
 (572) 223
Changes in applicable tax rate(128) 7,745
 1,209
Dividend withholding taxes6,594
 232
 3,319
Change in valuation allowance18,396
 14,798
 4,730
Contingent consideration740
 3,785
 9,353
Share based compensation(5,356) (18,733) 
Other(379) 393
 1,238
Income tax expense (benefit)$113,951
 $127,568
 $31,374

The effect of a change in tax laws or rates on deferred taxes assets and liabilities is recognized in income in the period in which such change is enacted.
On December 22, 2017, the Tax Cuts Act was signed into law by the President of the United States which significantly changeschanged the U.S. tax lawlaws in many wayways including a reduction of the U.S. federal income tax rate from 35% to 21% effective January 1, 2018. Also on December 22, 2017, the Securities and Exchange Commission issued Staff Accounting Bulletin No. 118 (“SAB 118”) which providesprovided guidance on accounting for tax effects of the Tax Cuts Act. SAB 118 provided a measurement period of up to one year from the enactment date to complete the accounting. During 2018, the Company finalized its accounting for the income tax impact of the Tax Cuts Act resulting in a tax expense of $1.2 million, primarily attributable to the write down of temporary differences identified following the filing of the Company’s 2017 corporate tax return offset by AMT credits that arewere currently recoverable.




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Deferred income tax assets and liabilities reflect temporary differences based on enacted tax rates between the carrying amounts of assets and liabilities for financial reporting and income tax purposes. Significant components of the Company’s deferred income tax assets and liabilities were as follows:
 December 31,
 2019 2018
Deferred income tax assets:   
Net operating loss$30,836
 $24,089
Uncrystallized losses

1,565
 7,960
AMT credit carryforward1,323
 2,652
Discounting of net loss reserves52,582
 43,130
Net unearned premium reserve64,269
 68,305
Compensation liabilities21,693
 20,492
Foreign tax credit carryforward9,521
 9,116
Interest expense
 1,387
Goodwill and intangible assets11,644
 17,127
Bad debt reserves5,983
 5,626
Lease liability26,438
 
Net unrealized foreign exchange losses598
 949
Net unrealized decline of investments
 13,453
Other, net206
 3,418
Deferred tax assets before valuation allowance226,658
 217,704
Valuation allowance(48,219) (44,659)
Deferred tax assets net of valuation allowance178,439
 173,045
Deferred income tax liabilities:   
Depreciation and amortization(1,215) (2,559)
Deposit accounting liability(2,169) (2,292)
Contingency reserve(132,831) (112,852)
Deferred policy acquisition costs(29,847) (32,105)
Net unrealized appreciation of investments(38,764) 
Right-of-use asset(23,416) 
Other, net(3,680) (735)
Total deferred tax liabilities(231,922) (150,543)
Net deferred income tax assets (liabilities)$(53,483) $22,502
 December 31,
 2018 2017
Deferred income tax assets:   
Net operating loss$24,089
 $33,723
Uncrystallized losses

7,960
 9,132
AMT credit carryforward2,652
 12,327
Discounting of net loss reserves43,130
 33,659
Deferred ceding commission
 6,934
Net unearned premium reserve68,305
 47,682
Compensation liabilities20,492
 20,234
Foreign tax credit carryforward9,116
 6,610
Interest expense1,387
 3,815
Goodwill and intangible assets17,127
 3,688
Bad debt reserves5,626
 5,073
Net unrealized foreign exchange gains949
 464
Net unrealized decline of investments13,453
 1,602
Other, net3,418
 1,628
Deferred tax assets before valuation allowance217,704
 186,571
Valuation allowance(44,659) (30,591)
Deferred tax assets net of valuation allowance173,045
 155,980
Deferred income tax liabilities:   
Depreciation and amortization(2,559) (2,333)
Deposit accounting liability(2,292) (2,392)
Contingency reserve(112,852) (110,632)
Deferred policy acquisition costs(32,105) 
Other, net(735) (1,061)
Total deferred tax liabilities(150,543) (116,418)
Net deferred income tax assets$22,502
 $39,562

The Company provides a valuation allowance to reduce certain deferred tax assets to an amount which management expects to more likely than not be realized. As of December 31, 2018,2019, the Company’s valuation allowance was $44.7$48.2 million, compared to $30.6$44.7 million at December 31, 2017.2018. The valuation allowance in both periods was primarily attributable to valuation allowance on the Company’s U.K. Canadian and Australian operations and certain other deferred tax assets relating to loss carryforwards that have a limited use.
At December 31, 2018,2019, the Company’s net operating loss carryforwards and tax credits were as follows:
Year Ended December 31,Year Ended December 31,
2018 Expiration2019 Expiration
Operating Loss Carryforwards    
United Kingdom$59,500
 No expiration$89,000
 No expiration
Ireland14,000
 No expiration10,200
 No expiration
Australia16,000
 No expiration22,000
 No expiration
Hong Kong12,800
 No expiration17,600
 No expiration
Denmark400
 No expiration
United States (1) (2)24,400
 2029 - 203823,100
 2029 - 2038
    
Tax Credits    
U.K. foreign tax credits9,116
 No expiration9,521
 No expiration
U.S. refundable AMT credits2,652
 No expiration1,323
 No expiration
(1) Includes $4.6$0.6 million net operating loss carryforwards from Watford Re.Watford.
(2) On January 30, 2014, the Company’s U.S. mortgage operations underwent an ownership change for U.S. federal income tax purposes as a result of the Company’s acquisition of the CMG Entities. As a result of this ownership change, a limitation has been imposed upon the utilization of approximately $9.6$8.9 million of the Company’s existing U.S. net operating loss carryforwards. Utilization is limited to approximately $0.6 million per year in accordance with Section 382 of the Internal Revenue Code of 1986 as amended (“the Code”).
The Company’s U.S. mortgage operations are eligible for a tax deduction, subject to certain limitations, under Section 832(e) of the Code for amounts required by state law or regulation to be set aside in statutory contingency reserves. The deduction is allowed only to the extent that the Company purchases non-interest bearing U.S. Mortgage Guaranty Tax and Loss Bonds (“T&L Bonds”) issued by the U.S. Treasury Department in an amount equal to the tax benefit derived from deducting any portion of the statutory contingency reserves. T&L Bonds are reflected in ‘other assets’ on the Company’s balance sheet and totaled approximately $182.7$207.0 million at December 31, 2018,2019, compared to $177.2$183.0 million at December 31, 2017.2018.
Deferred income tax liabilities have not been accrued with respect to the undistributed earnings of the Company's U.S., U.K. and Ireland subsidiaries as it is the Company’s intention that all such earnings will be indefinitely reinvested. If the earnings were to be distributed, as dividends or otherwise, such amounts may be subject to withholding tax in the jurisdiction of the paying entity. The Company no longer intends to indefinitely reinvest earnings from the Company's Canada subsidiary, however, no income or withholding taxes have been accrued as the Canada subsidiary does not have positive cumulative earnings and profits and therefore a distribution from this particular subsidiary would not be subject to income taxes or withholding taxes. Potential tax implications of repatriation from the Company’s unremitted earnings that are indefinitely reinvested are driven by facts at the time of distribution. Therefore it is not practicable to estimate the income tax liabilities that might be incurred if such earnings were remitted. Distributions from the U.K. or Ireland would not


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be subject to withholding tax and no deferred income tax liability would need to be accrued.
The Company recognizes interest and penalties relating to unrecognized tax benefits in the provision for income taxes. As


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of December 31, 2018,2019, the Company’s total unrecognized tax benefits, including interest and penalties, were $2.0 million. If recognized, the full amount of the unrecognized tax benefit would generally decreaseimpact the current year annualconsolidated effective tax rate. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
 December 31,
 2019 2018
Balance at beginning of year$2,008
 $2,008
Additions based on tax positions related to the current year
 
Additions for tax positions of prior years
 
Reductions for tax positions of prior years
 
Settlements
 
Balance at end of year$2,008
 $2,008
 December 31,
 2018 2017
    
Balance at beginning of year$2,008
 $2,008
Additions based on tax positions related to the current year
 
Additions for tax positions of prior years
 
Reductions for tax positions of prior years
 
Settlements
 
Balance at end of year$2,008
 $2,008

The Company or its subsidiaries or branches files income tax returns in the U.S. federal jurisdiction and various state, local and foreign jurisdictions.The following table details open tax years that are potentially subject to examination by local tax authorities, in the following major jurisdictions:
Jurisdiction Tax Years
United States 2015-20182016-2019
United Kingdom 2017-20182018-2019
Ireland 2014-20182015-2019
Canada 2014-20182016-2019
Switzerland 2017-20182017-2019
Denmark 2015-20182015-2019

As of December 31, 2018,2019, the Company’s current income tax recoverablepayable (included in “Other assets”liabilities”) was $21.2$13.5 million.
15.    Transactions with Related Parties
Kewsong Lee, a director of Arch Capital until November 2,In 2017, resigned from Arch Capital’s Board of Directors because of the expansion of his duties at The Carlyle Group (“Carlyle”) following his promotion to co-CEO effective January 1, 2018. As part of its investment philosophy, the Company investsacquired approximately 25% of Premia Holdings Ltd. Premia Holdings Ltd. is the parent of Premia Reinsurance Ltd., a portionmulti-line Bermuda reinsurance company (together with Premia Holdings Ltd., “Premia”). Premia’s strategy is to reinsure or acquire companies or reserve portfolios in the non-life property and casualty insurance and reinsurance run-off market. Arch Re Bermuda and certain Arch co-investors invested $100.0 million and acquired approximately 25% of its investment portfolio in alternative investment funds. AsPremia as well as warrants to purchase additional common equity. Arch has appointed two directors to serve on the seven person board of directors of Premia. Arch Re Bermuda is providing a 25% quota share reinsurance treaty on certain business written by Premia.
In the 2019 fourth quarter, Barbican entered into certain reinsurance and related transactions with Premia pursuant to which Premia assumed a transfer of liability for the 2018 and prior years of account of Barbican as of July 1, 2019. Barbicanrecorded reinsurance recoverable on unpaid and paid losses and funds held liability of $177.7 million and $180.0 million, respectively, at December 31, 2017, the total value of the Company’s investments in funds or other investments managed by Carlyle was approximately $293.0 million, and the Company had aggregate unfunded commitments to funds managed by Carlyle of $468.8 million. The Company may make additional commitments to funds managed by Carlyle from time to time. During 2017 and 2016, the Company made aggregate capital contributions to funds managed by Carlyle of $131.8 million and $62.1 million, respectively. During 2017 and 2016, the Company received aggregate cash distributions from funds managed by Carlyle of $55.6 million and $21.5 million, respectively.2019.
Certain directors and executive officers of the Company own common and preference shares of Watford Re.Watford. See note 11, “Variable Interest Entity and Noncontrolling Interests,” for information about Watford Re.Watford.
16.    Leases
In the ordinary course of business, the Company renews and enters into new leases for office property and equipment. At the lease inception date, the Company determines whether a contract contains a lease and its classification as a finance or operating lease. Primarily all of the Company’s leases are classified as operating leases. The Company’s operating leases have remaining lease terms of up to 11 years, some of which include options to extend the lease term. The Company considers these options when determining the lease term and measuring its lease liability and right-of-use asset. In addition, the Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Short-term operating leases with an initial term of twelve months or less were excluded on the Company's consolidated balance sheet and represent an inconsequential amount of operating lease expense.

As most leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the lease commencement date in determining the present value of lease payments.

Additional information regarding the Company’s operating leases is as follows:
December 31, 2019  
Operating lease costs

 $30,478
Cash payments included in the measurement of lease liabilities reported in operating cash flows $27,521
Right-of-use assets obtained in exchange for new lease liabilities $7,445
Right-of-use assets (1) $131,661
Operating lease liability (1) $150,519
Weighted average discount rate 3.9%
Weighted average remaining lease term 6.4 years
(1)The right-of-use assets are included in ‘other assets’ while the operating lease liability is included in ‘other liabilities.’



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The following table presents the contractual maturities of the Company's operating lease liabilities at December 31, 2019:
Years Ending December 31,  
2020 $31,907
2021 30,842
2022 27,597
2023 23,027
2024 16,913
2025 and thereafter 40,167
Total undiscounted lease liability 170,453
Less: present value adjustment (19,934)
Operating lease liability $150,519


At December 31, 2018, the future minimum rental commitments, exclusive of escalation clauses and maintenance costs and net of rental income, for all of the Company’s operating leases was as follows:
Years Ending December 31,  
2019 $31,088
2020 30,491
2021 29,351
2022 26,068
2023 21,408
2024 and thereafter 54,745
Total $193,151


All of these leases are for the rental of office space, with expiration terms that range from 2020 to 2030. Rental expense was approximately $30.5 million, $27.6 million and $31.1 million for 2019, 2018 and 2017, respectively.
At December 31, 2019, the Company has entered into certain financing lease agreements. The future lease payments for the Company’s financing leases are expected to be $4.8 million and $2.1 million for 2020 and 2021, respectively.
17.    Commitments and Contingencies
Concentrations of Credit Risk
The creditworthiness of a counterparty is evaluated by the Company, taking into account credit ratings assigned by independent agencies. The credit approval process involves an assessment of factors, including, among others, the counterparty, country and industry credit exposure limits. Collateral may be required, at the discretion of the Company, on certain transactions based on the creditworthiness of the counterparty.
The areas where significant concentrations of credit risk may exist include unpaid losses and loss adjustment expenses recoverable, contractholder receivables, ceded unearned premiums, paid losses and loss adjustment expenses recoverable net of reinsurance balances payable, investments and cash and cash equivalent balances. A credit exposure exists
with respect to reinsurance recoverables as they may become uncollectible. The Company manages its credit risk in its reinsurance relationships by transacting with reinsurers that it considers financially sound and, if necessary, the Company may hold collateral in the form of funds, trust accounts and/or irrevocable letters of credit. This collateral can be drawn on for amounts that remain unpaid beyond specified time periods on an individual reinsurer basis. In addition, certain insurance policies written by the Company’s insurance operations feature


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large deductibles, primarily in its construction and national accounts lines of business. Under such contracts, the Company is obligated to pay the claimant for the full amount of the claim. The Company is subsequently reimbursed by the policyholder for the deductible amount. These amounts are included on a gross basis in the consolidated balance sheet in contractholder payables and contractholder receivables, respectively. In the event that the Company is unable to collect from the policyholder, the Company would be liable for such defaulted amounts. Collateral, primarily in the form of letters of credit, cash and trusts, is obtained from the policyholder to mitigate the Company’s credit risk. In the instances where the company receives collateral in the form of cash, the Company records a related liability in “Collateral held for insured obligations.”
In addition, the Company underwrites a significant amount of its business through brokers and a credit risk exists should any of these brokers be unable to fulfill their contractual obligations with respect to the payments of insurance and reinsurance balances owed to the Company. The following table summarizes the percentage of the Company’s gross premiums written generated from or placed by the largest brokers:
Broker
Year Ended December 31,

2019
2018
2017
Aon Corporation and its subsidiaries
12.2%
11.4%
11.3%
Marsh & McLennan Companies and its subsidiaries
9.6%
9.3%
10.7%
Broker
Year Ended December 31,

2018
2017
2016
Aon Corporation and its subsidiaries
11.4%
11.3%
14.4%
Marsh & McLennan Companies and its subsidiaries
9.3%
10.7%
13.5%

No other broker and no one insured or reinsured accounted for more than 10% of gross premiums written for 2019, 2018 2017 and 2016.2017.
The Company’s available for sale investment portfolio is managed in accordance with guidelines that have been tailored to meet specific investment strategies, including standards of diversification, which limit the allowable holdings of any single issue. There were no investments in any entity in excess of 10% of the Company’s shareholders’ equity at December 31, 20182019 other than investments issued or guaranteed by the United States government or its agencies.


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Investment Commitments
The Company’s investment commitments, which are primarily related to agreements entered into by the Company to invest in funds and separately managed accounts when called upon, were approximately $1.77$1.69 billion and $1.70$1.77 billion at December 31, 20182019 and 2017,2018, respectively.
Contingent Consideration Liability
Pursuant to the Company’s 2014 acquisition of the CMG Entities, the Company made a contingent consideration payment of $61.5 million in April 2019 and $71.7 million in April 2017. The maximum
remaining amount of contingent consideration payments is $68.2$6.7 million over the remaining earn-out period. To the extent that the adjusted book value of the CMG Entities drops below the cumulative amount paid by the Company, no additional payments would be due.
Leases and Purchase Obligations
At December 31, 2018, the future minimum rental commitments, exclusive of escalation clauses and maintenance costs and net of rental income, for all of the Company’s operating leases are as follows:
2019$31,088
202030,491
202129,351
202226,068
202321,408
2024 and thereafter54,745
Total$193,151
All of these leases are for the rental of office space, with expiration terms that range from 2019 to 2030. Rental expense, net of income from subleases, was approximately $27.6 million, $31.1 million and $24.2 million for 2018, 2017 and 2016, respectively.
At December 31, 2018, the Company has entered into capital lease agreements. The future lease payments for the Company’s capital leases are expected to be $6.2 million, $4.8 million and $2.1 million for 2019, 2020 and 2021, respectively.
The Company has also entered into certain agreements which commit the Company to purchase goods or services, primarily related to software and computerized systems. Such purchase obligations were approximately $39.5$55.6 million and $29.7$39.5 million at December 31, 20182019 and 2017,2018, respectively.
Employment and Other Arrangements
At December 31, 2018,2019, the Company has entered into employment agreements with certain of its executive officers. Such employment arrangements provide for compensation in the form of base salary, annual bonus, share-based awards, participation in the Company’s employee benefit programs and the reimbursements of expenses.


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17.18.    Debt and Financing Arrangements
The Company’s senior notes payable at December 31, 20182019 and 20172018 were as follows:
     Carrying Amount at     Carrying Amount at
 Interest Principal December 31, Interest Principal December 31,
 (Fixed) Amount 2018 2017 (Fixed) Amount 2019 2018
2034 notes (1) 7.350% 300,000
 297,150
 297,053
 7.350% 300,000
 297,254
 297,150
2043 notes (2) 5.144% 500,000
 494,723
 494,621
 5.144% 500,000
 494,831
 494,723
2026 notes (3) 4.011% 500,000
 496,417
 496,043
 4.011% 500,000
 496,806
 496,417
2046 notes (4) 5.031% 450,000
 445,238
 445,167
 5.031% 450,000
 445,317
 445,238
Watford notes (5) 6.500% 140,000
 137,418
 
   $1,750,000
 $1,733,528
 $1,732,884
   $1,890,000
 $1,871,626
 $1,733,528
(1) Senior notes of Arch Capital issued on May 4, 2004 and due May 1, 2034 (“2034 notes”).
(2) Senior notes of Arch-U.S., a wholly-owned subsidiary of Arch Capital, issued on December 13, 2013 and due November 1, 2043 (“2043 notes”), fully and unconditionally guaranteed by Arch Capital.
(3) Senior notes of Arch Capital Finance LLC (“Arch Finance”), a wholly-owned finance subsidiary of Arch Capital, issued on December 8, 2016 and due December 15, 2026 (“2026 notes”), fully and unconditionally guaranteed by Arch Capital.
(4) Senior notes of Arch Finance issued on December 8, 2016 and due December 15, 2046 (“2046 notes”), fully and unconditionally guaranteed by Arch Capital.Capital
(5) Senior notes of Watford issued on July 2, 2019 and due July 2, 2029, reflecting the elimination of amounts owned by Arch-U.S.
The 2034 notes are Arch Capital’s senior unsecured obligations and rank equally with all of its existing and future senior unsecured indebtedness. Interest payments on the 2034 notes are due on May 1st and November 1st of each year. Arch Capital may redeem the 2034 notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price.
The 2043 notes are unsecured and unsubordinated obligations of Arch-U.S. and Arch Capital, respectively, and rank equally and ratably with the other unsecured and unsubordinated indebtedness of Arch-U.S. and Arch Capital, respectively. Interest payments on the 2043 notes are due on May 1st and November 1st of each year. Arch-U.S. may redeem the 2043 notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price.
The 2026 notes are unsecured and unsubordinated obligations of Arch Finance and Arch Capital, respectively, and rank equally and ratably with the other unsecured and unsubordinated indebtedness of Arch Finance and Arch Capital, respectively. Interest payments on the 2026 notes are due on June 15th and December 15th of each year. Arch Finance may redeem the 2026 notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price.
The 2046 notes are unsecured and unsubordinated obligations of Arch Finance and Arch Capital, respectively, and rank equally and ratably with the other unsecured and unsubordinated indebtedness of Arch Finance and Arch Capital, respectively. Interest payments on the 2046 notes are due on June 15th and December 15th of each year. Arch Finance may
redeem the 2046 notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price.
On July 2, 2019, Watford completed an offering of $175.0 million in aggregate principal amount of its 6.5% senior notes, due July 2, 2029 (“Watford Senior Notes”). Interest on the Watford Senior Notes will be paid semi-annually in arrears on each January 2 and July 2, commencing January 2, 2020. The $172.4 million net proceeds from the offering were used to redeem a portion of Watford Preference Shares. The Company purchased $35.0 million in aggregate principal amount of the Watford Senior Notes.
Letter of Credit and Revolving Credit Facilities
In the normal course of its operations, the Company enters into agreements with financial institutions to obtain secured and unsecured credit facilities.


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On October 26, 2016,December 17, 2019, Arch Capital and certain of its subsidiaries entered into an $850.0a $750.0 million five-year credit facility (the “Credit Facility”) with a syndication of lenders. The Credit Facility consists of a $350.0$250.0 million secured facility for letters of credit (the “Secured Facility”) and a $500.0 million unsecured facility for revolving loans and letters of credit (the “Unsecured Facility”). Obligations of each borrower under the Secured Facility for letters of credit are secured by cash and eligible securities of such borrower held in collateral accounts. Subject toCommitments under the receipt of commitments, the SecuredCredit Facility may be increased by up to, but not exceeding, an aggregate of $350.0 million, and the Unsecured Facility may be increased to an amount not to exceed $750.0 million.$1.25 billion. Arch Capital has a one-time option to convert any or all outstanding revolving loans of Arch Capital and/or Arch-U.S. to term loans with the same terms as the revolving loans except that any prepayments may not be re-borrowed. Arch-U.S. guarantees the obligations of Arch Capital, and Arch Capital guarantees the obligations of Arch-U.S. Borrowings of revolving loans may be made at a variable rate based on LIBOR or an alternative base rate at the option of Arch Capital. Arch Capital and its lenders may agree on a LIBOR successor rate at the appropriate time to address the replacement of LIBOR. Secured letters of credit are available for issuance on behalf of certain Arch Capital insurance and reinsurance subsidiaries. The Credit Facility is structured such that each party that requests a letter of credit or borrowing does so only for itself and for only its own obligations.
The Credit Facility contains certain restrictive covenants customary for facilities of this type, including restrictions on indebtedness, consolidated tangible net worth, minimum shareholders’ equity levels and minimum financial strength ratings. Arch Capital and its subsidiaries which are party to the agreement were in compliance with all covenants contained therein at December 31, 2018.2019.
Commitments under the Credit Facility will expire on October 26, 2021,December 17, 2024, and all loans then outstanding must be repaid. Letters of credit issued under the Unsecured Facility will not have an expiration date later than October 26, 2022.December 17, 2025.
Under the $350.0$250.0 million secured letter of credit facility, Arch Capital’s subsidiaries had $174.8$225.4 million of letters of credit outstanding and remaining capacity of $175.2$24.6 million at December 31, 2018.2019. In addition, certain of Arch Capital’s subsidiaries had outstanding secured and unsecured letters of credit of $167.5$18.1 million and $195.0 million respectively, which were issued in the normal course of business.
When issued, theseall secured letters of credit are secured by a portion of the investment portfolio. At December 31, 2018,2019, these letters of


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credit were secured by investments with a fair value of $362.0$255.4 million.
Watford Re has access to a $100 million secured letter of credit facility expiring on May 16, 20192020, a $100 million unsecured letter of credit facility which auto extends on September 20, 2020 and an $800 million secured credit facility expiring on
November 30, 2021 that provides for borrowings and the issuance of letters of credit not to exceed $400 million. Borrowings of revolving loans may be made by Watford Re at a variable rate based on LIBOR or an alternative base rate at the option of Watford Re.Watford. At December 31, 2018,2019, Watford Re had $68.9$122.9 million in outstanding letters of credit under the two facilities and $455.7$484.3 million of borrowings outstanding under the secured credit facility, backed by Watford Re’sWatford’s investment portfolio. Watford Re was in compliance with all covenants contained in both of itsthese credit facilities at December 31, 2018.2019. The Company does not guarantee or provide credit support for Watford, Re, and the Company’s financial exposure to Watford Re is limited to its investment in Watford Re’sWatford’s senior notes, common and preferred shares and counterparty credit risk (mitigated by collateral) arising from the reinsurance transactions.
The Company’s outstanding revolving credit agreement borrowings were as follows:
  Year Ended December 31,
 2019 2018
Arch Capital $
 $
Watford 484,287
 455,682
Total $484,287
 $455,682

  Year Ended December 31,
 2018 2017
Arch-U.S. $
 $375,000
Watford Re 455,682
 441,132
Total revolving credit agreement borrowings $455,682
 $816,132



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18.
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



19.    Goodwill and Intangible Assets
The following table shows an analysis of goodwill and intangible assets:
 Goodwill Intangible assets (indefinite life) Intangible assets (finite life) Total
Net balance at Dec. 31, 2017$198,236
 $68,174
 $386,201
 $652,611
Acquisitions51,476
 
 43,000
 94,476
Amortization
 
 (105,670) (105,670)
Impairment (1)
 (6,300) 
 (6,300)
Foreign currency movements and other adjustments(92) 
 (105) (197)
Net balance at Dec. 31, 2018249,620
 61,874
 323,426
 634,920
Acquisitions (2)74,780
 24,431
 82,482
 181,693
Amortization
 
 (82,104) (82,104)
Impairment (1)
 (1,000) 
 (1,000)
Foreign currency movements and other adjustments
2,151
 605
 1,817
 4,574
Net balance at Dec. 31, 2019$326,551
 $85,910
 $325,621
 $738,083
        
Gross balance at Dec. 31, 2019$331,448
 $85,305
 $744,583
 $1,161,336
Accumulated amortization
 
 (419,294) (419,294)
Foreign currency movements and other adjustments
(4,897) 605
 332
 (3,959)
Net balance at Dec. 31, 2019$326,551
 $85,910
 $325,621
 $738,083

 Goodwill Intangible assets (indefinite life) Intangible assets (finite life) Total
Net balance at Dec. 31, 2016$204,022
 $68,174
 $509,357
 $781,553
Acquisitions806
 
 2,300
 3,106
Amortization
 
 (125,778) (125,778)
Foreign currency movements and other adjustments(6,592) 
 322
 (6,270)
Net balance at Dec. 31, 2017198,236
 68,174
 386,201
 652,611
Acquisitions51,476
 
 43,000
 94,476
Amortization
 
 (105,670) (105,670)
Impairment (1)
 (6,300) 
 (6,300)
Foreign currency movements and other adjustments
(92) 
 (105) (197)
Net balance at Dec. 31, 2018$249,620
 $61,874
 $323,426
 $634,920
        
Gross balance at Dec. 31, 2018$256,668
 $61,874
 $662,101
 $980,643
Accumulated amortization
 
 (337,190) (337,190)
Foreign currency movements and other adjustments
(7,048) 
 (1,485) (8,533)
Net balance at Dec. 31, 2018$249,620
 $61,874
 $323,426
 $634,920
(1)    The impairment to the indefinite-lived intangible assets during the year ended December 31, 2018 of $6.3 million related to insurance licenses from the acquisition of UGC that were forfeited as a result of the merger of two subsidiaries. The impairment was recorded in “corporate expenses” in the consolidated statement of income.


ARCH CAPITAL(1)157The impairment to the indefinite-lived intangible assets during the year ended December 31, 2019 and 2018 of $1.0 million and $6.3 million related to insurance licenses from the acquisition of UGC.
2018 FORM 10-K
(2)Certain amounts for the Company’s 2019 acquisitions are considered provisional.


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The following table presents the components of goodwill and intangible assets:
 Gross Balance Accumulated
Amortization
 Foreign Currency Translation Adjustment and Other 
Net
Balance
Dec. 31, 2019       
Acquired insurance contracts$452,470
 $(336,559) $310
 $116,221
Operating platform52,674
 (39,571) (259) 12,844
Distribution relationships243,838
 (50,542) 212
 193,508
Goodwill331,448
 
 (4,897) 326,551
Insurance licenses63,390
 
 
 63,390
Syndicate capacity21,915
 
 605
 22,520
Unfavorable service contract(9,533) 8,657
 
 (876)
Other5,134
 (1,279) 70
 3,925
Total$1,161,336
 $(419,294) $(3,959) $738,083
        
Dec. 31, 2018       
Acquired insurance contracts$435,067
 $(271,981) $(150) $162,936
Operating platform47,400
 (35,402) 
 11,998
Distribution relationships186,611
 (36,718) (1,335) 148,558
Goodwill256,668
 
 (7,048) 249,620
Insurance licenses61,874
 
 
 61,874
Syndicate capacity
 
 
 
Unfavorable service contract(9,533) 7,949
 
 (1,584)
Other2,556
 (1,038) 
 1,518
Total$980,643
 $(337,190) $(8,533) $634,920
 Gross Balance Accumulated
Amortization
 Foreign Currency Translation Adjustment and Other 
Net
Balance
Dec. 31, 2018       
Acquired insurance contracts$435,067
 $(271,981) $(150) $162,936
Operating platform47,400
 (35,402) 
 11,998
Distribution relationships186,611
 (36,718) (1,335) 148,558
Goodwill256,668
 
 (7,048) 249,620
Insurance licenses61,874
 
 
 61,874
Unfavorable service contract(9,533) 7,949
 
 (1,584)
Other2,556
 (1,038) 
 1,518
Total$980,643
 $(337,190) $(8,533) $634,920
        
Dec. 31, 2017       
Acquired insurance contracts$435,067
 $(182,947) $(150) $251,970
Operating platform44,900
 (26,422) 
 18,478
Distribution relationships147,611
 (28,321) (1,230) 118,060
Goodwill205,192
 
 (6,956) 198,236
Insurance licenses68,174
 
 
 68,174
Unfavorable service contract(9,533) 6,997
 
 (2,536)
Other1,056
 (827) 
 229
Total$892,467
 $(231,520) $(8,336) $652,611

The estimated remaining amortization expense for the Company’s intangible assets with finite lives is as follows:
2020$65,958
202148,063
202233,972
202331,731
202427,566
2025 and thereafter118,331
Total$325,621
2019$77,529
202049,689
202133,043
202227,149
202324,908
2024 and thereafter111,108
Total$323,426

The estimated remaining useful lives of these assets range from one to eighteenseventeen years at December 31, 2018.2019.


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Other than the impairmentimpairments described above, the Company’s annual impairment reviews for goodwill and intangible assets did not result in the recognition of impairment losses for 2019, 2018 2017 and 2016.2017.
19.20.    Shareholders’ Equity
Authorized and Issued
The authorized share capital of Arch Capital consists of 1.8 billion Common Shares, par value of $0.0011 per share, and 50 million Preferred Shares, par value of $0.01 per share.
Common Shares
The following table presents a roll-forward of changes in Arch Capital’s issued and outstanding Common Shares:
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Common Shares:          
Shares issued and outstanding, beginning of year549,872,226
 523,932,303
 519,323,547
570,737,283
 549,872,226
 523,932,303
Shares issued (1)2,757,506
 3,388,344
 3,447,336
2,835,994
 2,757,506
 3,388,344
Conversion of Series D preferred shares (2)17,022,600
 21,265,860
 

 17,022,600
 21,265,860
Restricted shares issued, net of cancellations1,084,951
 1,285,719
 1,161,420
1,043,918
 1,084,951
 1,285,719
Shares issued and outstanding, end of year570,737,283
 549,872,226
 523,932,303
574,617,195
 570,737,283
 549,872,226
Common shares in treasury, end of year(168,282,449) (156,938,409) (155,569,752)(168,997,994) (168,282,449) (156,938,409)
Shares issued and outstanding, end of year402,454,834
 392,933,817
 368,362,551
405,619,201
 402,454,834
 392,933,817
(1)Includes shares issued from the exercise of stock options and stock appreciation rights, and shares issued from the employee share purchase plan.
(2)Such shares represent common shares that were issued upon conversion of the non-voting common equivalent preference shares issued in connection with the AIG acquisition.
Three-For-One Common Share Split
In May 2018, shareholders approved a proposal to amend the memorandum of association by sub-dividing the authorized common shares of Arch Capital to effect a three-for-one3-for-one split of Arch Capital’s common shares. The share split changed the Company’s authorized common shares to 1.8 billion common shares (600 million previously), with a par value of $.0011 per share ($.0033 previously). Information pertaining to the composition of the Company’s shareholders’ equity accounts, shares and earnings per share has been retroactively restated in the accompanying financial statements and notes to the consolidated financial statements to reflect the share split.
Share Repurchase Program
The board of directors of Arch Capital has authorized the investment in Arch Capital’s common shares through a share repurchase program. At December 31, 2018, approximately $163.7 million2019, $1.0 billion of share repurchases were available under the program. Repurchases under the program may be effected from


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time to time in open market or privately negotiated transactions through December 31, 2019.2021. The timing and amount of the repurchase transactions under this program will depend on a variety of factors, including market conditions and corporate and regulatory considerations.
Repurchases of Arch Capital’s common shares in connection with the share repurchase plan and other share-based transactions were held in the treasury under the cost method, and the cost of the common shares acquired is included in ‘Common shares held in treasury, at cost.’ At December 31, 2018,2019, Arch Capital held 168.3169.0 million shares for an aggregate cost of $2.38$2.41 billion in treasury, at cost.
The Company’s repurchases under the share repurchase program were as follows:
 Year Ended December 31,
 2019 2018 2017
Aggregate cost of shares repurchased$2,871
 $282,762
 $
Shares repurchased110,598
 10,559,850
 
Average price per share repurchased$25.96
 $26.78
 $
 Year Ended December 31,
 2018 2017 2016
Aggregate cost of shares repurchased$282,762
 $
 $75,256
Shares repurchased10,559,850
 
 3,420,411
Average price per share repurchased$26.78
 $
 $22.00

Since the inception of the share repurchase program through December 31, 2018,2019, Arch Capital has repurchased approximately 386.2386.3 million common shares for an aggregate purchase price of $3.97 billion.
Convertible Non-Voting Common Equivalent Preferred Shares
On December 31, 2016, the Company completed the acquisition of all of the outstanding shares of capital stock of UGC. Based upon a formula set forth in the Stock Purchase Agreement, AIG received 1,276,282 of Arch Capital’s Series D convertible non-voting common equivalent preferred shares (“Series D Preferred Shares”). Each Series D Preferred Share converts to 10 shares of Arch Capital fully paid non-assessable common stock.
The Company determined, based on a review of the terms features and rights of the series D preferred shares compared to the rights of the Company’s common shareholders, the underlying 38,288,460 common shares (split adjusted) that the convertible securities convert to were common share equivalents at the time of their issuance.


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In June 2017, Arch Capital completed an underwritten public secondary offering of 21,265,860 common shares (split adjusted) by AIG following transfer of 708,862 Series D Preferred Shares. In March 2018, Arch Capital completed an underwritten public secondary offering of 17,022,600 common shares (split adjusted) by AIG following transfer of 567,420 Series D Preferred Shares. Proceeds from the sale of common shares pursuant to the public offering were received by AIG.
At December 31, 2019 and 2018, no0 Series D Preferred Shares were outstanding.
Series F Preferred Shares
In August 2017 and November 2017, Arch Capital completed combined $330 million of underwritten public offerings ($230 million in August 2017 and $100 million in November 2017) of 13.2 million depositary shares (the “Series F Depositary Shares”), each of which represents a 1/1,000th interest in a share of its 5.45% Non-Cumulative Preferred Shares, Series F, havewith a $0.01 par value and $25,000 liquidation preference per share (equivalent to $25 liquidation preference per Series F Depositary Share) (the “Series F Preferred Shares”). Each Series F Depositary Share, evidenced by a depositary receipt, entitles the holder, through the depositary, to a proportional fractional interest in all rights and preferences of the Series F Preferred Shares represented thereby (including any dividend, liquidation, redemption and voting rights).
Holders of Series F Preferred Shares will be entitled to receive dividend payments only when, as and if declared by our board of directors or a duly authorized committee of the board. Any such dividends will be payable from, and including, the date of original issue on a noncumulative basis, quarterly in arrears on the last day of March, June, September and December of each year, at an annual rate of 5.45%. Dividends on the Series F Preferred Shares are not cumulative. The Company will be restricted from paying dividends on or repurchasing its common shares unless certain dividend payments are made on the Series F Preferred Shares.
Except in specified circumstances relating to certain tax or corporate events, the Series F Preferred Shares are not redeemable prior to August 17, 2022 (the fifth anniversary of the issue date). On and after that date, the Series F Preferred Shares will be redeemable at the Company’s option, in whole or in part, at a redemption price of $25,000 per share of the Series F Preferred Shares (equivalent to $25 per depositary share), plus any declared and unpaid dividends, without accumulation of any undeclared dividends to, but excluding, the redemption date. The Series F Depositary Shares will be redeemed if and to the extent the related Series F Preferred Shares are redeemed by the Company. Neither the Series F Depositary Shares nor the Series F Preferred Shares have a stated maturity, nor will they be subject to any sinking fund or mandatory redemption. The Series F Preferred Shares are not convertible into any other securities. The Series F Preferred Shares will not have voting rights, except under limited
circumstances. The net proceeds from the Series F Preferred Share offerings were used to redeem the Company’s outstanding 6.75% Series C Non-Cumulative Preferred Shares.
Series E Preferred Shares
On September 29, 2016, Arch Capital completed a $450 million underwritten public offering of 18.0 million depositary shares


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(the (the “Series E Depositary Shares”), each of which represents a 1/1,000th interest in a share of its 5.25% Non-Cumulative Preferred Shares, Series E, havewith a $0.01 par value and $25,000 liquidation preference per share (equivalent to $25 liquidation preference per Series E Depositary Share) (the “Series E Preferred Shares”). Each Series E Depositary Share, evidenced by a depositary receipt, entitles the holder, through the depositary, to a proportional fractional interest in all rights and preferences of the Series E Preferred Shares represented thereby (including any dividend, liquidation, redemption and voting rights).
Holders of Series E Preferred Shares will be entitled to receive dividend payments only when, as and if declared by our board of directors or a duly authorized committee of the board. Any such dividends will be payable from, and including, the date of original issue on a non-cumulative basis, quarterly in arrears on the last day of March, June, September and December of each year, at an annual rate of 5.25%. Dividends on the Series E Preferred Shares are not cumulative. The Company will be restricted from paying dividends on or repurchasing its common shares unless certain dividend payments are made on the Series E preferred shares.
Except in specified circumstances relating to certain tax or corporate events, the Series E Preferred Shares are not redeemable prior to September 29, 2021 (the fifth anniversary of the issue date). On and after that date, the Series E Preferred Shares will be redeemable at the Company’s option, in whole or in part, at a redemption price of $25,000 per share of the Series E Preferred Shares (equivalent to $25 per Series E Depositary Share), plus any declared and unpaid dividends, without accumulation of any undeclared dividends to, but excluding, the redemption date. The Series E Depositary Shares will be redeemed if and to the extent the related Series E Preferred Shares are redeemed by the Company. Neither the Series E Depositary Shares nor the Series E Preferred Shares have a stated maturity, nor will they be subject to any sinking fund or mandatory redemption. The Series E Preferred Shares are not convertible into any other securities. The Series E Preferred Shares will not have voting rights, except under limited circumstances.
Series C Preferred Shares
On January 2, 2018, Arch Capital redeemed all outstanding 6.75% Series C non-cumulative preferred shares. The preferred shares were redeemed at a redemption price equal to $25 per share, plus all declared and unpaid dividends to (but excluding)


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the redemption date. In accordance with GAAP, following the redemption, original issuance costs related to such shares have been removed from additional paid-in capital and recorded as a “loss on redemption of preferred shares.” Such adjustment had no impact on total shareholders’ equity or cash flows.
20.21.    Share-Based Compensation
Long Term Incentive and Share Award Plans
The Company utilizes share-based compensation plans for officers, other employees and directors of Arch Capital and its subsidiaries to provide competitive compensation opportunities, to encourage long-term service, to recognize individual contributions and reward achievement of performance goals and to promote the creation of long-term value for shareholders by aligning the interests of such persons with those of shareholders.
The 2018 Long-Term Incentive and Share Award Plan (the “2018 Plan”) became effective as of May 9, 2018 following approval by shareholders of the Company. The 2018 Plan provides for the issuance of restricted stock units, performance units, restricted shares, performance shares, stock options and stock appreciation rights and other equity-based awards to our employees and directors. The 2018 Plan authorizes the issuance of 34,500,000 common shares and will terminate as to future awards on February 28, 2028. At December 31, 2018, 32,890,6322019, 25,201,143 shares are available for future issuance.
The 2015 Long Term Incentive and Share Award Plan (the (“2015 Plan”) authorizes the issuance of 12,900,000 common shares and became effective as of May 7, 2015 following approval by shareholders of the Company. The 2015 Plan provides for the issuance of share-based awards to our employees and directors and will terminate as to future awards on February 26, 2025. At December 31, 2018, 251,8202019, 390,156 shares are available for future issuance.
The 2012 Long Term Incentive and Share Award Plan (the “2012 Plan”) became effective as of May 9, 2012 following approval by shareholders of the Company. The 2012 Plan authorizes the issuance of 22,301,772 common shares and will terminate as to future awards on February 28, 2022. At December 31, 2018, 389,4062019, 606,589 shares are available for grant under the 2012 Plan.
Upon shareholder approval on May 6, 2016, the Amended and Restated Arch Capital Group Ltd. 2007 Employee Share Purchase Plan (the “ESPP”) became effective and a total of 4,689,777 common shares were reserved for issuance. The purpose of the ESPP is to give employees of Arch Capital and its subsidiaries an opportunity to purchase common shares through payroll deductions, thereby encouraging employees to share in the economic growth and success of Arch Capital and its subsidiaries. The ESPP is designed to qualify as an “employee share purchase plan” under Section 423 of the Code.
At December 31, 2018,2019, approximately 3,281,6862,729,721 shares remain available for issuance.


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Stock Options and Stock Appreciation Rights
The Company generally issues stock options and SARs to eligible employees, with exercise prices equal to the fair market values of the Company’s Common Shares on the grant dates. Such grants generally vest over a three year period with one-third vesting on the first, second and third anniversaries of the grant date.
The grant date fair value is determined using the Black-Scholes option valuation model. The expected life assumption wasis based on an expected term analysis, which incorporatedincorporates the Company’s historical exercise experience. Expected volatility is based on the Company’s daily historical trading data of its common shares. The table below summarizes the assumptions used.
 Year Ended December 31,
 2019
2018
2017
Dividend yield% % %
Expected volatility18.1% 21.3% 21.3%
Risk free interest rate2.5% 2.8% 2.0%
Expected option life6.0 years
 6.0 years
 6.0 years
 Year Ended December 31,
 2018
2017
2016
Dividend yield% % %
Expected volatility21.3% 21.3% 21.7%
Risk free interest rate2.8% 2.0% 1.4%
Expected option life6.0 years
 6.0 years
 6.0 years

A summary of stock option and SAR activity under the Company’s Long Term Incentive and Share Award Plans during 20182019 is presented below:
 Year Ended December 31, 2019
 
Number of
Options / SARs
 Weighted Average Exercise Price Weighted Average Contractual Term Aggregate Intrinsic Value
Outstanding, beginning of year20,076,593
 $19.37
    
Granted1,228,280
 $32.86
    
Exercised(2,355,216) $13.45
    
Forfeited or expired(96,639) $29.19
    
Outstanding, end of year18,853,018
 $20.94
 5.03 $413,842
Exercisable, end of year15,517,508
 $19.05
 4.28 $369,917

 Year Ended December 31, 2018
 
Number of
Options / SARs
 Weighted Average Exercise Price Weighted Average Contractual Term Aggregate Intrinsic Value
Outstanding, beginning of year19,770,174
 $17.22
    
Granted3,158,715
 $27.22
    
Exercised(2,649,229) $11.99
    
Forfeited or expired(203,067) $28.68
    
Outstanding, end of year20,076,593
 $19.37
 5.44 $161,666
Exercisable, end of year16,162,208
 $17.29
 4.59 $160,363


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The aggregate intrinsic value of stock options and SARs exercised represents the difference between the exercise price of the stock options and SARs and the closing market price of the Company’s common shares on the exercise dates. During 2018,2019, the Company received proceeds of $6.6$13.1 million from the exercise of stock options and recognized a tax benefit of $4.9$6.9 million from the exercise of stock options and SARs.
Year Ended December 31,Year Ended December 31,
2018 2017 20162019 2018 2017
Weighted average grant date fair value$7.50
 $8.15
 $5.71
$7.90
 $7.50
 $8.15
Aggregate intrinsic value of Options/SARs exercised$43,468
 $64,173
 $59,617
$51,350
 $43,468
 $64,173

Restricted Common Shares and Restricted Units
The Company also issues restricted share and unit awards to eligible employees and directors, for which the fair value is equal to the fair market values of the Company’s Common Shares on the grant dates. Restricted share and unit awards generally vest over a three year period with one-third vesting on the first, second and third anniversaries of the grant date.
A summary of restricted share and restricted unit activity under the Company’s Long Term Incentive and Share Award Plans for 20182019 is presented below:
 
Restricted
Common
Shares
 
Restricted
Unit
Awards
Unvested Shares:   
Unvested balance, beginning of year1,619,285
 1,254,558
Granted384,926
 810,815
Vested(931,696) (422,021)
Forfeited(26,594) (80,340)
Unvested balance, end of year1,045,921
 1,563,012
    
Weighted Average Grant Date Fair Value:   
Unvested balance, beginning of year$28.88
 $27.58
Granted$33.43
 $32.64
Vested$28.31
 $27.75
Forfeited$30.15
 $29.36
Unvested balance, end of year$31.02
 $30.07

 
Restricted
Common
Shares
 
Restricted
Unit
Awards
Unvested Shares:   
Unvested balance, beginning of year2,517,009
 456,477
Granted484,940
 1,078,347
Vested(1,269,057) (223,929)
Forfeited(113,607) (56,337)
Unvested balance, end of year1,619,285
 1,254,558
    
Weighted Average Grant Date Fair Value:   
Unvested balance, beginning of year$27.76
 $28.94
Granted$26.76
 $26.90
Vested$25.89
 $27.04
Forfeited$28.56
 $27.78
Unvested balance, end of year$28.88
 $27.58
The following table presents the weighted average grant date fair value of restricted shares and restricted unit awards granted and the aggregate fair value of restricted shares and unit awards vesting in each year.
 Year Ended December 31,
 2019 2018 2017
Restricted shares and restricted unit awards granted1,195,741
 1,563,287
 1,747,176
Weighted average grant date fair value$32.89
 $26.86
 $32.02
Aggregate fair value of vested restricted share and unit awards$46,262
 $39,898
 $133,848
 Year Ended December 31,
 2018 2017 2016
Restricted shares and restricted unit awards granted1,563,287
 1,747,176
 1,442,940
Weighted average grant date fair value$26.86
 $32.02
 $23.91
Aggregate fair value of vested restricted shares and units awards$39,898
 $133,848
 $45,206

The aggregate intrinsic value of restricted units outstanding at December 31, 20182019 was $34.6 million, and the aggregate intrinsic value of restricted units vested and deferred was $1.1$67.0 million.


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Performance Awards
The Company also issues performance share and unit awards (“performance awards”) to eligible employees, which are earned based on the achievement of pre-established threshold, target and maximum goals over three-year performance periods. Final payouts depend on the level of achievement along with each employees continued service through the vest date. The grant date fair value of the performance awards is measured using a Monte Carlo simulation model, which incorporated the assumptions summarized in the table below. Expected volatility is based on the Company’s daily historical trading data of its common shares. The cumulative compensation expense recognized and unrecognized as of any reporting period date represents the adjusted estimate of performance shares and units that will ultimately be awarded, valued at their original grant date fair values.
 Year Ended December 31,
 2019 2018 2017
Expected volatility17.1% 16.2% %
Risk free interest rate2.5% 2.6% %

 Year Ended December 31,
 2018 2017 2016
Expected volatility16.2% % %
Risk free interest rate2.6% % %


 
Performance
Shares
 
Performance
Units
Unvested Shares:   
Unvested balance, beginning of year
 
Granted730,520
 12,993
Vested
 
Forfeited(15,192) 0
Unvested balance, end of year715,328
 12,993
    
Weighted Average Grant Date Fair Value:   
Unvested balance, beginning of year$
 $
Granted$24.77
 $24.71
Vested$
 $
Forfeited$24.65
 $0.00
Unvested balance, end of year$24.77
 $24.71
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Performance
Shares
 
Performance
Units
Unvested Shares:   
Unvested balance, beginning of year715,328
 12,993
Granted685,586
 10,774
Vested
 
Forfeited
 
Unvested balance, end of year1,400,914
 23,767
    
Weighted Average Grant Date Fair Value:   
Unvested balance, beginning of year$24.77
 $24.71
Granted$36.05
 $35.83
Vested$
 $
Forfeited$
 $
Unvested balance, end of year$30.29
 $29.75

The following table presents the weighted average grant date fair values of performance awards granted.
 Year Ended December 31,
 2019 2018 2017
Performance awards696,360
 743,513
 
Weighted average grant date fair value$36.05
 $24.77
 $
 Year Ended December 31,
 2018 2017 2016
Performance awards743,513
 
 
Weighted average grant date fair value$24.77
 $
 $

The issuance of share-based awards and amortization thereon has no effect on the Company’s consolidated shareholders’ equity.
 
Share-Based Compensation Expense
The following tables present pre-tax and after-tax share-based compensation expense recognized as well as the unrecognized compensation cost associated with unvested awards and the weighted average period over which it is expected to be recognized.
 Year Ended December 31,
 2019 2018 2017
Pre-Tax     
Stock options and SARs$12,866
 $16,272
 $18,536
Restricted share and unit awards38,988
 34,025
 46,884
Performance awards8,949
 4,414
 
ESPP3,045
 1,224
 2,443
Total$63,848
 $55,935
 $67,863
      
After-Tax     
Stock options and SARs$11,450
 $14,894
 $16,219
Restricted share and unit awards32,999
 29,044
 37,708
Performance awards8,295
 4,127
 
ESPP2,758
 1,114
 2,171
Total$55,502
 $49,179
 $56,098
 Year Ended December 31,
 2018 2017 2016
Pre-Tax     
Stock options and SARs$16,272
 $18,536
 $14,095
Restricted share and unit awards34,025
 46,884
 40,398
Performance awards4,414
 
 
ESPP1,224
 2,443
 2,089
Total$55,935
 $67,863
 $56,582
      
After-Tax     
Stock options and SARs$14,894
 $16,219
 $11,885
Restricted share and unit awards29,044
 37,708
 31,660
Performance awards4,127
 
 
ESPP1,114
 2,171
 1,861
Total$49,179
 $56,098
 $45,406

 December 31, 2019
 Stock Options and SARs 
Restricted Common
Shares and Units
 Performance Common Shares and Units
Unrecognized compensation cost related to unvested awards$12,823
 $39,606
 $8,893
Weighted average recognition period (years)1.23
 1.31
 1.06
 December 31, 2018
 Stock Options and SARs 
Restricted Common
Shares and Units
 Performance Common Shares and Units
Unrecognized compensation cost related to unvested awards$16,478
 $42,979
 $4,768
Weighted average recognition period (years)1.57
 1.44
 1.43

21.22.    Retirement Plans
For purposes of providing employees with retirement benefits, the Company maintains defined contribution retirement plans. Contributions are based on the participants’ eligible compensation. For 2019, 2018 2017 and 2016,2017, the Company expensed $44.8 million, $40.8 million $40.7 million and $30.6$40.7 million, respectively, related to these retirement plans.
22.23.    Legal Proceedings
The Company, in common with the insurance industry in general, is subject to litigation and arbitration in the normal course of its business. As of December 31, 2018,2019, the Company was not a party to any litigation or arbitration which is expected by management to have a material adverse effect on the Company’s results of operations and financial condition and liquidity.




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23.24.    Statutory Information
The Company’s insurance and reinsurance subsidiaries are subject to insurance and/or reinsurance laws and regulations in the jurisdictions in which they operate. These regulations include certain restrictions on the amount of dividends or other distributions available to shareholders without prior approval of the insurance regulatory authorities.
The actual and required statutory capital and surplus for the Company’s principal operating subsidiaries at December 31, 20182019 and 2017:2018:
December 31,December 31,
2018 20172019 2018
Actual capital and surplus (1):      
Bermuda$11,605,652
 $9,841,225
$13,511,729
 $11,605,652
Ireland653,055
 543,929
721,439
 653,055
United States4,195,477
 4,850,148
4,440,848
 4,195,477
United Kingdom386,892
 320,857
748,276
 386,892
Canada59,096
 63,390
61,351
 59,096
      
Required capital and surplus:      
Bermuda$4,718,345
 $3,761,939
$5,492,968
 $4,718,345
Ireland429,117
 383,966
542,703
 429,117
United States1,783,268
 1,816,919
1,697,640
 1,783,268
United Kingdom271,864
 270,242
349,328
 271,864
Canada33,189
 35,846
32,763
 33,189
(1)Such amounts include ownership interests in affiliated insurance and reinsurance subsidiaries.

There were no state-prescribed or permitted regulatory accounting practices for any of the Company’s insurance or reinsurance entities that resulted in reported statutory surplus that differed from that which would have been reported under the prescribed practices of the respective regulatory authorities, including the National Association of Insurance Commissioners. The differences between statutory financial statements and statements prepared in accordance with GAAP vary by jurisdiction, however, with the primary differences being that statutory financial statements may not reflect deferred acquisition costs, certain net deferred tax assets, goodwill and intangible assets, unrealized appreciation or depreciation on debt securities and certain unauthorized reinsurance recoverables and include contingency reserves.
 
The statutory net income (loss) for the Company’s principal operating subsidiaries for 2019, 2018 2017 and 20162017 was as follows:
 Year Ended December 31,
 2019 2018 2017
Statutory net income (loss):     
Bermuda$1,876,416
 $919,554
 $881,665
Ireland26,367
 29,223
 (14,438)
United States481,188
 292,831
 500,412
United Kingdom(17,423) (18,467) (33,257)
Canada(1,023) 2,525
 158
 Year Ended December 31,
 2018 2017 2016
Statutory net income (loss):     
Bermuda$919,554
 $881,665
 $886,492
Ireland29,223
 (14,438) 26,935
United States292,831
 500,412
 67,826
United Kingdom(18,467) (33,257) (7,512)
Canada2,525
 158
 621

Bermuda
The Company has two Bermuda based subsidiaries: Arch Re Bermuda, a Class 4 insurer and long-term insurer, and Watford, Re, a Class 4 insurer. Under the Bermuda Insurance Act 1978 (the “Insurance Act”), these subsidiaries are required to maintain minimum statutory capital and surplus equal to the greater of a minimum solvency margin and the enhanced capital requirement as determined by the Bermuda Monetary Authority (“BMA”). The enhanced capital requirement is calculated based on the Bermuda Solvency Capital Requirement model, a risk-based model that takes into account the risk characteristics of different aspects of the company’s business. At December 31, 20182019 and 2017,2018, all such requirements were met.


The ability of these subsidiaries to pay dividends is limited under Bermuda law and regulations. Under the Insurance Act, Arch Re Bermuda is restricted with respect to the payment of dividends. Arch Re Bermuda is prohibited from declaring or paying in any financial year dividends of more than 25% of its total statutory capital and surplus (as shown on its previous financial year’s statutory balance sheet) unless it files, at least seven days before payment of such dividends, with the Bermuda Monetary Authority an affidavit stating that it will continue to meet the required margins following the declaration of those dividends. Accordingly, Arch Re Bermuda can pay approximately $2.62$3.10 billion to Arch Capital during 20192020 without providing an affidavit to the BMA.
Ireland
The Company has two2 Irish subsidiaries: Arch Re Europe, an authorized life and non-life reinsurer, and Arch MI Europe,Insurance (EU), an authorized non-life insurer. Irish authorized reinsurers and insurers, such as Arch Re Europe and Arch MI Europe,Insurance (EU), are also subject to the general body of Irish laws and regulations including the provisions of the Companies Act 2014. Arch Re Europe and Arch MI EuropeInsurance (EU) are subject to the supervision of the Central Bank of Ireland (“CBOI”) and must comply with Irish insurance acts and regulations as well as with directions and guidance issued by the CBOI. These subsidiaries are




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required to maintain a minimum level of capital. At December 31, 20182019 and 2017,2018, these requirements were met.


The amount of dividends these subsidiaries are permitted to declare is limited to accumulated, realized profits, so far as not previously utilized by distribution or capitalization, less its accumulated, realized losses, so far as not previously written off in a reduction or reorganization of capital duly made. The solvency and capital requirements must still be met following any distribution. Dividends or distributions, if any, made by Arch Re Europe would result in an increase in available capital at Arch Re Bermuda.


United States
The Company’s U.S. insurance and reinsurance subsidiaries are subject to insurance laws and regulations in the jurisdictions in which they operate. The ability of the Company’s regulated insurance subsidiaries to pay dividends or make distributions is dependent on their ability to meet applicable regulatory standards. These regulations include restrictions that limit the amount of dividends or other distributions, such as loans or cash advances, available to shareholders without prior approval of the insurance regulatory authorities.


Dividends or distributions, if any, made by Arch Re U.S. would result in an increase in available capital at Arch-U.S., the Company’s U.S. holding company. Arch Re U.S. can declare a maximum of approximately $123.2$130.2 million of dividends during 20192020 subject to the approval of the Commissioner of the Delaware Department of Insurance.
Arch Mortgage Insurance Company and United Guaranty Residential Insurance Company have each been approved as an eligible mortgage insurer by Fannie Mae and Freddie Mac, subject to maintaining certain ongoing requirements (“eligible mortgage insurers”). In April 2015, the GSEs published comprehensive, revised requirements, known as the Private Mortgage Insurer Eligibility Requirements or “PMIERs.” As clarified and revised by the Guidance Letters issued by the GSEs in December 2016 and March 2017, the PMIERs apply to the Company’s eligible mortgage insurers, but do not apply to Arch Mortgage Guaranty Company, which is not GSE-approved.
The amount of assets required to satisfy the revised financial requirements of the PMIERs at any point in time will be affected by many factors, including macro-economic conditions, the size and composition of our eligible mortgage insurers’ mortgage insurance portfolio at the point in time, and the amount of risk ceded to reinsurers that may be deducted in our calculation of “minimum required assets.”
The Company’s U.S. mortgage insurance subsidiaries are subject to detailed regulation by their domiciliary and primary regulators, the Wisconsin Office of the Commissioner of Insurance (“Wisconsin OCI”) for Arch Mortgage Insurance
 
Company and Arch Mortgage Guaranty Company, the North Carolina Department of Insurance (“NC DOI”) for United Guaranty Residential Insurance Company, and by state insurance departments in each state in which they are licensed. As mandated by state insurance laws, mortgage insurers are generally mono-line companies restricted to writing a single type of insurance business, such as mortgage insurance business. Each company is subject to either Wisconsin or North Carolina statutory requirements as to payment of dividends. Generally, both Wisconsin and North Carolina law precludes any dividend before giving at least 30 days’ notice to the Wisconsin OCI or NC DOI, as applicable, and prohibits paying any dividend unless it is fair and reasonable to do so. In addition, the state regulators and the GSEs limit or restrict our eligible mortgage insurers’ ability to pay stockholder dividends or otherwise return capital to shareholders. Under respective states law, our U.S. mortgage subsidiaries can declare a maximum of approximately $324.4$338.9 million of ordinary dividends during 2019.in 2020, however, dividend capacity is limited by the respective companies unassigned surplus amounts.  As of December 31, 2019, the combined unassigned surplus amount of our U.S. mortgage insurance entities would limit the dividend capacity to $177.8 million. In certain instances, approval by the GSEs would be required for dividends or other forms of return of capital to shareholders due to the requirements under PMIERs, including the minimum required assets imposed on our eligible mortgage insurers by the GSEs. Such dividend would result in an increase in available capital at Arch U.S. MI Holdings Inc., a subsidiary of Arch-U.S.
Mortgage insurance companies licensed in Wisconsin or North Carolina are required to establish contingency loss reserves for purposes of statutory accounting in an amount equal to at least 50% of net earned premiums. These amounts generally cannot be withdrawn for a period of 10 years and are separate liabilities for statutory accounting purposes, which affects the ability to pay dividends. However, with prior regulatory approval, a mortgage insurance company may make early withdrawals from the contingency reserve when incurred losses exceed 35% of net premiums earned in a calendar year.
Under Wisconsin and North Carolina law, as well as that of 14 other states, a mortgage insurer must maintain a minimum amount of statutory capital relative to its risk in force in order for the mortgage insurer to continue to write new business. While formulations of minimum capital vary in certain jurisdictions, the most common measure applied allows for a maximum risk-to-capital ratio of 25 to 1. Wisconsin and North Carolina both require a mortgage insurer to maintain a “minimum policyholder position” calculated in accordance with their respective regulations. Policyholders' position consists primarily of statutory policyholders' surplus plus the statutory contingency reserve, less ceded reinsurance. While the statutory contingency reserve is reported as a liability on the statutory balance sheet, for risk-to-capital ratio calculations, it is included as capital for purposes of statutory capital.




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United Kingdom
The Prudential Regulation Authority (“PRA”) and the Financial Conduct Authority (“FCA”) regulate insurance and reinsurance companies and the FCA regulates firms carrying on insurance mediation activities operating in the U.K., both under the Financial Services and Markets Act 2000. The Company’s European insurance operations are conducted on two platforms:through Arch Insurance Company Europe and(U.K.), Arch Syndicate 2012.2012 and Barbican Syndicate 1955. Arch Syndicate 2012 has one corporate member, Arch Syndicate Investments Ltd. (“ASIL”), and is managed by Arch Underwriting at Lloyd’s Ltd (“AUAL”). The syndicates managed by BMAL have 11 corporate members. BMAL is the managing agent of Barbican Syndicate 1955. Arch Syndicate 2012 and Barbican Syndicate 1955 provide access to Lloyd’s extensive distribution network and worldwide licenses. All U.K. companies are also subject to a range of statutory provisions, including the laws and regulations of the Companies Acts 2006 (as amended) (the “U.K. Companies Acts”).
Arch Insurance Company Europe and(U.K.), AUAL (on behalf of itself, Arch Syndicate 2012 and ASIL) and BMAL must maintain a margin of solvency at all times under the Solvency II Directive from the European Insurance and Occupational Pensions Authority. The regulations stipulate that insurers are required to maintain the minimum capital requirement and solvency capital requirement at all times. The capital requirements are calculated by reference to standard formulae defined in Solvency II. At December 31, 20182019 and 2017,2018, our subsidiaries were in compliance with these requirements.


As a corporate membermembers of Lloyd’s, ASIL isand others are subject to the oversight of the Council of Lloyd’s. The capital required to support a Syndicate’s underwriting capacity, or funds at Lloyd’s, is assessed annually and is determined by Lloyd’s in accordance with the capital adequacy rules established by the PRA. The Company has provided capital to support the underwriting of Arch Syndicate 2012 and Barbican Syndicate 1955 in the form of pledged assets provided by Arch Re Bermuda. The amount which the Company provides as funds at Lloyd’s is not available for distribution to the Company for the payment of dividends. Lloyd’s is supervised by the PRA and required to implement certain rules prescribed by the PRA under the Lloyd’s Act of 1982 regarding the operation of the Lloyd’s market. With respect to managing agents and corporate members, Lloyd’s prescribes certain minimum standards relating to management and control, solvency and other
requirements and monitors managing agents’ compliance with such standards.
Under U.K. law, all U.K. companies are restricted from declaring a dividend to their shareholders unless they have “profits available for distribution.” The calculation as to whether a company has sufficient profits is based on its accumulated realized profits minus its accumulated realized losses. U.K. insurance regulatory laws do not prohibit the payment of dividends, but the PRA or FCA, as applicable, requires that insurance companies and insurance intermediaries maintain certain solvency margins and may restrict the payment of a dividend by Arch Insurance Company Europe,(U.K.), AUAL, ASIL and ASIL.BMAL.
Canada
Arch Insurance Canada and the Canadian branch of Arch Re U.S. (“Arch Re Canada”) are subject to federal, as well as provincial and territorial, regulation in Canada. The Office of the Superintendent of Financial Institutions (“OSFI”) is the federal regulatory body that, under the Insurance Companies Act (Canada), regulates federal Canadian and non-Canadian insurance companies operating in Canada. Arch Insurance Canada and Arch Re Canada are subject to regulation in the provinces and territories in which they underwrite insurance/reinsurance, and the primary goal of insurance/reinsurance regulation at the provincial and territorial levels is to govern the market conduct of insurance/reinsurance companies. Arch Insurance Canada is licensed to carry on insurance business by OSFI and in each province and territory. Arch Re Canada is licensed to carry-on reinsurance business by OSFI and in the provinces of Ontario and Quebec.
Under the Insurance Companies Act (Canada), Arch Insurance Canada is required to maintain an adequate amount of capital in Canada, calculated in accordance with a test promulgated by OSFI called the Minimum Capital Test (“MCT”), and Arch Re Canada is required to maintain an adequate margin of assets over liabilities in Canada, calculated in accordance with a test promulgated by OSFI called the Branch Adequacy of Assets Test. Dividends or distributions, if any, made by Arch Insurance Canada would result in an increase in available capital at Arch Insurance Company (see “—United States” section).






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24.25.    Unaudited Condensed Quarterly Financial Information
The following table summarizes the 20182019 and 20172018 unaudited condensed quarterly financial information:
 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
Year Ended December 31, 2019       
Net premiums written$1,455,453
 $1,613,457
 $1,444,898
 $1,525,259
Net premiums earned1,515,882
 1,438,023
 1,463,727
 1,368,866
Net investment income154,263
 161,488
 155,038
 156,949
Net realized gains (losses)41,474
 62,518
 120,806
 141,565
Net impairment losses recognized in earnings(644) (1,163) (49) (1,309)
Underwriting income (loss)251,421
 231,262
 293,134
 260,148
Net income (loss) attributable to Arch326,384
 392,453
 468,954
 448,528
Preferred dividends(10,403) (10,403) (10,403) (10,403)
Net income (loss) available to Arch common shareholders315,981
 382,050
 458,551
 438,125
Net income (loss) per common share -- basic$0.78
 $0.95
 $1.14
 $1.09
Net income (loss) per common share -- diluted$0.76
 $0.92
 $1.12
 $1.07
        
Year Ended December 31, 2018       
Net premiums written$1,301,754
 $1,333,553
 $1,298,896
 $1,412,544
Net premiums earned1,369,435
 1,290,878
 1,336,763
 1,234,899
Net investment income157,217
 144,024
 135,668
 126,724
Net realized gains (losses)(166,030) (51,705) (76,611) (110,998)
Net impairment losses recognized in earnings(1,705) (492) (470) (162)
Underwriting income (loss)166,955
 234,581
 235,465
 236,997
Net income (loss) attributable to Arch136,494
 227,408
 243,646
 150,423
Preferred dividends(10,403) (10,402) (10,403) (10,437)
Net income (loss) available to Arch common shareholders126,091
 217,006
 233,243
 137,276
Net income (loss) per common share -- basic$0.31
 $0.54
 $0.58
 $0.34
Net income (loss) per common share -- diluted$0.31
 $0.53
 $0.56
 $0.33

 
Fourth
Quarter
 
Third
Quarter
 
Second
Quarter
 
First
Quarter
Year Ended December 31, 2018       
Net premiums written$1,301,754
 $1,333,553
 $1,298,896
 $1,412,544
Net premiums earned1,369,435
 1,290,878
 1,336,763
 1,234,899
Net investment income157,217
 144,024
 135,668
 126,724
Net realized gains (losses)(166,030) (51,705) (76,611) (110,998)
Net impairment losses recognized in earnings(1,705) (492) (470) (162)
Underwriting income (loss)166,955
 234,581
 235,465
 236,997
Net income (loss) attributable to Arch136,494
 227,408
 243,646
 150,423
Preferred dividends(10,403) (10,402) (10,403) (10,437)
Net income (loss) available to Arch common shareholders126,091
 217,006
 233,243
 137,276
Net income (loss) per common share -- basic$0.31
 $0.54
 $0.58
 $0.34
Net income (loss) per common share -- diluted$0.31
 $0.53
 $0.56
 $0.33
        
Year Ended December 31, 2017       
Net premiums written$1,111,015
 $1,325,403
 $1,248,695
 $1,276,260
Net premiums earned1,224,755
 1,261,886
 1,240,874
 1,117,017
Net investment income125,415
 116,459
 111,124
 117,874
Net realized gains (losses)26,978
 66,275
 21,735
 34,153
Net impairment losses recognized in earnings(1,723) (1,878) (1,730) (1,807)
Underwriting income (loss)182,111
 (142,172) 195,419
 212,072
Net income (loss) attributable to Arch214,640
 (33,656) 185,167
 253,127
Preferred dividends(11,105) (12,369) (11,349) (11,218)
Net income (loss) available to Arch common shareholders203,535
 (52,760) 173,818
 241,909
Net income (loss) per common share -- basic$0.50
 $(0.13) $0.43
 $0.60
Net income (loss) per common share -- diluted$0.49
 $(0.13) $0.42
 $0.58




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25.26.    Guarantor Financial Information
The following tables present condensed consolidating balance sheets at December 31, 20182019 and 20172018 and condensed consolidating statements of income, comprehensive income and cash flows for 2019, 2018 2017 and 20162017 for Arch Capital, Arch-U.S., a 100% owned subsidiary of Arch Capital, and Arch Capital's other subsidiaries.
December 31, 2018December 31, 2019
Condensed Consolidating Balance SheetArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital ConsolidatedArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Assets                  
Total investments$104
 $452,674
 $21,307,206
 $(14,700) $21,745,284
$42
 $692,606
 $23,748,432
 $(38,834) $24,402,246
Cash6,125
 5,940
 634,491
 
 646,556
18,113
 54,518
 653,599
 
 726,230
Investments in subsidiaries9,735,256
 3,999,243
 
 (13,734,499) 
11,786,861
 4,347,806
 
 (16,134,667) 
Due from subsidiaries and affiliates9
 2
 1,802,686
 (1,802,697) 
17
 200,635
 1,901,865
 (2,102,517) 
Premiums receivable
 
 1,834,389
 (535,239) 1,299,150

 
 2,547,130
 (768,413) 1,778,717
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses
 
 8,618,660
 (5,699,288) 2,919,372

 
 9,711,773
 (5,364,957) 4,346,816
Contractholder receivables
 
 2,079,111
 
 2,079,111

 
 2,119,460
 
 2,119,460
Ceded unearned premiums
 
 1,730,262
 (754,793) 975,469

 
 2,230,164
 (995,481) 1,234,683
Deferred acquisition costs
 
 618,535
 (48,961) 569,574

 
 675,917
 (42,517) 633,400
Goodwill and intangible assets
 
 634,920
 
 634,920

 
 738,083
 
 738,083
Other assets12,588
 80,949
 1,466,438
 (211,082) 1,348,893
20,461
 32,187
 1,981,598
 (128,520) 1,905,726
Total assets$9,754,082
 $4,538,808
 $40,726,698
 $(22,801,259) $32,218,329
$11,825,494
 $5,327,752
 $46,308,021
 $(25,575,906) $37,885,361
                  
Liabilities                  
Reserve for losses and loss adjustment expenses$
 $
 $17,345,142
 $(5,491,845) $11,853,297
$
 $
 $19,028,538
 $(5,136,696) $13,891,842
Unearned premiums
 
 4,508,429
 (754,793) 3,753,636

 
 5,335,030
 (995,481) 4,339,549
Reinsurance balances payable
 
 928,346
 (535,239) 393,107

 
 1,435,485
 (768,413) 667,072
Contractholder payables
 
 2,079,111
 
 2,079,111

 
 2,119,460
 
 2,119,460
Collateral held for insured obligations
 
 236,630
 
 236,630

 
 206,698
 

 206,698
Senior notes297,150
 494,723
 941,655
 
 1,733,528
297,254
 494,831
 1,114,541
 (35,000) 1,871,626
Revolving credit agreement borrowings
 
 455,682
 
 455,682

 
 484,287
 
 484,287
Due to subsidiaries and affiliates
 536,805
 1,265,892
 (1,802,697) 

 536,805
 1,565,712
 (2,102,517) 
Other liabilities17,105
 26,270
 1,699,768
 (467,484) 1,275,659
30,869
 33,267
 2,324,793
 (399,654) 1,989,275
Total liabilities314,255
 1,057,798
 29,460,655
 (9,052,058) 21,780,650
328,123
 1,064,903
 33,614,544
 (9,437,761) 25,569,809
                  
Redeemable noncontrolling interests
 
 220,992
 (14,700) 206,292

 
 58,882
 (3,478) 55,404
                  
Shareholders' Equity                  
Total shareholders' equity available to Arch9,439,827
 3,481,010
 10,253,491
 (13,734,501) 9,439,827
11,497,371
 4,262,849
 11,871,818
 (16,134,667) 11,497,371
Non-redeemable noncontrolling interests
 
 791,560
 
 791,560

 
 762,777
 
 762,777
Total shareholders' equity9,439,827
 3,481,010
 11,045,051
 (13,734,501) 10,231,387
11,497,371
 4,262,849
 12,634,595
 (16,134,667) 12,260,148
                  
Total liabilities, noncontrolling interests and shareholders' equity$9,754,082
 $4,538,808
 $40,726,698
 $(22,801,259) $32,218,329
$11,825,494
 $5,327,752
 $46,308,021
 $(25,575,906) $37,885,361






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 December 31, 2018
Condensed Consolidating Balance SheetArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Assets         
Total investments$104
 $452,674
 $21,307,206
 $(14,700) $21,745,284
Cash6,125
 5,940
 634,491
 
 646,556
Investments in subsidiaries9,735,256
 3,999,243
 
 (13,734,499) 
Due from subsidiaries and affiliates9
 2
 1,802,686
 (1,802,697) 
Premiums receivable
 
 1,834,389
 (535,239) 1,299,150
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses
 
 8,618,660
 (5,699,288) 2,919,372
Contractholder receivables
 
 2,079,111
 
 2,079,111
Ceded unearned premiums
 
 1,730,262
 (754,793) 975,469
Deferred acquisition costs
 
 618,535
 (48,961) 569,574
Goodwill and intangible assets
 
 634,920
 
 634,920
Other assets12,588
 80,949
 1,466,438
 (211,082) 1,348,893
Total assets$9,754,082
 $4,538,808
 $40,726,698
 $(22,801,259) $32,218,329
          
Liabilities         
Reserve for losses and loss adjustment expenses$
 $
 $17,345,142
 $(5,491,845) $11,853,297
Unearned premiums
 
 4,508,429
 (754,793) 3,753,636
Reinsurance balances payable
 
 928,346
 (535,239) 393,107
Contractholder payables
 
 2,079,111
 
 2,079,111
Collateral held for insured obligations
 
 236,630
 
 236,630
Senior notes297,150
 494,723
 941,655
 
 1,733,528
Revolving credit agreement borrowings
 
 455,682
 
 455,682
Due to subsidiaries and affiliates
 536,805
 1,265,892
 (1,802,697) 
Other liabilities17,105
 26,270
 1,699,768
 (467,484) 1,275,659
Total liabilities314,255
 1,057,798
 29,460,655
 (9,052,058) 21,780,650
          
Redeemable noncontrolling interests
 
 220,992
 (14,700) 206,292
          
Shareholders' Equity         
Total shareholders' equity available to Arch9,439,827
 3,481,010
 10,253,491
 (13,734,501) 9,439,827
Non-redeemable noncontrolling interests
 
 791,560
 
 791,560
Total shareholders' equity9,439,827
 3,481,010
 11,045,051
 (13,734,501) 10,231,387
          
Total liabilities, noncontrolling interests and shareholders' equity$9,754,082
 $4,538,808
 $40,726,698
 $(22,801,259) $32,218,329

 December 31, 2017
Condensed Consolidating Balance SheetArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Assets         
Total investments$96,540
 $46,281
 $21,711,891
 $(14,700) $21,840,012
Cash9,997
 30,380
 565,822
 
 606,199
Investments in subsidiaries9,396,621
 4,097,765
 
 (13,494,386) 
Due from subsidiaries and affiliates394
 
 1,828,864
 (1,829,258) 
Premiums receivable
 
 2,967,701
 (1,832,452) 1,135,249
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses
 
 8,442,192
 (5,902,049) 2,540,143
Contractholder receivables
 
 1,978,414
 
 1,978,414
Ceded unearned premiums
 
 2,165,789
 (1,239,178) 926,611
Deferred acquisition costs
 
 693,053
 (157,229) 535,824
Goodwill and intangible assets
 
 652,611
 
 652,611
Other assets13,176
 49,585
 1,860,505
 (86,671) 1,836,595
Total assets$9,516,728
 $4,224,011
 $42,866,842
 $(24,555,923) $32,051,658
          
Liabilities         
Reserve for losses and loss adjustment expenses$
 $
 $17,236,401
 $(5,852,609) $11,383,792
Unearned premiums
 
 4,861,491
 (1,239,177) 3,622,314
Reinsurance balances payable
 
 2,155,947
 (1,832,451) 323,496
Contractholder payables
 
 1,978,414
 
 1,978,414
Collateral held for insured obligations
 
 240,183
 
 240,183
Deposit accounting liabilities
 
 
 
 
Senior notes297,053
 494,621
 941,210
 
 1,732,884
Revolving credit agreement borrowings
 
 816,132
 
 816,132
Due to subsidiaries and affiliates235
 536,919
 1,292,104
 (1,829,258) 
Other liabilities22,838
 29,317
 1,949,696
 (293,343) 1,708,508
Total liabilities320,126
 1,060,857
 31,471,578
 (11,046,838) 21,805,723
          
Redeemable noncontrolling interests
 
 220,622
 (14,700) 205,922
          
Shareholders' Equity         
Total shareholders' equity available to Arch9,196,602
 3,163,154
 10,331,231
 (13,494,385) 9,196,602
Non-redeemable noncontrolling interests
 
 843,411
 
 843,411
Total shareholders' equity9,196,602
 3,163,154
 11,174,642
 (13,494,385) 10,040,013
          
Total liabilities, noncontrolling interests and shareholders' equity$9,516,728
 $4,224,011
 $42,866,842
 $(24,555,923) $32,051,658






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Year Ended December 31, 2018Year Ended December 31, 2019
Condensed Consolidating Statement of Income and Comprehensive IncomeArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital ConsolidatedArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Revenues                  
Net premiums earned$
 $
 $5,231,975
 $
 $5,231,975
$
 $
 $5,786,498
 $
 $5,786,498
Net investment income49
 3,902
 649,394
 (89,712) 563,633
212
 14,270
 706,038
 (92,782) 627,738
Net realized gains (losses)29
 (2,676) (410,014) 7,317
 (405,344)
 25,313
 352,771
 (11,721) 366,363
Net impairment losses recognized in earnings
 
 (2,829) 
 (2,829)
 
 (3,165) 
 (3,165)
Other underwriting income
 
 15,073
 
 15,073

 
 24,861
 
 24,861
Equity in net income (loss) of investments accounted for using the equity method
 
 45,641
 
 45,641

 779
 122,893
 
 123,672
Other income (loss)1,918
 
 501
 
 2,419
(762) 
 2,995
 
 2,233
Total revenues1,996
 1,226
 5,529,741
 (82,395) 5,450,568
(550) 40,362
 6,992,891
 (104,503) 6,928,200
                  
Expenses                  
Losses and loss adjustment expenses
 
 2,890,106
 
 2,890,106

 
 3,133,452
 
 3,133,452
Acquisition expenses
 
 805,135
 
 805,135

 
 840,945
 
 840,945
Other operating expenses
 
 677,809
 
 677,809

 
 800,997
 
 800,997
Corporate expenses64,279
 2,422
 12,293
 
 78,994
62,701
 7,221
 10,189
 
 80,111
Amortization of intangible assets
 
 105,670
 
 105,670

 
 82,104
 
 82,104
Interest expense22,147
 48,103
 138,672
 (88,438) 120,484
22,154
 47,951
 142,662
 (91,895) 120,872
Net foreign exchange (gains) losses30
 
 (59,607) (9,825) (69,402)1
 
 22,188
 (1,580) 20,609
Total expenses86,456
 50,525
 4,570,078
 (98,263) 4,608,796
84,856
 55,172
 5,032,537
 (93,475) 5,079,090
                  
Income (loss) before income taxes(84,460) (49,299) 959,663
 15,868
 841,772
(85,406) (14,810) 1,960,354
 (11,028) 1,849,110
Income tax (expense) benefit
 13,314
 (127,265) 
 (113,951)
 3,696
 (159,506) 
 (155,810)
Income (loss) before equity in net income of subsidiaries(84,460) (35,985) 832,398
 15,868
 727,821
(85,406) (11,114) 1,800,848
 (11,028) 1,693,300
Equity in net income of subsidiaries842,431
 388,260
 
 (1,230,691) 
1,721,725
 564,657
 
 (2,286,382) 
Net income757,971
 352,275
 832,398
 (1,214,823) 727,821
1,636,319
 553,543
 1,800,848
 (2,297,410) 1,693,300
Net (income) loss attributable to noncontrolling interests
 
 28,875
 1,275
 30,150

 
 (57,868) 887
 (56,981)
Net income available to Arch757,971
 352,275
 861,273
 (1,213,548) 757,971
1,636,319
 553,543
 1,742,980
 (2,296,523) 1,636,319
Preferred dividends(41,645) 
 
 
 (41,645)(41,612) 
 
 
 (41,612)
Loss on redemption of preferred shares

(2,710) 
 
 
 (2,710)
Net income available to Arch common shareholders$713,616
 $352,275
 $861,273
 $(1,213,548) $713,616
$1,594,707
 $553,543
 $1,742,980
 $(2,296,523) $1,594,707
                  
Comprehensive income (loss) available to Arch$611,003
 $292,973
 $730,828
 $(1,023,801) $611,003
$2,027,129
 $751,210
 $2,124,455
 $(2,875,665) $2,027,129




ARCH CAPITAL16916420182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Year Ended December 31, 2017Year Ended December 31, 2018
Condensed Consolidating Statement of Income and Comprehensive IncomeArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital ConsolidatedArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Revenues                  
Net premiums earned$
 $
 $4,844,532
 $
 $4,844,532
$
 $
 $5,231,975
 $
 $5,231,975
Net investment income243
 1,420
 559,963
 (90,754) 470,872
49
 3,902
 649,394
 (89,712) 563,633
Net realized gains (losses)
 
 149,141
 
 149,141
29
 (2,676) (410,014) 7,317
 (405,344)
Net impairment losses recognized in earnings
 
 (7,138) 
 (7,138)
 
 (2,829) 
 (2,829)
Other underwriting income
 
 30,253
 
 30,253

 
 15,073
 
 15,073
Equity in net income (loss) of investments accounted for using the equity method
 
 142,286
 
 142,286

 
 45,641
 
 45,641
Other income (loss)(482) 
 (2,089) 
 (2,571)1,918
 
 501
 
 2,419
Total revenues(239) 1,420
 5,716,948
 (90,754) 5,627,375
1,996
 1,226
 5,529,741
 (82,395) 5,450,568
                  
Expenses                  
Losses and loss adjustment expenses
 
 2,967,446
 
 2,967,446

 
 2,890,106
 
 2,890,106
Acquisition expenses
 
 775,458
 
 775,458

 
 805,135
 
 805,135
Other operating expenses
 
 684,451
 
 684,451

 
 677,809
 
 677,809
Corporate expenses67,450
 4,152
 12,150
 
 83,752
64,279
 2,422
 12,293
 
 78,994
Amortization of intangible assets
 
 125,778
 
 125,778

 
 105,670
 
 105,670
Interest expense23,560
 47,993
 135,342
 (89,464) 117,431
22,147
 48,103
 138,672
 (88,438) 120,484
Net foreign exchange (gains) losses2
 
 68,900
 46,880
 115,782
30
 
 (59,607) (9,825) (69,402)
Total expenses91,012
 52,145
 4,769,525
 (42,584) 4,870,098
86,456
 50,525
 4,570,078
 (98,263) 4,608,796
                  
Income (loss) before income taxes(91,251) (50,725) 947,423
 (48,170) 757,277
(84,460) (49,299) 959,663
 15,868
 841,772
Income tax (expense) benefit
 10,333
 (137,901) 
 (127,568)
 13,314
 (127,265) 
 (113,951)
Income (loss) before equity in net income of subsidiaries(91,251) (40,392) 809,522
 (48,170) 629,709
(84,460) (35,985) 832,398
 15,868
 727,821
Equity in net income of subsidiaries710,529
 303,991
 
 (1,014,520) 
842,431
 388,260
 
 (1,230,691) 
Net income619,278
 263,599
 809,522
 (1,062,690) 629,709
757,971
 352,275
 832,398
 (1,214,823) 727,821
Net (income) loss attributable to noncontrolling interests
 
 (11,721) 1,290
 (10,431)
 
 28,875
 1,275
 30,150
Net income available to Arch619,278
 263,599
 797,801
 (1,061,400) 619,278
757,971
 352,275
 861,273
 (1,213,548) 757,971
Preferred dividends(46,041) 
 
 
 (46,041)(41,645) 
 
 
 (41,645)
Loss on repurchase of preferred shares(6,735) 
 
 
 (6,735)(2,710) 
 
 
 (2,710)
Net income available to Arch common shareholders$566,502
 $263,599
 $797,801
 $(1,061,400) $566,502
$713,616
 $352,275
 $861,273
 $(1,213,548) $713,616
                  
Comprehensive income (loss) available to Arch$851,863
 $288,752
 $983,475
 $(1,272,227) $851,863
$611,003
 $292,973
 $730,828
 $(1,023,801) $611,003




ARCH CAPITAL17016520182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






 Year Ended December 31, 2017
Condensed Consolidating Statement of Income and Comprehensive IncomeArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Revenues         
Net premiums earned$
 $
 $4,844,532
 $
 $4,844,532
Net investment income243
 1,420
 559,963
 (90,754) 470,872
Net realized gains (losses)
 
 149,141
 
 149,141
Net impairment losses recognized in earnings
 
 (7,138) 
 (7,138)
Other underwriting income
 
 30,253
 
 30,253
Equity in net income (loss) of investments accounted for using the equity method
 
 142,286
 
 142,286
Other income (loss)(482) 
 (2,089) 
 (2,571)
Total revenues(239) 1,420
 5,716,948
 (90,754) 5,627,375
          
Expenses         
Losses and loss adjustment expenses
 
 2,967,446
 
 2,967,446
Acquisition expenses
 
 775,458
 
 775,458
Other operating expenses
 
 684,451
 
 684,451
Corporate expenses67,450
 4,152
 12,150
 
 83,752
Amortization of intangible assets
 
 125,778
 
 125,778
Interest expense23,560
 47,993
 135,342
 (89,464) 117,431
Net foreign exchange (gains) losses2
 
 68,900
 46,880
 115,782
Total expenses91,012
 52,145
 4,769,525
 (42,584) 4,870,098
          
Income (loss) before income taxes(91,251) (50,725) 947,423
 (48,170) 757,277
Income tax (expense) benefit
 10,333
 (137,901) 
 (127,568)
Income (loss) before equity in net income of subsidiaries(91,251) (40,392) 809,522
 (48,170) 629,709
Equity in net income of subsidiaries710,529
 303,991
 
 (1,014,520) 
Net income619,278
 263,599
 809,522
 (1,062,690) 629,709
Net (income) loss attributable to noncontrolling interests
 
 (11,721) 1,290
 (10,431)
Net income available to Arch619,278
 263,599
 797,801
 (1,061,400) 619,278
Preferred dividends(46,041) 
 
 
 (46,041)
Loss on repurchase of preferred shares(6,735) 
 
 
 (6,735)
Net income available to Arch common shareholders$566,502
 $263,599
 $797,801
 $(1,061,400) $566,502
          
Comprehensive income (loss) available to Arch$851,863
 $288,752
 $983,475
 $(1,272,227) $851,863

 Year Ended December 31, 2016
Condensed Consolidating Statement of Income and Comprehensive IncomeArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Revenues         
Net premiums earned$
 $
 $3,884,822
 $
 $3,884,822
Net investment income694
 3,162
 393,114
 (30,228) 366,742
Net realized gains (losses)12
 5
 137,569
 
 137,586
Net impairment losses recognized in earnings
 
 (30,442) 
 (30,442)
Other underwriting income
 
 73,671
 (16,498) 57,173
Equity in net income (loss) of investments accounted for using the equity method
 
 48,475
 
 48,475
Other income (loss)180
 
 (980) 
 (800)
Total revenues886
 3,167
 4,506,229
 (46,726) 4,463,556
          
Expenses         
Losses and loss adjustment expenses
 
 2,185,599
 
 2,185,599
Acquisition expenses
 
 667,625
 
 667,625
Other operating expenses
 
 624,090
 
 624,090
Corporate expenses49,540
 1,940
 30,266
 
 81,746
Amortization of intangible assets
 
 19,343
 
 19,343
Interest expense23,769
 27,165
 60,757
 (45,439) 66,252
Net foreign exchange (gains) losses
 
 (17,217) (19,434) (36,651)
Total expenses73,309
 29,105
 3,570,463
 (64,873) 3,608,004
          
Income (loss) before income taxes(72,423) (25,938) 935,766
 18,147
 855,552
Income tax (expense) benefit
 8,676
 (40,050) 
 (31,374)
Income (loss) before equity in net income of subsidiaries(72,423) (17,262) 895,716
 18,147
 824,178
Equity in net income of subsidiaries765,161
 54,497
 
 (819,658) 
Net income692,738
 37,235
 895,716
 (801,511) 824,178
Net (income) loss attributable to noncontrolling interests
 
 (132,727) 1,287
 (131,440)
Net income available to Arch692,738
 37,235
 762,989
 (800,224) 692,738
Preferred dividends(28,070) 
 
 
 (28,070)
Net income available to Arch common shareholders$664,668
 $37,235
 $762,989
 $(800,224) $664,668
          
Comprehensive income (loss) available to Arch$594,699
 $13,444
 $684,447
 $(697,891) $594,699




ARCH CAPITAL17116620182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






Year Ended December 31, 2018Year Ended December 31, 2019
Condensed Consolidating Statement
of Cash Flows
Arch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital ConsolidatedArch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Operating Activities                  
Net Cash Provided By (Used For)
Operating Activities
$324,319
 $481,751
 $1,703,181
 $(949,929) $1,559,322
$52,487
 $486,252
 $2,138,195
 $(628,475) $2,048,459
Investing Activities                  
Purchases of fixed maturity investments
 (906,482) (33,662,541) 1,241,363
 (33,327,660)
 (878,577) (29,347,333) 172,133
 (30,053,777)
Purchases of equity securities
 (44,830) (956,319) 
 (1,001,149)
 (155,890) (726,820) 70,743
 (811,967)
Purchases of other investments
 
 (2,014,622) 
 (2,014,622)
 (28,490) (1,442,055) 
 (1,470,545)
Proceeds from the sales of fixed maturity investments
 535,947
 32,218,687
 (1,241,363) 31,513,271

 806,603
 27,937,616
 (148,354) 28,595,865
Proceeds from the sales of equity securities
 
 1,118,445
 
 1,118,445

 7,441
 493,120
 (70,743) 429,818
Proceeds from the sales, redemptions and maturities of other investments
 
 1,561,958
 
 1,561,958

 1,634
 1,207,925
 
 1,209,559
Proceeds from redemptions and maturities of fixed maturity investments
 
 892,755
 
 892,755

 
 643,265
 
 643,265
Net settlements of derivative instruments
 
 44,699
 
 44,699

 
 59,982
 
 59,982
Net (purchases) sales of short-term investments96,476
 7,674
 381,323
 
 485,473
61
 34,372
 5,400
 
 39,833
Change in cash collateral related to securities lending
 
 180,883
 
 180,883

 
 (62,193) 
 (62,193)
Contributions to subsidiaries
 (98,500) 98,500
 
 
(2,121) (6,000) (57,039) 65,160
 
Issuance of intercompany loans
 (200,000) (87,783) 287,783
 
Purchases of fixed assets(110) 
 (29,699) 
 (29,809)(162) 
 (37,675) 
 (37,837)
Other(4) 
 21,740
 
 21,736

 (18,767) (329,719) 
 (348,486)
Net Cash Provided By (Used For)
Investing Activities
96,362
 (506,191) (144,191) 
 (554,020)(2,222) (437,674) (1,743,309) 376,722
 (1,806,483)
Financing Activities                  
Redemption of preferred shares(92,555) 
 
 
 (92,555)
Purchases of common shares under share repurchase program(282,762) 
 
 
 (282,762)(2,871) 
 
 
 (2,871)
Proceeds from common shares issued, net(7,608) 
 
 
 (7,608)6,203
 
 65,160
 (65,160) 6,203
Proceeds from intercompany borrowings
 
 
 
 

 
 287,783
 (287,783) 
Proceeds from borrowings
 
 218,259
 
 218,259

 
 235,083
 (35,000) 200,083
Repayments of intercompany loans
 
 
 
 
Repayments of borrowings
 
 (576,401) 
 (576,401)
 
 (49,182) 
 (49,182)
Change in cash collateral related to securities lending
 
 (180,883) 
 (180,883)
 
 62,193
 
 62,193
Change in third party investment in non-redeemable noncontrolling interests
 
 (75,056) 
 (75,056)
Change in third party investment in redeemable noncontrolling interests
 
 (173,103) 11,221
 (161,882)
Dividends paid to redeemable noncontrolling interests
 
 (19,264) 1,275
 (17,989)
 
 (13,402) 887
 (12,515)
Dividends paid to parent (1)
 
 (948,654) 948,654
 

 
 (627,588) 627,588
 
Other
 
 (7,226) 
 (7,226)
 
 (6,023) 
 (6,023)
Preferred dividends paid(41,645) 
 
 
 (41,645)(41,612) 
 
 
 (41,612)
Net Cash Provided By (Used For)
Financing Activities
(424,570) 
 (1,514,169) 949,929
 (988,810)(38,280) 
 (294,135) 251,753
 (80,662)
Effects of exchange rate changes on foreign currency cash and restricted cash
 
 (19,133) 
 (19,133)
 
 17,741
 
 17,741
Increase (decrease) in cash and restricted cash(3,889) (24,440) 25,688
 
 (2,641)11,985
 48,578
 118,492
 
 179,055
Cash and restricted cash, beginning of year10,048
 30,380
 686,856
 
 727,284
6,159
 5,940
 712,544
 
 724,643
Cash and restricted cash, end of period$6,159
 $5,940
 $712,544
 $
 $724,643
$18,144
 $54,518
 $831,036
 $
 $903,698
(1)Included in net cash provided by (used for) operating activities in the Arch Capital (Parent Guarantor) and/or Arch-U.S. (Subsidiary Issuer) columns.




ARCH CAPITAL17216720182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






 Year Ended December 31, 2018
Condensed Consolidating Statement
of Cash Flows
Arch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Operating Activities         
Net Cash Provided By (Used For)
Operating Activities
$324,319
 $481,751
 $1,703,181
 $(949,929) $1,559,322
Investing Activities         
Purchases of fixed maturity investments
 (906,482) (33,662,541) 1,241,363
 (33,327,660)
Purchases of equity securities
 (44,830) (956,319) 
 (1,001,149)
Purchases of other investments
 
 (2,014,622) 
 (2,014,622)
Proceeds from the sales of fixed maturity investments
 535,947
 32,218,687
 (1,241,363) 31,513,271
Proceeds from the sales of equity securities
 
 1,118,445
 
 1,118,445
Proceeds from the sales, redemptions and maturities of other investments
 
 1,561,958
 
 1,561,958
Proceeds from redemptions and maturities of fixed maturity investments
 
 892,755
 
 892,755
Net settlements of derivative instruments
 
 44,699
 
 44,699
Net (purchases) sales of short-term investments96,476
 7,674
 381,323
 
 485,473
Change in cash collateral related to securities lending
 
 180,883
 
 180,883
Contributions to subsidiaries
 (98,500) 98,500
 
 
Purchases of fixed assets(110) 
 (29,699) 
 (29,809)
Other(4) 
 21,740
 
 21,736
Net Cash Provided By (Used For)
Investing Activities
96,362
 (506,191) (144,191) 
 (554,020)
Financing Activities         
Redemption of preferred shares(92,555) 
 
 
 (92,555)
Purchases of common shares under share repurchase program(282,762) 
 
 
 (282,762)
Proceeds from common shares issued, net(7,608) 
 
 
 (7,608)
Proceeds from borrowings
 
 218,259
 
 218,259
Repayments of borrowings
 
 (576,401) 
 (576,401)
Change in cash collateral related to securities lending
 
 (180,883) 
 (180,883)
Dividends paid to redeemable noncontrolling interests
 
 (19,264) 1,275
 (17,989)
Dividends paid to parent (1)
 
 (948,654) 948,654
 
Other
 
 (7,226) 
 (7,226)
Preferred dividends paid(41,645) 
 
 
 (41,645)
Net Cash Provided By (Used For)
Financing Activities
(424,570) 
 (1,514,169) 949,929
 (988,810)
Effects of exchange rate changes on foreign currency cash and restricted cash
 
 (19,133) 
 (19,133)
Increase (decrease) in cash and restricted cash(3,889) (24,440) 25,688
 
 (2,641)
Cash and restricted cash, beginning of year10,048
 30,380
 686,856
 
 727,284
Cash and restricted cash, end of period$6,159
 $5,940
 $712,544
 $
 $724,643
 Year Ended December 31, 2017
Condensed Consolidating Statement
of Cash Flows
Arch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Operating Activities         
Net Cash Provided By (Used For)
Operating Activities
$159,130
 $(10,289) $1,649,751
 $(703,714) $1,094,878
Investing Activities         
Purchases of fixed maturity investments
 
 (36,806,913) 
 (36,806,913)
Purchases of equity securities
 
 (1,021,016) 
 (1,021,016)
Purchases of other investments
 
 (2,020,624) 
 (2,020,624)
Proceeds from the sales of fixed maturity investments
 
 35,686,779
 
 35,686,779
Proceeds from the sales of equity securities
 
 1,056,401
 
 1,056,401
Proceeds from the sales, redemptions and maturities of other investments
 
 1,528,617
 
 1,528,617
Proceeds from redemptions and maturities of fixed maturity investments
 
 907,417
 
 907,417
Net settlements of derivative instruments
 
 (28,563) 
 (28,563)
Net (purchases) sales of short-term investments(93,864) (4,586) (636,104) 
 (734,554)
Change in cash collateral related to securities lending
 
 12,540
 
 12,540
Contributions to subsidiaries20,457
 (73,700) (423,998) 477,241
 
Issuance of intercompany loans
 
 (47,000) 47,000
 
Repayment of intercompany loans
 47,000
 80,840
 (127,840) 
Acquisitions, net of cash
 
 
 
 
Purchases of fixed assets(18) 
 (22,823) 
 (22,841)
Other
 
 111,516
 (20,641) 90,875
Net Cash Provided By (Used For)
Investing Activities
(73,425) (31,286) (1,622,931) 375,760
 (1,351,882)
Financing Activities         
Proceeds from issuance of preferred shares, net319,694
 
 
 
 319,694
Redemption of preferred shares(230,000) 
 
 
 (230,000)
Proceeds from common shares issued, net(21,048) 
 477,244
 (477,244) (21,048)
Proceeds from intercompany borrowings
 
 47,000
 (47,000) 
Proceeds from borrowings
 
 253,415
 
 253,415
Repayments of intercompany borrowings
 
 (127,840) 127,840
 
Repayments of borrowings(100,000) 
 (97,000) 
 (197,000)
Change in cash collateral related to securities lending
 
 (12,540) 
 (12,540)
Dividends paid to redeemable noncontrolling interests
 
 (19,264) 1,275
 (17,989)
Dividends paid to parent (1)
 
 (702,442) 702,442
 
Other
 
 (72,537) 20,641
 (51,896)
Preferred dividends paid(46,041) 
 
 
 (46,041)
Net Cash Provided By (Used For)
Financing Activities
(77,395) 
 (253,964) 327,954
 (3,405)
Effects of exchange rate changes on foreign currency cash and restricted cash
 
 18,124
 
 18,124
Increase (decrease) in cash and restricted cash8,310
 (41,575) (209,020) 
 (242,285)
Cash and restricted cash, beginning of year1,738
 71,955
 895,876
 
 969,569
Cash and restricted cash, end of period$10,048
 $30,380
 $686,856
 $
 $727,284

(1)Included in net cash provided by (used for) operating activities in the Arch Capital (Parent Guarantor) and/or Arch-U.S. (Subsidiary Issuer) columns.




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Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






 Year Ended December 31, 2017
Condensed Consolidating Statement
of Cash Flows
Arch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Operating Activities         
Net Cash Provided By (Used For)
Operating Activities
$159,130
 $(10,289) $1,649,751
 $(703,714) $1,094,878
Investing Activities         
Purchases of fixed maturity investments
 
 (36,806,913) 
 (36,806,913)
Purchases of equity securities
 
 (1,021,016) 
 (1,021,016)
Purchases of other investments
 
 (2,020,624) 
 (2,020,624)
Proceeds from the sales of fixed maturity investments
 
 35,686,779
 
 35,686,779
Proceeds from the sales of equity securities
 
 1,056,401
 
 1,056,401
Proceeds from the sales, redemptions and maturities of other investments
 
 1,528,617
 
 1,528,617
Proceeds from redemptions and maturities of fixed maturity investments
 
 907,417
 
 907,417
Net settlements of derivative instruments
 
 (28,563) 
 (28,563)
Proceeds from investment in joint venture
 
 
 
 
Net (purchases) sales of short-term investments(93,864) (4,586) (636,104) 
 (734,554)
Change in cash collateral related to securities lending
 
 12,540
 
 12,540
Contributions to subsidiaries20,457
 (73,700) (423,998) 477,241
 
Issuance of intercompany loans
 
 (47,000) 47,000
 
Repayment of intercompany loans
 47,000
 80,840
 (127,840) 
Purchases of fixed assets(18) 
 (22,823) 
 (22,841)
Other
 
 111,516
 (20,641) 90,875
Net Cash Provided By (Used For)
Investing Activities
(73,425) (31,286) (1,622,931) 375,760
 (1,351,882)
Financing Activities         
Proceeds from issuance of Series C preferred shares issued, net319,694
 
 
 
 319,694
Redemption of preferred shares(230,000) 
 
 
 (230,000)
Purchases of common shares under share repurchase program
 
 
 
 
Proceeds from common shares issued, net(21,048) 
 477,244
 (477,244) (21,048)
Proceeds from intercompany borrowings
 
 47,000
 (47,000) 
Proceeds from borrowings
 
 253,415
 
 253,415
Repayments of intercompany borrowings
 
 (127,840) 127,840
 
Repayments of borrowings(100,000) 
 (97,000) 
 (197,000)
Change in cash collateral relating to securities lending
 
 (12,540) 
 (12,540)
Dividends paid to redeemable noncontrolling
 
 (19,264) 1,275
 (17,989)
Dividends paid to parent (1)
 
 (702,442) 702,442
 
Other
 
 (72,537) 20,641
 (51,896)
Preferred dividends paid(46,041) 
 
 
 (46,041)
Net Cash Provided By (Used For)
Financing Activities
(77,395) 
 (253,964) 327,954
 (3,405)
Effects of exchange rate changes on foreign currency cash and restricted cash
 
 18,124
 
 18,124
Increase (decrease) in cash and restricted cash8,310
 (41,575) (209,020) 
 (242,285)
Cash and restricted cash, beginning of year1,738
 71,955
 895,876
 
 969,569
Cash and restricted cash, end of period$10,048
 $30,380
 $686,856
 $
 $727,284
 Year Ended December 31, 2016
Condensed Consolidating Statement
of Cash Flows
Arch Capital (Parent Guarantor) Arch-U.S. (Subsidiary Issuer) Other Arch Capital Subsidiaries Consolidating Adjustments and Eliminations Arch Capital Consolidated
Operating Activities         
Net Cash Provided By (Used For)
Operating Activities
$148,209
 $6,395
 $1,445,953
 $(223,128) $1,377,429
Investing Activities         
Purchases of fixed maturity investments
 
 (35,532,810) 
 (35,532,810)
Purchases of equity securities
 
 (665,702) 
 (665,702)
Purchases of other investments
 
 (1,389,406) 
 (1,389,406)
Proceeds from the sales of fixed maturity investments
 
 34,559,966
 
 34,559,966
Proceeds from the sales of equity securities
 
 751,728
 
 751,728
Proceeds from the sales, redemptions and maturities of other investments
 
 1,149,328
 
 1,149,328
Proceeds from redemptions and maturities of fixed maturity investments
 41,500
 713,507
 
 755,007
Net settlements of derivative instruments
 
 (17,068) 
 (17,068)
Net (purchases) sales of short-term investments(2,075) (40,963) (80,372) 
 (123,410)
Change in cash collateral related to securities lending
 
 (155,248) 
 (155,248)
Contributions to subsidiaries(479,912) (887,650) (546,269) 1,913,831
 
Issuance of intercompany loans
 
 (1,460,000) 1,460,000
 
Acquisitions, net of cash
 
 (1,992,720) 
 (1,992,720)
Purchases of fixed assets(8) 
 (15,295) 
 (15,303)
Other2,000
 
 (29,795) 
 (27,795)
Net Cash Provided By (Used For)
Investing Activities
(479,995) (887,113) (4,710,156) 3,373,831
 (2,703,433)
Financing Activities         
Proceeds from issuance of Series C preferred shares issued, net434,899
 
 
 
 434,899
Redemption of preferred shares(2,445) 
 
 
 (2,445)
Purchases of common shares under share repurchase program(75,256) 
 
 
 (75,256)
Proceeds from common shares issued, net(2,418) 435,450
 1,478,381
 (1,913,831) (2,418)
Proceeds from intercompany borrowings
 500,000
 960,000
 (1,460,000) 
Proceeds from borrowings
 
 1,386,741
 
 1,386,741
Repayments of borrowings
 
 (219,171) 
 (219,171)
Change in cash collateral relating to securities lending
 
 155,248
 
 155,248
Dividends paid to redeemable noncontrolling
 
 (19,264) 1,275
 (17,989)
Dividends paid to parent (1)
 
 (221,853) 221,853
 
Other(48) 200
 3,978
 
 4,130
Preferred dividends paid(28,070) 
 
 
 (28,070)
Net Cash Provided By (Used For)
Financing Activities
326,662
 935,650
 3,524,060
 (3,150,703) 1,635,669
Effects of exchange rate changes on foreign currency cash and restricted cash
 
 (21,191) 
 (21,191)
Increase (decrease) in cash and restricted cash(5,124) 54,932
 238,666
 
 288,474
Cash and restricted cash, beginning of year6,862
 17,023
 657,210
 
 681,095
Cash and restricted cash, end of period$1,738
 $71,955
 $895,876
 $
 $969,569

(1)Included in net cash provided by (used for) operating activities in the Arch Capital (Parent Guarantor) and/or Arch-U.S. (Subsidiary Issuer) columns.




ARCH CAPITAL17416920182019 FORM 10-K



Table of Contents
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS






26.
27.    Subsequent Event
Business Acquired
On November 1, 2018,February 25, 2020, the Company announced that its U.K. insurance operationsit has entered into a renewal rights transactionshare purchase agreement with The Ardonagh Group ofNatixis to purchase a U.K. commercial lines book of business, consisting of commercial property, casualty, motor, professional liability, personal accident and travel business.29.5% stake in Coface, a France-based leader in the global trade credit insurance market. The transaction closedwill be completed at a price of €10.70 per share (dividend until closing attached), corresponding to a transaction value of approximately €480 million based on January 1, 2019.the current number of shares. As part of the transaction, Natixis’ seven representatives on Coface’s board of directors will resign and be replaced by four Arch nominees. Among other things, this transaction remains subject to antitrust and regulatory approvals, including in particular, approval by the French prudential regulator, the Autorité de Controle Prudentiel et de Résolution.






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Table of Contents



ITEM 9.
CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.

ITEM 9A.
CONTROLS AND PROCEDURES
ITEM 9A. CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures
In connection with the filing of this Form 10-K, our management, including the Chief Executive Officer and Chief Financial Officer, conducted an evaluation, as of December 31, 2018,2019, for the purposes set forth in the applicable rules under the Securities and Exchange Act of 1934, as amended (the “Exchange Act”). Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures are effective.
We continue to enhance our operating procedures and internal controls (including information technology initiatives and controls over financial reporting) to effectively support our business and our regulatory and reporting requirements. Our management does not expect that our disclosure controls or our internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. As a result of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the company have been detected. These inherent limitations include the realities that judgments in decision making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons or by collusion of two or more people.
The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. As a result of the inherent limitations in a cost-effective control system, misstatement due to error or fraud may occur and not be detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable, not absolute, assurance that the disclosure controls and procedures are met.
 
Management’s Annual Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2018.2019. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations (COSO) of the Treadway Commission in Internal Control-Integrated Framework (2013).
Based on our assessment, management determined that, as of December 31, 2018,2019, our internal control over financial reporting was effective. The effectiveness of our internal control over financial reporting as of December 31, 20182019 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report included in Item 8.
Changes in Internal Control Over Financial Reporting
There have been no changes in internal control over financial reporting that occurred in connection with our evaluation required pursuant to Rules 13a-15 and 15d-15 under the Exchange Act during the fiscal quarter ended December 31, 20182019 that have materially affected, or are reasonably likely to materially affect, internal control over financial reporting.




ARCH CAPITAL17617120182019 FORM 10-K








ITEM 9B.
OTHER INFORMATION
ITEM 9B. OTHER INFORMATION
Disclosure of Certain Activities Under Section 13(r) of the Securities Exchange Act of 1934


Section 13(r) of the Securities Exchange Act of 1934, as amended, requires an issuer to disclose in its annual or quarterly reports whether it or an affiliate knowingly engaged in certain activities described in that section, including certain activities related to Iran during the period covered by the report.
On January 16, 2016, the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”) adopted General License H which authorized non-U.S. entities that are owned or controlled by a U.S. person to engage in certain activities with Iran so long as they complied with certain specific requirements set forth therein.
As and when allowed by the applicable law and regulations, certainCertain of our non-U.S. subsidiaries provideunderwrite insurance and facultative reinsurance on a global basis to non-U.S. insureds and insurers, including for liability, marine, aviation and energy risks. Coverage provided to non-Iranian business may indirectly cover an exposure in Iran. For example, certain of our operations underwrite global marine hull and energycargo policies and global marine reinsurance which may have some exposure to Iran. The global marine policies and reinsurancethat provide coverage for vessels navigating into and out of ports worldwide. In lightworldwide, including Iran. For the year ended December 31, 2019, there has been no material amount of European Union and U.S. modificationspremium allocated or apportioned to activities relating to Iran, sanctions in 2016, including the issuance of General License H, and consistent with General License H, we have been notified that certain of our policyholders shipped cargo to and from Iran, and that such cargo may include transporting crude oil from Iran to another country. Since these policies insure multiple voyages and fleets containing multiple ships, we are unable to attribute gross revenues or net profits from these policies to activities involving Iran. On May 8, 2018,any
 
such policies because they insure multiple voyages and fleets containing multiple ships. Such non-U.S. subsidiaries will continue to provide such coverage only to the Presidentextent permitted by applicable law.
Subsequent Event

On February 25, 2020, the Company announced that the U.S. would withdraw from the Joint Comprehensive Plan of Action and begin reinstituting Iranian sanctions. Since May 8, 2018, our non-U.S. subsidiaries operating under General License H have notit has entered into any new transactions that had previously been permitted under General License H. On June 27, 2018, OFAC revoked General License Ha share purchase agreement with Natixis to purchase a 29.5% stake in Coface, a France-based leader in the global trade credit insurance market. The transaction will be completed at a price of €10.70 per share (dividend until closing attached), corresponding to a transaction value of approximately €480 million based on the current number of shares. As part of the transaction, Natixis’ seven representatives on Coface’s board of directors will resign and added regulations which authorized all transactionsbe replaced by four Arch nominees. Among other things, this transaction remains subject to antitrust and activities ordinarily incident and necessary toregulatory approvals, including in particular, approval by the winding down of activities previously approved under General License H through November 4, 2018. Our non-U.S. subsidiaries operating under General License H completed their wind down activities by November 4, 2018, in accordance with all applicable laws and regulations.
















French prudential regulator, the Autorité de Controle Prudentiel et de Résolution.
PART III

ITEM 10.
DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by this item is incorporated by reference from the information to be included in our definitive proxy statement (“Proxy Statement”) for our annual meeting of shareholders to be held in 2018,2020, which we intend to file with the SEC pursuant to Regulation 14A before May 1, 2019.2020. Copies of our code of ethics applicable to our chief executive officer, chief financial officer and principal accounting officer or controller are available free of charge to investors upon written request addressed to the attention of Arch Capital’s corporate secretary, Waterloo House, 100 Pitts Bay Road, Pembroke HM 08, Bermuda. In addition, our code of ethics and certain other basic corporate documents, including the charters of our audit committee, compensation committee and nominating committee are posted on our website.
If any substantive amendments are made to the code of ethics or if
there is a grant of a waiver, including any implicit waiver, we will disclose the nature of such amendment or waiver on our website or in a report on Form 8-K, to the extent required by applicable law or the rules and regulations of any exchange applicable to us. Our website address is intended to be an inactive, textual reference only and none of the material on our website is incorporated by reference into this report.




ARCH CAPITAL17717220182019 FORM 10-K








ITEM 11.
EXECUTIVE COMPENSATION
ITEM 11. EXECUTIVE COMPENSATION
The information required by this item is incorporated by reference from the information to be included in the Proxy Statement which we intend to file pursuant to Regulation 14A
 
with the SEC before May 1, 2019,2020, which Proxy Statement is incorporated by reference.

ITEM 12.
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
Other than the information set forth below, the information required by this item is incorporated by reference from the information to be included in the Proxy Statement which we intend to file pursuant to Regulation 14A with the SEC before May 1, 2019,2020, which Proxy Statement is incorporated by reference.
The following information is as of December 31, 2018:2019:
Column A Column B Column C Column A Column B Column C 
Plan CategoryNumber of Securities to be Issued Upon Exercise of Outstanding Stock Options(1), Warrants and Rights 
Weighted-Average Exercise Price of Outstanding
Stock Options(1), Warrants and Rights ($)
 Number of Securities Remaining Available for Future Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column A Number of Securities to be Issued Upon Exercise of Outstanding Stock Options(1), Warrants and Rights 
Weighted-Average Exercise Price of Outstanding
Stock Options(1), Warrants and Rights ($)
 Number of Securities Remaining Available for Future Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column A) 
Equity compensation plans approved by security holders21,383,897
 $19.37
 37,136,857
 20,439,797
 $20.94
 28,927,609
 
Equity compensation plans not approved by security holders
 
 
 
 
 
 
Total21,383,897
 $19.37
 37,136,857
(2)20,439,797
 $20.94
 28,927,609
(2)
________________________
(1)Includes all vested and unvested stock options outstanding of 20,076,59318,853,018 and restricted stock and performance units outstanding of 1,307,304.1,586,779. The weighted average exercise price does not take into account restricted stock units. In addition, the weighted average remaining contractual life of the Company's outstanding exercisable stock options and SARs at December 31, 20182019 was 5.45.0 years.
(2)Includes 3,281,6862,729,721 common shares remaining available for future issuance under our Employee Share Purchase Plan and 33,855,17126,197,888 common shares remaining available for future issuance under our equity compensation plans. Shares available for future issuance under our equity compensation plans may be issued in the form of stock options, SARs, restricted shares, restricted share units payable in common shares or cash, share awards in lieu of cash awards, dividend equivalents, performance shares and performance units and other share-based awards. In addition, 9,784,5157,608,674 common shares, or 28.9%26.3% of the 33,855,17128,927,609 common shares remaining available for future issuance may be issued in connection with full value awards (i.e., awards other than stock options or SARs).


178

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ITEM 13.
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by this item is incorporated by reference from the information to be included in the Proxy Statement which we intend to file pursuant to Regulation 14A
 
with the SEC before May 1, 2019,2020, which Proxy Statement is incorporated by reference.

ITEM 14.
PRINCIPAL ACCOUNTANT FEES AND SERVICES
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
The information required by this item is incorporated by reference from the information to be included in our Proxy Statement which we intend to file pursuant to Regulation 14A
 
with the SEC before May 1, 2019,2020, which Proxy Statement is incorporated by reference.
PART IV

ITEM 15.
EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
(a) Financial Statements, Financial Statement Schedules and Exhibits.
1.Financial Statements
Included in Part II – see Item 8 of this report.
2.Financial Statement Schedules
 Page No.
  
 
For the years ended December 31, 2019, 2018 2017 and 20162017
  
 
For the years ended December 31, 2019, 2018 2017 and 20162017
  
 
For the years ended December 31, 2019, 2018 2017 and 20162017
Schedules other than those listed above are omitted for the reason that they are not applicable or the information is provided in Item 8 of this report.




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Table of Contents


3.    Exhibits
    Incorporated by Reference  
Exhibit Number Exhibit Description Form Original Number Date Filed Filed Herewith
3.1  S-4 3.1 September 8, 2000  
3.2  10-Q 3 August 5, 2016  
3.3  10-K 3.3 February 28, 2011  
4.1.1  8-K 4.1 September 29, 2016  
4.1.2  8-K 4.1 August 17, 2017  
4.2.1  10-K405 4.1 April 2, 2001  
4.2.2  8-K 4.2 September 29, 2016  
4.2.3  8-K 4.2 August 17, 2017  
4.3.1  8-K 99.2 May 7, 2004  
4.3.2  8-K 99.3 May 7, 2004  
4.3.3  8-K 4.1 December 13, 2013  
4.3.4  8-K 4.2 December 13, 2013  
4.3.5 

 8-K 4.1 May 15, 2018  
4.4.1  8-K 4.3 September 29, 2016  
4.4.2  8-K 4.3 August 17, 2017  
4.5.1  8-K 4.4 September 29, 2016  
4.5.2  8-K 4.4 August 17, 2017  
4.6.1  8-K 4.1 December 9, 2016  
4.6.2  8-K 4.2 December 9, 2016  
10.1.1  10-Q 10.1 August 14, 2002  
10.1.2  10-Q 10.4 November 12, 2003  
10.1.3  10-K 10.6 March 2, 2009  
10.2.1  10-Q 10.7 August 5, 2016  
10.2.2  10-Q 10.1 May 5, 2017  
10.3.1  DEF 14A   April 3, 2007  
10.3.2  DEF 14A   March 27, 2012  
10.3.3  DEF 14A   March 26, 2015  
10.3.4  DEF 14A   March 28, 2018  
10.3.5  DEF 14A   March 23, 2016  
10.4.1 

 10-K 10.7.15 March 10, 2004  
10.4.2  10-K 10.10.9 March 2, 2009  
10.4.3  10-Q 10.1 November 9, 2009  
10.4.4  10-Q 10.2 August 7, 2015  
10.4.5  10-Q 10.2 August 5, 2016  
10.4.6  10-Q 10.3 August 4, 2017  
    Incorporated by Reference  
Exhibit Number Exhibit Description Form Original Number Date Filed Filed Herewith
3.1  S-4 3.1 September 8, 2000  
3.2  10-Q 3 August 5, 2016  
3.3  10-K 3.3 February 28, 2011  
4.1.1  8-K 4.1 September 29, 2016  
4.1.2  8-K 4.1 August 17, 2017  
4.2.1  10-K405 4.1 April 2, 2001  
4.2.2  8-K 4.2 September 29, 2016  
4.2.3  8-K 4.2 August 17, 2017  
4.3.1  8-K 99.2 May 7, 2004  
4.3.2  8-K 99.3 May 7, 2004  
4.3.3  8-K 4.1 December 13, 2013  
4.3.4  8-K 4.2 December 13, 2013  
4.3.5 

 8-K 4.1 May 15, 2018  
4.4.1  8-K 4.3 September 29, 2016  
4.4.2  8-K 4.3 August 17, 2017  
4.5.1  8-K 4.4 September 29, 2016  
4.5.2  8-K 4.4 August 17, 2017  
4.6.1  8-K 4.1 December 9, 2016  
4.6.2  8-K 4.2 December 9, 2016  
4.7        X
10.1.1  10-Q 10.1 August 14, 2002  
10.1.2  10-Q 10.4 November 12, 2003  
10.1.3  10-K 10.6 March 2, 2009  
10.2.1  10-Q 10.7 August 5, 2016  
10.2.2  10-Q 10.1 May 5, 2017  
10.3.1  DEF 14A   April 3, 2007  
10.3.2  DEF 14A   March 27, 2012  
10.3.3  DEF 14A   March 26, 2015  
10.3.4  DEF 14A   March 28, 2018  
10.3.5  DEF 14A   March 23, 2016  
10.4.1  10-K 10.7.15 March 10, 2004  
10.4.2  10-K 10.10.9 March 2, 2009  
10.4.3  10-Q 10.1 November 9, 2009  
10.4.4  10-Q 10.2 August 7, 2015  
10.4.5  10-Q 10.2 August 5, 2016  
10.4.6  10-Q 10.3 August 4, 2017  




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10.4.7  10-Q 10.4 August 4, 2017   10-Q 10.4 August 4, 2017 
10.4.8  10-K 10.4.13 February 28, 2018   10-K 10.4.13 February 28, 2018 
10.4.9  10-Q 10.3 August 8, 2018   10-Q 10.3 August 8, 2018 
10.4.10  10-Q 10.6 August 8, 2018   10-Q 10.6 August 8, 2018 
10.4.11  10-Q 10.7 August 8, 2018   10-Q 10.7 August 8, 2018 
10.5  10-Q 10.5 August 8, 2018   10-Q 10.5 August 8, 2018 
10.6.1  10-Q 10.3 August 7, 2015   10-Q 10.3 August 7, 2015 
10.6.2  10-Q 10.6 August 5, 2016   10-Q 10.6 August 5, 2016 
10.6.3  10-Q 10.3 August 5, 2016   10-Q 10.3 August 5, 2016 
10.6.4  10-Q 10.22 November 3, 2017   10-Q 10.22 November 3, 2017 
10.6.5  10-Q 10.5 August 4, 2017   10-Q 10.5 August 4, 2017 
10.6.6  10-K 10.5.6 February 28, 2018   10-K 10.5.6 February 28, 2018 
10.6.7  10-K 10.5.7 February 28, 2018   10-K 10.5.7 February 28, 2018 
10.6.8  10-Q 10.4 August 8, 2018   10-Q 10.4 August 8, 2018 
10.6.9  10-Q 10.8 August 8, 2018   10-Q 10.8 August 8, 2018 
10.6.10  10-Q 10.4 May 9, 2018   10-Q 10.4 May 9, 2018 
10.6.11  10-Q 10.5 May 9, 2018   10-Q 10.5 May 9, 2018 
10.7.1  10-Q 10.1 November 10, 2008   10-Q 10.1 November 10, 2008 
10.7.2  10-K 10.12.4 February 26, 2010   10-K 10.12.4 February 26, 2010 
10.7.3  10-Q 10.4 November 9, 2012   10-Q 10.4 November 9, 2012 
10.7.4  10-Q 10.4 November 8, 2010   10-Q 10.4 November 8, 2010 
10.7.5  10-Q 10.7 November 8, 2011   10-Q 10.7 November 8, 2011 
10.7.6  10-Q 10.9 November 8, 2011   10-Q 10.9 November 8, 2011 
10.7.7  10-Q 10.10 November 8, 2011   10-Q 10.10 November 8, 2011 
10.7.8  10-Q 10.12 November 8, 2011   10-Q 10.12 November 8, 2011 
10.7.9  10-Q 10.1 November 3, 2017   10-Q 10.1 November 3, 2017 
10.7.10  10-Q 10.5 November 9, 2012   10-Q 10.5 November 9, 2012 
10.7.11  10-Q 10.3 November 3, 2017   10-Q 10.2 November 3, 2017 
10.7.12  10-Q 10.2 November 3, 2017   10-Q 10.3 November 9, 2012 
10.7.13  10-Q 10.4 November 3, 2017 




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10.7.13  10-Q 10.3 November 9, 2012 
10.7.14  10-Q 10.4 November 3, 2017   10-Q 10.3 August 9, 2013 
10.7.15  10-Q 10.9 November 3, 2017   10-Q 10.2 November 8, 2013 
10.7.16  10-Q 10.3 August 9, 2013   10-Q 10.6 August 8, 2014 
10.7.17  10-Q 10.11 November 3, 2017   10-Q 10.3 August 8, 2014 
10.7.18  10-Q 10.2 November 8, 2013   10-Q 10.15 November 3, 2017 
10.7.19  10-Q 10.12 November 3, 2017   10-Q 10.2 May 8, 2015 
10.7.20  10-Q 10.6 August 8, 2014   10-Q 10.5 August 5, 2016 
10.7.21  10-Q 10.14 November 3, 2017 
10.7.22  10-Q 10.3 August 8, 2014 
10.7.23  10-Q 10.15 November 3, 2017 
10.7.24  10-Q 10.2 May 8, 2015 
10.7.25  10-Q 10.5 August 5, 2016 
10.8.1  8-K 10.1 October 28, 2008   8-K 10.1 October 28, 2008 
10.8.2  10-Q 10.1 May 8, 2015   10-Q 10.1 May 8, 2015 
10.8.3  10-Q 10.1 May 9, 2018   10-Q 10.1 May 9, 2018 
10.9  10-Q 10.2 August 8, 2018   10-Q 10.2 August 8, 2018 
10.10  8-K 10.1 September 22, 2017 
10.10.1  8-K 10.1 September 22, 2017 
10.10.2  8-K 10.1 March 21, 2019 
10.11  10-Q 10.26 November 3, 2017   10-Q 10.26 November 3, 2017 
10.12  10-Q 10.27 November 3, 2017   10-Q 10.27 November 3, 2017 
10.13  10-Q 10.28 November 3, 2017   8-K/A 10.1 July 26, 2018 
10.14  8-K/A 10.1 July 26, 2018   8-K/A 10.1 April 11, 2018 
10.15  8-K/A 10.1 April 11, 2018   10-K 10.16 February 28, 2019 
10.16  X  10-K X
10.17  10-K 10.24 March 2, 2009   10-K 10.24 March 2, 2009 
10.18.1  8-K 2.1 August 16, 2016 
10.18.2  10-Q 10.1 August 4, 2017 
10.18.3  10-Q 10.2 August 4, 2017 
10.19  8-K 10.1 October 26, 2016 
10.18  8-K 10.1 December 18, 2019 
21  X  X
23  X  X
24  X  X
31.1  X  X
31.2  X
32.1  X
32.2  X
101 The following financial information from ACGL’s Annual Report on Form 10-K for the year ended December 31, 2019 formatted in XBRL: (i) Consolidated Balance Sheets at December 31, 2019 and 2018; (ii) Consolidated Statements of Income for the years ended December 31, 2019, 2018 and 2017; (iii) Consolidated Statements of Comprehensive Income for the years ended December 31, 2019, 2018 and 2017; (iv) Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2019, 2018 and 2017; (v) Consolidated Statements of Cash Flows for the years ended December 31, 2019, 2018 and 2017; and (vi) Notes to Consolidated Financial Statements X

Management contract or compensatory plan or arrangement.



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31.2X
32.1X
32.2X
101The following financial information from ACGL’s Annual Report on Form 10-K for the year ended December 31, 2018 formatted in XBRL: (i) Consolidated Balance Sheets at December 31, 2018 and 2017; (ii) Consolidated Statements of Income for the years ended December 31, 2018, 2017 and 2016; (iii) Consolidated Statements of Comprehensive Income for the years ended December 31, 2018, 2017 and 2016; (iv) Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2018, 2017 and 2016; (v) Consolidated Statements of Cash Flows for the years ended December 31, 2018, 2017 and 2016; and (vi) Notes to Consolidated Financial StatementsX
Management contract or compensatory plan or arrangement.



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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
ARCH CAPITAL GROUP LTD.
(Registrant)
 By:/s/ Marc Grandisson
  Name:Marc Grandisson
  Title:
President and Chief Executive Officer (Principal Executive Officer)


February 28, 20192020
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.
NameTitleDate
   
/s/ Marc Grandisson  
Marc Grandisson
President and Chief Executive Officer (Principal Executive Officer)


February 28, 20192020
   
/s/ François Morin  
François MorinExecutive Vice President and Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)February 28, 20192020
   
*  
Constantine IordanouJohn M. Pasquesi
Chairman of the Board


February 28, 20192020
   
*  
John L. Bunce. Jr.DirectorFebruary 28, 20192020
   
*  
Eric W. DoppstadtDirectorFebruary 28, 20192020
   
*  
Laurie S. GoodmanDirectorFebruary 28, 20192020




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NameTitleDate
   
*  
Louis J. PagliaMoira KilcoyneDirectorFebruary 28, 20192020
   
*  
John M. PasquesiLouis J. PagliaDirectorFebruary 28, 20192020
   
*  
Brian S. PosnerDirectorFebruary 28, 20192020
   
*  
Eugene S. SunshineDirectorFebruary 28, 20192020
   
*  
John D. VollaroDirectorFebruary 28, 20192020
*
Thomas R. WatjenDirectorFebruary 28, 2020


___________________
*By François Morin, as attorney-in-fact and agent, pursuant to a power of attorney, a copy of which has been filed with the Securities and Exchange Commission as Exhibit 24 to this report.
  
/s/ François Morin


Name:
François Morin
Attorney-in-Fact






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SCHEDULE III
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
SUPPLEMENTARY INSURANCE INFORMATION
(U.S. dollars in thousands)
Deferred Acquisition CostsReserves for Losses and Loss Adjustment ExpensesUnearned PremiumsNet Premiums EarnedNet Investment Income (1)Net Losses and Loss Adjustment Expenses IncurredAmortization of Deferred Acquisition CostsOther Operating Expenses (2)Net Premiums WrittenDeferred Acquisition CostsReserves for Losses and Loss Adjustment ExpensesUnearned PremiumsNet Premiums EarnedNet Investment Income (1)Net Losses and Loss Adjustment Expenses IncurredAmortization of Deferred Acquisition CostsOther Operating Expenses (2)Net Premiums Written
December 31, 2019   
Insurance
$188,684

$7,900,328

$1,991,496

$2,397,080
NM
$1,615,475

$361,614

$454,770

$2,641,726
Reinsurance197,856
4,270,013
971,776
1,466,389
NM1,011,329
239,032
141,484
1,602,723
Mortgage182,816
457,872
937,370
1,366,340
NM53,513
134,319
153,092
1,261,756
Other64,044
1,263,629
438,907
556,689
NM453,135
105,980
51,651
532,862
Total
$633,400

$13,891,842

$4,339,549

$5,786,498
NM
$3,133,452

$840,945

$800,997

$6,039,067
December 31, 2018      
Insurance
$152,360

$7,093,018

$1,549,183

$2,205,661
NM
$1,520,680

$349,702

$364,138

$2,212,125

$152,360

$7,093,018

$1,549,183

$2,205,661
NM
$1,520,680

$349,702

$364,138

$2,212,125
Reinsurance166,276
3,215,909
710,774
1,261,216
NM846,882
211,280
133,350
1,372,572
166,276
3,215,909
710,774
1,261,216
NM846,882
211,280
133,350
1,372,572
Mortgage170,080
511,610
1,103,565
1,186,236
NM81,289
118,595
142,432
1,157,875
170,080
511,610
1,103,565
1,186,236
NM81,289
118,595
142,432
1,157,875
Other80,858
1,032,760
390,114
578,862
NM441,255
125,558
37,889
604,175
80,858
1,032,760
390,114
578,862
NM441,255
125,558
37,889
604,175
Total
$569,574

$11,853,297

$3,753,636

$5,231,975
NM
$2,890,106

$805,135

$677,809

$5,346,747

$569,574

$11,853,297

$3,753,636

$5,231,975
NM
$2,890,106

$805,135

$677,809

$5,346,747
December 31, 2017      
Insurance
$159,224

$6,952,676

$1,451,390

$2,113,018
NM
$1,622,444

$323,639

$359,524

$2,122,440

$159,224

$6,952,676

$1,451,390

$2,113,018
NM
$1,622,444

$323,639

$359,524

$2,122,440
Reinsurance150,582
3,053,694
633,810
1,142,621
NM773,923
221,250
146,663
1,174,474
150,582
3,053,694
633,810
1,142,621
NM773,923
221,250
146,663
1,174,474
Mortgage140,057
579,160
1,206,470
1,057,166
NM134,677
100,598
146,336
1,111,342
140,057
579,160
1,206,470
1,057,166
NM134,677
100,598
146,336
1,111,342
Other85,961
798,262
330,644
531,727
NM436,402
129,971
31,928
553,117
85,961
798,262
330,644
531,727
NM436,402
129,971
31,928
553,117
Total
$535,824

$11,383,792

$3,622,314

$4,844,532
NM
$2,967,446

$775,458

$684,451

$4,961,373

$535,824

$11,383,792

$3,622,314

$4,844,532
NM
$2,967,446

$775,458

$684,451

$4,961,373
December 31, 2016   
Insurance
$152,983

$6,502,745

$1,403,822

$2,073,904
NM
$1,622,444

$323,639

$359,524

$2,122,440
Reinsurance121,806
2,506,239
532,759
1,056,232
NM773,923
221,250
146,663
1,174,474
Mortgage86,392
681,167
1,176,809
286,716
NM134,677
100,598
146,336
1,111,342
Other86,379
510,809
293,480
467,970
NM436,402
129,971
31,928
553,117
Total
$447,560

$10,200,960

$3,406,870

$3,884,822
NM
$2,967,446

$775,458

$684,451

$4,961,373
(1)
The Company does not manage its assets by segment and, accordingly, net investment income is not allocated to each underwriting segment. See note 4, “Segment Information,” to our consolidated financial statements in Item 8 for information related to the ‘other’ segment.
(2)
Certain other operating expenses relate to the Company’s corporate segment (non-underwriting). Such amounts are not reflected in the table above. See note 4, “Segment Information,” to our consolidated financial statements in Item 8 for information related to the corporate segment.










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SCHEDULE IV
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
REINSURANCE
(U.S. dollars in thousands)
Gross Amount Ceded to Other Companies (1) Assumed From Other Companies (1) Net
Amount
 Percentage of Amount Assumed to NetGross Amount Ceded to Other Companies (1) Assumed From Other Companies (1) Net
Amount
 Percentage of Amount Assumed to Net
Year Ended December 31, 2019         
Premiums Written:         
Insurance$3,879,752
 $(1,266,267) $28,241
 $2,641,726
 1.1%
Reinsurance238,229
 (720,500) 2,084,994
 1,602,723
 130.1%
Mortgage1,224,373
 (204,509) 241,892
 1,261,756
 19.2%
Other339,169
 (222,019) 415,712
 532,862
 78.0%
Total$5,681,523
 $(2,099,893) $2,457,437
 $6,039,067
 40.7%
Year Ended December 31, 2018                  
Premiums Written:                  
Insurance$3,232,234
 $(1,050,207) $30,098
 $2,212,125
 1.4%$3,232,234
 $(1,050,207) $30,098
 $2,212,125
 1.4%
Reinsurance213,809
 (539,950) 1,698,713
 1,372,572
 123.8%213,809
 (539,950) 1,698,713
 1,372,572
 123.8%
Mortgage1,139,099
 (202,833) 221,609
 1,157,875
 19.1%1,139,099
 (202,833) 221,609
 1,157,875
 19.1%
Other253,760
 (130,840) 481,255
 604,175
 79.7%253,760
 (130,840) 481,255
 604,175
 79.7%
Total$4,838,902
 $(1,614,257) $2,122,102
 $5,346,747
 39.7%$4,838,902
 $(1,614,257) $2,122,102
 $5,346,747
 39.7%
Year Ended December 31, 2017                  
Premiums Written:                  
Insurance$3,050,876
 $(958,646) $30,210
 $2,122,440
 1.4%$3,050,876
 $(958,646) $30,210
 $2,122,440
 1.4%
Reinsurance152,404
 (465,925) 1,487,995
 1,174,474
 126.7%152,404
 (465,925) 1,487,995
 1,174,474
 126.7%
Mortgage1,110,319
 (256,796) 257,819
 1,111,342
 23.2%1,110,319
 (256,796) 257,819
 1,111,342
 23.2%
Other133,858
 (47,187) 466,446
 553,117
 84.3%133,858
 (47,187) 466,446
 553,117
 84.3%
Total$4,447,457
 $(1,407,052) $1,920,968
 $4,961,373
 38.7%$4,447,457
 $(1,407,052) $1,920,968
 $4,961,373
 38.7%
Year Ended December 31, 2016         
Premiums Written:         
Insurance$2,999,106
 $(954,768) $27,943
 $2,072,281
 1.3%
Reinsurance62,427
 (440,541) 1,431,970
 1,053,856
 135.9%
Mortgage209,351
 (108,259) 290,374
 391,466
 74.2%
Other66,806
 (21,306) 468,288
 513,788
 91.1%
Total$3,337,690
 $(1,170,743) $1,864,444
 $4,031,391
 46.2%
(1)Certain amounts included in the gross premiums written of each segment are related to intersegment transactions and are included in the gross premiums written of each segment. Accordingly, the sum of gross premiums written for each segment does not agree to the total gross premiums written as shown in the table above due to the elimination of intersegment transactions in the total.






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SCHEDULE VI
ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES
SUPPLEMENTARY INFORMATION FOR PROPERTY AND CASUALTY INSURANCE UNDERWRITERS
(U.S. dollars in thousands)
Column AColumn BColumn CColumn DColumn EColumn FColumn GColumn HColumn IColumn JColumn K
Affiliation with RegistrantDeferred Acquisition CostsReserves for Losses and Loss Adjustment ExpensesDiscount, if any, deducted in Column CUnearned PremiumsNet
Premiums Earned
Net Investment IncomeNet Losses and Loss Adjustment Expenses Incurred Related toAmortization
of Deferred Acquisition Costs
Net Paid Losses and Loss Adjustment ExpensesNet
Premiums Written
(a) Current Year
(b)
Prior Years
Consolidated Subsidiaries           
2019$633,400
$13,891,842
$22,012
$4,339,549
$5,786,498
$627,738
$3,297,037
$(163,585)$840,945
$2,383,255
$6,039,067
2018569,574
11,853,297
21,145
3,753,636
5,231,975
563,633
3,162,818
(272,712)805,135
2,206,164
5,346,747
2017535,824
11,383,792
20,016
3,622,314
4,844,532
470,872
3,205,428
(237,982)775,458
2,352,912
4,961,373

Column AColumn BColumn CColumn DColumn EColumn FColumn GColumn HColumn IColumn JColumn K
Affiliation with RegistrantDeferred Acquisition CostsReserves for Losses and Loss Adjustment ExpensesDiscount, if any, deducted in Column CUnearned PremiumsNet
Premiums Earned
Net Investment IncomeNet Losses and Loss Adjustment Expenses Incurred Related toAmortization
of Deferred Acquisition Costs
Net Paid Losses and Loss Adjustment ExpensesNet
Premiums Written
(a) Current Year
(b)
Prior Years
Consolidated Subsidiaries           
2018$569,574
$11,853,297
$21,145
$3,753,636
$5,231,975
$563,633
$3,162,818
$(272,712)$805,135
$2,206,164
$5,346,747
2017535,824
11,383,792
20,016
3,622,314
4,844,532
470,872
3,205,428
(237,982)775,458
2,352,912
4,961,373
2016447,560
10,200,960
18,246
3,406,870
3,884,822
366,742
2,455,563
(269,964)667,625
1,813,356
4,031,391





ITEM 16.
FORM 10-K SUMMARY

Not applicable.






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