Exhibit 99.1 Tower Group, Inc. Reports a 75.1% Increase in the First Quarter 2006 Net Income NEW YORK--(BUSINESS WIRE)--May 2, 2006--Tower Group, Inc. (NASDAQ: TWGP) today reported its financial results for the first quarter of 2006 including a 75.1% increase in net income to $6.5 million as compared to net income of $3.7 million in the first quarter of 2005. Tower reported diluted earnings per share of $0.32 for the first quarter of 2006 as compared to $0.19 per share for the first quarter of 2005. During the first quarter of 2006, Tower, as a 100% owner of CastlePoint Holdings, Ltd. ("CastlePoint"), a Bermuda holding company with a reinsurance subsidiary that it sponsored, consolidated 100% of the non-recurring start up expenses of approximately $500,000 incurred by CastlePoint although its ownership in CastlePoint decreased to 8.6% on April 4, 2006 following the completion of CastlePoint's capitalization. Net income for the first quarter of 2006, excluding the effects of the non-recurring start up expenses and realized losses, net of tax, was $7.1 million or $0.35 per share. - -- Net Income, first quarter of 2006 $6.5 million - -- Realized Losses, net of tax $0.1 - -- Non-recurring CastlePoint start up costs $0.5 ----- - -- Net Income, excluding realized losses, net of tax, and CastlePoint startup costs $7.1 million Michael H. Lee, President and Chief Executive Officer of Tower Group, Inc. commented, "Tower had another solid quarter and a strong start to 2006 driven by gains in gross and net premiums written while maintaining our disciplined underwriting approach. Excluding the effects of non-recurring start-up expenses associated with CastlePoint, our earnings exceeded the guidance we provided on our last earnings call, and our return on equity continued to improve. We were successful during the first quarter in forming CastlePoint and expect our investment to contribute to the long term success of Tower Group. We continued to focus on the markets that demand our products, and in order to meet those demands, we have strengthened our growth and return on equity focused business model." First Quarter 2006 Financial Highlights: Total revenues increased 66.8% to $71.2 million in the first quarter of 2006 as compared to $42.7 million in the prior year's first quarter. The improvement is primarily due to the increase in net premiums earned and net investment income. Net premiums earned represented 80.4% of total revenues for the three months ended March 31, 2006 compared to 70.3% for the same period in 2005. Net investment income, excluding realized capital losses or gains, represented 6.5% and 6.1% of total revenues for the three months ended March 31, 2006 and March 31, 2005, respectively. These increases were partially offset by lower total commission and fee income for the three months ended March 31, 2006 of $9.4 million, or 13.2% of total revenue, compared to $9.8 million, or 23.0% of total revenue, for the same period in 2005. During the three months ended March 31, 2006 there were net realized capital losses of $145,000 from the sale of automotive credit bonds and other securities as compared to net realized capital gains of $209,000 for the same period of 2005. Return on average equity was 17.7% in the first quarter of 2006 as compared with 11.5% in the first quarter of 2005. The returns on average equity for each of the first quarter of 2006 and first quarter of 2005 were calculated by dividing annualized net income by average shareholders' equity of $146.9 million and $129.6 million, respectively. Excluding the effect of certain non-recurring start up expenses relating to our sponsoring CastlePoint, our net income and return on average equity would have been $7.0 million and 19.0%, respectively, in the first quarter of 2006. Gross premiums written in the insurance and reinsurance segments increased to $87.4 million in the first quarter, which was 35.1% higher than in the first quarter of 2005. This growth was driven by a 25.2% increase in policies in force and premium increases on renewed business which averaged 7.5% for personal lines and 5.3% for commercial lines. Premiums produced by the managing general agency decreased to $4.0 million in the first quarter of 2006, or a decrease of 52.3% from the first quarter of 2005. The decrease was primarily due to decreases in premiums produced by the managing general agency on behalf of its issuing companies as more policies previously produced for the issuing companies were renewed in the insurance operations. Net premiums written increased 82.7% to $82.9 million in the first quarter of 2006 as compared to $45.4 million in the same period of 2005. The increase was driven by the growth in gross premiums written and the absence of quota share reinsurance with respect to policies that began in 2006 compared to the quota share ceding percentage of 25% during the first three months of 2005. Tower did not purchase any quota share reinsurance in the first quarter in anticipation of its agreement with CastlePoint's reinsurance subsidiary, CastlePoint Reinsurance Company. Net premiums earned rose 90.7% to $57.3 million for the first quarter of 2006 as compared to $30.0 million in the same quarter of 2005 due to overall growth in gross premiums written and the absence of quota share reinsurance for policies that began in 2006 as mentioned above. Ceding commission revenue increased 24.9% to $7.3 million in the first quarter of 2006 as compared to $5.8 million in the first quarter of 2005 reflecting growth in ceded premiums written in 2005, which were continuing to be earned in 2006. The net loss ratio improved to 58.0% for the first quarter of 2006 as compared to 60.2% in the first quarter of 2005. The improvement in the net loss ratio in the first quarter of 2006 compared to the same period in 2005 was due primarily to an increase in net premiums earned that reduced the effect of catastrophe reinsurance premiums on the net loss ratio, and to favorable development on prior accident years' reserves. The gross expense ratio decreased to 30.5% in the first quarter of 2006 as compared to 31.3% in the first quarter of 2005. The net expense ratio decreased to 28.1% in the first quarter of 2006 as compared to 28.3% the same period in 2005. The net combined ratio decreased to 86.1% in the first quarter of 2006 from 88.5% in the same period in the prior year. Pre-tax income in our insurance services segment decreased to $34,000 in the first quarter of 2006 from $1.0 million in the same quarter of 2005 as a result of the decrease in premiums produced and an unfavorable adjustment in direct commission revenue of $348,000 in the first quarter of 2006 due to unfavorable loss development on premiums produced in prior years; this compares to a favorable adjustment in direct commission revenue of $491,000 in the first quarter of 2005 due to favorable loss development on premiums produced in prior years. Net investment income increased by 78.2% to $4.7 million for the three months ended March 31, 2006 compared to $2.6 million for the same period in 2005. This resulted from an increase in invested assets to $379.6 million as of March 31, 2006 compared to $281.6 million as of March 31, 2005, excluding our investments in statutory business trusts underlying our trust preferred securities. Net cash flows provided by operations of $38.8 million contributed to the increase in invested assets during the three months ended March 31, 2006. On a tax equivalent basis, the yield was 5.4% as of March 31, 2006 compared to 5.1% as of March 31, 2005. Our interest expense increased for the three months ended March 31, 2006 to $1.4 million compared to $1.2 million for the same period in 2005. The increase resulted from an increase in interest expense of $113,000 on subordinated debentures underlying our trust preferred securities and $72,000 as a result of crediting reinsurers on funds withheld in segregated trusts as collateral for reinsurance recoverables. The effective income tax rate was 35.8% for the three months ending March 31, 2006 compared to 35.2% for the same period in 2005. The effective tax rate in 2006 was higher due to certain non-recurring organizational and start up costs relating to our sponsoring CastlePoint that are not deductible for tax purposes. The effective tax rate of the first three months of 2006 would have been 34.3% excluding the effects of the non-recurring expenses. First Quarter Highlights ($ in thousands, except per share amounts) First Quarter 2006 First Quarter 2005 ------------------ ------------------ Total Underwriting Profit $7,963 $3,457 Insurance Services Segment Pre- Tax Income 34 1,040 Net Investment Income 4,660 2,615 Net Realized Investment (Losses) Gains (145) 209 Corporate Expenses (1,014) (422) Interest Expense (1,350) (1,165) Income Before Income Taxes 10,148 5,734 Income Tax Expense (3,638) (2,017) Net Income $6,510 $3,717 EPS - Basic $0.33 $0.19 EPS - Diluted $0.32 $0.19 Additional Highlights and Disclosures: Sponsoring a Bermuda Holding Company Tower's financial statements as of March 31, 2006 include the consolidation of CastlePoint, a Bermuda based holding company that Tower sponsored with an initial investment of $15 million on February 6, 2006. On April 4, 2006, CastlePoint was capitalized with $265 million in a private offering. Following the capitalization of CastlePoint, Tower's ownership stands at 8.6%. In addition, Tower has been issued warrants to purchase CastlePoint's common shares that would have resulted in an additional 3.7% of ownership if they had been exercised on April 4, 2006. The warrants are exercisable at any time up to the tenth anniversary of the warrant issuance. CastlePoint was a wholly owned subsidiary of Tower during the first quarter of 2006, and therefore Tower consolidated CastlePoint at March 31, 2006. The quarter ended March 31, 2006 includes approximately $500,000 of non-recurring start up costs incurred by CastlePoint. Subordinated Debentures On March 31, 2006, Tower Group Statutory Trust V (the "Trust"), an affiliated Delaware trust, issued $20,000,000 of fixed/floating rate capital securities (the "Trust Preferred Securities") in a private placement. The Trust Preferred Securities mature in April 2036, are redeemable at the Trust's option at par beginning April 7, 2011, and require quarterly distributions of interest by the Trust to the holder of the Trust Preferred Securities. Distributions are initially at a fixed rate of 8.5625% for the first five years and will then reset quarterly for changes in the three-month London Interbank Offered Rate ("LIBOR") rate plus 330 basis points. The net proceeds to Tower from the sale of the debenture to the Trust will be used by Tower to acquire and capitalize a shell insurance company with multi-state licensing and for working capital purposes. Dividend Declaration Tower Group, Inc. announced today that the Company's Board of Directors has approved a quarterly dividend of $0.025 per share payable June 27, 2006 to stockholders of record as of June 15, 2006. 2006 Guidance We believe we are well positioned to support our premium growth and to generate commission and fee income to augment our return on equity. For the second quarter of 2006, we project net income to increase to a range between $7.5 million and $7.9 million. We project Tower's diluted earnings per share in the second quarter to be in the range between $0.37 and $0.39 per diluted share. For the full year, we anticipate net income to be in a range between $32.0 million and $34.0 million, and diluted earnings per share to be between $1.58 and $1.68 for the year. About Tower Group, Inc. Tower Group, Inc., headquartered in New York City, offers property and casualty insurance products and services through its insurance company and insurance service subsidiaries. Its two insurance company subsidiaries are Tower Insurance Company of New York which is rated A- (Excellent) by A.M. Best Company and Tower National Insurance Company which is also rated A- (Excellent) by A.M. Best Company. Both subsidiaries offer commercial insurance products to small to medium-size businesses and personal insurance products to individuals. Its insurance services subsidiary, Tower Risk Management, acts as a managing general agency, adjusts claims and negotiates reinsurance terms on behalf of other insurance companies. Cautionary Note Regarding Forward-Looking Statements The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking statements. This release or any other written or oral statements made by or on behalf of the Company may include forward-looking statements that reflect the Company's current views with respect to future events and financial performance. All statements other than statements of historical fact included in this release are forward-looking statements. Forward-looking statements can generally be identified by the use of forward-looking terminology such as "may," "will," "plan," "expect," "intend," "estimate," "anticipate," "believe," "project" or "continue" or their negative or variations or similar terminology. All forward-looking statements address matters that involve risks and uncertainties. Accordingly, there are or will be important factors that could cause our actual results to differ materially from those indicated in these statements. We believe that these factors include but are not limited to ineffectiveness or obsolescence of our business strategy due to changes in current or future market conditions; increased competition on the basis of pricing, capacity, coverage terms or other factors; greater frequency or severity of claims and loss activity, including as a result of natural or man-made catastrophic events, than our underwriting, reserving or investment practices anticipate based on historical experience or industry data; the effects of acts of terrorism or war; developments in the world's financial and capital markets that adversely affect the performance of our investments; changes in regulations or laws applicable to us, our subsidiaries, brokers or customers; changes in the level of demand for our insurance and reinsurance products and services, including new products and services; changes in the availability, cost or quality of reinsurance and failure of our reinsurers to pay claims timely or at all; loss of the services of any of our executive officers or other key personnel; the effects of mergers, acquisitions and divestitures; changes in rating agency policies or practices; changes in legal theories of liability under our insurance policies; changes in accounting policies or practices; and changes in general economic conditions, including inflation and other factors. Forward-looking statements speak only as of the date on which they are made, and the Company undertakes no obligation to update publicly or revise any forward-looking statement, whether as a result of new information, future developments or otherwise. For more information visit Tower's website at http://www.twrgrp.com/. Insurance Overall Results of Operations Insurance and Reinsurance Segments First Quarter Three Months Ended March 31 2006 2005 % Change -------- -------- --------- ($ in thousands) Revenues Premiums earned Gross premiums earned $76,616 $45,868 67.0% Less: Ceded premiums earned (19,360) (15,850) 22.1% Net premiums earned 57,256 30,018 90.7% Ceding commission revenue 7,302 5,846 24.9% Policy billing fees 267 196 36.2% Total 64,825 36,060 79.8% Expenses Loss and loss adjustment expenses Gross loss and loss adjustment expenses $43,312 $26,078 66.1% Less: Ceded loss and loss adjustment expenses (10,102) (8,016) 26.0% Net loss and loss adjustment expenses 33,210 18,062 83.9% Underwriting Expenses Commissions paid to producers 12,477 7,581 64.6% Other underwriting expenses 11,175 6,960 60.6% Total 23,652 14,541 62.7% Underwriting Profit $7,963 $3,457 130.3% Key Measures Premiums Written Gross $87,373 $64,668 35.1% Ceded (4,495) (19,307) -76.7% Net 82,878 45,361 82.7% Loss ratios Gross 56.5% 56.9% Net 58.0% 60.2% Accident Year Loss Ratio Gross 57.6% 57.9% Net 58.9% 60.1% Expense ratios Gross 30.5% 31.3% Net 28.1% 28.3% Combined ratios (GAAP) Gross 87.0% 88.2% Net 86.1% 88.5% Insurance Services Segment Results of Operations First Quarter Three Months Ended March 31 2006 2005 % Change ------- ------- --------- ($ in thousands) Revenue Direct commission revenue from managing general agency $806 $2,525 -68.1% Claims administration revenue 962 1,053 -8.6% Reinsurance intermediary fees (1) 61 203 -70.0% Policy billing fees 3 5 0.0% --------------- Total Revenues 1,832 3,786 -51.6% --------------- Expenses Direct commission expense paid to producers $603 $1,211 -50.2% Other insurance services expenses (2) 237 485 -51.1% Claims expense reimbursement to TICNY 958 1,050 -8.8% --------------- Total Expenses 1,798 2,746 -34.5% --------------- --------------- Insurance Services Pre-tax Income $34 $1,040 -96.7% =============== Premiums produced by TRM on behalf of issuing companies $4,028 $8,444 -52.3% (1) The reinsurance intermediary fees include commissions earned for placement of reinsurance on behalf of TICNY. (2) These are underwriting expenses reimbursed to TICNY pursuant to an expense sharing agreement. Tower Group, Inc. Consolidated Balance Sheet (Unaudited) March 31, December 31, 2006 2005 ------------ ------------ ($ in thousands, except par value and share amounts) Assets Fixed-maturity securities, available-for- sale, at fair value (amortized cost $356,440 in 2006 and $331,123 in 2005) $ 348,536 $ 326,681 Equity securities, available-for-sale, at fair value (cost $6,681 in 2006 and $6,681 in 2005) 6,284 5,934 Equity securities, at cost 24,802 24,558 Common trust securities - statutory business trusts, equity method 2,045 1,426 ----------- ----------- Total investments 381,667 358,599 Cash and cash equivalents 71,720 38,760 Investment income receivable 3,564 3,337 Agents' balances receivable 41,659 46,004 Assumed premiums receivable 3,486 1,076 Ceding commission receivable 8,727 8,727 Reinsurance recoverable 106,325 104,811 Receivable - claims paid by agency 2,252 2,309 Prepaid reinsurance premiums 28,375 43,319 Deferred acquisition costs net of deferred ceding commission revenue 38,790 29,192 State income taxes recoverable 297 365 Deferred income taxes 2,480 3,204 Intangible assets 5,732 5,835 Fixed assets, net of accumulated depreciation 8,398 7,920 Other assets 6,076 3,999 ----------- ----------- Total Assets $ 709,548 $ 657,457 =========== =========== Liabilities Loss and loss adjustment expenses $ 219,927 $ 198,724 Unearned premium 168,456 157,779 Reinsurance balances payable 9,452 19,200 Payable to issuing carriers 6,029 5,252 Funds held as agent 8,195 8,191 Funds held under reinsurance agreements 62,157 59,042 Accounts payable and accrued expenses 12,243 13,694 Payable for securities 1,939 - Other liabilities 2,867 2,867 Federal income taxes payable 1,312 460 Subordinated debentures 68,045 47,426 ----------- ----------- Total Liabilities 560,622 512,635 ----------- ----------- Stockholders' Equity Common stock ($0.01 par value per share; 40,000,000 shares authorized; 19,907,498 and 19,872,672 shares issued in 2006 and 2005) 199 199 Paid-in-capital 111,326 111,066 Accumulated other comprehensive net income (5,525) (3,352) Retained earnings 43,036 37,019 Treasury stock (17,881 shares in 2006 and in 2005) (110) (110) ----------- ----------- Total Stockholders' Equity 148,926 144,822 ----------- ----------- Total Liabilities and Stockholders' Equity $ 709,548 $ 657,457 =========== =========== Tower Group, Inc. Consolidated Statements of Income and Comprehensive Net Income (Unaudited) Three Months Ended March 31, 2006 2005 ----------- ----------- ($ in thousands, except share and per share amounts) Revenues Net premiums earned $ 57,256 $ 30,018 Ceding commission revenue 7,302 5,846 Insurance services revenue 1,829 3,781 Net investment income 4,660 2,615 Net realized (losses) gains on investments (145) 209 Policy billing fees 270 201 ----------- ----------- Total revenues 71,172 42,670 ----------- ----------- Expenses Loss and loss adjustment expenses 33,210 18,062 Direct commission expense 13,080 8,792 Other operating expenses 13,384 8,917 Interest expense 1,350 1,165 ----------- ----------- Total expenses 61,024 36,936 ----------- ----------- Income before income taxes 10,148 5,734 Income tax expense 3,638 2,017 ----------- ----------- Net income $ 6,510 $ 3,717 =========== =========== Comprehensive Net Income Net income $ 6,510 $ 3,717 Other comprehensive income: Gross unrealized investment holding losses arising during period (3,399) (4,486) Less: reclassification adjustment for losses (gains) included in net income 145 (209) ----------- ----------- (3,254) (4,695) Income tax benefit related to items of other comprehensive income 1,081 1,644 ----------- ----------- Total other comprehensive net loss (2,173) (3,051) ----------- ----------- Comprehensive Net Income $ 4,337 $ 666 =========== =========== Earnings Per Share Basic earnings per common share $ 0.33 $ 0.19 =========== =========== Diluted earnings per common share $ 0.32 $ 0.19 =========== =========== Weighted Average Common Shares Outstanding: Basic 19,684,902 19,521,111 Diluted 20,212,344 20,076,884 CONTACT: Tower Group, Inc. Thomas Song, 212-655-4789 tsong@twrgrp.com or Investor Relations: Makovsky + Company Gene Marbach, 212-508-9600 gmarbach@makovsky.com