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(1)

The Madison Tyler Transactions occurred on July 8, 2011, and as a result the consolidated statementPrimarily reflects approximately $12.3 million of comprehensive income data for the year ended December 31, 2011 are not necessarily comparable to the consolidated statement of comprehensive income data for eachcompensation expense in respect of the other historical periods presented. See "Management's Discussion and Analysistime-based vesting of pre-IPO Class B interests in Virtu Financial Condition and Resultsvesting upon the consummation of Operations — Components of Our Operating Results — Acquisition and Purchase Accounting — Madison Tyler Transactions.this offering.

(2)

In connection with the Madison Tyler Transactions, we borrowedVirtu Financial entered into a $320.0 million under our original senior secured credit facility, which was subsequently refinanced. A portion of certain financing costs incurred in connection with the original credit facility that were scheduled to be amortized over the five-year term of the loan, including original issue discount and underwriting and legal fees, were accelerated and recognized at the closing of the refinancing.

(3)

Initial public offering fees and expenses reflect costs directly attributable to the Company's initial public offering process, which was postponed in April 2014. The Company accounted for such costs in accordance with ASC 340-10,Other Assets and Deferred Costs. ASC 340 states that costs directly attributable to a successfully completed offering of equity securities may be deferred and charged against the gross proceeds of the offering as a reduction of additional paid-in capital, but for an offering postponed for a period greater than 90 days, the offering costs must be charged as an expense in the period the offering process was postponed.

(4)

Transaction advisory fees reflect professional fees incurred by the Company in connection with the Temasek Transaction (as defined below), which was consummated on December 31, 2014.

(5)

The Class A-1 interests of Virtu Financial are convertible by the holders at any time into an equivalent number of Class A-2 capital interests of Virtu Financial and, in a sale or other specified capital transaction, holders are entitled to receive distributions up to specified preference amounts before holders of Class A-2 capital interests are entitled to receive distributions. In connection with the reorganization transactions, all of the existing equity interests in Virtu Financial will be reclassified into Virtu Financial Units. See "Organizational Structure — The Reorganization Transactions."

(4)(6)

"Adjusted Net Income" measures our operating performance by adjusting net income to exclude amortization of purchased intangibles and acquired capitalized software, debt issue cost related to debt refinancing, impairment of intangible assets, lease abandonment, acquisition cost, terminated transaction fees and expenses, initial public offering fees and expenses, transaction advisory fees and expenses, expenses associated with termination of London leases, severance, acquisition related retention bonus and stock-based compensation expense. "EBITDA" measures our operating performance by adjusting net income to exclude financing interest expense on senior secured credit facility, debt issue cost related to debt refinancing, depreciation and amortization, amortization of purchased intangibles and acquired capitalized software and income tax expense, and "Adjusted EBITDA" measures our operating performance by further adjusting EBITDA to exclude impairment of intangible assets, lease abandonment, terminated transaction fees and expenses, initial public offering fees and expenses, transaction advisory fees and expenses, expenses associated with termination of London leases, severance, acquisition related retention bonus and stock-based compensation expense. Adjusted Net Income, EBITDA and Adjusted EBITDA are non-GAAP financial measures used by management in evaluating operating performance and in making strategic decisions. In addition, Adjusted Net Income, EBITDA and Adjusted EBITDA or similar non-GAAP measures are used by research analysts, investment bankers and lenders to assess our operating performance. Management believes that the presentation of Adjusted Net Income, EBITDA and Adjusted EBITDA provides useful information to investors regarding our results of operations because it assists both investors and management in analyzing and benchmarking the performance and value of our business. Adjusted Net Income, EBITDA and Adjusted EBITDA provide indicators of general economic performance that are not affected by fluctuations in certain costs or other items. Accordingly, management believes that these measurements are useful for comparing general operating performance from period to period. Furthermore, our credit agreement contains covenants and other tests based on metrics similar to Adjusted EBITDA. Other companies may define Adjusted Net Income or Adjusted EBITDA differently, and as a result our measures of Adjusted Net Income and Adjusted EBITDA may not be directly comparable to those of other companies. Although we use Adjusted Net Income, EBITDA and Adjusted EBITDA as financial measures to assess the performance of our business, such use is limited because they do not include certain material costs necessary to operate our business. Adjusted Net Income, EBITDA and Adjusted EBITDA should be considered in addition to, and not as a substitute for,

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(5)(7)

"Adjusted Net Trading Income" is the amount of revenue we generate from our market making activities, or trading income, net, plus interest and dividends income and expense, net, less direct costs associated with those revenues, including brokerage, exchange and clearance fees, net. Rather than analyzing these components of our operating results individually, we generally view them on an aggregate basis in the context of Adjusted Net Trading Income. Adjusted Net Trading Income is a non-GAAP financial measure. Our total Adjusted Net Trading Income is the primary metric used by management in evaluating performance, making strategic decisions and allocating resources, and the primary factor influencing Adjusted Net Trading Income is volume levels. Management believes that the presentation of Adjusted Net Trading Income provides useful information to investors regarding our results of operations because it assists both investors and management in analyzing and benchmarking the performance and value of our business. Adjusted Net Trading Income provides an indicator of the performance of our market making activities that is not affected by revenues or expenses that are not directly associated with such activities. Accordingly, management believes that this measurement is useful for comparing general operating performance from period to period. Although we use Adjusted Net Trading Income as a financial measure to assess the performance of our business, the use of Adjusted Net Trading Income is limited because it does not include certain material costs that are necessary to operate our business. Adjusted Net Trading Income should be considered in addition to, and not as a substitute for, trading income, net, in accordance with U.S. GAAP as a measure of performance. Our presentation of Adjusted Net Trading Income should not be construed as an indication that our future results will be unaffected by revenues or expenses that are not directly associated with our market making activities. Adjusted Net Trading Income is limited as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results as reported under U.S. GAAP. Our U.S. GAAP-based measures can be found in our consolidated financial statements and related notes included elsewhere in this prospectus.

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          The following table shows our Adjusted Net Trading Income, average daily Adjusted Net Trading Income and percentage of Adjusted Net Trading Income by asset class for the years ended December 31, 2014, 2013 2012 and 2011.2012.

(8)

We calculate "operating margin" by dividing Adjusted Net Income by Adjusted Net Trading Income. We calculate "Adjusted EBITDA margin" by dividing Adjusted EBITDA by Adjusted Net Trading Income. Operating margin and Adjusted EBITDA margin are non-GAAP financial measures used by management in evaluating operating performance and in making strategic decisions. Other companies may define operating margin and Adjusted EBITDA margin differently, and as a result our measures may not be directly comparable to those of other companies. These measures should be considered in addition to, rather than as a substitute for, the comparable U.S. GAAP financial measures as measures of our operating performance.

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RISK FACTORS

          Investing in our Class A common stock involves substantial risks. In addition to the other information in this prospectus, you should carefully consider the following factors before investing in our Class A common stock. Any of the risk factors we describe below could have a material adverse effect on our business, financial condition or results of operations. The market price of our Class A common stock could decline if one or more of these risks or uncertainties develop into actual events, causing you to lose all or part of your investment. While we believe these risks and uncertainties are especially important for you to consider, we may face other risks and uncertainties that could have a material adverse effect on our business. Certain statements contained in the risk factors described below are forward-looking statements. See "Forward-Looking Statements" for more information.

Risks Related to Our Business

Because our revenues and profitability depend on trading volume and volatility in the markets in which we operate, they are subject to factors beyond our control, are prone to significant fluctuations and are difficult to predict.

          Our revenues and profitability depend in part on the level of trading activity of securities, derivatives and other financial products on exchanges and in other trading venues in the U.S. and abroad, which are directly affected by factors beyond our control, including economic and political conditions, broad trends in business and finance and changes in the markets in which such transactions occur. Weaknesses in the markets in which we operate, including economic slowdowns in recent years, have historically resulted in reduced trading volumes for us. Declines in trading volumes generally result in lower revenues from market making and transaction execution activities. Lower levels of volatility generally have the same directional impact. Declines in market values of securities or other financial instruments can also result in illiquid markets, which can also result in lower revenues and profitability from market making and transaction execution activities. Lower price levels of securities and other financial instruments, as well as compressed bid/ask spreads, which often follow lower pricing, can further result in reduced revenues and profitability. These factors can also increase the potential for losses on securities or other financial instruments held in inventory and failures of buyers and sellers to fulfill their obligations and settle their trades, as well as claims and litigation. Any of the foregoing factors could have a material adverse effect on our business, financial condition and results of operations. In the past, our revenues and operating results have varied significantly from period to period due primarily to movements and trends in the underlying markets and to fluctuations in trading volumes and volatility levels. As a result, period to period comparisons of our revenues and operating results may not be meaningful, and future revenues and profitability may be subject to significant fluctuations or declines.

We are dependent upon our trading counterparties and clearing houses to perform their obligations to us.

          Our business consists of providing consistent two-sided liquidity to market participants across numerous geographies and asset classes. In the event of a systemic market event, resulting from large price movements or otherwise, certain market participants may not be able to meet their obligations to their trading counterparties, who, in turn, may not be able to meet their obligations to their other trading counterparties, which could lead to major defaults by one or more market participants. Following the implementation of certain mandates under the Dodd-Frank Wall Street Reform and Consumer Protection Act (the "Dodd-Frank Act") in the U.S. and similar legislation worldwide, many trades in the securities and futures markets, and an increasing number of trades in the over-the-counter derivatives markets, are cleared through central counterparties. These central counterparties assume, and specialize in managing, counterparty performance risk relating

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to such trades. However, even when trades are cleared in this manner, there can be no assurance that a clearing house's risk management methodology will be adequate to manage one or more defaults. Given the concentration of counterparty performance risk that is concentrated in central clearing parties, any failure by a clearing house to properly manage a

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default could lead to a systemic market failure. If our trading counterparties do not meet their obligations to us, or if any central clearing parties fail to properly manage defaults by market participants, we could suffer a material adverse effect on our business, financial condition and results of operations.

We may incur losses in our market making activities in the event of failures of our customized trading platform.

          The success of our market making business is substantially dependent on the accuracy and performance of our customized trading platform, which evaluates and monitors the risks inherent in our market making strategies, assimilates market data and reevaluates our outstanding quotes continuously throughout the trading day. Our strategies are designed to automatically rebalance our positions throughout the trading day to manage risk exposures on our positions. Flaws in our strategies, latencies or inaccuracies in the market data that we use to generate our quotes, or human error in managing risk parameters or other strategy inputs, may lead to unexpected and unprofitable trades, which may result in material trading losses and could have a material adverse effect on our business, financial condition and results of operations.

We may incur material trading losses from our market making activities.

          A significant portion of our revenues and operating profits are derived from our trading as principal in our role as a formal or registered market maker and liquidity provider on various exchanges and markets, including as a designated market maker ("DMM") on the New York Stock Exchange. We may incur trading losses relating to these activities since each primarily involves the purchase, sale or short sale of securities, futures and other financial instruments for our own account. In any period, we may incur significant trading losses for a variety of reasons, including price changes, lack of liquidity in instruments in which we have positions and the required performance of our market making obligations. Furthermore, we may from time to time develop large position concentrations in securities or other financial instruments of a single issuer or issuers engaged in a specific industry, or alternatively a single future or other financial instrument, which would result in the risk of higher trading losses than if our concentration were lower.

          These risks may limit or restrict, for example, our ability to either resell securities we have purchased or to repurchase securities we have sold. In addition, we may experience difficulty borrowing securities to make delivery to purchasers to whom we have sold securities short or lenders from whom we have borrowed securities.

          In our role as a market maker, we attempt to derive a profit from bid/ask spreads. However, competitive forces often require us to match or improve upon the quotes that other market makers display, thereby narrowing bid/ask spreads, and to hold long or short positions in securities, futures or other financial instruments. We cannot assure you that we will be able to manage these risks successfully or that we will not experience significant losses from such activities, which could have a material adverse effect on our business, financial condition and results of operations.

          Our risk management activities utilize a four-pronged approach, consisting of strategy lockdowns, centralized strategy monitoring, aggregate exposure monitoring and operational controls. In particular, messages that leave our trading environment first must pass through a series of preset risk controls or "lockdowns" that are intended to minimize the likelihood of unintended activities. In certain cases this layer of risk management, which adds a layer of latency to our process, may limit our ability to profit from acute volatility in the markets. This would be the case,

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for example, where a particular strategy being utilized by one of our traders is temporarily locked down for generating revenue in excess of the preset risk limit. Even if we are able to quickly and correctly identify the reasons for a lockdown and quickly resume the trading strategy, we may limit our potential upside as a result of our risk management policies.

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The valuation of the securities we hold at any particular time may result in large and occasionally anomalous swings in the value of our positions and in our earnings in any period.

          The market prices of our long and short positions are reflected on our books at closing prices, which are typically the last trade prices before the official close of the primary exchange on which each such security trades. Given that we manage a globally integrated portfolio, we may have large and substantially offsetting positions in securities that trade on different exchanges that close at different times of the trading day and may be denominated in different currencies. Further, there may be large and occasionally anomalous swings in the value of our positions on any particular day and in our earnings in any period. Such swings may be especially pronounced on the last business day of each calendar quarter, as the discrepancy in official closing prices resulting from the asynchronous closing times may cause us to recognize a gain or loss in one quarter which would be substantially offset by a corresponding loss or gain in the following quarter.

We are exposed to losses due to lack of perfect information.

          As a market maker, we provide liquidity by consistently buying securities from sellers and selling securities to buyers. We may at times trade with others who have information that is more accurate or complete than the information we have, and as a result we may accumulate unfavorable positions preceding large price movements in a given instrument. Should the frequency or magnitude of these events increase, our losses would likely increase correspondingly, which could have a material adverse effect on our business, financial condition and results of operations.

We face competition in our market making activities.

          Revenues from our market making activities depend on our ability to offer to buy and sell financial instruments at prices that are attractive and represent the best bid and/or offer in a given instrument at a given time. To attract order flow, we compete with other firms not only on our ability to provide liquidity at competitive prices, but also on other factors such as order execution speed and technology. Our competitors include other registered market makers as well as unregulated or lesser-regulated trading firms that also compete to provide liquidity. Our competitors range from sole proprietors with very limited resources to highly sophisticated groups, hedge funds, well-capitalized broker-dealers and proprietary trading firms or other market makers that have substantially greater financial and other resources than we do. These larger and better capitalized competitors may be better able to respond to changes in the market making industry, to compete for skilled professionals, to finance acquisitions, to fund internal growth, to manage costs and expenses and to compete for market share generally. Trading firms that are not registered as broker-dealers or broker-dealers not registered as market makers may in some instances have certain advantages over more regulated firms, including our subsidiaries, that may allow them to bypass regulatory restrictions and trade more cheaply than more regulated participants on some markets or exchanges. In addition, we may in the future face enhanced competition from new market participants that may also have substantially greater financial and other resources than we do, which may result in compressed bid/ask spreads in the marketplace that may negatively impact our financial performance. Moreover, current and potential competitors may establish cooperative relationships among themselves or with third parties or may consolidate to enhance their services and products. The trend toward increased competition in our business is expected to continue, and it is possible that our competitors may acquire increased market share. Increased competition or

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consolidation in the marketplace could reduce the bid/ask spreads on which our business and profitability depend. As a result, there can be no assurance that we will be able to compete effectively with current or future competitors, which could have a material adverse effect on our business, financial condition and results of operations.

We are subject to liquidity risk in our operations.

          We require liquidity to fund various ongoing obligations, including operating expenses, capital expenditures, debt service and dividend payments. Our main sources of liquidity are cash flow from

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the operations of our subsidiaries, our broker-dealer revolving credit facility (described under "Management's Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Credit Facilities"), margin financing provided by our prime brokers and cash on hand. Our liquidity could be materially impaired by a number of factors, including reduced business activity due to a market downturn, adverse regulatory action or a downgrade of our credit rating. If our business activities decrease or we are unable to borrow additional funds in the future on terms that are acceptable to us, or at all, we could suffer a material adverse effect on our business, financial condition and results of operations.

Self-clearing and other elements of our trade processing operations expose us to significant operational, financial and liquidity risks.

          We currently self-clear substantially all of our domestic equity trades and may expand our self-clearing operations internationally and across product offerings and asset classes in the future. Self-clearing exposes our business to operational risks, including business disruption, operational inefficiencies, liquidity, financing risks, counterparty performance risk and potentially increased expenses and lost revenue opportunities. While our clearing platform, operational processes, risk methodologies, enhanced infrastructure and current and future financing arrangements have been carefully designed, we may nevertheless encounter difficulties that may lead to operating inefficiencies, including delays in implementation, disruption in the infrastructure that supports the business, inadequate liquidity and financial loss. Any such delay, disruption or failure could negatively impact our ability to effect transactions and manage our exposure to risk and could have a material adverse effect on our business, financial condition and results of operations.

Rules governing designated market makers may require us to make unprofitable trades or prevent us from making profitable trades from time to time.

          DMMs are granted certain rights and have certain obligations to "make a market" in a particular security. They agree to specific obligations that are designed to maintain a fair and orderly market. In acting as a DMM, we are subject to a high degree of risk by having to support an orderly market. In this role, we may at times be required to make trades that negatively impact our profitability. In addition, we may at times be unable to trade for our own account in circumstances in which it may be to our advantage to trade, and we may be obligated to act as a principal when buying and selling interest is unbalanced. In those instances, we may take a position counter to the market, buying or selling securities to support an orderly market. Additionally, the rules of the markets that govern our activities as a DMM and the interpretations of such rules are subject to change. If these rules or interpretations impose new or more stringent obligations on us, our trading revenues and profits as a DMM could be negatively impacted and we could suffer a material adverse effect on our business, financial condition and results of operations.

Regulatory and legal uncertainties could harm our business.

          Securities and derivatives businesses are heavily regulated. Firms in the financial services industry have been subject to an increasingly regulated environment over recent years, and

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penalties and fines sought by regulatory authorities have increased considerably. ThisIn addition, following recent news media attention to electronic trading and market structure, this regulatory and enforcement environment has created uncertainty with respect to various types of transactions that historically had been entered into by financial services firms and that were generally believed to be permissible and appropriate. "High frequency" and other forms of low latency or electronic trading strategies continue to be the focus of extensive regulatory scrutiny by federal, state and foreign regulators and self-regulatory organizations ("SROs"), and such scrutiny is likely to continue. While we do not engage in the type of principal investing or predictive, momentum or signal trading that are often associated with high frequency trading, our market making and trading activities are characterized by substantial volumes, an emphasis on technology and certain other characteristics that are also commonly associated with high frequency trading. Specifically, both the SEC and the Commodity Futures Trading Commission ("CFTC") have issued general concept releases on

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market structure requesting comment from market participants on topics including, among others, high frequency trading, co-location, dark liquidity pre- and post-trade risk controls and system safeguards. The SEC has adopted rules that, among other results, have significantly limited the use of sponsored access by market participants to the U.S. equities exchanges, imposed large trader reporting requirements, restricted short sales in listed securities under certain conditions and required the planning and creation of a new comprehensive consolidated audit trail. The SEC has also approved by order a proposal adopted by the Financial Industry Regulatory Authority, Inc. ("FINRA") establishing a "Limit Up-Limit Down" mechanism to address market volatility.

          In addition, certain market participants, SROs, government officials and regulators have requested that the U.S. Congress and the SEC propose and adopt additional laws and rules, including rules relating to restrictions on co-location, order-to-execution ratios, minimum quote life for orders, incremental messaging fees to be imposed by exchanges for "excessive" order placements and/or cancellations, further transaction taxes, tick sizes and other market structure proposals. TheFor example, the SEC recently proposedadopted Regulation SCI, which could impose significant compliance and other costs on market centers that may have to pass such costs on to their users, including us, and could impact our future business plans of establishing a market center to avoid or reduce market center costs for certain of our transactions. Similarly, the consolidated audit trail, which the SEC is requiringhas required the SROs to propose a plan for and will require them to implement, is expected to entail significant costs both on market centers, which may pass these costs along to their users, and broker-dealers directly. In February 2015, the NYSE proposed a new rule to conduct a daily single-priced auction at a specified time in lower volume securities ("Midday Auction"). Beginning at a specified time, the NYSE would pause trading in the Midday Auction, suspend automatic executions and publish a zero quote on both the public and proprietary data feeds. If adopted, the new rule could result in reduced opportunities for liquidity providers to provide liquidity in such lower-volume securities outside the Midday Auction while reducing spreads during the Midday Auction. The SEC also required that the SROs propose a pilot program to increase the minimum trading increment, or "tick size," for certain securities. The proposed pilot program would include a "trade at" component, requiring that certain of these transactions occur only on an exchange. If adopted as proposed and not accompanied by a reduction in the fees paid to access liquidity on exchanges, the trade at requirement may increase the costs for certain of our transactions. Finally, the SEC has recently proposed amendments to regulations that would require our registered broker dealer to become a member of FINRA, which, if adopted as proposed, would require fees per trade that could adversely affect our profits given that we seek to make small profits on individual trades.

          Any or all of these proposals or additional proposals may be adopted by the SEC, CFTC or other U.S. or foreign legislative or regulatory bodies.bodies, and recent news media attention to electronic trading and market structure could increase the likelihood of adoption. These potential market structure and regulatory changes could cause a change in the manner in which we make markets, impose additional costs and expenses on our business or otherwise have a material adverse effect on our business, financial condition and results of operations.

          In addition, the financial services industry is heavily regulated in many foreign countries, is heavily regulated, much like in the U.S. The varying compliance requirements of these different regulatory jurisdictions and other factors may limit our ability to conduct business or expand internationally. For example, the Markets in Financial Instruments Directive ("MiFID"), which was implemented in November 2007, continues to be under reviewis in the process of being replaced by the European Parliament. In October 2012, the European Parliament adopted, with amendments, MiFID II/Markets in Financial Investments Regulation ("MiFIR"). MiFID II/MiFIR will not be finalized until the completion of trialogues among, which was adopted by the European Commission, European Parliament on April 15, 2014 and by the Council of the European Union, which began in the third quarter of 2013.on May 13, 2014, and entered into force on July 2, 2014. The MiFID II/MiFIR proposals include many changes likely to affect our business. For example, the current proposal would require firms like us to conduct all trading on European markets through authorized investment firms. MiFID II/MiFIR will also require certain types of firms, including us, to post firm quotes at competitive prices and will supplement current requirements with regard to investment firms' risk controls related to the safe operation of electronic systems. MiFID II/MiFIR may also impose additional requirements on our trading platforms, such as a

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minimum order resting time, cancellation fees, circuit breakerswill also impose additional requirements on market structure, such as the introduction of a harmonized tick size regime, the introduction of new trading Organized Trading Facilities, new open access provisions, market making requirements and limits on the ratio of unexecuted orders to trades.various other pre- and post-trade risk management requirements. Each of these proposals and othersother proposals may impose technological and compliance costs on us. Any of these laws, rules or regulations, if adopted, as well as any regulatory or legal actions or proceedings, changes in legislation or regulation and changes in market customs and practices could have a material adverse effect on our business, financial condition and results of operations. These risks may be enhanced by recent scrutiny of electronic trading and market structure from regulators, lawmakers and the financial news media.

          In addition, we maintain borrowing facilities with banks, prime brokers and Futures Commission Merchants ("FCMs"), and obtain uncommitted margin financing from our prime brokers and FCMs, which are in many cases affiliated with banks. In response to the financial crisis, the Basel Committee on Banking Supervision issued a new, more stringent capital and liquidity framework known as Basel III, which national banking regulators are in the process of implementing in the various jurisdictions in which our lenders may be incorporated. As these rules are implemented and impose more stringent capital and liquidity requirements, certain of our lenders may revise the terms of our borrowing facilities or margin financing arrangements, reduce the amount of financing they provide, or cease providing us financing, each of which could have a material adverse effect on our business, financial condition and results of operations.

Non-compliance with applicable laws or regulatory requirements could negatively impact our reputation, prospects, revenues and earnings.

          Our subsidiaries are subject to regulations in the U.S., and our foreign subsidiaries are subject to regulations abroad, in each case covering all aspects of their business. Regulatory bodies that exercise or may exercise authority over us include, without limitation, in the U.S., the SEC, FINRA, the Board of Governors of the Federal Reserve System (the "Federal Reserve"), the Chicago Stock Exchange, the Chicago Mercantile Exchange, the CFTC, the National Futures Association ("NFA") and the various state securities regulators; in Ireland, the Central Bank of Ireland; in Switzerland, the Swiss Financial Market Supervisory Authority; in France, the Autorité des Marchés Financiers ("AMF"); in the United Kingdom, the Financial Conduct Authority ("FCA"); in Hong Kong, the Securities and Futures Commission ("SFC"); in Australia, the Australian Securities and Investment Commission; in Canada, the Investment Industry Regulatory Organization of Canada and various Canadian provincial securities commissions; in Singapore, the Monetary Authority of Singapore and the Singapore Exchange; and in Japan, the Financial Services Agency and the Japan Securities Dealers Association. Our mode of operation and profitability may be directly affected by additional legislation and changes in rules promulgated by various domestic and foreign government agencies and SROs that oversee our businesses, in addition to changes in the interpretation or enforcement of existing laws and rules, including the potential imposition of additional capital and margin requirements and/or transaction taxes. While we endeavor to timely deliver required annual filings in all jurisdictions, we cannot guarantee that we will meet every applicable filing deadline globally. Certain of our subsidiaries have yet to complete statutorily required filings for the year ended December 31, 2012.2013. Noncompliance with applicable laws or regulations could result in sanctions being levied against us, including fines, penalties, disgorgement and censures, suspension or expulsion from a certain jurisdiction, SRO or market or the revocation or limitation of licenses. Noncompliance with applicable laws or regulations could also negatively impact our reputation, prospects, revenues and earnings. In addition, changes in current laws or regulations or in governmental policies could negatively impact our operations, revenues and earnings.

          Domestic and foreign stock exchanges, other SROs and state and foreign securities commissions can censure, fine and issue cease-and-desist orders to suspend or expel a broker-dealer or other market participant or any of its officers or employees. Our ability to comply with all

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applicable laws and rules is largely dependent on our internal systems to ensure compliance, as well as our ability to attract and retain qualified compliance personnel. We could be subject to disciplinary or other actions in the future due to claimed noncompliance, which could have a material adverse effect on our business, financial condition and results of operations. At any given time, weWe have been, are currently, and may in the future be, the subject of one or more regulatory or SRO enforcement actions, including but not limited to targeted and routine regulatory inquiries and investigations involving Regulation NMS, Regulation SHO, capital requirements and other domestic and foreign securities rules and regulations. We and other broker-dealers and trading firms have also been the subject of requests for information and documents from the SEC and the State of New York Office of the Attorney General ("NYAG"). We have been cooperating and complying with the SEC's and NYAG's requests for information and documents. Our business or reputation could be negatively impacted if it were determined that disciplinary or other enforcement actions were required. For example, the CFTC is looking intohas requested certain information from us relating to our trading during the period from July 2011 to November 2013 and specifically our participation in certain incentive programs offered by exchanges or venues during that time period.February 2014. We do not believe that our trading activity during this activitytime period violated any statute or CFTC regulatory provision, but we cannot predict the outcome of this inquiry. In addition, the AMF is examining the trading activities of a subsidiary of

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Madison Tyler Holdings in certain French listed equity securities in or around 2009. The AMF board, upon the report of its investigation division, has decided to refer the matter to the AMF enforcement committee who could decide to impose administrative sanctions or monetary penalties for market manipulation or breach of professional obligations applicable to us. While we maintain that the trading activity under review was conducted appropriately and in compliance with applicable law and regulation, a determination that disciplinary or other enforcement actions are required could negatively impact our reputation and business. To continue to operate and to expand our services internationally, we will have to comply with the regulatory controls of each country in which we conduct or intend to conduct business, the requirements of which may not be clearly defined. The varying compliance requirements of these different regulatory jurisdictions, which are often unclear, may limit our ability to continue existing international operations and further expand internationally.

Failure to comply with applicable regulatory capital requirements could subject us to sanctions imposed by the SEC, FINRA and other SROs or regulatory bodies.

          Certain of our subsidiaries are subject to regulatory capital rules of the SEC, FINRA, other SROs and foreign regulators. These rules, which specify minimum capital requirements for our regulated subsidiaries, are designed to measure the general financial integrity and liquidity of a broker-dealer and require that at least a minimum part of its assets be kept in relatively liquid form. In general, net capital is defined as net worth (assets minus liabilities), plus qualifying subordinated borrowings, less certain mandatory deductions that result from, among other things, excluding assets that are not readily convertible into cash and from valuing conservatively certain other assets. Among these deductions are adjustments, commonly called haircuts, which reflect the possibility of a decline in the market value of an asset before disposition, and non-allowable assets.

          Failure to maintain the required minimum capital may subject our regulated subsidiaries to a requirement to cease conducting business, suspension, revocation of registration or expulsion by the applicable regulatory authorities, and ultimately could require the relevant entity's liquidation. Events relating to capital adequacy could give rise to regulatory actions that could limit business expansion or require business reduction. SEC and SRO net capital rules prohibit payments of dividends, redemptions of stock, prepayments of subordinated indebtedness and the making of any unsecured advances or loans to a stockholder, employee or affiliate, in certain circumstances, including if such payment would reduce the firm's net capital below required levels. Similar issues and risks arise in connection with the capital adequacy requirements of foreign regulators.

          A change in the net capital rules, the imposition of new rules or any unusually large charges against net capital could limit our operations that require the intensive use of capital and also could

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restrict our ability to withdraw capital from our broker-dealer subsidiaries. A significant operating loss or any unusually large charge against net capital could negatively impact our ability to expand or even maintain our present levels of business. Similar issues and risks arise in connection with the capital adequacy requirements of foreign regulators. Any of these results could have a material adverse effect on our business, financial condition and results of operations.

We are subject to risks relating to litigation and potential securities law liability.

          We are exposed to substantial risks of liability under federal and state securities laws and other federal and state laws and court decisions, as well as rules and regulations promulgated by the SEC, the CFTC, the Federal Reserve, state securities regulators, SROs and foreign regulatory agencies. These risks may be enhanced by recent scrutiny electronic trading and market structure from regulators, lawmakers and the financial news media. We are also subject to the risk of litigation and claims that may be without merit. From time to time, we, our officers, directors and employees may be named in legal actions, regulatory investigations and proceedings, arbitrations and administrative claims and be subject to claims alleging the violations of laws, rules and regulations, some of which may ultimately result in the payment of fines, awards, judgments and settlements. We could incur significant legal expenses in

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defending ourselves against and resolving lawsuits or claims even if we believe them to be meritless. An adverse resolution of any future lawsuits or claims against us could result in a negative perception of our Company and cause the market price of our common stock to decline or otherwise have a material adverse effect on our business, financial condition, or results of operations.operations and cash flows.

Proposed legislation in the European Union, the U.S. and other jurisdictions that would impose taxes on certain financial transactions could have a material adverse effect on our business and financial results.

          The Council ofOn February 14, 2013, the European Commission tabled a proposal for a Council Directive to implement an enhanced cooperation procedure among 11 European Union adopted a decision in February 2013 authorizing 11 member statesMember States (Belgium, Germany, Estonia, Greece, Spain, France, Italy, Austria, Portugal, Slovenia and Slovakia) to proceed withfor the introductionpurposes of a financial transaction tax.tax among those Member States. Diplomats from the 11 EU member states had initially aimed to come to an agreement on the future European tax on financial transactions by the end of 2014; however, consensus on the final terms is not likely to be reached until the middle of 2015, with the proposal being implemented not earlier than 2016. The exact terms of the process by which such a financial transaction tax would be implemented are under consideration by the European Commission, but the envisioned tax would broadly apply to transactions in financial instruments, including equities, bonds,certain derivatives and foreign currency, to which apotentially some other financial institution (which would include banks, insurance companies, leasing companies, mutual funds and pension funds) is a party if one or more of the parties is established in a participating member state.instruments. In September 2013, the European Legal Service issued an opinion questioning the legal validity of the European Commission's proposal, creating uncertainty as to the status of the proposal's implementation. Similarly, in 2013, U.S. Representative Peter DeFazio and former Senator Thomas Harkin introduced H.R. 880 and S. 410 last year,proposed legislation, a bill entitled the "Wall Street Trading and Speculators Tax Act," which would have, subject to certain exceptions, imposeimposed an excise tax on the purchase of a security, including equities, bonds, debentures, other debt and interests in derivative financial instruments, if the purchase occursoccured or iswas cleared on a trading facility in the U.S. and the purchaser or seller is a U.S. person. More recently, U.S. Representative Chris Van Hollen presented an "action plan" that included a financial transaction fee. These proposed transaction taxes would apply to certain aspects of our business and transactions in which we are involved. Any such tax would increase our cost of doing business to the extent that (i) the tax is regularly applicable to transactions in the markets in which we operate, (ii) the tax does not include exceptions for market makers or market making activities that is broad enough to cover our activities or (iii) we are unable to widen our bid/ask spreads in the markets in which such a tax would be applicable to compensate for its imposition. Furthermore, the proposed taxes may reduce or negatively impact trading volume and transactions on which we are dependent for revenues.

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While it is difficult to assess the impact the proposed taxes could have on us, if either transaction tax is implemented or any similar tax is implemented in any other jurisdiction in which we operate, our business, financial condition, results of operations and financial resultscash flows could suffer a material adverse effect, and could be impacted to a greater degree than other market participants.

Failure to comply with laws and regulations applicable to our international operations may increase costs, reduce profits, limit growth or subject us to broader liability.

          Our business operations in countries outside the U.S. are subject to a number of laws and regulations, including restrictions imposed by the Foreign Corrupt Practices Act (the "FCPA") and trade sanctions administered by the Office of Foreign Assets Control (the "OFAC"). The FCPA is intended to prohibit bribery of foreign officials and requires companies whose securities are listed in the U.S. to keep books and records that accurately and fairly reflect those companies' transactions and to devise and maintain an adequate system of internal accounting controls. The OFAC administers and enforces economic and trade sanctions based on U.S. foreign policy and national security goals against designated foreign states, organizations and individuals. We have policies in place reasonably designed to comply with applicable OFAC sanctions, rules and regulations. In addition, some of our operations may be subject to laws and regulations of non-U.S. jurisdictions containing prohibitions on bribery and other corrupt business activities. If we fail to comply with

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these laws and regulations, we could be exposed to claims for damages, financial penalties, reputational harm, and incarceration of employees orand restrictions on our operations.operations and cash flows.

We depend on our technology, and our future results may be negatively impacted if we cannot remain technologically competitive.

          We believe that our success in the past has largely been attributable to our technology, which has taken many years to develop. If technology equivalent to ours becomes more widely available for any reason, our operating results may be negatively impacted. Additionally, adoption or development of similar or more advanced technologies by our competitors may require that we devote substantial resources to the development of more advanced technology to remain competitive. Regulators and exchanges may also introduce risk control and other technological requirements on our business that could result in increased costs of compliance and divert our technological resources away from their primary strategy development and maintenance duties. The markets in which we compete are characterized by rapidly changing technology, evolving industry standards and changing trading systems, practices and techniques. The widespread adoption of new internet, networking or telecommunications technologies or other technological changes could require us to incur substantial expenditures to modify or adapt our services or infrastructure. We may not be able to anticipate or respond adequately or in a cost-efficient and competitive manner to technological advancements (including advancements related to low-latency technologies, execution and messaging speeds) or changing industry standards. If any of these risks materialize, it could have a material adverse effect on our business, financial condition, and results of operation.operations and cash flows.

Our reliance on our computer systems and software could expose us to great financial harm if any of our computer systems or software were subject to any material disruption or corruption.

          We rely significantly on our computer systems and software to receive and properly process internal and external data and utilize such data to generate orders and other messages. A disruption or corruption of the proper functioning of our computer systems or software could cause us to make erroneous trades, which could result in material losses. We cannot guarantee that our efforts to maintain competitive computer systems and software will be successful. Our computer systems and software may fail or be subject to bugs or other errors, resulting in service interruptions or other unintended consequences. If any of these risks materialize, they could have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

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Our failure to protect our systems and network against cybersecurity breaches, or otherwise protect confidential and proprietary information, could damage our reputation and negatively impact our business.

          Our cybersecurity measures may not detect or prevent all attempts to compromise our systems, including denial-of-service attacks, viruses, malicious software, break-ins, phishing attacks, social engineering, security breaches or other attacks and similar disruptions that may jeopardize the security of information stored in and transmitted by our systems or that we otherwise maintain. Breaches of our cybersecurity measures could result in any of the following: unauthorized access to our systems; unauthorized access to and misappropriation of information or data, including confidential or proprietary information about ourselves, third parties with whom we do business or our proprietary systems; viruses, worms, spyware or other malware being placed in our systems; deletion or modification of client information; or a denial-of-service or other interruptions to our business operations. Because techniques used to obtain unauthorized access to or sabotage systems change frequently and may not be known until launched against us or our third-party service providers, we may be unable to anticipate these attacks or to implement adequate

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preventative measures. While we have not suffered any material breach of our cybersecurity, any actual or perceived breach of our cybersecurity could damage our reputation, expose us to a risk of loss or litigation and possible liability, require us to expend significant capital and other resources to alleviate problems caused by such breaches and otherwise have a material adverse effect on our business, financial condition, results of operations and cash flows.

Capacity constraints, systems failures, malfunctions and delays could harm our business.

          Our business activities are heavily dependent on the integrity and performance of the computer and communications systems supporting them. Our systems and operations are vulnerable to damage or interruption from human error, software bugs and errors, electronic and physical security breaches, natural disasters, power loss, utility or internet outages, computer viruses, intentional acts of vandalism, terrorism and other similar events. Extraordinary trading volumes or other events could cause our computer systems to operate in ways that we did not intend, at an unacceptably low speed or even fail. While we have invested significant amounts of capital to upgrade the capacity, reliability and scalability of our systems, there can be no assurance that our systems will always operate properly or be sufficient to handle such extraordinary trading volumes. Any disruption for any reason in the proper functioning or any corruption of our software or erroneous or corrupted data may cause us to make erroneous trades or suspend our services and could have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

          Although our systems and infrastructure are generally designed to accommodate additional growth without redesign or replacement; we may need to make significant investments in additional hardware and software to accommodate growth. Failure to make necessary expansions and upgrades to our systems and infrastructure could not only limit our growth and business prospects but could also cause substantial losses and have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

          Since the timing and impact of disasters and disruptions are unpredictable, we may not be able to respond to actual events as they occur. Business disruptions can vary in their scope and significance and can affect one or more of our facilities. Further, the severity of the disruption can also vary from minimal to severe. Although we have employed significant effort to develop, implement and maintain reasonable disaster recovery and business continuity plans, we cannot guarantee that our systems will fully recover after a significant business disruption in a timely fashion or at all. If we are prevented from using any of our current trading operations, or if our business continuity operations do not work effectively, we may not have complete business

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continuity, which could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Failure or poor performance of third-party software, infrastructure or systems on which we rely could adversely affect our business.

          We depend on third parties to provide and maintain certain infrastructure that is critical to our business. For example, we rely on third parties to provide software, data center services and dedicated fiber optic, microwave, wireline and wireless communication infrastructure. This infrastructure may malfunction or fail due to events outside of our control, which could disrupt our operations and have a material adverse effect on our business, financial condition and results of operations. Any failure to maintain and renew our relationships with these third parties on commercially favorable terms, or to enter into similar relationships in the future, could have a material adverse effect on our business, financial condition, and results of operations.

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          We also rely on certain third-party software, third-party computer systems and third-party service providers, including clearing systems, exchange systems, alternate trading systems, order routing systems, internet service providers, communications facilities and other facilities. Any interruption in these third-party services or software, deterioration in their performance, or other improper operation could interfere with our trading activities, cause losses due to erroneous or delayed responses, or otherwise be disruptive to our business. If our arrangements with any third party are terminated, we may not be able to find an alternative source of software or systems support on a timely basis or on commercially reasonable terms. This could also have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

The use of open source software may expose us to additional risks.

          We use software development tools covered by open source licenses and may incorporate such open source software into our proprietary software from time to time. "Open source software" refers to any code, shareware or other software that is made generally available to the public without requiring payment of fees or royalties and/or that may require disclosure or licensing of any software that incorporates such source code, shareware or other software. Given the nature of open source software, third parties might assert contractual or copyright and other intellectual property-related claims against us based on our use of such tools and software programs or might seek to compel the disclosure of the source code of our software or other proprietary information. If any such claims materialize, we could be required to (i) seek licenses from third parties in order to continue to use such tools and software or to continue to operate certain elements of our technology, (ii) release certain proprietary software code comprising our modifications to such open source software, (iii) make our software available under the terms of an open source license or (iv) re-engineer all, or a portion of, that software, any of which could materially and adversely affect our business, financial condition and results of operations. While we monitor the use of all open source software in our solutions, processes and technology and try to ensure that no open source software is used (i) in such a way as to require us to disclose the source code to the related solution when we do not wish to do so nor (ii) in connection with critical or fundamental elements of our software or technology, such use may have inadvertently occurred in deploying our proprietary solutions. If a third-party software provider has incorporated certain types of open source software into software we license from such third party for our products and solutions, we could, under certain circumstances, be required to disclose the source code to our solutions. In addition to risks related to license requirements, usage of open software can lead to greater risks than use of third-party commercial software because open source licensors generally do not provide warranties or controls on the origin of the software. Many of the risks associated with usage

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of open source software cannot be eliminated and could potentially have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

We may not be able to protect our intellectual property rights or may be prevented from using intellectual property necessary for our business.

          We rely primarily on trade secret, trademark, domain name, copyright and contract law to protect our intellectual property and proprietary technology. It is possible that third parties may copy or otherwise obtain and use our intellectual property or proprietary technology without authorization or otherwise infringe on our rights. For example, while we have a policy of entering into confidentiality, intellectual property invention assignment and/or non-competition and non-solicitation agreements or restrictions with our employees, independent contractors and business partners, such agreements may not provide adequate protection or may be breached, or our proprietary technology may otherwise become available to or be independently developed by our competitors. Third parties have alleged and may in the future allege that we are infringing, misappropriating or otherwise violating their intellectual property rights. Third parties may initiate

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litigation against us without warning, or may send us letters or other communications that make allegations without initiating litigation. We may elect not to respond to these letters or other communications if we believe they are without merit, or we may attempt to resolve these disputes out of court by negotiating a license, but in either case it is possible that such disputes will ultimately result in litigation. Any such claims could interfere with our ability to use technology or intellectual property that is material to the operation of our business. Such claims may be made by competitors seeking to obtain a competitive advantage or by other parties, such as entities that purchase intellectual property assets for the purpose of bringing infringement claims. We also periodically employ individuals who were previously employed by our competitors or potential competitors, and we may therefore be subject to claims that such employees have used or disclosed the alleged trade secrets or other proprietary information of their former employers.

          In the future, we may have to rely on litigation to enforce our intellectual property rights, protect our trade secrets, determine the validity and scope of the proprietary rights of others or defend against claims of infringement or invalidity. Any such litigation, whether successful or unsuccessful, could result in substantial costs and the diversion of resources and the attention of management. If unsuccessful, such litigation could result in the loss of important intellectual property rights, require us to pay substantial damages, subject us to injunctions that prevent us from using certain intellectual property, require us to make admissions that affect our reputation in the marketplace and require us to enter into license agreements that may not be available on favorable terms or at all. Finally, even if we prevail in any litigation, the remedy may not be commercially meaningful or fully compensate us for the harm we suffer or the costs we incur. Any of the foregoing could have a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

We are exposed to risks associated with our international operations and expansion.

          We are exposed to risks and uncertainties inherent in doing business in international markets, particularly in the heavily regulated broker-dealer industry. Such risks and uncertainties include political, economic and financial instability, unexpected changes in regulatory requirements, tariffs and other trade barriers, exchange rate fluctuations, applicable currency controls, the imposition of restrictions on currency conversion or the transfer of funds, limitations on our ability to repatriate non-U.S. earnings in a tax efficient manner and difficulties in staffing and managing foreign operations, including reliance on local experts.

          In addition, the varying compliance requirements of these different regulatory jurisdictions and other factors may limit our ability to successfully conduct or expand our business internationally

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and may increase our costs of investment. Expansion into international locations involves substantial operational and execution risk. We may not be able to manage these costs or risks effectively.

Fluctuations in currency exchange rates could negatively impact our earnings.

          A significant portion of our international business is conducted in currencies other than the U.S. dollar, and changes in foreign exchange rates relative to the U.S. dollar can therefore affect the value of our non-U.S. dollar net assets, revenues and expenses. Although we closely monitor potential exposures as a result of these fluctuations in currencies, and where cost-justified we adopt strategies that are designed to reduce the impact of these fluctuations on our financial performance, including the financing of non-U.S. dollar assets with borrowings in the same currency and the use of various hedging transactions related to net assets, revenues, expenses or cash flows, there can be no assurance that we will be successful in managing our foreign exchange risk. Our exposure to currency exchange rate fluctuations will grow if the relative contribution of our operations outside

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the U.S. increases. Any material fluctuations in currencies could have a material effect on our financial condition, and results of operations.operations and cash flows.

We may experience risks associated with future growth or expansion of our operations or acquisitions or dispositions of businesses, and we may never realize the anticipated benefits of such activities.

          As a part of our business strategy, we may make acquisitions or significant investments in and/or disposals of businesses. Any such future acquisitions, investments and/or dispositions would be accompanied by risks such as difficulties in assimilating the operations and personnel of acquired companies or businesses, diversion of our management's attention from ongoing business concerns, our potential inability to maximize our financial and strategic position through the successful incorporation or disposition of operations, maintenance of uniform standards, controls, procedures and policies and the impairment of existing relationships with employees, contractors, suppliers and customers as a result of the integration of new management personnel and cost-saving initiatives.

          We cannot guarantee that we will be able to successfully integrate any company or business that we might acquire in the future, and our failure to do so could harm our current business.

          In addition, we may not realize the anticipated benefits of any such transactions, and there may be other unanticipated or unidentified effects. While we would seek protection, for example, through warranties and indemnities in the case of acquisitions, significant liabilities may not be identified in due diligence or come to light after the expiration of warranty or indemnity periods. Additionally, while we would seek to limit our ongoing exposure, for example, through liability caps and period limits on warranties and indemnities in the case of disposals, some warranties and indemnities may give rise to unexpected and significant liabilities. If we fail to realize any such anticipated benefits, or if we experience any such unanticipated or unidentified effects in connection with any future acquisitions, investments or dispositions, we could suffer a material adverse effect on our business, financial condition, and results of operations.operations and cash flows.

Our future efforts to sell shares of our common stock or raise additional capital may be delayed or prohibited by regulations.

          As certain of our subsidiaries are members of FINRA and other SROs, we are subject to certain regulations regarding changes in ownership or control and material changes in operations. For example, FINRA's NASD Rule 1017 generally provides that FINRA approval must be obtained in connection with certain change of ownership or control transactions, such as a transaction that

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results in a single entity or person owning 25% or more our equity. Similarly, Virtu Financial Ireland Limited, one of our Irish subsidiaries, is subject to change in control regulations promulgated by the Central Bank of Ireland. As a result of these regulations, our future efforts to sell shares of our common stock or raise additional capital may be delayed or prohibited. We may be subject to similar restrictions in other jurisdictions in which we operate.

We are dependent on the continued service of certain key executives, the loss or diminished performance of whom could have a material adverse effect on our business.

          Our performance is substantially dependent on the performance of our senior management, including Mr. Viola, our Founder and Executive Chairman, Mr. Cifu, our Chief Executive Officer and Mr. Concannon,Molluso, our President and Chief OperatingFinancial Officer. In connection with this offering, we intend to enter into employment and/or severance protection agreements with certain members of our senior management team that will restrict their ability to compete with us should they decide to leave our Company. Even if we have entered into these agreements, we cannot be sure that any

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member of our senior management will remain with us or that they will not compete with us in the future. The loss of any member of our senior management team could impair our ability to execute our business plan and growth strategy and have a negative impact on our revenues, in addition to potentially causing employee morale problems and/or the loss of key employees. In particular, Messrs. Viola and Cifu invest in other businesses and spend time on such matters, which could divert their attention from us. We contemplate that our employment agreement with Mr. Cifu will specifically permit his participation in and attention to certain other business activities, including but not necessarily limited to his role as the Vice Chairman and Alternate Governor of the Florida Panthers, a National Hockey League franchise, and his role as a director of the Independent Bank Group, Inc., a regional bank holding company. We cannot guarantee that these or other permitted outside activities will not impact his performance as Chief Executive Officer.

Our success depends, in part, on our ability to identify, recruit and retain skilled management and technical personnel. If we fail to recruit and retain suitable candidates or if our relationship with our employees changes or deteriorates, it could have a material adverse effect on our business.

          Our future success depends, in part, upon our continued ability to identify, attract, hire and retain highly qualified personnel, including skilled technical, management, product and technology, trading, sales and marketing personnel, all of whom are in high demand and are often subject to competing offers. Competition for qualified personnel in the financial services industry is intense and we cannot assure you that we will be able to hire or retain a sufficient number of qualified personnel to meet our requirements, or that we will be able to do so at salary, benefit and other compensation costs that are acceptable to us or that would allow us to achieve operating results consistent with our historical results. A loss of qualified employees, or an inability to attract, retain and motivate additional highly skilled employees in the future, could have a material adverse effect on our business.

We could lose significant sources of revenues if we were to lose access to an important exchange or other trading venue.

          Changes in applicable laws, regulations or rules promulgated by exchanges could conceivably prevent us from providing liquidity to an exchange or other trading venue where we provide liquidity today. Though our revenues are diversified across exchanges and other trading venues, asset classes and geographies, the loss of access to one or more significant exchanges and other trading venues for any reason could have a material adverse effect on our business, financial condition and results of operations.

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Risks Related to Our Organization and Structure

We are a holding company and our principal asset after completion of this offering will be our 23.4% equity interestsinterest in Virtu Financial, and we are accordingly dependent upon distributions from Virtu Financial to pay dividends, if any, taxes and other expenses.

          We are a holding company and, upon completion of the reorganization transactions and this offering, our principal asset will be our direct and indirect ownership of 23.4% of the outstanding Virtu Financial Units. See "Organizational Structure." We have no independent means of generating revenue. As the sole managing member of Virtu Financial, we intend to cause Virtu Financial to make distributions to its equityholders, including the Founder Post-IPO Member, the Silver Lake Post-IPO Members, the Management Vehicles,Virtu Employee Holdco, the Management Members and us, in amounts sufficient to fund dividends to our stockholders in accordance with our dividend policy and, as further described below, to cover all applicable taxes payable by us and any payments we are obligated to make under the tax receivable agreements we intend to enter into as part of the reorganization transactions, but we are limited in our ability to cause Virtu Financial to make these and other distributions to us (including

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for purposes of paying corporate and other overhead expenses and dividends) under our credit agreement. In addition, certain laws and regulations may result in restrictions on Virtu Financial's ability to make distributions to its equityholders (including us), or the ability of its subsidiaries to make distributions to it. These include:

•

the SEC Net Capital Rule (Rule 15c3-1) requires each of Virtu Financial's registered broker-dealer subsidiaries to maintain specified levels of net capital;



•

FINRA Rule 4110 imposes a requirement of prior FINRA approval for any distribution by Virtu Financial's FINRA member registered broker-dealer subsidiary in excess of 10% of its excess net capital; and



•

Virtu Financial's regulated Irish subsidiary must obtain prior approval from the Central Bank of Ireland for any distribution or dividend.

          To the extent that we need funds and Virtu Financial is restricted from making such distributions to us, under applicable law or regulation, as a result of covenants in our credit agreement or otherwise, we may not be able to obtain such funds on terms acceptable to us or at all and as a result could suffer a material adverse effect on our liquidity and financial condition.

          Following the consummation of this offering, before any other distributions are made to us and the Virtu Post-IPO Members by Virtu Financial, Virtu Financial will distribute to certain Virtu Pre-IPO Members as of immediatelya record date prior to the commencement of the reorganization transactions, pro rata in accordance with their respective interests in classes of equity entitled to participate in operating cash flow distributions, operating cash flow of Virtu Financial and its subsidiaries for the fiscal period beginning on January 1, 2015 and ending on the date of the consummation of the reorganization transactions, less any reserves established during this period and less any operating cash flow for this period previously distributed to such Virtu Pre-IPO Members. We expect this distribution to be for an aggregate amount of approximately $             and towill be funded from cash on hand. See "Dividend Policy."

          Under the SecondThird Amended and Restated Limited Liability Company Agreement of Virtu Financial (the "Amended and Restated Virtu Financial LLC Agreement"), we expect Virtu Financial from time to time to make pro rata distributions in cash to its equityholders, including the Founder Post-IPO Member, the Silver Lake Post-IPO Members, the Management Vehicles, the Management MembersVirtu Employee Holdco and us, in amounts sufficient to cover the taxes on their allocable share of the taxable income of Virtu Financial. As a result of (i) potential differences in the amount of net taxable income allocable to us and to Virtu Financial's other equityholders, (ii) the lower tax rate applicable to corporations than individuals and (iii) the favorable tax benefits that we anticipate from (a) the exchange of Virtu Financial Units and corresponding shares of Class C common stock or Class D

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common stock, (b) payments under the tax receivable agreements and (c) future deductions attributable to the prior acquisition of interests in Virtu Financial by an affiliate of Silver Lake Partners and Temasek, and the Temasek Pre-IPO Member, we expect that these tax distributions will be in amounts that exceed our tax liabilities. Our board of directors will determine the appropriate uses for any excess cash so accumulated, which may include, among other uses, the payment of obligations under the tax receivable agreements and the payment of other expenses. We will have no obligation to distribute such cash (or other available cash) to our shareholders. No adjustments to the exchange ratio for Virtu Financial Units and corresponding shares of common stock will be made as a result of any cash distribution by us or any retention of cash by us, and in any event the ratio will remain one-to-one.

We are controlled by the Founder Post-IPO Member, whose interests in our business may be different than yours, and certain statutory provisions afforded to stockholders are not applicable to us.

          Based on an assumed initial public offering price of $$18.00 per share (the midpoint of the estimated public offering price range set forth on the cover page of this prospectus), the Founder

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Post-IPO Member will control approximately %93.4% of the combined voting power of our common stock (or %93.2% if the underwriters exercise their option to purchase additional shares in full) after the completion of this offering and the application of the net proceeds from this offering as a result of its ownership of our Class D common stock, each share of which is entitled to 10 votes on all matters submitted to a vote of our stockholders.

          The Founder Post-IPO Member will have the ability to substantially control our Company, including the ability to control any action requiring the general approval of our stockholders, including the election of our board of directors, the adoption of amendments to our certificate of incorporation and by-laws and the approval of any merger or sale of substantially all of our assets. This concentration of ownership and voting power may also delay, defer or even prevent an acquisition by a third party or other change of control of our Company and may make some transactions more difficult or impossible without the support of the Founder Post-IPO Member, even if such events are in the best interests of minority stockholders. This concentration of voting power with the Founder Post-IPO Member may have a negative impact on the price of our Class A common stock. In addition, because shares of our Class B common stock and Class D common stock each have 10 votes per share on matters submitted to a vote of our stockholders, the Founder Post-IPO Member will be able to control our Company as long as it owns at least 25% of our issued and outstanding common stock.

          The Founder Post-IPO Member's interests may not be fully aligned with yours, which could lead to actions that are not in your best interest. Because the Founder Post-IPO Member holds part of its economic interest in our business through Virtu Financial, rather than through the public company, it may have conflicting interests with holders of shares of our Class A common stock. For example, the Founder Post-IPO Member may have a different tax positionsposition from us, which could influence its decisions regarding whether and when we should dispose of assets or incur new or refinance existing indebtedness, especially in light of the existence of the tax receivable agreements that we will enter into in connection with this offering, and whether and when we should undergo certain changes of control within the meaning of the tax receivable agreements or terminate the tax receivable agreements. In addition, the structuring of future transactions may take into consideration these tax or other considerations even where no similar benefit would accrue to us. See "Certain Relationships and Related Party Transactions — Tax Receivable Agreements." In addition, pursuant to the Exchange Agreement described under "Certain Relationships and Related Party Transactions — Exchange Agreement," the holders of Virtu Financial Units and shares of our Class C common stock or Class D common stock will not be required to participate in a proposed

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sale of our Company that is tax-free for our stockholders unless the transaction is also tax-free for such holders of Virtu Financial Units and shares of our Class C common stock or Class D common stock. This requirement could limit structural alternatives available to us in any such proposed transaction and could have the effect of discouraging transactions that might benefit you as a holder of shares of our Class A common stock. See "Certain Relationships and Related Party Transactions — Exchange Agreement." In addition, the Founder Post-IPO Member's significant ownership in us and resulting ability to effectively control us may discourage someone from making a significant equity investment in us, or could discourage transactions involving a change in control, including transactions in which you as a holder of shares of our Class A common stock might otherwise receive a premium for your shares over the then-current market price.

          We have opted out of Section 203 of the General Corporation Law of the State of Delaware (the "Delaware General Corporation Law"), which prohibits a publicly held Delaware corporation from engaging in a business combination transaction with an interested stockholder for a period of three years after the interested stockholder became such unless the transaction fits within an applicable exemption, such as board approval of the business combination or the transaction which resulted in such stockholder becoming an interested stockholder. Therefore, after the 180 day180-day lock-up period expires, the Founder Post-IPO Member will be able to transfer control of us to a third party by transferring its shares of our common stock (subject to certain restrictions and limitations), which would not require the approval of our board of directors or our other stockholders.

          Our amended and restated certificate of incorporation will provide that, to the fullest extent permitted by law, the doctrine of "corporate opportunity" will not apply against the Founder Post-IPO Member, Mr. Viola, the Silver Lake Equityholders, the Temasek Post-IPO Stockholder, any of our non-employee directors or any of their respective affiliates in a manner that would prohibit them from investing in competing businesses or doing business with our clients or customers. In addition, subject to the restrictions on competitive activities described below, Mr. Cifu will be permitted to become engaged in, or

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provide services to, any other business or activity in which Mr. Viola is currently engaged or permitted to become engaged, to the extent that Mr. Cifu's level of participation in such businesses or activities is consistent with his current participation in such businesses and activities. The Amended and Restated Virtu Financial LLC Agreement will provide that Mr. Viola, in addition to our other executive officers and our employees that are Virtu Post-IPO Members, including Messrs.Mr. Cifu, and Concannon, may not directly or indirectly engage in certain competitive activities until the third anniversary of the date on which such person ceases to be employed by us.an officer, director or employee of ours. The Silver Lake Equityholders, the Temasek Post-IPO Stockholder and our non-employee directors are not subject to any such restriction. See "Certain Relationships and Related Party Transactions — Amended and Restated Virtu Financial Limited Liability Company Agreement." To the extent that the Founder Post-IPO Member, Mr. Viola, the Silver Lake Equityholders, the Temasek Post-IPO Stockholder, our non-employee directors or any of their respective affiliates invests in other businesses, they may have differing interests than our other stockholders. Messrs. Viola and Cifu have business relationships outside of our business. See "Certain Relationships and Related Party Transactions — Other Transactions."

          For additional information regarding the share ownership of, and our relationship with, the Founder Post-IPO Member, and the Silver Lake Equityholders and the Temasek Post-IPO Stockholder, you should read the information under the headings "Principal Stockholders" and "Certain Relationships and Related Party Transactions."

We have a substantial amount of indebtedness, which could negatively impact our business and financial condition.

          As of February 28,December 31, 2014, we had an aggregate of $510$502.7 million outstanding indebtedness under our senior secured credit facility. If we cannot generate sufficient cash flow from operations to service our debt, we may need to refinance our debt, dispose of assets or issue equity to obtain

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necessary funds. We do not know whether we will be able to take any of such actions on a timely basis, on terms satisfactory to us or at all.

          Our substantial amount of indebtedness could limit our ability to obtain necessary additional financing for working capital, capital expenditures or other purposes in the future, plan for or react to changes in our business and the industries in which we operate, make future acquisitions or pursue other business opportunities and react in an extended economic downturn.

          Despite our substantial indebtedness, we may still be able to incur significantly more debt. The incurrence of additional debt could increase the risks associated with our substantial leverage, including our ability to service our indebtedness. In addition, because borrowings under our senior secured credit facility bear interest at a variable rate, our interest expense could increase, exacerbating these risks. For instance, assuming an aggregate principal balance of $510$502.7 million outstanding under our senior secured credit facility, which was the amount outstanding as of February 28,December 31, 2014, a 1% increase in the interest rate we are charged on our debt would increase our annual interest expense by $5.1$5.03 million.

          In addition, the covenants in our credit agreement may negatively impact our ability to finance future operations or capital needs or to engage in other business activities. Our credit agreement requires us to maintain specified financial ratios and tests, including interest coverage and total leverage ratios, which may require us to take action to reduce our debt or to act in a manner contrary to our business objectives. Our credit agreement also restricts our ability to, among other things, incur additional indebtedness, dispose of assets, guarantee debt obligations, repay other indebtedness, pay dividends, pledge assets, make investments, including in certain of our operating subsidiaries, make acquisitions or consummate mergers or consolidations and engage in certain transactions with subsidiaries and affiliates.

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          A failure to comply with the restrictions contained in our credit agreement could lead to an event of default, which could result in an acceleration of our indebtedness. Our future operating results may not be sufficient to enable compliance with the covenants in our credit agreement or to remedy such a default. In addition, in the event of an acceleration, we may not have or be able to obtain sufficient funds to refinance our indebtedness or to make any accelerated payments. Even if we were able to obtain new financing, we would not be able to guarantee that the new financing would be on commercially reasonable terms. If we default on our indebtedness, our business, financial condition and results of operation could suffer a material adverse effect.

We will be exempt from certain corporate governance requirements since we will be a "controlled company" within the meaning of the NASDAQ rules, and as a result our stockholders will not have the protections afforded by these corporate governance requirements.

          The Founder Post-IPO Member will continue to control more than 50% of our combined voting power upon the completion of this offering. As a result, we will be considered a "controlled company" for the purposes of NASDAQ rules and corporate governance standards, and therefore we will be permitted to, and we intend to, elect not to comply with certain NASDAQ corporate governance requirements, including those that would otherwise require our board of directors to have a majority of independent directors and require that we either establish a Compensation and Nominating and Corporate Governance Committees, each comprised entirely of independent directors, or otherwise ensure that the compensation of our executive officers and nominees for directors are determined or recommended to the board of directors by the independent members of the board of directors. Accordingly, holders of our Class A common stock will not have the same protections afforded to stockholders of companies that are subject to all of the NASDAQ rules and corporate governance standards, and the ability of our independent directors to influence our business policies and affairs may be reduced. See "Management — Controlled Company."

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We will be required to pay the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders for certain tax benefits we may claim, and the amounts we may pay could be significant.

          In connection with the reorganization transactions, we will acquire equity interests in Virtu Financial from thean affiliate of Silver Lake Post-IPO Stockholder.Partners and Temasek, and the Temasek Pre-IPO Member in the Mergers. In addition, as described under "Use of Proceeds," we intend to use a portion of the net proceeds from this offering to repurchase (i) Class A common stock from the Silver Lake Post-IPO Stockholder and (ii)purchase Virtu Financial Units and corresponding shares of Class C common stock from certain Virtu Post-IPO Members, including the Silver Lake Post-IPO Members, and certain members of management.employees. These acquisitions of interests in Virtu Financial will result in favorable tax basis adjustments to the assets of Virtu Financial and these basis adjustmentsthat will be allocated to us and our subsidiaries. In addition, future exchanges by the Virtu Post-IPO Members of Virtu Financial Units and corresponding shares of Class C common stock or Class D common stock, as the case may be, for shares of our Class A common stock or Class B common stock, respectively, are expected to produce favorable tax attributes. These tax attributes would not be available to us in the absence of those transactions. In addition, in connection with the reorganization transactions, we expect to succeed to future depreciation and amortization deductions attributable to the prior acquisition of interests in Virtu Financial by an affiliate of Silver Lake Partners. Both the existing and anticipated tax basis adjustments are expected to reduce the amount of tax that we would otherwise be required to pay in the future.

          We intend to enter into three tax receivable agreements with the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders (one with the Founder Post-IPO Member, the Management Vehicles, the Management MembersVirtu Employee Holdco and other post-IPO investors, other than affiliates of Silver Lake Partners and affiliates of Temasek, another with the Silver LakeInvestor Post-IPO StockholderStockholders and the other with the Silver Lake

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Post-IPO Members) that will provide for the payment by us to the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders (or their transferees of Virtu Financial Units or other assignees) of 85% of the amount of cash savings, if any, in U.S. federal, state and local income tax or franchise tax that we actually realize as a result of (i) any increase in tax basis in Virtu Financial's assets resulting from (a) the acquisition of equity interests in Virtu Financial from an affiliate of Silver Lake Partners and Temasek, and the Temasek Pre-IPO Member in the reorganization transactions (which represents the unamortized portion of the increase in tax basis in Virtu Financial's assets resulting from a prior acquisition of interests in Virtu Financial by an affiliate of Silver Lake Partners and Temasek, and the Temasek Pre-IPO Member), (b) the purchases of Virtu Financial Units (along with the corresponding shares of our Class C common stock or Class D common stock, as applicable) from certain of the Virtu Post-IPO Members using a portion of the net proceeds from this offering or in any future offering, (c) exchanges by the Virtu Post-IPO Members of Virtu Financial Units (along with the corresponding shares of our Class C common stock or Class D common stock, as applicable) for shares of our Class A common stock or Class B common stock, as applicable, or (d) payments under the tax receivable agreements, (ii) future depreciation and amortization deductions attributableany net operating losses available to us as a result of the prior acquisition of interests in Virtu Financial by an affiliate of Silver lake PartnersMergers and (iii) tax benefits related to imputed interest deemed arising as a result of payments made under the tax receivable agreements.

          The actual increase in tax basis, as well as the amount and timing of any payments under these tax receivable agreements, will vary depending upon a number of factors, including the timing of exchanges by the Virtu Post-IPO Members, the price of our Class A common stock at the time of the exchange, the extent to which such exchanges are taxable, the amount and timing of the taxable income we generate in the future and the tax rate then applicable and the portion of our payments under the tax receivable agreements constituting imputed interest.

          The payments we will be required to make under the tax receivable agreements could be substantial. We expect that, as a result of the amount of the increases in the tax basis of the tangible and intangible assets of Virtu Financial, assuming no material changes in the relevant tax law and that we earn sufficient taxable income to realize in full the potential tax benefits described above, future payments to the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders in respect of the purchases, the exchanges and the Mergers in connection with this offering will aggregate approximately $$175.7 million and range from approximately $$7.4 million to $             $12.9 million

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per year over the next 15 years (or $$179.9 million and range from approximately $$7.7 million to $$13.2 million per year over the next 15 years if the underwriters exercise in full their option to purchase additional Class A common stock). Future payments under the tax receivable agreements in respect of subsequent exchanges would be in addition to these amounts and are expected to be substantial. The payments under the tax receivable agreements are not conditioned upon the Virtu Post-IPO Members' or the Silver LakeInvestor Post-IPO Stockholder'sStockholders' continued ownership of us.

          In addition, although we are not aware of any issue that would cause the Internal Revenue Service (the "IRS") to challenge the tax basis increases or other benefits arising under the tax receivable agreements, the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders (or their transferees or other assignees) will not reimburse us for any payments previously made if such tax basis increases or other tax benefits are subsequently disallowed, except that any excess payments made to the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders will be netted against future payments otherwise to be made under the tax receivable agreements, if any, after our determination of such excess. As a result, in such circumstances we could make payments to the Virtu Post-IPO Members and the Silver LakeInvestor Post-IPO StockholderStockholders under the tax receivable agreements that are greater than our actual cash tax savings and may not be able to recoup those payments, which could negatively impact our liquidity.

          In addition, the tax receivable agreements provide that, upon certain mergers, asset sales or other forms of business combination, or certain other changes of control, our or our successor's obligations with respect to tax benefits would be based on certain assumptions, including that we or our successor would have sufficient taxable income to fully utilize the increased tax deductions

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and tax basis and other benefits covered by the tax receivable agreements. As a result, upon a change of control, we could be required to make payments under a tax receivable agreement that are greater than the specified percentage of our actual cash tax savings, which could negatively impact our liquidity.

          In addition, the tax receivable agreements will provide that in the case of a change in control of the Company, the Virtu Post-IPO Members and the Investor Post-IPO Stockholders will have the option to terminate the applicable tax receivable agreement, and we will be required to make a payment to such electing party in an amount equal to the present value of future payments (calculated using a discount rate equal to the lesser of 6.5% or LIBOR plus 100 basis points, which may differ from our, or a potential acquirer's, then-current cost of capital) under the tax receivable agreement, which payment would be based on certain assumptions, including those relating to our future taxable income. In these situations, our obligations under the tax receivable agreements could have a substantial negative impact on our, or a potential acquirer's, liquidity and could have the effect of delaying, deferring, modifying or preventing certain mergers, asset sales, other forms of business combinations or other changes of control. These provisions of the tax receivable agreements may result in situations where the Virtu Post-IPO Members and the Investor Post-IPO Stockholders have interests that differ from or are in addition to those of our other shareholders. In addition, we could be required to make payments under the tax receivable agreements that are substantial and in excess of our, or a potential acquirer's, actual cash savings in income tax.

          Finally, because we are a holding company with no operations of our own, our ability to make payments under the tax receivable agreements are dependent on the ability of our subsidiaries to make distributions to us. Our credit agreement restricts the ability of our subsidiaries to make distributions to us, which could affect our ability to make payments under the tax receivable agreements. To the extent that we are unable to make payments under the tax receivable agreements for any reason, such payments will be deferred and will accrue interest until paid, which could negatively impact our results of operations and could also affect our liquidity in periods in which such payments are made.

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Risks Related to this Offering and Our Class A Common Stock

Substantial future sales of shares of our Class A common stock in the public market could cause our stock price to fall.

          Upon the consummation of this offering, we will have 31,899,012 shares of Class A common stock (or 34,378,852 shares if the underwriters exercise their option to purchase additional shares in full) outstanding, excluding 9,223,000 shares of Class A common stock underlying outstanding stock options and restricted stock units and, based on an assumed initial public offering price of $$18.00 per share (the midpoint of the estimated public offering price range set forth on the cover page of this prospectus), and 104,610,072 shares of Class A common stock issuable upon potential exchanges and/or conversions. Of these shares, the 16,532,272 shares sold in this offering (or 19,012,112 shares if the underwriters exercise their option to purchase additional shares in full) will be freely tradable without further restriction under the Securities Act. Upon the completion of this offering, the remaining 119,976,812 outstanding shares of Class A common stock, including shares issuable upon exchange and/or conversion (or 119,421,256 shares if the underwriters exercise their option to purchase additional shares in full), will be deemed "restricted securities," as that term is defined under Rule 144 of the Securities Act. Immediately following the consummation of this offering, the holders of these remaining 119,976,812 shares of our Class A common stock, including shares issuable upon exchange or conversion as described above (or 119,421,256 shares if the underwriters exercise their option to purchase additional shares in full) will be entitled to dispose of their shares following the expiration of an initial 180-day underwriter "lock-up" period pursuant to (i) the applicable holding period, volume and other restrictions of Rule 144 or (ii) another exemption from registration under the Securities Act. See "Shares Available for Future Sale."

          We intend to file a registration statement under the Securities Act registering 12,000,000 shares of our Class A common stock and                          shares of our Class B common stock reserved for issuance under our 20142015 Management Incentive Plan, and we will enter into the Registration Rights Agreement pursuant to which we will grant demand and piggyback registration rights to the Founder Post-IPO Member, and the Silver Lake Equityholders and the Temasek Post-IPO Stockholder and piggyback registration rights to certain of the other Virtu Post-IPO Members. See "Shares Available for Future Sale" for a more detailed description of the shares that will be available for future sale upon completion of this offering.

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Failure to establish and maintain effective internal control over financial reporting could have a material adverse effect on our business, financial condition, results of operations and stock price.

          Maintaining effective internal control over financial reporting is necessary for us to produce reliable financial reports and is important in helping to prevent financial fraud. If we are unable to maintain adequate internal controls, our business and operating results could be harmed. We have begun to evaluate how to document and test our internal control procedures to satisfy the requirements of Section 404 of the Sarbanes-Oxley Act of 2002 ("Sarbanes-Oxley") and the related rules of the SEC, which require, among other things, our management to assess annually the effectiveness of our internal control over financial reporting and, if we are no longer an emerging growth company under the Jumpstart Our Business Startups Act (the "JOBS Act"), our independent registered public accounting firm to issue a report on that assessment beginning with our Annual Report on Form 10-K for the year ending December 31, 2015.2016. During the course of this documentation and testing, we may identify weaknesses or deficiencies that we may be unable to remedy before the requisite deadline for those reports. In connection with the audit of our consolidated financial statements forFor the year ended December 31, 2013, we and our independent registered public accounting firm identified a material weakness in our internal controls over financial reporting. This material weakness related to our inability to prepare accurate financial statements, resulting from a lack of reconciliations, a lack of detailed review and

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insufficient resources and level of technical accounting expertise within the accounting function. AlthoughTo address this material weakness, we have hired senior accounting and finance employees, reallocated existing internal resources and retained third-party consultants to help enhance our internal controls over financial reporting following reviews of our accounting and finance function conducted by members of senior management and by a third-party consultant,consultant. Although no material weakness was identified for the year ended December 31, 2014, there can be no assurance that we will remediate this material weakness or avoid future weaknesses or deficiencies. Any failure to remediate this material weakness and any future weaknesses or deficiencies or any failure to implement required new or improved controls or difficulties encountered in their implementation could cause us to fail to meet our reporting obligations or result in material misstatements in our financial statements. If our management or our independent registered public accounting firm were to conclude in their reports that our internal control over financial reporting was not effective, investors could lose confidence in our reported financial information, and the trading price of our Class A common stock could drop significantly. Failure to comply with Section 404 of Sarbanes-Oxley could potentially subject us to sanctions or investigations by the SEC, FINRA or other regulatory authorities, as well as increasing the risk of liability arising from litigation based on securities law.

We intend to pay regular dividends to our stockholders, but our ability to do so may be limited by our holding company structure, contractual restrictions and regulatory requirements.

          After the consummation of this offering, we intend to pay cash dividends on a quarterly basis. See "Dividend Policy." However, we are a holding company, with our principal asset after the consummation of this offering being our direct and indirect equity interests in Virtu Financial, and we will have no independent means of generating revenue. Accordingly, as the sole managing member of Virtu Financial, we intend to cause, and will rely on, Virtu Financial to make distributions to its equityholders, including the Founder Post-IPO Member, the Silver Lake Post-IPO Members, the Management Vehicles, the Management MembersVirtu Employee Holdco and us, to fund our dividends. When Virtu Financial makes such distributions, the other equityholders of Virtu Financial will be entitled to receive equivalent distributions pro rata based on their economic interests in Virtu Financial. See "Organizational Structure." In order for Virtu Financial to make distributions, it may need to receive distributions from its subsidiaries. Certain of these subsidiaries are or may in the future be subject to regulatory capital requirements that limit the size or frequency of distributions. See " — Risks Related to Our Business — Failure to comply with applicable regulatory capital requirements could

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subject us to sanctions imposed by the SEC, FINRA and other SROs or regulatory bodies." If Virtu Financial is unable to cause these subsidiaries to make distributions, we may not receive adequate distributions from Virtu Financial in order to fund our dividends.

          Our board of directors will periodically review the cash generated from our business and the capital expenditures required to finance our global growth plans and determine whether to modify the amount of regular dividends and/or declare periodic special dividends to our stockholders. Our board of directors will take into account general economic and business conditions, including our financial condition and results of operations, capital requirements, contractual restrictions, including restrictions contained in our credit agreement, business prospects and other factors that our board of directors considers relevant. There can be no assurance that our board of directors will not reduce the amount of regular cash dividends or cause us to cease paying dividends altogether. In addition, our credit agreement limits the amount of distributions our subsidiaries, including Virtu Financial, can make to us and the purposes for which distributions could be made. Accordingly, we may not be able to pay dividends even if our board of directors would otherwise deem it appropriate. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources" and "Description of Capital Stock."

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Provisions in our charter documents and certain rules imposed by regulatory authorities may delay or prevent our acquisition by a third party.

          Our amended and restated certificate of incorporation and by-laws will contain several provisions that may make it more difficult or expensive for a third party to acquire control of us without the approval of our board of directors. These provisions, which may delay, prevent or deter a merger, acquisition, tender offer, proxy contest or other transaction that stockholders may consider favorable, include the following, some of which may only become effective when the Founder Post-IPO Member or any of its affiliates or permitted transferees no longer beneficially own shares representing 25% of our issued and outstanding common stock (the "Triggering Event"):

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the 10 vote per share feature of our Class B common stock and Class D common stock;



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the division of our board of directors into three classes and the election of each class for three-year terms;



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the sole ability of the board of directors to fill a vacancy created by the expansion of the board of directors;



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advance notice requirements for stockholder proposals and director nominations;



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after the Triggering Event, provisions limiting stockholders ability to call special meetings of stockholders, to require special meetings of stockholders to be called and to take action by written consent;



•

after the Triggering Event, in certain cases, the approval of holders of at least 75% of the shares entitled to vote generally on the making, alteration, amendment or repeal of our certificate of incorporation or by-laws will be required to adopt, amend or repeal our by-laws, or amend or repeal certain provisions of our certificate of incorporation;



•

after the Triggering Event, the required approval of holders of at least 75% of the shares entitled to vote at an election of the directors to remove directors, which removal may only be for cause; and



•

the ability of our board of directors to designate the terms of and issue new series of preferred stock without stockholder approval, which could be used, among other things, to institute a rights plan that would have the effect of significantly diluting the stock ownership of a potential hostile acquirer, likely preventing acquisitions that have not been approved by our board of directors.

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          These provisions of our amended and restated certificate of incorporation and by-laws could discourage potential takeover attempts and reduce the price that investors might be willing to pay for shares of our Class A common stock in the future, which could reduce the market price of our Class A common stock. For more information, see "Description of Capital Stock."

          In addition, a third party attempting to acquire us or a substantial position in our Class A common stock may be delayed or ultimately prevented from doing so by change in ownership or control regulations to which certain of our regulated subsidiaries are subject. FINRA's NASD Rule 1017 generally provides that FINRA approval must be obtained in connection with any transaction resulting in a single person or entity owning, directly or indirectly, 25% or more of a member firm's equity and would include a change in control of a parent company. Similarly, Virtu Financial Ireland Limited is subject to change in control regulations promulgated by the Central Bank of Ireland. We may also be subject to similar restrictions in other jurisdictions in which we operate. These regulations could discourage potential takeover attempts and reduce the price that investors might be willing to pay for shares of our Class A common stock in the future, which could reduce the market price of our Class A common stock.

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Our stock price may be volatile, and you may be unable to resell your shares at or above the offering price or at all.

          Prior to this offering, there has been no public market for our Class A common stock, and an active trading market may not develop or be sustained upon the completion of this offering. The initial public offering price of the Class A common stock offered hereby was determined through our negotiations with the underwriters and may not be indicative of the market price of the Class A common stock after this offering. The market price of our Class A common stock after this offering will be subject to significant fluctuations in response to, among other factors, variations in our operating results and market conditions specific to our business.

          Furthermore, in recent years the stock market has experienced significant price and volume fluctuations. This volatility has had a significant impact on the market price of securities issued by many companies, including companies in our industry. The changes frequently appear to occur without regard to the operating performance of the affected companies. As such, the price of our Class A common stock could fluctuate based upon factors that have little or nothing to do with us, and these fluctuations could materially reduce the price of our Class A common stock and materially affect the value of your investment.

Because the initial public offering price per share of Class A common stock is substantially higher than our book value per share, purchasers in this offering will immediately experience a substantial dilution in net tangible book value.

          Purchasers of our Class A common stock will experience immediate and substantial dilution in net tangible book value per share from the initial public offering price per share. After giving effect to the reorganization transactions, our entry into the tax receivable agreements, the sale of the 16,532,272 shares of Class A common stock we have offered hereby (after deducting underwriting discounts and commissions and estimated offering expenses payable by us) and the application of the net proceeds therefrom, our pro forma net tangible book value as of December 31, 2013,2014, would have been $a deficit of $400.4 million, or $$(2.93) per share of Class A common stock and Class B common stock (assuming that the Virtu Post-IPO Members exchange all of their Virtu Financial Units (andand corresponding shares of Class C common stock or Class D common stock, as applicable)applicable, for shares of our Class A common stock and Class B common stock, as applicable, on a one-for-one basis). This value represents an immediate dilution in net tangible book value of $$20.93 per share to new investors purchasing shares of our Class A common stock in this offering. A calculation of the dilution purchasers will incur is provided below under "Dilution."

After the completion of this offering and giving effect to the use of the net proceeds from the offering, we will only have a limited amount of remaining IPO proceeds available for our use, which may limit our ability to grow our business through acquisitions or other strategic investments.

          After the completion of this offering and giving effect to the use of the net proceeds from the offering (including acquiring shares of Class A common stock from the Silver Lake Post-IPO Stockholder and Virtu Financial Units and corresponding shares of Class C common stock from certain of the Virtu Post-IPO Members), we will only have $23.3 million of the remaining net proceeds from the IPO (or $55.5 million if the underwriters exercise their option to purchase additional shares in full) available for our working capital and general corporate purposes. This may limit our ability to finance our growth through strategic acquisitions requiring cash, including the acquisition of, or the investment in, businesses, products, services or technologies that are complementary to our current business. To the extent that we do not have enough capital to fund any such acquisition or investment, we may need to raise additional debt or equity capital. The terms of any debt or equity financing transaction will depend on market conditions, our business

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and financial condition and other factors. There can be no assurance that we will be able to complete a debt or equity financing or that any such financing will be on terms favorable to us and our stockholders.

We will incur increased costs as a result of being a public company.

          As a public company, we will incur significant levels of legal, accounting and other expenses that we did not incur as a privately-owned corporation. Sarbanes-Oxley and related rules of the SEC, together with the listing requirements of NASDAQ, impose significant requirements relating to disclosure controls and procedures and internal control over financial reporting. We expect that compliance with these public company requirements will increase our costs, require additional resources and make some activities more time consuming than they have been in the past when we were privately owned. We will be required to expend considerable time and resources complying with public company regulations. In addition, these laws and regulations could make it more difficult or costly for us to obtain certain types of insurance, including director and officer liability insurance, and we may be forced to accept reduced policy limits and coverage or incur substantially higher costs to obtain the same or similar coverage. In addition, these laws and regulations could make it more difficult for us to attract and retain qualified persons to serve on our board of directors or as executive officers and may divert management's attention. Furthermore, if we are unable to satisfy our obligations as a public company, we could be subject to delisting of our Class A common stock, fines, sanctions and other regulatory action.

Our anticipated reliance on exemptions from certain disclosure requirements under the JOBS Act may deter trading in our Class A common stock.

          We qualify as an "emerging growth company" under the JOBS Act. As a result, we are permitted to, and intend to, rely on exemptions from certain disclosure requirements. For so long as we are an emerging growth company, we will not be required to:

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provide an auditor attestation and report with respect to management's assessment of the effectiveness of our internal controls over financial reporting pursuant to section 404(b) of the Sarbanes-Oxley Act;



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comply with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor's report providing additional information about the audit and the financial statements (i.e., an auditor discussion and analysis); and



•

submit certain executive compensation matters to shareholder advisory votes, such as "say-on-pay" and "say-on-frequency," and disclose certain executive compensation related items such as the correlation between executive compensation and performance and comparisons of the Chief Executive Officer's compensation to median employee compensation.

          In addition, Section 107 of the JOBS Act also provides that an emerging growth company can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. In other words, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected not to take advantage of the benefits of this extended transition period.

          We will remain an "emerging growth company" for up to five years, or until the earliest of (i) the last day of the first fiscal year in which our total annual gross revenues exceed $1 billion, (ii) the date that we become a "large accelerated filer" as defined in Rule 12b-2 under the

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Securities Exchange Act of 1934, as amended (the "Exchange Act"), which would occur if the market value of our common stock that is held by non-affiliates exceeds $700 million as of the last business day of our most recently completed second fiscal quarter or (iii) the date on which we have issued more than $1 billion in non-convertible debt during the preceding three-year period.

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          Until such time, however, we cannot predict if investors will find our Class A common stock less attractive because we may rely on these exemptions. If some investors find our Class A common stock less attractive, there may be a less active trading market for our Class A common stock and our stock price may be more volatile.

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about us or our business, or publish projections for our business that exceed our actual results, our stock price and trading volume could decline.

          The trading market for our Class A common stock may be affected by the research and reports that securities or industry analysts publish about us or our business. We do not currently have, and may never obtain, research coverage by securities and industry analysts. If no securities or industry analysts commence coverage of our Company, the trading price for our Class A common stock and the trading volume could decline. In the event we obtain securities or industry analyst coverage, if one or more of the analysts who covers us downgrades our Class A common stock or publishes inaccurate or unfavorable research about our business, our stock price could decline. In addition, if we obtain analyst coverage, the analysts' projections may have little or no relationship to the results we actually achieve and could cause our stock price to decline if we fail to meet their projections. If one or more of these analysts ceases coverage of us or fails to publish reports on us regularly, our stock price or trading volume could decline.

We have broad discretion over the use of the net proceeds from this offering and may not use them effectively.

          Our management will have broad discretion over the application of a portion of the net proceeds from this offering and could spend such net proceeds in ways that do not improve our financial condition or results of operations, or enhance the value of our Class A common stock. The failure by our management to apply these funds effectively could result in financial losses and cause the price of our Class A common stock to decline. Pending their use, we may invest such net proceeds in a manner that does not produce income or that loses value.

Table of Contents

FORWARD-LOOKING STATEMENTS

          This prospectus contains forward-looking statements. You should not place undue reliance on forward-looking statements because they are subject to numerous uncertainties and factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Forward-looking statements include information concerning our possible or assumed future results of operations, including descriptions of our business strategy. These forward-looking statements can be identified by the use of forward-looking terminology, including the terms "may," "will," "should," "believe," "expect," "anticipate," "intend," "plan," "estimate," "project" or, in each case, their negative, or other variations or comparable terminology and expressions. These statements are based on assumptions that we have made in light of our experience in the industry as well as our perceptions of historical trends, current conditions, expected future developments and other factors we believe are appropriate under the circumstances. As you read and consider this prospectus, you should understand that these statements are not guarantees of performance or results and that our actual results of operations, financial condition and liquidity, and the development of the industry in which we operate, may differ materially from those made in or suggested by the forward-looking statements contained in this prospectus. By their nature, forward-looking statements involve known and unknown risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. Although we believe that the forward-looking statements contained in this prospectus are based on reasonable assumptions, you should be aware that many factors could affect our actual financial results or results of operations and could cause actual results to differ materially from those in such forward-looking statements, including but not limited to:

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reduced levels of overall trading activity;



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dependence upon trading counterparties and clearing houses performing their obligations to us;



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failures of our customized trading platform;



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risks inherent to the electronic market making business and trading generally;



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increased competition in market making activities;



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dependence on continued access to sources of liquidity;



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risks associated with self-clearing and other operational elements of our business;



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compliance with laws and regulations, including those specific to our industry;



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obligation to comply with applicable regulatory capital requirements;



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litigation or other legal and regulatory-based liabilities;



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proposed legislation that would impose taxes on certain financial transactions in the European Union, the U.S. and other jurisdictions;



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obligation to comply with laws and regulations applicable to our international operations;



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enhanced media and regulatory scrutiny and its impact upon public perception of us or of companies in our industry;



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need to maintain and continue developing proprietary technologies;



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failure to maintain system security or otherwise maintain confidential and proprietary information;



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capacity constraints, system failures, and delays;