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Hedge funds are private, actively managed investment funds. They invest in a diverse range of markets, investment instruments, and strategies and are subject to the regulatory restrictions of their country. U.S. regulations limit hedge fund participation to certain classes of accredited investors.
Hedge funds are often open-ended, and allow additions or withdrawals by their investors. A hedge fund's value is calculated as a share of the fund's net asset value, meaning that increases and decreases in the value of the fund's investment assets (and fund expenses) are directly reflected in the amount an investor can later withdraw.
Most hedge fund investment strategies aim to achieve a positive return on investment regardless of whether markets are rising or falling. Hedge fund managers typically invest money of their own in the fund they manage, which serves to align their own interests with those of the investors in the fund. A hedge fund typically pays its investment manager an annual management fee, which is a percentage of the assets of the fund, and a performance fee if the fund's net asset value increases during the year. Some hedge funds have a net asset value of several billion dollars. As of 2009[update], hedge funds represented 1.1% of the total funds and assets held by financial institutions. As of April 2012, the estimated size of the global hedge fund industry was US$2.13 trillion.
Because hedge funds are not sold to the general public or retail investors, the funds and their managers have historically been exempt from some of the regulation that governs other funds and investment managers with regard to how the fund may be structured and how strategies and techniques are employed. Regulations passed in the United States and Europe after the 2008 credit crisis were intended to increase government oversight of hedge funds and eliminate certain regulatory gaps.
During the US bull market of the 1920s, there were numerous private investment vehicles available to wealthy investors. Of that period, the best known today, is the Graham-Newman Partnership founded by Benjamin Graham and Jerry Newman which was cited by Warren Buffett, in a 2006 letter to the Museum of American Finance, as an early hedge fund.
Financial journalist Alfred W. Jones is credited with coining the phrase "hedged fund"  and is erroneously credited with creating the first hedge fund structure in 1949. Jones referred to his fund as being "hedged", a term then commonly used on Wall Street, to describe the management of investment risk due to changes in the financial markets. In 1968 there were almost 200 hedge funds, and the first fund of funds that utilized hedge funds were created in 1969 in Geneva.
In the 1970s hedge funds specialized in a single strategy, and most fund managers followed the long/short equity model.[clarification needed] Many hedge funds closed during the recession of 1969–70 and the 1973–1974 stock market crash due to heavy losses. They received renewed attention in the late 1980s. During the 1990s the number of hedge funds increased significantly, funded with wealth created during the 1990s stock market rise. The increased interest was due to the aligned-interest compensation structure (i.e. common financial interests) and the promise of above high returns. Over the next decade hedge fund strategies expanded to include: credit arbitrage, distressed debt, fixed income, quantitative, and multi-strategy. US institutional investors such as pension and endowment funds began allocating greater portions of their portfolios to hedge funds.
During the first decade of the 21st century, hedge funds gained popularity worldwide and by 2008, the worldwide hedge fund industry held US$1.93 trillion in assets under management (AUM). However, the 2008 financial crisis caused many hedge funds to restrict investor withdrawals and their popularity and AUM totals declined. AUM totals rebounded and in April 2011 were estimated at almost $2 trillion. As of February 2011[update], 61% of worldwide investment in hedge funds comes from institutional sources. In June 2011, the hedge funds with the greatest AUM was Bridgewater Associates (US$58.9 billion), Man Group (US$39.2 billion), Paulson & Co. (US$35.1 billion), Brevan Howard (US$31 billion), and Och-Ziff (US$29.4 billion). Bridgewater Associates, had $70 billion under management as of 1 March 2012[update]. At the end of that year, the 241 largest hedge fund firms in the United States collectively held $1.335 trillion. In April 2012, the hedge fund industry reached a record high of US$2.13 trillion total assets under management.
Hedge funds employ a wide range of trading strategies but classifying them is difficult due to the rapidity with which they change and evolve. However, hedge fund strategies are generally said to fall into four main categories: global macro, directional, event-driven, and relative value (arbitrage). These four categories are distinguished by investment style and each have their own risk and return characteristics. Managed futures or multi-strategy funds may not fit into these categories, but are nonetheless popular strategies with investors. It is possible for hedge funds to commit to a certain strategy or employ multiple strategies to allow flexibility, for risk management purposes, or to achieve diversified returns. The hedge fund's prospectus, also known as an offering memorandum, offers potential investors information about key aspects of the fund, including the fund's investment strategy, investment type, and leverage limit.
The elements contributing to a hedge fund strategy include: the hedge fund's approach to the market; the particular instrument used; the market sector the fund specializes in (e.g. healthcare); the method used to select investments; and the amount of diversification within the fund. There are a variety of market approaches to different asset classes, including equity, fixed income, commodity and currency. Instruments used include: equities, fixed income, futures, options and swaps. Strategies can be divided into those in which investments can be selected by managers, known as "discretionary/qualitative", or those in which investments are selected using a computerized system, known as "systematic/quantitative". The amount of diversification within the fund can vary; funds may be multi-strategy, multi-fund, multi-market, multi-manager or a combination.
Sometimes hedge fund strategies are described as absolute return and are classified as either market neutral or directional. Market neutral funds have less correlation to overall market performance by "neutralizing" the effect of market swings, whereas directional funds utilize trends and inconsistencies in the market and have greater exposure to the market's fluctuations.
Global macro 
Hedge funds utilizing a global macro investing strategy take sizable positions in share, bond or currency markets in anticipation of global macroeconomic events in order to generate a risk-adjusted return. Global macro fund managers use macroeconomic ("big picture") analysis based on global market events and trends to identify opportunities for investment that would profit from anticipated price movements. While global macro strategies have a large amount of flexibility due to their ability to use leverage to take large positions in diverse investments in multiple markets, the timing of the implementation of the strategies is important in order to generate attractive, risk-adjusted returns. Global macro is often categorized as a directional investment strategy.
Global macro strategies can be divided into discretionary and systematic approaches. Discretionary trading is carried out by investment managers who identify and select investments; systematic trading is based on mathematical models and executed by software with limited human involvement beyond the programming and updating of the software. These strategies can also be divided into trend or counter-trend approaches depending on whether the fund attempts to profit from following trends (long or short-term) or attempts to anticipate and profit from reversals in trends.
Within global macro strategies, there are further sub-strategies including "systematic diversified", in which the fund trades in diversified markets, or "systematic currency", in which the fund trades in currency markets. Other sub-strategies include those employed by Commodity Trading Advisors (CTA), where the fund trades in futures (or options) in commodity markets or in swaps. This is also known as a managed future fund. CTAs trade in commodities (such as gold) and financial instruments, including stock indices. In addition they take both long and short positions, allowing them to make profit in both market upswings and downswings.
Directional investment strategies utilize market movements, trends, or inconsistencies when picking stocks across a variety of markets. Computer models can be used, or fund managers will identify and select investments. These types of strategies have a greater exposure to the fluctuations of the overall market than do market neutral strategies. Directional hedge fund strategies include US and international long/short equity hedge funds, where long equity positions are hedged with short sales of equities or equity index options.
Within directional strategies, there are a number of sub-strategies. "Emerging markets" funds focus on emerging markets such as China and India, whereas "sector funds" specialize in specific areas including technology, healthcare, biotechnology, pharmaceuticals, energy and basic materials. Funds using a "fundamental growth" strategy invest in companies with more earnings growth than the overall stock market or relevant sector, while funds using a "fundamental value" strategy invest in undervalued companies. Funds that use quantitative techniques for equity trading are described as using a "quantitative directional" strategy. Funds using a "short bias" strategy take advantage of declining equity prices using short positions.
Event-driven strategies concern situations in which the underlying investment opportunity and risk are associated with an event. An event-driven investment strategy finds investment opportunities in corporate transactional events such as consolidations, acquisitions, recapitalizations, bankruptcies, and liquidations. Managers employing such a strategy capitalize on valuation inconsistencies in the market before or after such events, and take a position based on the predicted movement of the security or securities in question. Large institutional investors such as hedge funds are more likely to pursue event-driven investing strategies than traditional equity investors because they have the expertise and resources to analyze corporate transactional events for investment opportunities.
Corporate transactional events generally fit into three categories: distressed securities, risk arbitrage and special situations. Distressed securities include such events as restructurings, recapitalizations, and bankruptcies. A distressed securities investment strategy involves investing in the bonds or loans of companies facing bankruptcy or severe financial distress, when these bonds or loans are being traded at a discount to their value. Hedge fund managers pursuing the distressed debt investment strategy aim to capitalize on depressed bond prices. Hedge funds purchasing distressed debt may prevent those companies from going bankrupt, as such an acquisition deters foreclosure by banks. While event-driven investing in general tends to thrive during a bull market, distressed investing works best during a bear market.
Risk arbitrage or merger arbitrage includes such events as mergers, acquisitions, liquidations, and hostile takeovers. Risk arbitrage typically involves buying and selling the stocks of two or more merging companies to take advantage of market discrepancies between acquisition price and stock price. The risk element arises from the possibility that the merger or acquisition will not go ahead as planned; hedge fund managers will use research and analysis to determine if the event will take place.
Special situations are events that impact the value of a company's stock, including the restructuring of a company or corporate transactions including spin-offs, share-buy-backs, security issuance/repurchase, asset sales, or other catalyst-oriented situations. To take advantage of special situations the hedge fund manager must identify an upcoming event that will increase or decrease the value of the company's equity and equity-related instruments.
Other event-driven strategies include: credit arbitrage strategies, which focus on corporate fixed income securities; an activist strategy, where the fund takes large positions in companies and uses the ownership to participate in the management; a strategy based on predicting the final approval of new pharmaceutical drugs; and legal catalyst strategy, which specializes in companies involved in major lawsuits.
Relative value 
Relative value arbitrage strategies take advantage of relative discrepancies in price between securities. The price discrepancy can occur due to mispricing of securities compared to related securities, the underlying security or the market overall. Hedge fund managers can use various types of analysis to identify price discrepancies in securities, including mathematical, technical or fundamental techniques. Relative value is often used as a synonym for market neutral, as strategies in this category typically have very little or no directional market exposure to the market as a whole. Other relative value sub-strategies include:
- Fixed income arbitrage: exploit pricing inefficiencies between related fixed income securities.
- Equity market neutral: exploits differences in stock prices by being long and short in stocks within the same sector, industry, market capitalization, country, which also creates a hedge against broader market factors.
- Convertible arbitrage: exploit pricing inefficiencies between convertible securities and the corresponding stocks.
- Asset-backed securities (Fixed-Income asset-backed): fixed income arbitrage strategy using asset-backed securities.
- Credit long / short: the same as long / short equity but in credit markets instead of equity markets.
- Statistical arbitrage: identifying pricing inefficiencies between securities through mathematical modeling techniques
- Volatility arbitrage: exploit the change in implied volatility instead of the change in price.
- Yield alternatives: non-fixed income arbitrage strategies based on the yield instead of the price.
- Regulatory arbitrage: the practice of taking advantage of regulatory differences between two or more markets.
- Risk arbitrage: exploiting market discrepancies between acquisition price and stock price
In addition to those strategies within the four main categories, there are several strategies that do not fit into these categorizations or can apply across several of them.
- Fund of hedge funds (Multi-manager): a hedge fund with a diversified portfolio of numerous underlying single-manager hedge funds.
- Multi-strategy: a hedge fund using a combination of different strategies to reduce market risk.
- Multi-manager: a hedge fund wherein the investment is spread along separate sub-managers investing in their own strategy.
- 130-30 funds: equity funds with 130% long and 30% short positions, leaving a net long position of 100%.
- Risk parity: equalizing risk by allocating funds to a wide range of categories while maximizing gains through financial leveraging.
Because investments in hedge funds can add diversification to investment portfolios, investors may use them as a tool to reduce their overall portfolio risk exposures. Managers of hedge funds use particular trading strategies and instruments with the specific aim of reducing market risks to produce risk-adjusted returns, which are consistent with investors' desired level of risk. Hedge funds ideally produce returns relatively uncorrelated with market indices. While "hedging" can be a way of reducing the risk of an investment, hedge funds, like all other investment types, are not immune to risk. According to a report by the Hennessee Group, hedge funds were approximately one-third less volatile than the S&P 500 between 1993 and 2010.
Risk management 
Investors in hedge funds are, in most countries, required to be sophisticated qualified investors who are assumed to be aware of the investment risks, and accept these risks because of the potential returns relative to those risks. Fund managers may employ extensive risk management strategies in order to protect the fund and investors. According to the Financial Times, "big hedge funds have some of the most sophisticated and exacting risk management practices anywhere in asset management." Hedge fund managers may hold a large number of investment positions for short durations and are likely to have a particularly comprehensive risk management system in place. Funds may have "risk officers" who assess and manage risks but are not otherwise involved in trading, and may employ strategies such as formal portfolio risk models. A variety of measuring techniques and models may be used to calculate the risk incurred by a hedge fund's activities; fund managers may use different models depending on their fund's structure and investment strategy. Some factors, such as normality of return, are not always accounted for by conventional risk measurement methodologies. Funds which use value at risk as a measurement of risk may compensate for this by employing additional models such as drawdown and "time under water" to ensure all risks are captured.
In addition to assessing the market-related risks that may arise from an investment, investors commonly employ operational due diligence to assess the risk that error or fraud at a hedge fund might result in loss to the investor. Considerations will include the organization and management of operations at the hedge fund manager, whether the investment strategy is likely to be sustainable, and the fund's ability to develop as a company.
Transparency and regulatory considerations 
Since hedge funds are private entities and have few public disclosure requirements, this is sometimes perceived as a lack of transparency. Another common perception of hedge funds is that their managers are not subject to as much regulatory oversight and/or registration requirements as other financial investment managers, and more prone to manager-specific idiosyncratic risks such as style drifts, faulty operations, or fraud. New regulations introduced in the US and the EU as of 2010 require hedge fund managers to report more information, leading to greater transparency. In addition, investors, particularly institutional investors, are encouraging further developments in hedge fund risk management, both through internal practices and external regulatory requirements. The increasing influence of institutional investors has led to greater transparency: hedge funds increasingly provide information to investors including valuation methodology, positions and leverage exposure.
Hedge funds share many of the same types of risk as other investment classes, including liquidity risk and manager risk. Liquidity refers to the degree to which an asset can be bought and sold or converted to cash; similar to private equity funds, hedge funds employ a lock-up period during which an investor cannot remove money. Manager risk refers to those risks which arise from the management of funds. As well as specific risks such as style drift, which refers to a fund manager "drifting" away from an area of specific expertise, manager risk factors include valuation risk, capacity risk, concentration risk and leverage risk. Valuation risk refers to the concern that the net asset value of investments may be inaccurate; capacity risk can arise from placing too much money into one particular strategy, which may lead to fund performance deterioration; and concentration risk may arise if a fund has too much exposure to a particular investment, sector, trading strategy, or group of correlated funds. These risks may be managed through defined controls over conflict of interest, restrictions on allocation of funds, and set exposure limits for strategies.
Many investment funds use leverage, the practice of borrowing money or trading on margin in addition to capital from investors. Although leverage can increase potential returns, the opportunity for larger gains is weighed against the possibility of greater losses. Hedge funds employing leverage are likely to engage in extensive risk management practices. In comparison with investment banks, hedge fund leverage is relatively low; according to a National Bureau of Economic Research working paper, the average leverage for investment banks is 14.2, compared to between 1.5 and 2.5 for hedge funds.
Some types of funds, including hedge funds, are perceived as having a greater appetite for risk, with the intention of maximizing returns, subject to the risk tolerance of investors and the fund manager. Managers will have an additional incentive to increase risk oversight when their own capital is invested in the fund.
Fees and remuneration 
Fees paid to hedge funds 
Management fees are calculated as a percentage of the fund's net asset value and typically range from 1% to 4% per annum, with 2% being standard. They are usually expressed as an annual percentage, but calculated and paid monthly or quarterly. Management fees for hedge funds are designed to cover the operating costs of the manager, whereas the performance fee provides the manager's profits. However, due to economies of scale the management fee from larger funds can generate a significant part of a manager's profits, and as a result some fees have been criticized by some public pension funds, such as CalPERS, for being too high.
The performance fee is typically 20% of the fund's profits during any year, though they range between 10% and 50%. Performance fees are intended to provide an incentive for a manager to generate profits. Performance fees have been criticized by Warren Buffett, who believes that because hedge funds share only the profits and not the losses, such fees create an incentive for high-risk investment management. Performance fee rates have fallen since the start of the credit crunch.
Almost all hedge fund performance fees include a "high water mark" (or "loss carryforward provision"), which means that the performance fee only applies to net profits (i.e., profits after losses in previous years have been recovered). This prevents managers from receiving fees for volatile performance, though a manager will sometimes close a fund that has suffered serious losses and start a new fund, rather than attempting to recover the losses over a number of years without performance fee.
Some performance fees include a "hurdle", so that a fee is only paid on the fund's performance in excess of a benchmark rate (e.g. LIBOR) or a fixed percentage. A "soft" hurdle means the performance fee is calculated on all the fund's returns if the hurdle rate is cleared. A "hard" hurdle is calculated only on returns above the hurdle rate. A hurdle is intended to ensure that a manager is only rewarded if the fund generates returns in excess of the returns that the investor would have received if they had invested their money elsewhere.
Some hedge funds charge a redemption fee (or withdrawal fee) for early withdrawals during a specified period of time (typically a year) or when withdrawals exceed a predetermined percentage of the original investment. The purpose of the fee is to discourage short-term investing, reduce turnover and deter withdrawals after periods of poor performance. Unlike management fees and performance fees, redemption fees are usually kept by the fund.
Remuneration of portfolio managers 
Hedge fund management firms are usually owned by their portfolio managers, who are therefore entitled to any profits that the business makes. As management fees are intended to cover the firm's operating costs, performance fees (and any excess management fees) are generally distributed to the firm's owners as profits. Many managers also have large stakes in their own funds.
Top hedge fund managers earn what has been termed "extraordinary" amounts of money, with the highest-grossing getting up to $4 billion per year. Earnings at the top are far higher than in any other sector of the financial industry. "They wouldn't even consider getting out of bed for the $13m (£8m) Goldman Sachs' boss Lloyd Blankfein was paid last year," writes Richard Anderson, a BBC Business reporter. Collectively, the top 25 hedge fund managers regularly earn more than all 500 of the chief executives in the S&P 500. Most hedge fund managers are remunerated much less, however, and the competitiveness of the industry, along with the structure of financial incentives, means that failure can lead to not getting paid. The BBC quotes an industry insider who says "a lot of managers are not making any money at all."
In 2011, the top manager earned $3,000m, the tenth earned $210m and the 30th earned $80m. In 2011, the average earnings for the 25 highest compensated hedge fund managers in the United States was $576 million. According to Absolute Return + Alpha, in 2011 the mean total compensation for all hedge fund investment professionals was $690,786 and the median compensation was $312,329. The same figures for hedge fund CEOs were $1,037,151 and $600,000, and for chief investment officers were $1,039,974 and $300,000.
Of the 1,226 people on the Forbes World's Billionaires list for 2012, 36 of the financiers listed "derived significant chunks" of their wealth from hedge fund management. Among the richest 1,000 people in the United Kingdom, 54 were hedge fund managers, according to the Sunday Times Rich List for 2012. (Funds do not tend to report compensation. Published lists of the amounts earned by top managers use estimates based on factors such as the fees charged by their funds and the capital they are thought to have invested in them.)
A hedge fund is an investment vehicle that is structured as a corporation or partnership. The fund is managed by an investment manager in the form of an organization or company that is legally and financially distinct from the hedge fund and its portfolio of assets. Many investment managers utilize service providers for operational support. Service providers include prime brokers, administrators, distributors and accounting firms.
Prime brokers clear trades, and provide leverage and short-term financing. They are usually divisions of large investment banks. The prime broker acts as a counterparty to derivative contracts, and lends securities for particular investment strategies, such as long/short equities and convertible bond arbitrage. It can provide custodial services for the fund's assets, and execution and clearing services for the hedge fund manager.
Hedge fund administrators are responsible for operations, accounting, and valuation services. This back office support allows fund managers to concentrate on trades. Administrators also process subscriptions and redemptions, and perform various shareholder services. Hedge funds in the United States are not required to appoint an administrator, and all of these functions can be performed by an investment manager. A number of conflict of interest situations may arise in this arrangement, particularly in the calculation of a fund's net asset value (NAV). Some US funds voluntarily employ external auditors, thereby offering a greater degree of transparency.
A distributor is an underwriter, broker, dealer, or other person who participates in the distribution of securities. The distributor is also responsible for marketing the fund to potential investors. Many hedge funds do not have distributors, and in such cases the investment manager will be responsible for distribution of securities and marketing, though many funds also use placement agents and broker-dealers for distribution.
Most funds use an independent accounting firm to audit the assets of the fund, provide tax services and perform a complete audit of the fund's financial statements. The year-end audit is often performed in accordance with either US generally accepted accounting principles (US GAAP) or international financial reporting standards (IFRS), depending on where the fund is established. The auditor may verify the fund's NAV and assets under management (AUM). Some auditors only provide "NAV lite" services, meaning that the valuation is based on prices received from the manager rather than independent assessment.
Domicile and taxation 
The legal structure of a specific hedge fund—in particular its domicile and the type of legal entity used—is usually determined by the tax expectations of the fund's investors. Regulatory considerations will also play a role. Many hedge funds are established in offshore financial centers to avoid adverse tax consequences for its foreign and tax exempt investors. Offshore funds that invest in the US typically pay withholding taxes on certain types of investment income but not US capital gains tax. However, the fund's investors are subject to tax in their own jurisdictions on any increase in the value of their investments. This tax treatment promotes cross-border investments by limiting the potential for multiple jurisdictions to layer taxes on investors.
US tax-exempt investors (such as pension plans and endowments) invest primarily in offshore hedge funds to preserve their tax exempt status and avoid unrelated business taxable income. The investment manager, usually based in a major financial center, pays tax on its management fees per the tax laws of the state and country where it is located. In 2011, half of the existing hedge funds were registered offshore and half onshore. The Cayman Islands was the leading location for offshore funds, accounting for 34% of the total number of global hedge funds. The US had 24%, Luxembourg 10%, Ireland 7%, the British Virgin Islands 6% and Bermuda had 3%.
Investment manager locations 
In contrast to the funds themselves, investment managers are primarily located onshore. The United States remains the largest center of investment, with US-based funds managing around 70% of global assets at the end of 2011. As of April 2012, there were approximately 3,990 investment advisers managing one or more private hedge funds registered with the Securities and Exchange Commission. New York City and the Gold Coast area of Connecticut are the leading locations for US hedge fund managers.
London is Europe's leading center for hedge fund managers. According to EuroHedge data, around 800 funds located in the UK managed some 85% of European-based hedge fund assets in 2011. Interest in hedge funds in Asia has increased significantly since 2003, especially in Japan, Hong Kong, and Singapore. However, the UK and the US remain the leading locations for management of Asian hedge fund assets.
The legal entity 
Hedge fund legal structures vary depending on location and the investor(s). Limited partnerships are principally used for US hedge funds, which are primarily aimed at US-based, taxable investors. Limited partnerships and other flow-through taxation structures assure that investors in hedge funds are not subject to both entity-level and personal-level taxation. A hedge fund structured as a limited partnership must have a general partner. The general partner may be an individual or a corporation. The general partner serves as the manager of the limited partnership, and has unlimited liability. The limited partners serve as the fund's investors, and have no responsibility for management or investment decisions. Their liability is limited to the amount of money they invest for partnership interests. As an alternative to a limited partnership arrangement, U.S. domestic hedge funds may be structured as limited liability companies, with members acting as corporate shareholders and enjoying protection from individual liability.
By contrast, offshore corporate funds are usually used for non-US investors, and when they are domiciled in an applicable offshore tax haven, no entity-level tax is imposed. Many managers of offshore funds permit the participation of tax-exempt US investors, such as pensions funds, institutional endowments and charitable trusts. As an alternative legal structure, offshore funds may be formed as an open-ended unit trust using an unincorporated mutual fund structure. Japanese investors prefer to invest in unit trusts, such as those available in the Cayman Islands.
The investment manager who organizes the hedge fund may retain an interest in the fund, either as the general partner of a limited partnership or as the holder of "founder shares" in a corporate fund. For offshore funds structured as corporate entities, the fund may appoint a board of directors. The board's primary role is to provide a layer of oversight while representing the interests of the shareholders. However, in practice board members may lack sufficient expertise to be effective in performing those duties. The board may include both affiliated directors who are employees of the fund and independent directors whose relationship to the fund is limited.
Types of funds 
Side pockets 
A side pocket is a mechanism whereby a fund compartmentalizes assets that are relatively illiquid or difficult to value reliably. When an investment is side-pocketed, its value is calculated separately from the value of the fund’s main portfolio. Because side pockets are used to hold illiquid investments, investors do not have the standard redemption rights with respect to the side pocket investment that they do with respect to the fund’s main portfolio. Profits or losses from the investment are allocated on a pro rata basis only to those who are investors at the time the investment is placed into the side pocket and aren’t shared with new investors. Funds typically carry side pocket assets "at cost" for purposes of calculating management fees and reporting net asset values. This allows fund managers to avoid attempting a valuation of the underlying investments, which may not always have a readily available market value.
Side pockets were widely used by hedge funds during the 2008 financial crisis amidst a flood of withdrawal requests. Side pockets allowed fund managers to lay away illiquid securities until market liquidity improved, a move that reduced losses. Despite these benefits, some investors complained that the practice was abused and not always transparent.
Hedge funds must conform to the national, federal and state regulatory laws in their respective locations. The U.S. regulations and restrictions that apply to hedge funds differ from its mutual funds. According to a report by the International Organization of Securities Commissions the most common form of regulation pertains to restrictions on financial advisers and hedge fund managers in an effort to minimize client fraud. On the other hand, U.S. hedge funds are exempt from many of the standard registration and reporting requirements because they only accept accredited investors. In 2010, regulations were enacted in the US and European Union, which introduced additional hedge fund reporting requirements. These included the U.S.'s Dodd-Frank Wall Street Reform Act and European Alternative Investment Fund Managers Directive.
United States 
Hedge funds within the US are subject to regulatory, reporting and record keeping requirements. Many hedge funds also fall under the jurisdiction of the Commodity Futures Trading Commission and are subject to rules and provisions of the 1922 Commodity Exchange Act which prohibits fraud and manipulation. The Securities Act of 1933 required companies to file a registration statement with the SEC to comply with its private placement rules before offering their securities to the public. The Securities Exchange Act of 1934 required a fund with more than 499 investors to register with the SEC. The Investment Advisers Act of 1940 contained anti-fraud provisions that regulated hedge fund managers and advisers, created limits for the number and types of investors, and prohibited public offerings. The Act also exempted hedge funds from mandatory registration with the US Securities and Exchange Commission (SEC) when selling to accredited investors with a minimum of US$5 million in investment assets. Companies and institutional investors with at least US$25 million in investment assets also qualified.
In December 2004, the SEC began requiring hedge fund advisers, managing more than US$25 million and with more than 14 investors, to register with the SEC under the Investment Advisers Act. The SEC stated that it was adopting a "risk-based approach" to monitoring hedge funds as part of its evolving regulatory regimen for the burgeoning industry. The new rule was controversial, with two commissioners dissenting, and was later challenged in court by a hedge fund manager. In June 2006, the U.S. Court of Appeals for the District of Columbia overturned the rule and sent it back to the agency to be reviewed. In response to the court decision, in 2007 the SEC adopted Rule 206(4)-8, which unlike the earlier challenged rule, "does not impose additional filing, reporting or disclosure obligations" but does potentially increase "the risk of enforcement action" for negligent or fraudulent activity. Hedge fund managers with at least US$100 million in assets under management are required to file publicly quarterly reports disclosing ownership of registered equity securities and are subject to public disclosure if they own more than 5% of the class of any registered equity security. Registered advisers must report their business practices and disciplinary history to the SEC and to their investors. They are required to have written compliance policies, a chief compliance officer and their records and practices may be examined by the SEC.
The U.S.'s Dodd-Frank Wall Street Reform Act was passed in July 2010 and requires SEC registration of advisers who represented funds with more than US$150 million in assets, and funds with more than 15 US clients, and investors managing US$25 million. Registered managers must file information regarding their assets under management and trading positions. Previously, advisers with fewer than 15 clients were exempt, although many hedge fund advisers voluntarily registered with the SEC to satisfy institutional investors. Under Dodd-Frank, hedge fund managers with less than US$100 million in assets under management became subject to state regulation. This increased the number of hedge funds under state supervision. Overseas funds with more than 15 US clients and investors who managed more than US$25 million were also required to register with the SEC. The Act requires hedge funds to provide information about their trades and portfolios to regulators including the newly created Financial Stability Oversight Council. Under the "Volcker Rule", regulators are also required to implement regulations for banks, their affiliates and holding companies to limit their relationships with hedge funds and to prohibit these organizations from proprietary trading, and limit their investment in, and sponsorship of hedge funds.
Within the European Union (EU), hedge funds are primarily regulated through advisers managers. In the United Kingdom, where 80% of Europe's hedge funds are based, hedge fund managers are required to be authorised and regulated by the Financial Services Authority (FSA). Each country has their own specific restrictions on hedge fund activities, including controls on use of derivatives in Portugal, and limits on leverage in France.
In November 2010, the EU approved a law that will required all EU hedge fund managers to register with national regulatory authorities. The EU's Directive on Alternative Investment Fund Managers (AIFMD) was the first EU directive focused on hedge fund managers. According to the EU, the aim of the directive is to provide greater monitoring and control of alternative investment funds. The directive required managers to disclose more information, on a more frequent basis. It also directs hedge fund managers to hold larger amounts of capital. All hedge fund managers within the EU are subject to potential limitations on leveraged investments. The directive introduced a "passport" for hedge funds authorized in one EU country to operate throughout the EU. The scope of AIFMD is broad and encompasses managers located within the EU as well as non-EU managers that market their funds to European investors. An aspect of AIFMD which challenges established practices in the hedge funds sector is the potential restriction of remuneration through bonus deferrals and clawback provisions. Under the EU's 2010 Alternative Investment Fund Managers directive, offshore hedge funds using prime brokers as depositories are required to use EU-registered credit institutions before they can be sold in the EU. The AIFMD's regulatory requirements will essentially mandate equivalent regulations for non-EU investment funds, if they wish to operate in EU markets.
Some hedge funds are established in Offshore centers such as the Cayman Islands, Dublin, Luxembourg, the British Virgin Islands, and Bermuda which have different regulations concerning non-accredited investors, client confidentiality and fund manager independence.
Performance statistics for individual hedge funds are difficult to obtain, as the funds have historically not been required to report their performance to a central repository and restrictions against public offerings and advertisement have led many managers to refuse to provide performance information publicly. However, summaries of individual hedge fund performance are occasionally available in industry journals and databases. and investment consultancy Hennessee Group.
One estimate is that the average hedge fund returned 11.4% per year, representing a 6.7% return above overall market performance before fees, based on performance data from 8,400 hedge funds. Another is that between January 2000 and December 2009 the hedge funds outperformed other investments were significantly less volatile, with stocks falling -2.62% per year over the decade and hedge funds rising +6.54%.
Hedge funds performance is measured by comparing their returns to an estimate of their risk. Common measures are the Sharpe ratio., Treynor measure and Jensen's alpha. These measures work best when returns follow normal distributions without autocorrelation, and these assumptions are often not met in practice.
New performance measures have been introduced that attempt to address some of theoretical concerns with traditional indicators, including: modified Sharpe ratios; the Omega ratio introduced by Keating and Shadwick in 2002; Alternative Investments Risk Adjusted Performance (AIRAP) published by Sharma in 2004; and Kappa developed by Kaplan and Knowles in 2004.
Sector-size effect 
There is a debate over whether alpha (the manager's skill element in performance) has been diluted by the expansion of the hedge fund industry. Two reasons are given. First, the increase in traded volume may have been reducing the market anomalies that are a source of hedge fund performance. Second, the remuneration model is attracting more managers, which may dilute the talent available in the industry.
Hedge fund indices 
|This section does not cite any references or sources. (November 2008)|
Indices that track hedge fund returns are, in order of development, called Non-investable, Investable and Clone.
Indices play a central and unambiguous role in traditional asset markets, where they are widely accepted as representative of their underlying portfolios. Equity and debt index fund products provide investable access to most developed markets in these asset classes. Hedge funds, however, are actively managed, so that tracking is impossible. Non-investable hedge fund indices on the other hand may be more or less representative, but returns data on many of the reference group of funds is non-public. This may result in biased estimates of their returns. In an attempt to address this problem, clone indices have been created in an attempt to replicate the statistical properties of hedge funds without being directly based on their returns data. None of these approaches achieves the accuracy of indices in other asset classes for which there is more complete published data concerning the underlying returns.
Non-investable indices 
Non-investable indices are indicative in nature, and aim to represent the performance of some database of hedge funds using some measure such as mean, median or weighted mean from a hedge fund database. The databases have diverse selection criteria and methods of construction, and no single database captures all funds. This leads to significant differences in reported performance between different indices.
Although they aim to be representative, non-investable indices suffer from a lengthy and largely unavoidable list of biases.
Funds' participation in a database is voluntary, leading to self-selection bias because those funds that choose to report may not be typical of funds as a whole. For example, some do not report because of poor results or because they have already reached their target size and do not wish to raise further money..
The short lifetimes of many hedge funds means that there are many new entrants and many departures each year, which raises the problem of survivorship bias. If we examine only funds that have survived to the present, we will overestimate past returns because many of the worst-performing funds have not survived, and the observed association between fund youth and fund performance suggests that this bias may be substantial.
When a fund is added to a database for the first time, all or part of its historical data is recorded ex-post in the database. It is likely that funds only publish their results when they are favorable, so that the average performances displayed by the funds during their incubation period are inflated. This is known as "instant history bias" or "backfill bias".
Investable indices 
Investable indices are an attempt to reduce these problems by ensuring that the return of the index is available to shareholders. To create an investable index, the index provider selects funds and develops structured products or derivative instruments that deliver the performance of the index. When investors buy these products the index provider makes the investments in the underlying funds, making an investable index similar in some ways to a fund of hedge funds portfolio.
To make the index investable, hedge funds must agree to accept investments on the terms given by the constructor. To make the index liquid, these terms must include provisions for redemptions that some managers may consider too onerous to be acceptable. This means that investable indices do not represent the total universe of hedge funds. Most seriously, they under-represent more successful managers, who typically refuse to accept such investment protocols.
Hedge fund replication 
The most recent addition to the field approach the problem in a different manner. Instead of reflecting the performance of actual hedge funds they take a statistical approach to the analysis of historic hedge fund returns, and use this to construct a model of how hedge fund returns respond to the movements of various investable financial assets. This model is then used to construct an investable portfolio of those assets. This makes the index investable, and in principle they can be as representative as the hedge fund database from which they were constructed.
However, these clone indices rely on a statistical modelling process. Such indices have too short a history to state whether this approach will be considered successful.
Effect of 2007/08 financial crisis 
|This section does not cite any references or sources. (June 2011)|
Hedge funds posted disappointing returns in 2008, but the average hedge fund return of -18.65% (the HFRI Fund Weighted Composite Index return) was far better than the returns generated by most assets other than cash or cash equivalents. The S&P 500 total return was -37.00% in 2008, and that was one of the best performing equity indices in the world. Several equity markets lost more than half their value. Most foreign and domestic corporate debt indices also suffered in 2008, posting losses significantly worse than the average hedge fund. Mutual funds also performed much worse than hedge funds in 2008. According to Lipper, the average US domestic equity mutual fund decreased 37.6% in 2008. The average international equity mutual fund declined 45.8%. The average sector mutual fund dropped 39.7%. The average China mutual fund declined 52.7% and the average Latin America mutual fund plummeted 57.3%. Real estate, both residential and commercial, also suffered significant drops in 2008. In summary, hedge funds outperformed many similarly risky investment options in 2008.
Debates and controversies 
Systemic risk 
Systemic risk refers to the risk of instability across the entire financial system, as opposed to within a single company. Such risk may arise following a destabilizing event or events affecting a group of financial institutions linked through investment activity. Organizations such as the National Bureau of Economic Research and the European Central Bank have charged that hedge funds pose systemic risks to the financial sector, and following the failure of hedge fund Long-Term Capital Management (LTCM) in 1998 there was widespread concern about the potential for systemic risk if a hedge fund failure led to the failure of its counterparties. (As it happens, no financial assistance was provided to LTCM by the US Federal Reserve, so there was no direct cost to US taxpayers, but a large bailout had to be mounted by a number of financial institutions.)
However, these claims are widely disputed by the financial industry. Financial writer Sebastian Mallaby has said that hedge funds tend to be "small enough to fail", since most are relatively small in terms of the assets they manage, and they usually operate with low leverage, thereby limiting the potential harm to the economic system should one of them fail. Hedge funds fail regularly, and numerous hedge funds failed during the financial crisis. In testimony to the House Financial Services Committee in 2009, Ben Bernanke, the Federal Reserve Board Chairman said he "would not think that any hedge fund or private equity fund would become a systemically-critical firm individually".
Nevertheless, although hedge funds go to great lengths to reduce the ratio of risk to reward, inevitably a number of risks remain. Systemic risk is increased in a crisis if there is "herd" behaviour, which causes a number of similar hedge funds to make losses in similar trades. The extensive use of leverage (loans to amplify gains) can lead to forced liquidations in a crisis, which can be exacerbated by the illiquid nature of some investments. The close interconnectedness of the hedge funds with their prime brokers, typically investment banks, can lead to domino effects in a crisis, and indeed failing counterparty banks can freeze hedge funds. The large sums of money involved – globally, well over a trillion US dollars, and amplified by leverage – add to all these risks.
In October 2009, the UK Financial Services Authority (FSA) commenced six-monthly surveys of the risks posed by hedge funds and their counterparties. The July 2011 survey looked at market dislocation risks and counterparty risks caused by losses for a broad spread of more than 100 funds managed by about 50 managers, with total assets of about US$ 390billion, amounting to about 20% of global hedge fund assets under management. It concluded that risks were limited and had reduced as a result inter alia of larger margins being required by counterparty banks, but might change rapidly according to market conditions. In stressed market conditions, investors might suddenly withdraw large sums, resulting in forced asset sales. This might cause liquidity and pricing problems if it occurred across a number of funds or in one large highly leveraged fund.
As private, lightly regulated entities, hedge funds are not obliged to disclose their activities to third parties. This is in contrast to a regulated mutual fund (or unit trust), which will typically have to meet regulatory requirements for disclosure. An investor in a hedge fund usually has direct access to the investment advisor of the fund, and may enjoy more personalized reporting than investors in retail investment funds. This may include detailed discussions of risks assumed and significant positions. However, this high level of disclosure is not available to non-investors, contributing to hedge funds' reputation for secrecy, while some hedge funds have very limited transparency even to investors.
Funds may choose to report some information in the interest of recruiting additional investors. Much of the data available in consolidated databases is self-reported and unverified. A study was done on two major databases containing hedge fund data. The study noted that 465 common funds had significant differences in reported information (e.g. returns, inception date, net assets value, incentive fee, management fee, investment styles, etc.) and that 5% of return numbers and 5% of NAV numbers were dramatically different. With these limitations, investors have to do their own research, which may cost on the scale of US$50,000.
Some hedge funds, mainly American, do not use third parties either as the custodian of their assets or as their administrator (who will calculate the NAV of the fund). This can lead to conflicts of interest, and in extreme cases can assist fraud. In a recent example, Kirk Wright of International Management Associates has been accused of mail fraud and other securities violations which allegedly defrauded clients of close to US$180 million. In December 2008, Bernard Madoff was arrested for running a US$50 billion Ponzi scheme which was thought to be a hedge fund, and several feeder hedge funds, of which the largest was Fairfield Sentry, channelled money to it.
Links with analysts 
In June 2006, prompted by a letter from Gary J. Aguirre, the Senate Judiciary Committee began an investigation into the links between hedge funds and independent analysts. Aguirre was fired from his job with the SEC when, as lead investigator of insider trading allegations against Pequot Capital Management, he tried to interview John Mack, then being considered for chief executive officer at Morgan Stanley. The Judiciary Committee and the US Senate Finance Committee issued a scathing report in 2007, which found that Aguirre had been illegally fired in reprisal for his pursuit of Mack and in 2009, the SEC was forced to re-open its case against Pequot. Pequot settled with the SEC for US$28 million and Arthur J. Samberg, chief investment officer of Pequot, was barred from working as an investment advisor. Pequot closed its doors under the pressure of investigations.
The systemic practice of hedge funds submitting periodic electronic questionnaires to stock analysts as a part of market research was reported in by The New York Times in July 2012. According to the report, one motivation for the questionnaires was to obtain subjective information not available to the public and possible early notice of trading recommendations that could produce short term market movements.
Overvaluing assets 
In October 2012, the U.S. Securities and Exchange Commission charged a New Jersey hedge fund, Yorkville Advisors LLC, developers of the Standby Equity Distribution Agreement and two of its directors with fraud, by scheming to overvalue assets.
Value in mean/variance efficient portfolios 
According to modern portfolio theory, rational investors will seek to hold portfolios that are mean/variance efficient (that is, portfolios offer the highest level of return per unit of risk, and the lowest level of risk per unit of return). One of the attractive features of hedge funds (in particular market neutral and similar funds) is that they sometimes have a modest correlation with traditional assets such as equities. This means that hedge funds have a potentially quite valuable role in investment portfolios as diversifiers, reducing overall portfolio risk.
However, there are three reasons why one might not wish to allocate a high proportion of assets into hedge funds. These reasons are:
- Hedge funds are highly individual and it is hard to estimate the likely returns or risks;
- Hedge funds' low correlation with other assets tends to dissipate during stressful market events, making them much less useful for diversification than they may appear; and
- Hedge fund returns are reduced considerably by the high fee structures that are typically charged.
Several studies have suggested that hedge funds are sufficiently diversifying to merit inclusion in investor portfolios, but this is disputed for example by Mark Kritzman who performed a mean-variance optimization calculation on an opportunity set that consisted of a stock index fund, a bond index fund, and ten hypothetical hedge funds. The optimizer found that a mean-variance efficient portfolio did not contain any allocation to hedge funds, largely because of the impact of performance fees. To demonstrate this, Kritzman repeated the optimization using an assumption that the hedge funds incurred no performance fees. The result from this second optimization was an allocation of 74% to hedge funds.
The other factor reducing the attractiveness of hedge funds in a diversified portfolio is that they tend to under-perform during equity bear markets, just when an investor needs part of their portfolio to add value. For example, in January–September 2008, the Credit Suisse/Tremont Hedge Fund Index was down 9.87%. According to the same index series, even "dedicated short bias" funds had a return of −6.08% during September 2008. In other words, even though low average correlations may appear to make hedge funds attractive this may not work in turbulent period, for example around the collapse of Lehman Brothers in September 2008.
Notable hedge fund firms 
A list of notable hedge fund firms:
- Amaranth Advisors
- Bridgewater Associates
- Brevan Howard
- GLG Partners
- JPMorgan Chase & Co.
- Long-Term Capital Management
- Man Investments
- Marshall Wace
- Och-Ziff Capital Management
- Paulson & Co.
- Renaissance Technologies
- Soros Fund Management
- The Children's Investment Fund Management (TCI)
- Quant First Alternate Investment Trust (QF)
See also 
- Vulture fund
- Steven A. Cohen
- Carl Icahn
- Investment banking
- List of hedge funds
- Stock broking
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Further reading 
- Frank S. Partnoy & Randall S. Thomas, 'Gap Filling, Hedge Funds, and Financial Innovation' (2006) Vanderbilt Law & Econ. Research Paper No. 06-21
- Marcel Kahan & Edward B. Rock, 'Hedge Funds in Corporate Governance and Corporate Control' (2007) 155 University of Pennsylvania Law Review 1021
- Makrem Boumlouka, 'Regulation and Transparency in US OTC Derivative Markets', Original Thoughts Series #1, August 2010, Hedge Fund Society Hedge Fund Society
- Nicole M. Boyson, Christof W. Stahel, and Rene M. Stulz, 2010, "Hedge Fund Contagion and Liquidity Shocks", The Journal of Finance, 65: 1789–1816
- Emory Center for Alternative Investments
- David Stowell (2010). An Introduction to Investment Banks, Hedge Funds, and Private Equity: The New Paradigm. Academic Press.