A hedge fund is an investment fund open to a limited range of investors that is permitted by regulators to undertake a wider range of investment and trading activities than other investment funds and pays a performance fee to its investment manager. Each fund has its own strategy which determines the type of investments and the methods of investment it undertakes. Hedge funds, as a class, invest in a broad range of investments including shares, debt, commodities and so forth.

As the name implies, hedge funds often seek to offset potential losses in the principal markets they invest in by hedging their investments using a variety of methods, most notably short selling. However, the term "hedge fund" has come to be applied to many funds that do not actually hedge their investments, and in particular to funds using short selling and other "hedging" methods to increase rather than reduce risk, with the expectation of increasing return.

Hedge funds are typically open only to a limited range of professional or wealthy investors. This provides them with an exemption in many jurisdictions from regulations governing short selling, derivative contracts, leverage, fee structures and the liquidity of interests in the fund. A hedge fund will typically commit itself to a particular investment strategy, investment types and leverage levels via statements in its offering documentation, thereby giving investors some indication of the nature of the fund.

The net asset value of a hedge fund can run into many billions of dollars, and this will usually be multiplied by leverage. Hedge funds dominate certain specialty markets such as trading within derivatives with high-yield ratings and distressed debt.

History

Sociologist, author, and financial journalist Alfred W. Jones is credited with the creation of the first hedge fund in 1949.AIMA Roadmap to Hedge Funds Jones believed that price movements of an individual asset could be seen as having a component due to the overall market and a component due to the performance of the asset itself. To neutralize the effect of overall market movement, he balanced his portfolio by buying assets whose price he expected to be stronger than the market and selling short assets he expected to be weaker than the market. He saw that price movements due to the overall market would be cancelled out, because if the overall market rose, the loss on shorted assets would be cancelled by the additional gain on assets bought and vice-versa. Because the effect is to 'hedge' that part of the risk due to overall market movements, this became known as a hedge fund.

Industry size

Estimates of industry size vary widely due to the lack of central statistics; the lack of a single definition of hedge funds; and the rapid growth of the industry. As a general indicator of scale, the industry may have managed around $2.5 trillion at its peak in the summer of 2008. The credit crunch has caused assets under management (AUM) to fall sharply through a combination of trading losses and the withdrawal of assets from funds by investors.