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The term "hedge fund" is loosely defined and does not always imply a hedging technique is being used. Hedge funds today employ all different types of strategies, and the appropriate description could simply be conveyed as “any unregistered, privately-offered, managed pool of capital for wealthy, financially sophisticated investors.”
Hedge funds are usually structured as partnerships, with the general partner being the portfolio manager, making the investment decisions, and the limited partners as the investors. Hedge fund managers attempt to produce targeted returns or absolute performance, regardless of the underlying trends in the financial markets. They implement a wide array of trading strategies, from equity, fixed-income, CTA portfolios, or mathematical algorithms, however they each strive to capture market inefficiencies.(他们主要利用的是market inefficiencies,因为一般如果投资者认可market efficiency theory,他们就会采用passive strategy and indexed ways 来投资
Hedge funds are subject to the same market rules and regulations as any trader. The strategies they utilize are not as easily accessible, especially for other regulated entities, such as mutual funds. (mutual fund一般只允许为了规避风险而使用hedging techniques)To achieve this "absolute return", hedge fund managers have the flexibility to incorporate different strategies and techniques that may include:
Short-selling: Sale of a security that you do not own, with the anticipation of purchasing it in the future, at a reduced cost.
Arbitrage: Simultaneous buying and selling of a financial instrument in different markets to profit from the difference between the prices
Hedging: Buying/selling a security to offset a potential loss on an investment.
Leverage: Borrowing money for investment purposes.
Hedge funds do not afford protection for the investor, which typically applies to most registered investment products. This includes the full set of protections applicable under federal and state securities laws. Simply, you will not get the same disclosure and transparency from a hedge fund than you would from a registered product, like a mutual fund.