English to Greek Bus/Financial Finance (general)

Generally, the more ‘directional’ a fund, the more volatile and higher potential return or loss. Hedge funds may allocate their assets across several strategies at the same time. Although returns may vary significantly in different years, hedge funds have outperformed both the Average Equity Mutual Fund Index and S&P 500 over the past 16 years. There is however a survivorship bias, whereby published results for hedge funds do not include the returns of hedge funds that no longer exist. The proportion of closed hedge funds averaged around 5% a year between 1999 and 2004.