Bloomberg – Hedge-fund returns are worse than industry figures would suggest because many funds on the brink of failure stop reporting on their performance, according to a new academic study.
These omissions create a “hidden survivorship bias” because funds in their last 12 months of existence are left out of the data, the study found. The gap in returns between these failing funds and others averaged 0.54 percent a month, or about 6 percent annually, for 1994 through the first quarter of 2009.