The February 2012 issue of Bloomberg Markets magazine has the annual rankings of the world's richest hedge funds. The list of 100 comprise the list of best-performing hedge funds managing $1 billion or more. The rankings are based on data compiled by Bloomberg specialist Anibal Arrascue and information supplied by hedge-fund research firms, hedge funds and investors. Assets and returns are for the 10 months ended on October 31, 2012. Here's a look at the top 5 funds: