Among the gargantuan hedge funds that make up a majority of the industry’s assets under management, dispersion of returns shot up to notable levels. And for every big winner, like William Ackman’s Pershing Square, there was a big loser to counterbalance it, like John Paulson’s Advantage Fund. Investors choose hedge funds for their “non-correlated returns,” meaning a tendency to move opposite from the general market’s direction. They certainly got such returns this year, unfortunately.