Greenlight Capital gained 7.9 percent in the second quarter, according to a letter sent to investors Friday.
Argentine debt negotiators left their meeting with a U.S. court-appointed mediator in New York after barely one hour.
Hedge fund gains were trumped last year by the equities boom, according to a report published on Tuesday.
Hedge fund manager David Einhorn closed a bet against ailing retailer J.C. Penney in the second quarter.
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Another prominent market bull has joined the growing ranks of Wall Street strategists who think a correction is not far away.
Billionaire money manager John Paulson still thinks buying a home to live in is the best investment possible.
For the first time in recent memory, Main Street borrowing and spending has been a bigger driver of earnings than Wall Street's trading.