Hedge funds have reported investment gains in August after a three-month run of losses, according to index providers.

Hennessee Group, an adviser to investors in hedge funds, said its overall hedge fund index had risen 1.21% in August. The Barclay Group, which publishes hedge fund indexes, said its overall index was up 0.97% in the month. Index provider Dow Jones said each of its six hedge fund indexes, which cover different strategies, was up in August.