Brevan Howard Asset Management’s main hedge fund gained 0.5 percent in January, according to two people with knowledge of the matter, who asked not to be named because the information is private.

Billionaire founder Alan Howard last week predicted there would be “exceptional" opportunities to make money in 2016 as volatile global markets wiped out $5.9 trillion from equity markets during the month. His flagship fund ended 2015 down 2 percent, its second successive annual decline, a person familiar with the matter said in January. 

Daniel Jason, a spokesman for Brevan Howard, declined to comment on the fund’s performance.

The master fund managed about $19 billion at the end of last year, down from $23.7 billion a year before, according to investor letters. Howard co-founded Brevan Howard in 2002 with colleagues from Credit Suisse Group AG. Its assets peaked at $40 billion in 2013, the year before the firm’s main fund posted its first annual loss.

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