Amid a government probe on insider trading that threatens potential criminal charges against founder Steve Cohen, SAC Capital is fighting battles on many fronts, including the markets.
The firm's flagship long-short stock fund was up just 70 basis points, or 0.7 percent, last month, said people familiar with the matter. That means it underperformed both the broader market and was essentially in line with other hedge funds.
For the year through May, SAC is up about 6 percent—far short of the Standard & Poors Index, which is up 14 percent, and a bit better than the average hedge fund, which has seen a rise of about 5 percent.