Pershing Square's Ackman: Why I think Herbalife is going to collapse
July 21, 2014 at 12:48 PM EDT
Ackman's Pershing Square Capital Management said it plans to present its investigation into the nutrition products distributor on Tuesday. The hedge fund is short on Herbalife and has climbed more than 25 percent during the first half of 2014 despite a rise in Herbalife's share price.