Bill Ackman Says He's Shorting Herbalife's Stock

Dec. 20 (Bloomberg) -- Herbalife, the maker of namesake nutritional and weight loss supplements, fell the most in more than seven months after hedge fund manager Bill Ackman said he has taken a short position on the company. Monitor 13D President Kenneth Squire speaks with Bloomberg's Erik Schatzker on Bloomberg Television's "Market Makers." (Source: Bloomberg)