Bill Ackman, the guru investor who placed a $1 billion short on Herbalife. It has been estimated that he has lost upwards of $500 million hold this position, until today. Shares of Herbalife are down due to news that the Federal Trade Commission is investigating the company. With shares down $6 Ackman has made back $72 million on his bet. Ackman has always held a stance that Herbalife was a company operating as a pyramid scheme, so it was no surprise to him when he found out the FTC was probing the multi-level marketing company that sells nutritional products.