And the saga continues. Remember last month when investors Bill Ackman and Carl Icahn got into it on CNBC’s “Fast Money Halftime Report” over Ackman’s short position on Herbalife? It’s hard to forget. Icahn accused Ackman of lying in order to destroy the company—and that was the friendly part of the segment.

Well now Icahn has put his money where his mouth is, apparently investing $214 million into the nutritional supplement company Ackman called a pyramid scheme. According to documents filed with the Securities and Exchange Commission Thursday, Icahn purchased more than 14 million shares and options in Herbalife—a 13 percent stake in the company that makes him the firm’s second-largest investor.

It’s no wonder Icahn was so offended when Ackman shorted the stock. You had to know something was up for him to call Ackman a “little Jewish boy crying that the world is taking advantage of him.” And don’t forget, the on-air tiff saw Herbalife shares surge as much as $2.15 during the half-hour spectacle, so perhaps Icahn knew what he was doing at the time.

But Ackman isn’t ready to cry “uncle” just yet. He told CNBC’s Scott Wapner Friday Morning he is still certain that Herbalife is a pyramid scheme, and his stance on the matter is unaffected by any opponent of his short position. In regard to Icahn’s investment, Ackman said he welcomes it if it shines a light on Herbalife.

Herbalife shares were up nearly 12 percent during Friday morning trading. Will Icahn have the final word? Or will the Herbalife bubble burst leaving Ackman with the last laugh? Let us know your thoughts.

[Image via Flickr/RubyDW]