In hedge fund manager William Ackman's first comments since January on his $1 billion bet against nutritional supplement company Herbalife, he told CNBC, "I haven't covered a single share."
Ackman wouldn't comment beyond that Tuesday evening, but he put out a press release earlier in the day laying out his concerns about the better-than-expected earnings that Herbalife released on Monday.
GAAP operating income at Herbalife grew by 3 percent, Ackman wrote, while revenue increased 18 percent. "Why is the company's operating earnings growth so weak?" he asked in the release. "Is the company 'buying' revenue growth at the expense of operating income?"
On Monday, Herbalife also raised its full-year guidance. The stock has increased about 60 percent since Ackman's Dec. 20, 2012, presentation in which he called the company a pyramid scheme—an accusation Herbalife has vehemently denied.
(Read more: Ackman questions Herbalife's income growth)
While the Wall Street's knee-jerk reaction to Herbalife's earnings this week was to run up the stock by more than 5.5 percent, it ended down by about 50 cents Tuesday.