“I believe the available market is smaller than the bulls believe it to be and that Green Mountain has already penetrated a good chunk of it,” Einhorn, president of Greenlight Capital Inc., said today during his so-called “GAAP-uccino” presentation at the Value Investing Congress in New York. “The market is limited,” he said. The company also has a “litany of accounting questions,” Einhorn said, adding that it has reduced transparency and needs to improve disclosure. [BBW]