Bill Ackman questioned Carl Icahn’s firm’s valuation, taking another shot at his old rivalry, whose company has been the focus of short-seller Hindenburg Research. In a tweet on Wednesday, the billionaire investor said he was “fascinated” by the situation involving the short seller and Icahn Enterprises (Nasdaq: IEP), noting that the company’s premium had been … Continue reading “Get A Dog”: Bill Ackman’s Rivalry With Carl Icahn Renewed As He Compares IEP With Archegos