Bill Ackman has amassed a roughly $2.3 billion stake in Uber, saying in a post on X that the ride-hailing company's stock is undervalued. Ackman said Friday in the post that his Pershing Square ...

Bill Ackman, the legendary billionaire hedge fund manager over at Pershing Square Capital Holdings, has a new position, and it's caused quite the bullish crowd to come herding over. Undoubtedly, if ...