Billionaire Bill Ackman Just Sold All His Chipotle Stock To Buy This AI Stock Up 1,660% Since Its IPO

Ackman concentrates even more in the "Magnificent Seven."Big-name value investors are few and far between today, but Bill Ackman, founder of hedge fund Pershing Square Holdings (PSHZF 2.01%), remains near the top of the list. As such, those who practice the art and science of value investing would do well to pay attention to his big portfolio moves. After all, Ackman tends to take large, concentrated positions, indicating a high level of conviction.At its recent investor presentation, Ackman revealed Pershi ...