Billionaire Bill Ackman Recently Bought One of My Favorite Stocks. Here's Why I Think It Was a Brilliant Move.

Bill Ackman is a billionaire nine times over, according to Forbes. He made his vast wealth by running Pershing Square Capital, the hedge fund he founded 20 years ago. He increased his fame (and made a lot of money) during the financial crisis by betting against bond insurer MBIA and rescuing mall operator General Growth Properties. Ackman has a concentrated investment style. His fund typically has 10 holdings or less, and when he finds something he likes, he bets big on it. One stock he recently loaded up o ...