Billionaire Michael Platt Just Made a Move that Would Please Warren Buffett

This top investor's latest move could be seen as a vote of confidence in American companies. Billionaire investors have proven their talents over the years by producing big returns for clients and for themselves. For example, in the past year, Stanley Druckenmiller of the Duquesne Family Office sold all of his Nvidia shares -- but in the first quarter of 2025, Chase Coleman of Tiger Global Management added to his Nvidia position.