Billionaire fund manager, skeptical of AI, backs shocking stock
One of Wall Street's most prominent leaders is making big moves in his AI portfolio.

A highly controversial figure in some circles, Ken Griffin remains one of Wall Street’s most prominent and respected hedge fund managers.
Since founding Miami-based hedge fund Citadel Securities in 1990, Griffin has amassed a net worth of more than $44 billion. This makes him one of the highest-earning people in his field, second only to Israel Englander of Millennium Management.