Brad Conger, chief investment officer at Hirtle Callaghan, sat down on Barron’s Streetwise with Jack Hough this month with a message every AI investor should hear before clicking buy. ā€œI think there’s just an amazing level of confidence that the winners of AI today will be the winners tomorrow,ā€ he said. The math behind that ... AI Stock Valuations Just Hit a Dangerous Level. A Top CIO Warns: Companies Can’t Grow 100% Annually for 10 Years Straight.