Billionaire David Tepper of Appaloosa Is Overweight AI Stocks -- but He Recently Dumped Every Share of the Hottest AI Stock of 2026

Billionaire David Tepper's Appaloosa fund maintains heavy exposure to AI stocks like Nvidia, Taiwan Semiconductor, and Amazon, which comprise 77% of invested assets. However, Tepper completely exited his position in Sandisk in Q2 2026 after the stock surged over 3,000% in a year, likely taking profits. The move reflects Tepper's strategy of cashing in on cyclical memory stocks when valuations become stretched.