David Tepper boosts stake in South Korea ETF and Micron, betting on AI-driven memory chip demand.

David Tepper increased his holdings in the iShares MSCI South Korea ETF (EWY) and Micron Technology during Q1 2026, reflecting a strategic bet on memory chips critical for AI development. EWY is heavily concentrated in South Korean memory chip giants Samsung Electronics and SK Hynix, making it effectively a memory sector play wrapped in a country ETF. Both Micron and these Korean firms supply high-demand memory products to AI data centers, notably for companies like NVIDIA. While EWY offers exposure to Korean market and currency risks, Tepper's move highlights the strong growth and strategic importance of memory chips in AI, though investors should be aware of the cyclical nature of the memory market and overlapping risks in such investments.