Billionaire Family Offices Boost Chip Stocks 11%-61% in Q1, Split on Energy Bets

According to regulatory filings reported by Jin10, billionaire family offices increased positions in semiconductor stocks during the first quarter ended March 31, 2026. Appaloosa Management, led by David Tepper, raised Micron Technology (MU) holdings by 11% to become its second-largest position, increased Taiwan Semiconductor Manufacturing Company (TSM) by 18% to $448.6 million, and established a new $790 million stake in SanDisk (SNDK). Stanley Druckenmiller's Duquesne Family Office disclosed a new $24 million SanDisk position and a $161 million Broadcom (AVGO) holding. Soros Fund Management increased NVIDIA (NVDA) by 61% to $187 million.

On energy stocks, family offices adopted divergent strategies. Appaloosa more than doubled its Vistra Corp position to $304 million, while Michael Platt's BlueCrest Capital Management exited its $103 million Vistra holding. Duquesne locked in gains by closing positions in Entegris and ON Semiconductor.