Billionaire family offices increased semiconductor holdings in first quarter

Private investment firms tied to several billionaires increased their holdings in semiconductor companies during the first quarter of 2026, according to securities filings analyzed by CNBC. 5 million, making the chipmaker its second-largest holding. 6 million and added a new $179 million position in Sandisk.

Soros Fund Management raised its Nvidia stake by 61 percent to $187 million. Appaloosa trimmed its Nvidia position by 13 percent but retained a $257 million holding. Duquesne exited positions in Entegris and ON Semiconductor.

Billionaire family offices took different approaches to energy stocks. Appaloosa more than doubled its Vistra Corp stake to $304 million. BlueCrest Capital Management exited its $103 million position in the Texas-based electricity firm. Duquesne reduced its Bloom Energy stake by 82 percent to $89 million while increasing its YPF Sociedad position more than fivefold to $150 million.

Appaloosa sold its stakes in American Airlines, Delta Air Lines, and United Airlines. Duquesne also exited its Delta position.