Top Stock Movers – August 15, 2025

UnitedHealth Group (UNH) led gains in both the Dow and S&P 500 after Warren Buffett’s Berkshire Hathaway disclosed a new 5 million-share position in the insurer, worth roughly $1.6 billion at the end of Q2. The “Buffett bump” rippled across the sector, boosting shares of Molina Healthcare (MOH) and Centene (CNC).
Salesforce (CRM) climbed after an upgrade from D.A. Davidson, which cited growing involvement from activist investor Starboard Value. Intel (INTC) advanced on reports the Trump administration may take an equity stake in the struggling chipmaker.
On the downside, Applied Materials (AMAT) sank after issuing a weaker-than-expected outlook, citing macroeconomic and tariff-related headwinds particularly in China. Sandisk (SNDK) fell as well, warning of higher startup costs and delivering profit guidance below forecasts.
Hims & Hers Health (HIMS) shares slid on word that the Federal Trade Commission is investigating its business practices.
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