UnitedHealth’s stock sinks after CEO steps down, outlook suspended as costs rise - MarketWatch
1. UNH's CEO is stepping down amid rising medical costs and poor outlook. 2. 2025 financial guidance was withdrawn due to accelerating medical expenses. 3. Stock dropped 9.6%, nearing a four-year low, impacting the Dow. 4. Peer companies like CVS and Humana also faced stock declines. 5. UnitedHealth expects to return to growth in 2026.