UnitedHealth, Foot Locker, Super Micro, CoreWeave, Cisco, Walmart, and More Market Movers - Barron's
1. UNH shares fell 4.8% amid Medicare fraud investigation news. 2. The Justice Department's probe focuses on Medicare Advantage practices. 3. The investigation has been active since last summer. 4. Investor sentiment may be negatively impacted by potential regulatory issues. 5. Continued scrutiny can affect UNH's business and stock performance.