$UnitedHealth(UNH)$ UnitedHealth Group (NYSE: UNH) has experienced significant stock volatility in 2025, driven by multiple challenges. The company faces intensified regulatory scrutiny, with the Centers for Medicare and Medicaid Services expanding audits on Medicare Advantage plans, leading to a 7.5% stock decline over two days. Additionally, a Department of Justice investigation into alleged Medicare fraud and a massive cyberattack on its subsidiary, Change Healthcare, have compounded investor concerns. The unexpected death of UnitedHealthcare CEO Brian Thompson further unsettled the company. Despite these setbacks, some analysts view the depressed stock price as a potential buying opportunity, citing historical patterns of recovery i