UnitedHealth(US:UNH) The Motley Fool·2025-06-10 23:11Core Insights - UnitedHealth Group's shares fell 26.6% in May, contrasting with gains in the S&P 500 and Nasdaq Composite, indicating significant investor concern amid ongoing issues [1] - The resignation of CEO Andrew Witty due to "personal reasons" raised alarms about the company's internal challenges and led to the suspension of guidance for 2025 due to rising medical costs [2] - The company is under investigation by the DOJ for Medicare fraud, with a criminal investigation reportedly ongoing for a year [3] - Allegations surfaced regarding UnitedHealth making secret bonus payments to nursing homes to prevent hospital admissions, raising ethical concerns about patient care [5] - A former executive highlighted that profitability is often gained by denying care, reflecting a troubling culture within the company [6] - Investor confidence has been severely shaken, leading to one of the most significant drops for an S&P 100 company since Netflix's decline in May 2022 [6] - The company currently faces numerous challenges with no clear turnaround strategy in sight, making it a risky investment [7]