Key Points o o o o UnitedHealth Group stock is down despite the company's double beat in its fourth-quarter earnings. A rise in medical expenses may be obscuring the increase in revenue from the company's Optum division, which uses AI to help improve revenue accuracy and efficiency today and later patient care. UNH stock is approaching a key moving average that has been a reliable buying signal in the last few months. 5 stocks we like better than UnitedHealth Group The big banks will get the headlines, but ...