Tepper's 1,300% Leap Into UnitedHealth Stock Chaos Looked Crazy—Until It Didn't

David Tepper's bold second-quarter buying spree in UnitedHealth Group Inc. UNH is already paying off. The billionaire hedge fund manager's Appaloosa Management increased its stake in the health insurance giant by a staggering 1,300% last quarter, turning a once-minor position into his fund's second-largest holding.Track UNH stock here.A Contrarian Bet On HealthcareUnitedHealth wasn't just volatile—it was in freefall this spring, shedding more than 60% of its value between mid-April and mid-May as investors ...