Nucor, Warren Buffett and UnitedHealth
Digest more
Berkshire purchases often boost stocks. Shares of the steel maker traded as high as $151.32 on Friday, but closed at $145.48, up 0.8%. The S&P 500 fell 0.3%. The Dow Jones Industrial Average rose 0.1%.
The investment comes as UnitedHealth faces soaring medical costs, federal investigations, the fallout of the killing of a top executive and a cyberattack last year.
UnitedHealth (UNH) stock climbed 6.7% in Thursday afternoon trading after Warren Buffett's Berkshire Hathaway (BRK.B) (BRK.A) disclosed that it acquired a new stake in the health insurer during Q2 2025.
Buffett owned UnitedHealth shares before selling his stake in 2010, though his Berkshire Hathaway recently acquired shares.