UnitedHealth Group Incorporated (NYSE:UNH – Get Free Report) shares traded up 1.4% during mid-day trading on Thursday . The stock traded as high as $525.50 and last traded at $524.99. 1,026,096 shares changed hands during trading, a decline of 76% from the average session volume of 4,239,190 shares. The stock had previously closed at $517.55. […]