U.S. health insurance companies experienced a rise in pre-market trading after UnitedHealth Group (UNH.N) reported first-quarter profits that exceeded expectations. According to Jin10, CVS Health shares increased by 3.3%, Elevance Health saw a 3.2% rise, Cigna's stock went up by 1.3%, Humana gained 2.9%, and Molina Healthcare rose by 3%. The positive earnings report from UnitedHealth appears to have bolstered investor confidence across the sector.