UnitedHealth Group reported $6 billion in third quarter earnings that helped overcome costs of a cyberattack earlier this year.

UnitedHealth Group kicked off another round of earnings calls for major health insurance companies Tuesday morning, when it

UnitedHealth’s stock was having its worst day in more than four years on Tuesday, after the healthcare giant beat third-quarter profit and revenue expectations but missed on medical-care profitability and lowered its full-year outlook.

UnitedHealth Group's third-quarter medical costs exceeded Wall Street estimates on Tuesday, as the insurer paid out more due to persistently high demand for healthcare services and received lower reimbursements on government-backed insurance plans.