A surprising Medicare Advantage cost spike helped push UnitedHealth into a rare deep dive Thursday, after the health care giant chopped its 2025 forecast following a worse-than-expected first quarter.
The company's stock price sank by about $130 in its worst one-day performance in over 25 years. Its first-quarter report also rattled other health insurers.
UnitedHealth leaders said care use from people enrolled in its Medicare Advantage plans wound up increasing at twice the rate they had planned for the quarter.
That contributed to an overall performance that was ''frankly unusual and unacceptable,'' CEO Andrew Witty told analysts during a conference call. But he emphasized that this was a temporary, fixable issue.
The unexpected use spike did not extend to the company's other lines of coverage, which include commercial insurance and state-and federally funded Medicaid plans.
UnitedHealth Group Inc. operates the nation's largest health insurer, UnitedHealthcare, which covers more than 50 million people. It also has a large pharmacy benefit manager that runs prescription drug coverage and a growing Optum segment that delivers care and provides technical support.
With more than 8 million customers, UnitedHealthcare is the nation's largest provider of Medicare Advantage plans. Those are privately run versions of the federal government coverage program mostly for people ages 65 and older.
Insurers have struggled to maintain Medicare Advantage profit margins as funding cuts in former President Joe Biden's administration combined with rising care use and costs, said Daniel Barasa, a portfolio manager at Gabelli Funds.