NEW YORK, December 31, 2025, 17:12 ET — After-hours
- UnitedHealth ended lower in late trade as U.S. health-care stocks also slipped.
- Minnesota’s DHS is routing certain Medicaid claims through Optum for extra checks before payment.
- Focus now shifts to UnitedHealth’s next results and 2026 outlook in late January.
UnitedHealth Group Inc shares were down $2.03, or 0.6%, at $330.11 in after-hours trading on Wednesday, after moving between $329.46 and $333.24 in the regular session. About 4.2 million shares changed hands.
The pullback matters because investors are entering 2026 focused on two levers that can swing health-insurer earnings quickly: medical-cost trends and the pace of regulatory scrutiny tied to government-funded programs.
UnitedHealth has been a bellwether for managed care. When sentiment shifts on Medicare and Medicaid oversight, the stock often trades less on day-to-day news and more on expectations for the next guidance reset.
The broader tape leaned risk-off into the close. The Health Care Select Sector SPDR Fund fell about 0.6% on the day and the SPDR S&P 500 ETF slid about 0.7%.
In Minnesota, the Department of Human Services has launched a pre-payment review process for fee-for-service Medicaid claims in 14 benefits and services it has identified as “high-risk,” with Optum overseeing the review. Pre-payment review means claims are vetted before money goes out, rather than being audited after payment. mn.gov // Minnesota’s State Portal
At a Monday media briefing, state Medicaid director John Connolly said the first claim cycle ended December 25 and that about 80,000 claims were sent to Optum for review, with the process expected to repeat roughly every two weeks. He said preliminary information was expected later this week.
For investors, the immediate financial impact is hard to size from the outside. The bigger signal is that states are tightening controls around Medicaid spending, a reminder that administrative changes can ripple through payment timing and compliance costs for firms that touch government health programs.
That backdrop adds to a separate cleanup effort underway inside UnitedHealth. In a letter disclosed earlier this month after external audits of its Optum units, CEO Stephen Hemsley said several action plans had already been completed and that “more than half will be finalized by the end of this year.” Reuters
UnitedHealth runs its insurance business under UnitedHealthcare and its services and analytics platform under Optum, which includes care delivery and a pharmacy benefit manager. Those operations make the company more diversified, but they also widen its exposure to policy shifts.
Traders are now looking ahead to the next catalyst: UnitedHealth said it will release full-year 2025 results and provide 2026 financial guidance on Tuesday, Jan. 27, before the market opens, with an 8 a.m. ET conference call.
When that guidance arrives, investors typically zero in on the medical care ratio — the share of premium revenue spent on medical claims — because it’s a quick read on whether costs are running hot or normalizing. Medicare Advantage, the privately run version of Medicare, is especially sensitive to shifts in reimbursement and utilization.
U.S. equity markets will be closed on Jan. 1 for New Year’s Day and reopen on Jan. 2. Until UnitedHealth reports, investors are likely to keep trading the stock off the same themes: the pace of medical-cost normalization and any fresh policy or enforcement headlines tied to government health programs.
