UnitedHealth Group

UnitedHealth Group sells health insurance plans through UnitedHealthcare. This includes Medicare Advantage plans for older adults, and group health plans for employers. Optum, the company's other segment, runs pharmacy benefit management, physician clinics, and health data services. The company earns money mainly from insurance premiums, and from fees for Optum's services.

UnitedHealth's 2025 cost spike, mainly in Medicare Advantage, forced a guidance withdrawal and a CEO change. It left the market pricing the stock as though the business is still troubled. In the second quarter of 2026, the medical care ratio fell to 86.7% from 89.4% a year earlier, and management raised its 2026 guidance. But $860 million of favorable reserve changes from earlier periods helped that quarter.

The case for a re-rating rests on the ratio staying low without such help. It also rests on the outcome of the Department of Justice's investigation into Medicare Advantage billing. A large fine or a forced change to risk-coding practices would cut future revenue. A resolution with limited financial impact would remove a source of negative attention that has weighed on the stock since 2025.

New management is also bringing partners into weak clinic businesses, such as a partnership with TPG for Florida clinics that became public in September 2026. On October 1, 2026, it removed about 1,700 prior-authorization codes, which it calls about 30% of its requirements. For 2027, it also ends Medicare Advantage plans with about 390,000 members, to leave less profitable markets. These steps are meant to show the business model still works without the practices under scrutiny.

The next Q3 2026 results, due October 13, 2026, will show whether the medical care ratio keeps improving into the back half of the year. If it does, and the DOJ matter resolves without a severe penalty, the discount can close over the next two to four quarters. If a large fine or forced billing changes arrive instead, the market's caution would prove correct, and the stock could stay discounted well into 2027.

1. Oct 13, 2026Overdue by 1 day

   Q3 2026 results: medical care ratio trendA medical care ratio below the year-earlier 89.9% and in line with the full-year guide of about 88.1%, without large favorable reserve changes, and confirmed or raised guidance pass; a ratio above the guide or a guidance cut fails.
2. Jan 2027 · est.Pending

   Full-year 2026 results and first 2027 earnings outlookA 2027 outlook with earnings growth and debt to capital near 40% passes; a flat or lower outlook or new reserve charges fails.
3. 2027 · est.Pending

   Department of Justice Medicare Advantage billing investigation outcomeA settlement with a fine the company can pay from one quarter of cash flow and no forced change to risk coding passes; a large fine or forced coding changes fail.

Every passed and failed checkpoint across all picks

UnitedHealth borrows at the parent holding company, mostly through senior unsecured notes, but most of its cash sits in regulated insurance subsidiaries. These subsidiaries must keep minimum statutory capital and need state approval for large dividends. Read more

• The Department of Justice has criminal and civil investigations into UnitedHealth's Medicare Advantage billing practices, which the company confirmed in July 2025. No settlement or charge was public on October 12, 2026. A January 2026 report from the majority staff of Senator Grassley says that the company used home visits and chart reviews to add diagnoses that increased its government payments. The company disputes the report. A large fine or forced change to these practices could reduce future revenue.
• UnitedHealth's medical cost ratio was elevated through 2025 because new Medicare Advantage members cost more to treat than the company priced for. Government rate-setting and shifts in member mix can still push costs higher than planned in future years. Lower 2027 star ratings can also reduce bonus payments in 2028.
• The killing of UnitedHealthcare CEO Brian Thompson in December 2024 caused public anger at health insurers over claim denials and prior authorization. This raised the risk of new state or federal rules on insurer practices, which could reduce UnitedHealth's margins. In October 2026, the Texas Attorney General started an investigation into denials of care.

• October 8, 2026The government published the 2027 Medicare Advantage star ratings. Analysts at J.P. Morgan and Stephens estimate that the share of UnitedHealth members in plans with 4 stars or more fell to about 67%, from about 78%. The company did not give a figure and said the results agreed with its expectations. Star ratings set bonus payments for 2028.
• October 5, 2026The Texas Attorney General started an investigation into UnitedHealthcare. The investigation looks at denials of care and alleged payments to nursing homes.
• October 2, 2026A UnitedHealthcare spokesperson said that the Medicare Advantage plans it ends for 2027 cover about 390,000 members. It is leaving markets where its plans are less profitable. Affected members can choose another plan from October 15 to December 31, 2026.