UnitedHealth Group's first-quarter 2026 results, reported April 21, 2026, showed revenue of $111.7 billion, up 2 percent year over year, and a medical cost ratio of 83.9 percent — about 90 basis points better than the same quarter of 2025, per the company's earnings release. For the largest US insurer, the ratio is the number that decides whether 2026 premiums stay sane.
This is information, not financial or insurance advice. Cost ratios are an industry signal; your own premium renewal is set by your plan's filed rates, not by one quarter.
What is a medical cost ratio?
The medical cost ratio is the share of each premium dollar an insurer pays out in medical claims. An 83.9 percent ratio means roughly 84 cents of every premium dollar went to care. In 2025 the figure ran hotter across the industry — utilization of specialty drugs, joint replacements, and behavioral health outpaced premium growth, compressing insurer margins to levels UnitedHealth described as historically low in its January results.
Related stories: UnitedHealth Closes 2025 With $19.0 Billion in Operating Earnings and a 2.7 Percent Margin · UnitedHealth Raised Its 2026 Forecast as Cost Ratio Cooled to 86.7 Percent.
Why did the ratio improve in Q1 2026?
Per the company's April 21, 2026 release, the 90-basis-point improvement reflected pricing discipline in 2026 plan years and slower growth in certain high-cost categories. Part of the improvement is also mechanical: insurers repriced 2026 products for a smaller, likely sicker marketplace risk pool after the enhanced subsidy expiration, and MA plans cut benefits and exited counties to shed unprofitable membership.
What does that mean for consumers?
A stabilizing cost ratio cuts both ways. It reduces the pressure for steep 2027 premium filings and lowers the odds of another year of benefit trims and plan exits in Medicare Advantage. But it also reflects that many members are now paying more out of pocket for the same care — higher deductibles and coinsurance suppress some utilization that a healthier ratio quietly depends on.
What to watch next
Two checkpoints. The second-quarter report in July will show whether the improvement holds for a half-year or was a favorable start-of-year mix. And in October, 2027 MA bids built on these numbers will reveal whether insurers use the breathing room to add benefits back or to price for margin recovery. Members switching plans this fall should weight the annual notice of change more heavily than the headline premium.
For more context, read UnitedHealth Raised Its 2026 Forecast as Cost Ratio Cooled to 86.7 Percent.
For more context, read unitedhealth group 2025 results.
For more context, read 2027 medicare advantage rate announcement.