Medicare Advantage Rates Pressure Insurer Stocks

Medicare Advantage rates for the 2027 plan year were proposed as nearly flat by the Centers for Medicare & Medicaid Services on Jan. 26, 2026. Reports of the decision coincided with sharp share declines among major health insurers after analysts had expected larger increases.

CMS Proposal and Market Impact

The Centers for Medicare & Medicaid Services proposed an average increase of 0.09% in Medicare Advantage payment rates for 2027, covering both Medicare Advantage and Part D payment rules. The proposal estimates an additional $700 in Medicare Advantage benchmark funding for the plan year. It also includes updates to risk adjustment coding, which would further restrict illness coding for enrollees. The rule was issued under the Trump administration, with Mehmet Oz leading CMS.

Following the announcement, health insurer stocks including Humana, CVS Health, and UnitedHealth Group fell in extended trading. Wall Street analysts had expected a 4–6% average increase, creating a significant gap between those forecasts and the agency’s figure. Industry participants noted that recent Medicare Advantage changes have already pressured profit margins, and the proposed tightening of risk adjustment coding is likely to draw criticism. This mismatch increases near-term pressure on profitability and could prompt revisions to 2027 earnings forecasts and capital plans.

Early reports flagged the near-flat Medicare Advantage rate proposal on Jan. 26 at 4:04 p.m. ET. By 5:23 p.m. ET, follow-up coverage linked the proposal to share declines in extended trading. Subsequent reports on Jan. 27 reiterated the figure and compared it with analysts’ prior models.

The gap between the proposed figure and analyst expectations, combined with tighter coding rules, heightens near-term margin pressure and raises the likelihood of earnings-model revisions for 2027.