Humana sees 20% of its members in high-rated Medicare plans

Humana disclosed preliminary 2026 Medicare Advantage star ratings, revealing 20% of its members are in plans rated 4 stars and above, with an average rating of 3.61. Significantly, 14% of members are now in 4.5-star plans for 2026, an increase from 3% in 2025, which drove a 3% surge in the company's shares. This early, inadvertently released data suggests a stable to improving quality profile for a segment of its MA portfolio, potentially impacting future CMS bonus payments and enrollment.

Analysis

Humana's share price increased by 3% following the inadvertent release of preliminary 2026 Medicare Advantage (MA) star ratings, which indicate a notable improvement in the quality mix of its plans. While the overall average star rating of 3.61 is consistent with the prior year, the key driver for the positive sentiment is the significant shift of members into higher-rated plans. Specifically, the percentage of members enrolled in 4.5-star plans is projected to surge from 3% in 2025 to 14% in 2026. Although only 20% of its total members are currently in plans rated 4 stars or higher based on this partial data, this improvement in the highest tier is a crucial positive indicator. Higher star ratings are directly linked to increased CMS quality bonus payments and are a primary factor for beneficiary enrollment and retention, suggesting a potential positive impact on Humana's future revenue and market share.

Key Decisions for Investors

• Investors should view the substantial increase in members within 4.5-star plans as a positive leading indicator for potential future revenue growth, driven by higher CMS bonus payments and enhanced competitiveness in attracting new enrollees.
• It is prudent to monitor for the official and complete CMS star ratings release to validate these preliminary numbers and to assess the performance of the remaining 80% of Humana's MA membership, as this partial data represents a significant but incomplete picture.
• Consider the 3% stock increase as a rational market reaction to improved fundamentals, but weigh this against the fact that the overall average rating remains flat, suggesting that relative performance against competitors will be critical once industry-wide data is available.