Medicare Advantage enrollment expected to fall in 2026 as insurers cut back on unprofitable plans

The Centers for Medicare and Medicaid Services projects a decline in Medicare Advantage enrollment for the first time in nearly two decades in 2025, as health insurers prioritize profitability over growth due to rising medical costs and regulatory pressures. This strategic shift is manifesting in 2026 plans through reduced benefits, higher premiums and deductibles from major carriers, and significant cuts to broker commissions on less profitable offerings, leading to market disruption and increased uncertainty for both insurers and enrollees.

Analysis

The Medicare Advantage (MA) market is facing a significant inflection point, with the Centers for Medicare and Medicaid Services (CMS) projecting the first enrollment decline in nearly two decades for 2025, from nearly 35 million to 34 million. This contraction is a direct result of a strategic pivot by major health insurers, including UnitedHealth Group (UNH), CVS Health (CVS), Elevance (ELV), and Humana (HUM), who are prioritizing margin recovery over membership growth after two years of shrinking profits. The margin pressure stems from higher-than-expected medical costs and new regulations impacting government reimbursement rates. In response, carriers are aggressively restructuring their 2026 plan offerings by reducing benefits, raising premiums and deductibles, and increasing out-of-pocket maximums, particularly for HMO plans, as highlighted by Evercore ISI analysis. A key tactical shift is the widespread de-commissioning of less profitable plans—affecting 15-20% of plans nationally and over 35% in some markets—to steer broker-led enrollment towards more profitable products. This creates significant market disruption and uncertainty, with CMS anticipating a robust rebound in 2026 enrollment, which contrasts with insurers' more cautious projections and actions.

Key Decisions for Investors

• Investors should re-evaluate valuation models for major managed care organizations (UNH, CVS, ELV, HUM), shifting focus from top-line membership growth to margin improvement and profitability metrics for the 2025-2026 period.
• Closely monitor open enrollment data between October 15 and December 7 for early indicators of member retention, plan switching, and the net impact of benefit reductions on market share for each major carrier.
• Recognize the heightened execution risk, as aggressive benefit cuts and the de-commissioning of plans could lead to greater-than-expected enrollment losses or adverse selection, creating potential for share price volatility.
• Assess the downstream impact on insurance distribution channels like eHealth (EHTH), as the significant increase in de-commissioned plans is altering broker compensation and could disrupt traditional enrollment patterns.