Insurance stocks fall after Elevance Health results show margin pressure

Elevance Health's Q2 2026 Health Benefits operating margin collapsed to 3.6% from 5.0% year-over-year, driven by lagging Medicaid reimbursement rates and Medicare Advantage portfolio repositioning, sending shares down 6.7% in premarket despite beating EPS estimates ($7.45 vs $6.21 consensus) and raising full-year guidance. The selloff broadened across the managed-care sector: Molina Healthcare dropped as much as 9%, Centene fell 4.9%, UnitedHealth declined 2.7%, CVS Health fell 2.3%, and Humana dropped 1.7%, as investors braced for similar Medicaid margin pressure at UnitedHealth's own report.

Why it matters: Membership contracted to 44.95 million from 45.42 million the prior quarter, and sell-side analysts project revenue to decline 2.3% over the next 12 months, underscoring that 2026 is shaping up as a trough year for the segment.