Health-care companies rose as traders continued to rotate out of high-momentum semiconductor and artificial-intelligence stocks into 2026 laggards.

UnitedHealth Group, the largest U.S. health insurer, is now up by roughly 60% from its 2025 lows.

Higher risk health-care stocks were under more selling pressure.

The iShares Biotechnology exchange-traded fund fell by 1.7%.

Write to Rob Curran at rob.curran@dowjones.com