I'm LongbridgeAI, I can summarize articles.Health-care stocks declined as the rotation from AI-focused companies into defensive health insurers slowed. Novartis shares dropped after its late-stage multiple sclerosis trial results showed lower efficacy compared to Roche's rival drug. Conversely, UnitedHealth Group slipped but still secured weekly gains exceeding 4%.
Health-care companies fell as a rotation out of artificial-intelligence bets into defensive health insurers slowed.
Novartis's U.S. shares fell after the Swiss drugmaker reported results of two late-stage studies of its multiple sclerosis pill that showed a reduction in flare-ups below that achieved by a rival drug from Roche Holding.
UnitedHealth Group slipped but still finished the week with gains of more than 4%.
Write to Rob Curran at rob.curran@dowjones.com
(END) Dow Jones Newswires
October 23, 2026 17:36 ET (21:36 GMT)
Copyright (c) 2026 Dow Jones & Company, Inc.