Merck (MRK) Rallies on Nov. 11, 2025: FDA Approves New Keytruda Companion Diagnostic; Fresh SITC Combo Data, and Dow Momentum
Published: November 11, 2025 At a glance (today) Market move: MRK helps lead the Dow’s advance By early afternoon Tuesday, Merck & Co. (NYSE: MRK) shares were up about 3.9%, helping lead the Dow Jones Industrial Average higher; Nike and