Merck (MRK) Rallies on Nov. 11, 2025: FDA Approves New Keytruda Companion Diagnostic; Fresh SITC Combo Data, and Dow Momentum
By early afternoon Tuesday, Merck & Co. shares were up about 3.9%, helping lead the Dow Jones Industrial Average higher; Nike and Merck together contributed an estimated ~36 points to the index’s ~386‑point climb at that time. MarketWatch