Merck stock slips as FDA fast-track questions build and earnings near
New York, January 16, 2026, 15:04 EST — Regular session Merck & Co shares (MRK.N) dropped roughly 1.2% to $109.65 on Friday, erasing earlier gains and settling near the session lows. The stock swung between $108.49 and $111.19 during the day, with around 7.6 million shares changing hands by the afternoon. The decline followed weakness in large-cap healthcare, despite the…