Merck Stock (MRK) Before the Bell on December 8, 2025: Keytruda Setback, $8B Bond Deal and What Investors Should Watch
As Wall Street gears up for the opening bell on Monday, December 8, 2025, Merck & Co., Inc. (NYSE: MRK) enters the week at a pivotal moment. The Dow component has rallied hard in recent months, but now faces a