Merck (MRK) stock slips at the close, then steadies after hours as year-end trading thins
NEW YORK, December 30, 2025, 19:42 ET — After-hours Merck & Company, Inc. (MRK) shares fell 0.53% to $106.06 at the close on Tuesday and were up about 0.1% in after-hours trading at $106.17. The stock has traded between $73.31 and $107.59 over the past 52 weeks. Investing.com The muted move matters now because liquidity typically thins into year-end, which can exaggerate small price swings even in defensive healthcare names. Merck has scheduled its fourth-quarter earnings call for Feb. 3, putting its 2026 outlook in focus as investors reset positions for the new year. Merck.com Wall Street’s main indexes closed