Thermo Fisher Scientific (TMO) Stock After the Bell on Dec. 24, 2025: What Happened Today and What to Watch Before the Next Market Open
Thermo Fisher closed at $579.12 on Dec. 24, down 0.14% in a low-volume, holiday-shortened session. Short interest dropped 6.9% to 5.10 million shares, or 1.35% of float. AAII labeled the stock “ultra expensive” in a new valuation screen. U.S. markets reopen Friday, Dec. 26, after the Christmas holiday.