Thermo Fisher stock slips again after the bell — here’s what traders are watching next for TMO
New York, Jan 8, 2026, 19:50 EST — After-hours Thermo Fisher Scientific Inc (NYSE: TMO) shares barely budged in after-hours trading — the stretch after the 4 p.m. close — despite a 1.7% dip in Thursday’s regular session that ended at $606.50. During the day, shares swung between $604 and $623.20, with trading volume swelling past 3 million shares, nearly double the 50-day average. Just two days before, on Tuesday, the stock had hit a 52-week high of $628.08. MarketWatch The move matters now as Thermo Fisher stock nears a series of upcoming events following fresh highs, with trading volume