Thermo Fisher Scientific Inc. (TMO) closed at $673.88 on October 24, 2026, marking a decline of 0.40% over the prior 24 hours. The life sciences and laboratory equipment giant carries a market capitalization of $250.15 billion.
Over the past seven days, TMO has shed 2.38%, reflecting a stretch of selling pressure that has weighed on the stock through the week. The pullback places the shares in negative territory on a near-term basis despite the broader one-month picture showing improvement.
Looking back over the past 30 days, TMO has gained 1.26%, suggesting the recent weakness represents a partial retreat from earlier monthly advances rather than a sustained downtrend. The stock's price action over that window indicates underlying support has kept losses contained.
At its current level of $673.88, Thermo Fisher Scientific remains one of the larger companies by market value in the health care and scientific instruments sector, with its $250.15 billion capitalization reflecting its scale across diagnostics, research tools, and laboratory services.
