Thermo Fisher Scientific market cap TMO

Share price times shares outstanding: what the whole company sells for, since 2009.

Thermo Fisher Scientific is worth $249.1B at the close on Oct 23, 2026, at $673.82 a share.

That is up 15% over the last year and up 0% over five years.

Its highest close in our data was $262.9B in Dec 2021.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$249.1B	$162.9B	$255.1B	+14%
2025	$218.2B	$148.6B	$228.6B	+8%
2024	$201.2B	$196.3B	$235.2B	−2%
2023	$205.1B	$166.5B	$232.8B	−5%
2022	$216B	$194.4B	$239.2B	−18%
2021	$262.9B	$175.2B	$262.9B	+42%
2020	$184.6B	$109.4B	$209.1B	+41%
2019	$130.9B	$89.3B	$131B	+46%
2018	$89.6B	$80.3B	$100.5B	+18%
2017	$76.1B	$56.7B	$77.7B	+37%
2016	$55.7B	$49.2B	$62.7B	−2%
2015	$56.6B	$48.3B	$56.6B	+11%
2014	$51.1B	$39.7B	$51.7B	+28%
2013	$40B	$23.5B	$40B	+76%
2012	$22.7B	$18B	$23.2B	+33%
2011	$17B	$16.6B	$25B	−23%
2010	$22B	$17.6B	$22.6B	+13%
2009	$19.5B	$18B	$19.9B	n/a

Companies in Medical - Diagnostics & Research nearest Thermo Fisher Scientific's size, closest first, today.

Company	Market cap
TMOThermo Fisher Scientific	$249.1B
DHRDanaher	$162B
AAgilent Technologies	$48.8B
IQVIQVIA	$46B
WATWaters	$44.6B
IDXXIDEXX Laboratories	$44.1B
ILMNIllumina	$40.7B
MTDMettler-Toledo International	$33.5B
DGXQuest Diagnostics	$26.7B
LHLabcorp	$26.7B
Peer median	$44.1B