What is TMO's five-year median P/E?

The median, or middle weekly reading, is 31.7× over the last five years. Available history contains 859 weekly observations from May 10, 2010 to Oct 19, 2026.

Does a low historical rank mean a stock is a buy?

No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.

Thermo Fisher Scientific (TMO) P/E ratio history

Historically high

As of Oct 22, 2026

TMO's P/E of 37.3x is higher than 92% of its available weekly readings from the last five years.

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P/E at year-end

Last weekly reading of each completed year. Rank runs from lowest (0%) to highest (100%) within the five years available on that date.

TMO year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	34.2×	72%
Dec 30, 2024	33.4×	51%
Dec 25, 2023	34.8×	63%
Dec 26, 2022	31.0×	35%
Dec 27, 2021	31.0×	24%
Dec 28, 2020	38.2×	77%
Dec 30, 2019	36.3×	75%
Dec 31, 2018	35.0×	80%
Dec 25, 2017	32.2×	86%
Dec 26, 2016	28.2×	51%

Peers on the same measure

Stock	P/E	5-year rank
AAgilent Technologies	35.1×	87%
CRLCharles River Laboratories	Unavailable	Unranked
DHRDanaher Corporation	41.5×	58%
IQVIQVIA	34.3×	61%

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Health Care Stocks with Low P/E Ratios and Steady Revenue Growth Stocks Below Their 5-Year Median P/E Stocks Near Their Lowest P/E Ratios in 5 Years

Research on TMO

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About this history

What is TMO's current P/E?: TMO's P/E of 37.3x is higher than 92% of its available weekly readings from the last five years.
What is TMO's five-year median P/E?: The median, or middle weekly reading, is 31.7× over the last five years. Available history contains 859 weekly observations from May 10, 2010 to Oct 19, 2026.
Does a low historical rank mean a stock is a buy?: No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.