What is MRK's five-year median P/S?

The median, or middle weekly reading, is 4.5× over the last five years. Available history contains 281 weekly observations from Jun 7, 2021 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.

Merck & Co. (MRK) P/S ratio history

Historically high

As of Oct 22, 2026

MRK's P/S of 5.6x is higher than 98% of its available weekly readings from the last five years.

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P/S 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.

MRK year-end valuation history
Reading date	P/S	5-year rank
Dec 29, 2025	4.1×	45%
Dec 30, 2024	4.0×	18%
Dec 25, 2023	4.7×	75%
Dec 26, 2022	4.8×	98%
Dec 27, 2021	3.6×	15%

Peers on the same measure

Stock	P/S	5-year rank
BMYBristol Myers Squibb	2.5×	52%
LLYLilly (Eli)	14.3×	51%
PFEPfizer	2.7×	67%
VTRSViatris	1.5×	99%

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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 MRK

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About this history

What is MRK's current P/S?: MRK's P/S of 5.6x is higher than 98% of its available weekly readings from the last five years.
What is MRK's five-year median P/S?: The median, or middle weekly reading, is 4.5× over the last five years. Available history contains 281 weekly observations from Jun 7, 2021 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.