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

The median, or middle weekly reading, is 8.1× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 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.

West Pharmaceutical Services (WST) P/S ratio history

Within its usual range

As of Oct 22, 2026

WST's P/S of 8.4x is higher than 60% 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.

WST year-end valuation history
Reading date	P/S	5-year rank
Dec 29, 2025	6.7×	22%
Dec 30, 2024	8.6×	36%
Dec 25, 2023	9.1×	51%
Dec 26, 2022	6.1×	38%
Dec 27, 2021	13.3×	97%
Dec 28, 2020	11.9×	98%
Dec 30, 2019	6.4×	100%
Dec 31, 2018	4.4×	46%
Dec 25, 2017	4.8×	85%
Dec 26, 2016	4.3×	Short history

Peers on the same measure

Stock	P/S	5-year rank
ALGNAlign Technology	2.6×	9%
COOCooper Companies (The)	2.7×	2%
AAgilent Technologies	6.8×	93%
ABBVAbbVie	7.8×	100%

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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 WST

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About this history

What is WST's current P/S?: WST's P/S of 8.4x is higher than 60% of its available weekly readings from the last five years.
What is WST's five-year median P/S?: The median, or middle weekly reading, is 8.1× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 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.