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

The median, or middle weekly reading, is 47.7× over the last five years. Available history contains 836 weekly observations from Oct 18, 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.

Costco (COST) valuation history

Within its usual range

As of Oct 22, 2026

COST's P/E of 48.1x is higher than 53% 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.

COST year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	45.8×	55%
Dec 30, 2024	53.8×	93%
Dec 25, 2023	45.0×	93%
Dec 26, 2022	34.7×	37%
Dec 27, 2021	48.8×	99%
Dec 28, 2020	38.7×	91%
Dec 30, 2019	34.6×	93%
Dec 31, 2018	28.0×	31%
Dec 25, 2017	29.6×	77%
Dec 26, 2016	29.2×	80%

Peers on the same measure

Stock	P/E	5-year rank
DGDollar General	17.2×	35%
DLTRDollar Tree	15.4×	19%
TGTTarget Corporation	15.8×	46%
BF-BBrown–Forman	18.2×	34%

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Consumer Staples 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 COST

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About this history

What is COST's current P/E?: COST's P/E of 48.1x is higher than 53% of its available weekly readings from the last five years.
What is COST's five-year median P/E?: The median, or middle weekly reading, is 47.7× over the last five years. Available history contains 836 weekly observations from Oct 18, 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.