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

The median, or middle weekly reading, is 19.4× 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.

A. O. Smith (AOS) P/E ratio history

Below its usual range

As of Oct 22, 2026

AOS's P/E of 16.6x is lower than 89% 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.

AOS year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	18.0×	18%
Dec 30, 2024	18.1×	10%
Dec 25, 2023	40.8×	91%
Dec 26, 2022	18.2×	15%
Dec 27, 2021	29.7×	74%
Dec 28, 2020	28.1×	63%
Dec 30, 2019	19.7×	14%
Dec 31, 2018	22.4×	4%
Dec 25, 2017	30.0×	86%
Dec 26, 2016	26.0×	Short history

Peers on the same measure

Stock	P/E	5-year rank
ALLEAllegion	20.8×	54%
BLDRBuilders FirstSource	58.2×	96%
CARRCarrier Global	36.9×	61%
LIILennox International	16.3×	3%

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Research on AOS

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About this history

What is AOS's current P/E?: AOS's P/E of 16.6x is lower than 89% of its available weekly readings from the last five years.
What is AOS's five-year median P/E?: The median, or middle weekly reading, is 19.4× 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.