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

The median, or middle weekly reading, is 36.8× 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.

Align Technology (ALGN) valuation history

Historically low

As of Oct 22, 2026

ALGN's P/E of 26.4x is lower than 90% 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.

ALGN year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	30.2×	23%
Dec 30, 2024	35.6×	37%
Dec 25, 2023	58.1×	65%
Dec 26, 2022	32.6×	33%
Dec 27, 2021	71.0×	71%
Dec 28, 2020	24.3×	15%
Dec 30, 2019	53.8×	38%
Dec 31, 2018	48.8×	27%
Dec 25, 2017	67.3×	86%
Dec 26, 2016	40.9×	Short history

Peers on the same measure

Stock	P/E	5-year rank
COOCooper Companies (The)	20.2×	17%
WSTWest Pharmaceutical Services	50.4×	88%
AAgilent Technologies	35.1×	87%
ABBVAbbVie	80.5×	76%

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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 ALGN

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About this history

What is ALGN's current P/E?: ALGN's P/E of 26.4x is lower than 90% of its available weekly readings from the last five years.
What is ALGN's five-year median P/E?: The median, or middle weekly reading, is 36.8× 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.