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

The median, or middle weekly reading, is 51.6× over the last five years. Available history contains 859 weekly observations from May 10, 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.

Quanta Services (PWR) P/E ratio history

Above its usual range

As of Oct 22, 2026

PWR's P/E of 68.9x is higher than 84% 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.

PWR year-end valuation history
Reading date	P/E	5-year rank
Dec 29, 2025	65.1×	96%
Dec 30, 2024	60.4×	98%
Dec 25, 2023	46.0×	80%
Dec 26, 2022	48.8×	97%
Dec 27, 2021	30.1×	89%
Dec 28, 2020	26.6×	90%
Dec 30, 2019	17.7×	46%
Dec 31, 2018	13.9×	8%
Dec 25, 2017	21.1×	74%
Dec 26, 2016	49.8×	99%

Peers on the same measure

Stock	P/E	5-year rank
ADPAutomatic Data Processing	26.9×	22%
ALLEAllegion	20.8×	54%
AMEAmetek	36.6×	96%
AOSA. O. Smith	16.6×	11%

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Research on PWR

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About this history

What is PWR's current P/E?: PWR's P/E of 68.9x is higher than 84% of its available weekly readings from the last five years.
What is PWR's five-year median P/E?: The median, or middle weekly reading, is 51.6× over the last five years. Available history contains 859 weekly observations from May 10, 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.