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

The median, or middle weekly reading, is 0.4× over the last five years. Available history contains 713 weekly observations from Feb 25, 2013 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.

Phillips 66 (PSX) valuation history

Historically high

As of Oct 22, 2026

PSX's P/S of 0.8x is higher than 99% 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.

PSX year-end valuation history
Reading date	P/S	5-year rank
Dec 29, 2025	0.4×	70%
Dec 30, 2024	0.3×	41%
Dec 25, 2023	0.4×	70%
Dec 26, 2022	0.3×	18%
Dec 27, 2021	0.3×	16%
Dec 28, 2020	0.4×	30%
Dec 30, 2019	0.5×	50%
Dec 31, 2018	0.4×	39%
Dec 25, 2017	0.5×	97%
Dec 26, 2016	0.6×	98%

Peers on the same measure

Stock	P/S	5-year rank
MPCMarathon Petroleum	0.9×	99%
VLOValero Energy	0.9×	99%
COPConocoPhillips	2.8×	94%
CVXChevron Corporation	2.1×	100%

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Research on PSX

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About this history

What is PSX's current P/S?: PSX's P/S of 0.8x is higher than 99% of its available weekly readings from the last five years.
What is PSX's five-year median P/S?: The median, or middle weekly reading, is 0.4× over the last five years. Available history contains 713 weekly observations from Feb 25, 2013 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.