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

The median, or middle weekly reading, is 5.0× 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.

Aon plc (AON) valuation history

Historically low

As of Oct 22, 2026

AON's P/S of 3.6x is lower than 98% of its available weekly readings from the last five years.

Share P/S history

Shared chart range

Preview embed

Chart by stockresearch.app. Reuse with credit under CC BY 4.0.

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.

AON year-end valuation history
Reading date	P/S	5-year rank
Dec 29, 2025	4.4×	6%
Dec 30, 2024	5.2×	64%
Dec 25, 2023	4.5×	38%
Dec 26, 2022	5.1×	82%
Dec 27, 2021	5.6×	97%
Dec 28, 2020	4.5×	93%
Dec 30, 2019	4.6×	99%
Dec 31, 2018	3.3×	28%
Dec 25, 2017	3.5×	55%
Dec 26, 2016	3.0×	Short history

Peers on the same measure

Stock	P/S	5-year rank
AJGArthur J. Gallagher & Co.	Unavailable	Unranked
BROBrown & Brown	3.5×	7%
MRSHMarsh McLennan	3.2×	9%
WTWWillis Towers Watson	3.0×	44%

Appears in

Financials 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 AON

No published research on AON yet. Read how valuation percentiles work.

Loading related research…

About this history

What is AON's current P/S?: AON's P/S of 3.6x is lower than 98% of its available weekly readings from the last five years.
What is AON's five-year median P/S?: The median, or middle weekly reading, is 5.0× 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.