Start with its own history
At 24.14×, AJG is 27.7% below its 10-observation annual average. A lower multiple can reflect a lower price, higher earnings, or weaker growth expectations—not necessarily a bargain.
NYSE · AJGInsurance - BrokersUpdated Nov 2, 2026
Arthur J. Gallagher & Co. P/E ratio
Current valuation, historical context, and peer comparisons.
Current P/E ratio
24.14×
27.7% belowthe 10-year annual average
Share price277.66
÷Earnings per share11.5
Price and EPS in quote currency. Calculation details
Investors are paying 24.14 for every 1 of reported earnings per share.
P/E over time
2016 – 2025
Annual P/ESelected-period average 33.40×
3-year average45.69×3 positive annual observations
5-year average42.12×5 positive annual observations
10-year average33.40×10 positive annual observations
Peer median · TTM22.08×6 peers with positive P/E
Historical P/E ratios
Annual period-end data · 25 observations
| Period end | P/E | Change |
|---|---|---|
| Dec 31, 2025 | 44.39× | +3.7% |
| Dec 31, 2024 | 42.81× | -14.1% |
| Dec 31, 2023 | 49.86× | +40.2% |
| Dec 31, 2022 | 35.57× | -6.3% |
| Dec 31, 2021 | 37.96× | +31.6% |
| Dec 31, 2020 | 28.84× | +9.0% |
| Dec 31, 2019 | 26.45× | +24.5% |
| Dec 31, 2018 | 21.24× | -13.7% |
View all 25 annual observations +
| Period end | P/E | Change |
|---|---|---|
| Dec 31, 2017 | 24.62× | +10.4% |
| Dec 31, 2016 | 22.30× | +12.8% |
| Dec 31, 2015 | 19.78× | -17.2% |
| Dec 31, 2014 | 23.90× | +5.9% |
| Dec 31, 2013 | 22.56× | +4.8% |
| Dec 31, 2012 | 21.52× | -17.6% |
| Dec 31, 2011 | 26.12× | +44.6% |
| Dec 31, 2010 | 18.06× | +2.7% |
| Dec 31, 2009 | 17.59× | -43.7% |
| Dec 31, 2008 | 31.22× | +87.1% |
| Dec 31, 2007 | 16.68× | -25.5% |
| Dec 31, 2006 | 22.39× | -76.8% |
| Dec 31, 2005 | 96.50× | +508.7% |
| Dec 31, 2004 | 15.85× | -21.0% |
| Dec 31, 2003 | 20.06× | +0.3% |
| Dec 31, 2002 | 19.99× | -14.8% |
| Dec 31, 2001 | 23.46× | N/M |
Change is relative to the preceding observation. N/M values are excluded from averages.
How AJG compares
Company P/E vs. peer trailing-12-month ratios
| Company | P/E ratio |
|---|---|
 AJG This stockArthur J. Gallagher & Co. | 24.14× |
 MRSHMarsh & McLennan Companies, Inc. | 24.36× |
 BROBrown & Brown, Inc. | 19.36× |
 AONAon plc | 17.94× |
 WTWWillis Towers Watson Public Limited Company | 19.81× |
 RYANRyan Specialty Holdings, Inc. | 44.51× |
 BWINThe Baldwin Insurance Group, Inc. | N/M |
 CRD-ACrawford & Company | 25.80× |
 ZBAOZhibao Technology Inc. Class A Ordinary Shares | N/M |
Peers are selected by the data provider. Business models and earnings definitions can differ.
Put the numbers in context
What does AJG’s P/E tell you?
Compare like with like
The median of the 6 positive peer ratios above is 22.08×. Check growth, margins, debt, and earnings quality before interpreting the gap. A faster-growing business may justify a higher multiple.
Check what drives earnings
One-off gains can temporarily lower P/E; unusual charges can raise it. Reported earnings and forward estimates answer different questions. Pair this view with return on equity and liquidity for a fuller picture.
Keep your research connected
Take AJG into your spreadsheet
Pull historical P/E into Excel or Google Sheets with Wisesheets. Build your own comparisons alongside the rest of your financial model.
Explore WisesheetsQuarterly P/E · latest quarterLQ selects the latest reported quarter. Requires the Wisesheets add-in. See available data
=WISE("AJG", "PE Ratio", "LQ")Sources & calculation methodology
Current P/E
Share price 277.66 ÷ EPS 11.5 = 24.14×. Data is supplied by Financial Modeling Prep through Wisesheets. Quote feed updated Nov 2, 2026; this is not a real-time trading quote.
History & averages
Annual and quarterly P/E observations are provided separately from the current quote. Averages use the latest 3, 5, or 10 annual observations, excluding missing and nonpositive ratios. Pre-IPO observations are omitted. These are period-end observations, not daily averages.
Data definitions and limitations
The current quote feed does not specify the exact EPS filing-period end or whether EPS is basic or diluted. We do not label it as forward P/E. Peer ratios are explicitly trailing-12-month (TTM) values. Historical observations do not include independently verified price and EPS inputs. Sources may update on different schedules; rounded inputs can produce small calculation differences. Historical comparisons describe past pricing, not an estimate of fair value.
AJG P/E ratio: common questions
The essentials behind the numbers.
Arthur J. Gallagher & Co.'s current P/E is 24.14× based on the quote data last updated Nov 2, 2026. It represents the share price divided by reported earnings per share. Prices and earnings may refresh on different schedules.
Annual P/E uses earnings for a completed fiscal year. Trailing-12-month (TTM) P/E uses the latest four quarters, while forward P/E uses forecast earnings. These are not interchangeable. This page labels peer ratios as TTM and shows dated annual or quarterly historical observations; it does not show forward estimates.
N/M means not meaningful: the feed has no positive P/E for that observation. Negative or zero earnings should not be ranked as a low positive valuation multiple. N/M observations are excluded from the averages shown above.
Divide the share price by earnings per share (EPS). For example, a share price of 100 and EPS of 5 gives a P/E of 20×. This page uses the price and EPS supplied together in the quote when both are positive.
Price timestamps, EPS definitions, share classes, adjustments, and fiscal periods can differ. A forward P/E also uses forecast earnings rather than reported earnings. Compare the inputs and as-of dates before comparing two displayed ratios.
Not necessarily. The average describes previous market pricing, not fair value. Changes in earnings quality, growth expectations, debt, accounting, and business risk can justify a different multiple today.