Aon (AON) Operating Margin (2009 - 2026)
Aon's Operating Margin was 19.73% in Q3 2026, down 0.69 percentage points from 20.42% a year earlier and down 1.82 percentage points from the prior quarter.
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Analysis
Aon (AON) Operating Margin (2009 - 2026) Analysis & Trends
On a trailing twelve-month basis, Aon's Operating Margin was 26.28% through Sep 30, 2026, up 1.46 percentage points year-over-year; for FY2025, it was 25.28%, up 0.85 percentage points from FY2024.
- Operating Margin shows a five-year change of +0.15 percentage points (FY2020 to FY2025).
- In earlier years, Operating Margin was 24.43% in FY2024 (-3.87 pp), 28.30% in FY2023 (-1.10 pp), 29.40% in FY2022 (+12.26 pp) and 17.14% in FY2021 (-7.99 pp).
- The Q3 2026 figure marks the lowest quarterly Operating Margin since Q3 2024.
- Compared with a year earlier, Operating Margin was higher in six of the last eight quarters, with an average year-over-year change of +1.27 percentage points.
- The best year-over-year quarter for Operating Margin over five years was Q3 2022 (a gain of 51.53 percentage points); the worst was Q4 2023 (a drop of 9.25 percentage points).
- Per Business Quant data, AON's Operating Margin in the three quarters before Q3 2026 was 21.55% (Q2 2026), 34.07% (Q1 2026) and 28.09% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Chubb | 140.04 Bn | 85.69 Bn | 8.67 Bn | 22.27% |
| 2 | Progressive | 132.33 Bn | 107.86 Bn | 8.29 Bn | 14.33% |
| 3 | Marsh & Mclennan Companies | 97.77 Bn | 89.93 Bn | - | 17.70% |
| 4 | Travelers Companies | 81.70 Bn | 59.18 Bn | 5.93 Bn | 20.04% |
| 5 | Manulife Financial | 75.38 Bn | -20.12 Bn | - | - |
| 6 | Arthur J. Gallagher | 72.26 Bn | 66.85 Bn | - | - |
| 7 | Aon | 71.52 Bn | 50.73 Bn | - | 19.73% |
| 8 | Metlife | 65.44 Bn | -41.34 Bn | 7.82 Bn | 21.42% |
| 9 | Allstate | 63.89 Bn | 23.73 Bn | 7.41 Bn | 15.64% |
| 10 | Aflac | 62.31 Bn | 38.67 Bn | 1.87 Bn | -27.42% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 19.73% |
| Jun 30, 2026 | 21.55% |
| Mar 31, 2026 | 34.07% |
| Dec 31, 2025 | 28.09% |
| Sep 30, 2025 | 20.42% |
| Jun 30, 2025 | 20.67% |
| Mar 31, 2025 | 30.89% |
| Dec 31, 2024 | 26.31% |
| Sep 30, 2024 | 16.74% |
| Jun 30, 2024 | 17.45% |
| Mar 31, 2024 | 36.00% |
| Dec 31, 2023 | 23.08% |
| Sep 30, 2023 | 23.40% |
| Jun 30, 2023 | 26.50% |
| Mar 31, 2023 | 38.05% |
| Dec 31, 2022 | 32.33% |
| Sep 30, 2022 | 21.88% |
| Jun 30, 2022 | 23.47% |
| Mar 31, 2022 | 37.25% |
| Dec 31, 2021 | 31.62% |
API Access
Aon Operating Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=operating-margin&ticker=AON&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "operating-margin", "ticker": "AON", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=operating-margin&ticker=AON&period=max&api_key=YOUR_API_KEY");
const data = await res.json();