Aon (AON) Market Capitalization (2009 - 2026)
Aon (AON) recorded Market Capitalization of $58.72 billion in Q3 2026, down 23.4% from $76.64 billion a year earlier and down 16.5% from the prior quarter.
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Analysis
Aon (AON) Market Capitalization (2009 - 2026) Analysis & Trends
For FY2025, Aon reported Market Capitalization of $75.61 billion, down 2.5% from FY2024.
- Annual Market Capitalization has a five-year compound annual growth rate of 9.6% (FY2020 to FY2025).
- Across earlier years, Market Capitalization came in at $77.58 billion in FY2024 (+34.4%), $57.71 billion in FY2023 (-6.3%), $61.57 billion in FY2022 (-4.2%) and $64.3 billion in FY2021 (+34.7%).
- The Q3 2026 figure is the lowest quarterly Market Capitalization since Q4 2023.
- On a year-over-year basis, Market Capitalization has declined for four consecutive quarters, with growth averaging 2.7% over the last eight quarters.
- Peak year-over-year performance for Market Capitalization in the last five years was growth of 34.7% in Q4 2021, against a decline of 23.4% in Q3 2026 at the low end.
- Per Business Quant, the preceding three quarters came in at $70.36 billion (Q2 2026), $68.94 billion (Q1 2026) and $75.61 billion (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) |
|---|---|---|---|---|
| 1 | Chubb | 140.29 Bn | 85.93 Bn | 8.67 Bn |
| 2 | Progressive | 132.20 Bn | 107.72 Bn | 8.29 Bn |
| 3 | Marsh & Mclennan Companies | 96.60 Bn | 88.76 Bn | - |
| 4 | Travelers Companies | 82.11 Bn | 59.60 Bn | 5.93 Bn |
| 5 | Manulife Financial | 75.43 Bn | 8.45 Bn | - |
| 6 | Arthur J. Gallagher | 71.09 Bn | 65.68 Bn | - |
| 7 | Aon | 70.49 Bn | 49.69 Bn | - |
| 8 | Metlife | 65.52 Bn | -41.26 Bn | 7.82 Bn |
| 9 | Allstate | 64.49 Bn | 24.33 Bn | 7.41 Bn |
| 10 | Aflac | 62.39 Bn | 38.74 Bn | 1.87 Bn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 58.72 Bn |
| Jun 30, 2026 | 70.36 Bn |
| Mar 31, 2026 | 68.94 Bn |
| Dec 31, 2025 | 75.61 Bn |
| Sep 30, 2025 | 76.64 Bn |
| Jun 30, 2025 | 76.93 Bn |
| Mar 31, 2025 | 86.18 Bn |
| Dec 31, 2024 | 77.58 Bn |
| Sep 30, 2024 | 74.83 Bn |
| Jun 30, 2024 | 63.78 Bn |
| Mar 31, 2024 | 72.56 Bn |
| Dec 31, 2023 | 57.71 Bn |
| Sep 30, 2023 | 64.91 Bn |
| Jun 30, 2023 | 70.03 Bn |
| Mar 31, 2023 | 64.40 Bn |
| Dec 31, 2022 | 61.57 Bn |
| Sep 30, 2022 | 55.41 Bn |
| Jun 30, 2022 | 56.88 Bn |
| Mar 31, 2022 | 69.16 Bn |
| Dec 31, 2021 | 64.30 Bn |
API Access
Aon Market Capitalization 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=market-capitalization&ticker=AON&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "market-capitalization", "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=market-capitalization&ticker=AON&period=max&api_key=YOUR_API_KEY");
const data = await res.json();