Aon (AON) Invested Capital (2009 - 2026)
Aon (AON) posted Invested Capital of $24.7 billion for Q2 2026, little changed on a QoQ basis from $24.6 billion in Q1 2026, and down 2.54% year-over-year from $25.3 billion in Q2 2025.
Aon (AON) Invested Capital (2009 - 2026) Analysis & Trends
Aon has reported Invested Capital for 18 years, with the latest figure at $24.7 billion in Q2 2026.
- On a quarterly basis, Invested Capital fell 2.54% year-over-year to $24.7 billion in Q2 2026; TTM through Jun 2026 was $24.7 billion, a 2.54% decrease from a year earlier, with the FY2025 full-year figure at $24.7 billion, up 5.95% from the prior year.
- Invested Capital was $24.7 billion for Q2 2026 at Aon, roughly flat from $24.6 billion in the prior quarter.
- The five-year high for Invested Capital was $25.3 billion in Q2 2025, with the low at $10.2 billion in Q3 2022.
- Average Invested Capital over 5 years is $18.0 billion, with a median of $19.9 billion recorded in 2024.
- The sharpest annual moves came in 2022 and 2024: Invested Capital declined 5.56% in 2022, then soared 123.02% in 2024.
- Over 5 years, Invested Capital stood at $10.3 billion in 2022, then climbed by 1.12% to $10.5 billion in 2023, then jumped by 123.02% to $23.3 billion in 2024, then rose by 5.95% to $24.7 billion in 2025, then declined by 0.22% to $24.7 billion in 2026.
- The last three Invested Capital figures came in at $24.7 billion (Q2 2026), $24.6 billion (Q1 2026), and $24.7 billion (Q4 2025), per Business Quant data.
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Invested Cap. (Qtr) |
|---|---|---|---|---|---|
| 1 | Marsh & Mclennan Companies | 81.24 Bn | 69.29 Bn | 6.04 Bn | 36.64 Bn |
| 2 | Aon | 60.67 Bn | 59.43 Bn | - | 24.65 Bn |
| 3 | Arthur J. Gallagher | 59.09 Bn | 57.73 Bn | - | 38.74 Bn |
| 4 | Willis Towers Watson | 28.02 Bn | 26.44 Bn | 2.09 Bn | 14.30 Bn |
| 5 | Brown & Brown | 20.61 Bn | 19.72 Bn | 1.41 Bn | 20.37 Bn |
| 6 | XChange TEC.INC | 11.95 Bn | 11.95 Bn | - | -27.41 Mn |
| 7 | Erie Indemnity | 10.83 Bn | 10.48 Bn | - | - |
| 8 | Ryan Specialty Holdings | 9.82 Bn | 10.19 Bn | - | 4.65 Bn |
| 9 | Hagerty | 4.67 Bn | 4.81 Bn | 244.11 Mn | 865.76 Mn |
| 10 | Baldwin Insurance | 4.45 Bn | 4.81 Bn | - | 3.69 Bn |
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 24.65 Bn |
| Mar 31, 2026 | 24.62 Bn |
| Dec 31, 2025 | 24.71 Bn |
| Sep 30, 2025 | 24.90 Bn |
| Jun 30, 2025 | 25.30 Bn |
| Mar 31, 2025 | 24.83 Bn |
| Dec 31, 2024 | 23.32 Bn |
| Sep 30, 2024 | 23.51 Bn |
| Jun 30, 2024 | 23.64 Bn |
| Mar 31, 2024 | 16.49 Bn |
| Dec 31, 2023 | 10.46 Bn |
| Sep 30, 2023 | 10.77 Bn |
| Jun 30, 2023 | 11.49 Bn |
| Mar 31, 2023 | 11.41 Bn |
| Dec 31, 2022 | 10.34 Bn |
| Sep 30, 2022 | 10.16 Bn |
| Jun 30, 2022 | 11.19 Bn |
| Mar 31, 2022 | 11.58 Bn |
| Dec 31, 2021 | 10.55 Bn |
| Sep 30, 2021 | 10.70 Bn |
Aon Invested Capital 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=invested-capital&ticker=AON&period=max&api_key=YOUR_API_KEY
import requests
url = "https://data.businessquant.com/historic"
params = {"slug": "invested-capital", "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=invested-capital&ticker=AON&period=max&api_key=YOUR_API_KEY");
const data = await res.json();