Aon plc (AON) stock
AONNYSEInsurance Agents, Brokers & ServiceFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 19/3028% below fair value
$333.42−3.13 (-0.93%)
Close on Nov 12, 2026Market cap $70.74BP/E 18.3Yield 0.87%
Aon operating margin
Operating margin is operating income as a percentage of revenue.
Aon's operating margin for the twelve months ending Sep 30, 2026 was 26.3%. For fiscal 2025 it was 25.3%, against 24.4% the year before. The highest annual figure on record is 29.4% in fiscal 2022.
Annual operating margin
| Period | Period end | Value | Change (pts) |
|---|---|---|---|
| FY2025 | Dec 31, 2025 | 25.3% | +0.9 |
| FY2024 | Dec 31, 2024 | 24.4% | −3.9 |
| FY2023 | Dec 31, 2023 | 28.3% | −1.1 |
| FY2022 | Dec 31, 2022 | 29.4% | +12.3 |
| FY2021 | Dec 31, 2021 | 17.1% | −8.0 |
| FY2020 | Dec 31, 2020 | 25.1% | +5.4 |
| FY2019 | Dec 31, 2019 | 19.7% | +5.4 |
| FY2018 | Dec 31, 2018 | 14.3% | +3.7 |
| FY2017 | Dec 31, 2017 | 10.7% | −8.6 |
| FY2016 | Dec 31, 2016 | 19.2% | +2.5 |
| FY2015 | Dec 31, 2015 | 16.7% | +0.4 |
| FY2014 | Dec 31, 2014 | 16.3% | +2.2 |
| FY2013 | Dec 31, 2013 | 14.1% | +0.3 |
| FY2012 | Dec 31, 2012 | 13.9% | −0.3 |
| FY2011 | Dec 31, 2011 | 14.1% | −0.5 |
| FY2010 | Dec 31, 2010 | 14.6% | +1.2 |
| FY2009 | Dec 31, 2009 | 13.4% | +1.0 |
| FY2008 | Dec 31, 2008 | 12.5% | −1.4 |
| FY2007 | Dec 31, 2007 | 13.9% | – |
Quarterly operating margin
Change is against the same quarter a year earlier.
| Period | Period end | Value | Change (pts) |
|---|---|---|---|
| Q3 FY2026 | Sep 30, 2026 | 19.7% | −0.7 |
| Q2 FY2026 | Jun 30, 2026 | 21.5% | +0.9 |
| Q1 FY2026 | Mar 31, 2026 | 34.1% | +3.2 |
| Q4 FY2025 | Dec 31, 2025 | 28.1% | +1.8 |
| Q3 FY2025 | Sep 30, 2025 | 20.4% | +3.7 |
| Q2 FY2025 | Jun 30, 2025 | 20.7% | +3.2 |
| Q1 FY2025 | Mar 31, 2025 | 30.9% | −5.1 |
| Q4 FY2024 | Dec 31, 2024 | 26.3% | +3.2 |
| Q3 FY2024 | Sep 30, 2024 | 16.7% | −6.7 |
| Q2 FY2024 | Jun 30, 2024 | 17.4% | −9.1 |
| Q1 FY2024 | Mar 31, 2024 | 36.0% | −2.1 |
| Q4 FY2023 | Dec 31, 2023 | 23.1% | −9.3 |
| Q3 FY2023 | Sep 30, 2023 | 23.4% | +1.5 |
| Q2 FY2023 | Jun 30, 2023 | 26.5% | +3.0 |
| Q1 FY2023 | Mar 31, 2023 | 38.1% | +0.8 |
| Q4 FY2022 | Dec 31, 2022 | 32.3% | +0.7 |
| Q3 FY2022 | Sep 30, 2022 | 21.9% | +51.5 |
| Q2 FY2022 | Jun 30, 2022 | 23.5% | +0.2 |
| Q1 FY2022 | Mar 31, 2022 | 37.2% | +1.9 |
| Q4 FY2021 | Dec 31, 2021 | 31.6% | +7.6 |
| Q3 FY2021 | Sep 30, 2021 | -29.6% | −48.1 |
| Q2 FY2021 | Jun 30, 2021 | 23.3% | −0.5 |
| Q1 FY2021 | Mar 31, 2021 | 35.3% | +3.2 |
| Q4 FY2020 | Dec 31, 2020 | 24.0% | +5.9 |
| Q3 FY2020 | Sep 30, 2020 | 18.5% | +3.4 |
| Q2 FY2020 | Jun 30, 2020 | 23.8% | +7.9 |
| Q1 FY2020 | Mar 31, 2020 | 32.1% | +4.3 |
| Q4 FY2019 | Dec 31, 2019 | 18.2% | +0.1 |
| Q3 FY2019 | Sep 30, 2019 | 15.1% | +4.0 |
| Q2 FY2019 | Jun 30, 2019 | 15.8% | +16.5 |
| Q1 FY2019 | Mar 31, 2019 | 27.7% | +1.9 |
| Q4 FY2018 | Dec 31, 2018 | 18.0% | −2.6 |
| Q3 FY2018 | Sep 30, 2018 | 11.2% | +0.2 |
| Q2 FY2018 | Jun 30, 2018 | -0.6% | +4.7 |
| Q1 FY2018 | Mar 31, 2018 | 25.9% | +11.8 |
| Q4 FY2017 | Dec 31, 2017 | 20.7% | +3.2 |
| Q3 FY2017 | Sep 30, 2017 | 10.9% | – |
| Q2 FY2017 | Jun 30, 2017 | -5.4% | – |
| Q1 FY2017 | Mar 31, 2017 | 14.1% | – |
| Q4 FY2016 | Dec 31, 2016 | 17.5% | – |
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