Aon AON
NYSE AON
$351.88 +3.46 (+0.99%)
At close: Aug 20, 2026 · 4:00 PM EDT

Aon (AON) Operating Margin (2009 - 2026)

Aon (AON) posted quarterly Operating Margin of 21.55% for Q2 2026, up 88.0% year-over-year from 11.46% in Q2 2025, and down 36.75% quarter-over-quarter from 34.07% in Q1 2026.

Aon (AON) Operating Margin (2009 - 2026) Analysis & Trends

Aon's Operating Margin history runs 18 years deep, the most recent figure standing at 21.55% for Q2 2026.

  • In Q2 2026, Operating Margin rose 88.0% year-over-year to 21.55%; the TTM figure through Jun 2026 stood at 26.48% (up 240.0% YoY), while the FY2025 annual figure was 25.28%, up 85.0% from the prior year.
  • Operating Margin for Q2 2026 stood at 21.55%, down from 34.07% in the prior quarter.
  • The five-year high for Operating Margin was 38.05% in Q1 2023, with the low at 16.74% in Q3 2024.
  • The 5-year median for Operating Margin is 24.89% (2022), against an average of 26.56%.
  • The sharpest annual moves came in 2022 and 2023: Operating Margin surged 5153 bps in 2022, then tumbled 925 bps in 2023.
  • Aon's Operating Margin stood at 32.33% in 2022, then dropped by 29 bps to 23.08% in 2023, then rose by 14 bps to 26.31% in 2024, then increased by 7 bps to 28.09% in 2025, then dropped by 23 bps to 21.55% in 2026.
  • Business Quant data shows AON's Operating Margin at 21.55% in Q2 2026, 34.07% in Q1 2026, and 28.09% in Q4 2025.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Operating Margin (Qtr)
1 XChange TEC.INC 279.91 Bn 279.90 Bn - -
2 Marsh & Mclennan Companies 91.40 Bn 79.19 Bn 6.04 Bn 25.65%
3 Aon 75.07 Bn 73.80 Bn - 21.55%
4 Arthur J. Gallagher 66.45 Bn 65.07 Bn - -
5 Willis Towers Watson 32.02 Bn 30.36 Bn 2.09 Bn 14.76%
6 Brown & Brown 23.72 Bn 22.80 Bn 1.41 Bn 6.68%
7 Erie Indemnity 12.11 Bn 11.77 Bn - 18.73%
8 Neptune Insurance Holdings 4.50 Bn 4.48 Bn - 47.52%
9 Accelerant Holdings 4.28 Bn 2.62 Bn 285.20 Mn 2.02%
10 Corvel 3.60 Bn 3.25 Bn - -

Historic Data

Download Data
DateValue
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%
Sep 30, 2021 -29.64%