Aon (AON) Operating Margin (2009 - 2026)

Aon (AON) recorded quarterly Operating Margin of 34.07% in Q1 2026, up 21.27% quarter-over-quarter from 28.09% in Q4 2025, and up 317.0% on a YoY basis from 8.17% in Q1 2025.

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

Aon's Operating Margin history runs 18 years deep, the most recent figure standing at 34.07% for Q1 2026.

  • In Q1 2026, Operating Margin rose 317.0% year-over-year to 34.07%; the TTM figure through Mar 2026 stood at 26.3% (up 287.0% YoY), while the FY2025 annual figure was 25.28%, up 85.0% from the prior year.
  • Operating Margin was 34.07% for Q1 2026 at Aon, up from 28.09% in the prior quarter.
  • In the past five years, Operating Margin ranged from a high of 38.05% in Q1 2023 to a low of 16.74% in Q3 2024.
  • Historically, Operating Margin has averaged 26.86% across 5 years, with a median of 26.31% in 2024.
  • The sharpest annual moves came in 2022 and 2023: Operating Margin soared 5153 bps in 2022, then plunged 925 bps in 2023.
  • A 5-year view of Operating Margin shows it stood at 32.33% in 2022, then declined by 29 bps to 23.08% in 2023, then gained by 14 bps to 26.31% in 2024, then rose by 7 bps to 28.09% in 2025, then grew by 21 bps to 34.07% in 2026.
  • The last three Operating Margin figures came in at 34.07% (Q1 2026), 28.09% (Q4 2025), and 20.42% (Q3 2025), per Business Quant data.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Operating Margin (Qtr)
1 Marsh & Mclennan Companies 79.42 Bn 67.92 Bn 5.88 Bn 23.09%
2 Aon 69.98 Bn 68.59 Bn - 34.07%
3 Arthur J. Gallagher 55.55 Bn 54.17 Bn - -
4 Willis Towers Watson 24.71 Bn 22.93 Bn 1.98 Bn 18.96%
5 Brown & Brown 19.80 Bn 18.82 Bn 1.61 Bn 83.90%
6 XChange TEC.INC 6.75 Bn 6.75 Bn - -
7 Neptune Insurance Holdings 4.00 Bn 3.99 Bn - 35.56%
8 Corvel 2.98 Bn 2.64 Bn 54.92 Mn 13.68%
9 Accelerant Holdings 2.93 Bn 1.42 Bn 48.00 Mn 9.32%
10 Baldwin Insurance 1.62 Bn 2.07 Bn - -19.15%

Historic Data

Download Data
DateValue
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%
Jun 30, 2021 23.28%