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Asset Utilization RatioAssets AverageDebt RatioDebt to EquityEBIT MarginEBITDA MarginEBT MarginEnterprise ValueEquity AverageEquity RatioFCF MarginFCF Payout RatioInterest Coverage RatioInvested CapitalNet MarginOperating MarginReturn on AssetsReturn on Capital EmployedReturn on EquityReturn on Invested CapitalReturn on SalesTimes Interest Earned

Aon (AON) Operating Margin (2016 - 2025)

Aon (AON) has 17 years of Operating Margin data on record, last reported at 28.09% in Q4 2025.

  • For Q4 2025, Operating Margin rose 178.0% year-over-year to 28.09%; the TTM value through Dec 2025 reached 25.28%, up 85.0%, while the annual FY2025 figure was 25.28%, 85.0% up from the prior year.
  • Operating Margin reached 28.09% in Q4 2025 per AON's latest filing, up from 20.42% in the prior quarter.
  • Across five years, Operating Margin topped out at 38.05% in Q1 2023 and bottomed at 29.64% in Q3 2021.
  • Average Operating Margin over 5 years is 24.16%, with a median of 24.89% recorded in 2022.
  • Peak YoY movement for Operating Margin: tumbled -4814bps in 2021, then soared 5153bps in 2022.
  • A 5-year view of Operating Margin shows it stood at 31.62% in 2021, then rose by 2bps to 32.33% in 2022, then decreased by -29bps to 23.08% in 2023, then grew by 14bps to 26.31% in 2024, then rose by 7bps to 28.09% in 2025.
  • Per Business Quant database, its latest 3 readings for Operating Margin were 28.09% in Q4 2025, 20.42% in Q3 2025, and 20.67% in Q2 2025.