Aon currently trades with a PEG ratio of 0.32, based on Jun 24, 2026 data. Dividing the 17.78 PE ratio by the 54.9% earnings growth rate produces this figure.
Historically, Aon has a PEG ratio averaging 2.24 across the last ten years. At 0.32, today's PEG ratio sits 86% less than its historical average. The ten years high came in the Mar 2024 quarter at 9.97, reflecting peak valuation relative to growth. The bottom was reached in the Sep 2022 quarter at 0.09, suggesting attractive value relative to growth during that period.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 0.57 | 20.62 | 36.3% |
| 2024 | N/A | 28.62 | -0.4% |
| 2023 | 7.7 | 23.1 | 3% |
| 2022 | 0.21 | 24.54 | 118.8% |
| 2021 | N/A | 53.77 | -34.2% |
| 2020 | 0.77 | 24.88 | 32.2% |
| 2019 | 0.83 | 32.44 | 39% |
| 2018 | N/A | 31.46 | -2.5% |
| 2017 | N/A | 28.27 | -9% |
| 2016 | 3.76 | 21.41 | 5.7% |
| 2015 | 4.45 | 18.7 | 4.2% |
| 2014 | 0.62 | 20.05 | 32.5% |
| 2013 | 1.29 | 23.5 | 18.2% |
| 2012 | 5.41 | 18.41 | 3.4% |
| 2011 | 0.76 | 16.03 | 21.2% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 0.32 | 17.63 | 54.9% |
| Dec 2025 | 0.57 | 20.62 | 36.3% |
| Sep 2025 | 5.25 | 28.37 | 5.4% |
| Jun 2025 | N/A | 29.66 | -4.5% |
| Mar 2025 | N/A | 33.76 | -8.2% |
| Dec 2024 | N/A | 28.62 | -0.4% |
| Sep 2024 | N/A | 29 | -10% |
| Jun 2024 | N/A | 23.3 | -2.6% |
| Mar 2024 | 9.97 | 25.93 | 2.6% |
| Dec 2023 | 7.7 | 23.1 | 3% |
| Sep 2023 | 8.74 | 24.47 | 2.8% |
| Jun 2023 | 0.31 | 26.7 | 85.5% |
| Mar 2023 | 0.25 | 25.14 | 99.4% |
| Dec 2022 | 0.21 | 24.54 | 118.8% |
| Sep 2022 | 0.09 | 20.78 | 223.9% |
Measured against past performance, AON's PEG ratio is lower than the 3, 5 and 10-year averages.
With a PEG of 0.32, AON stands lower than the Financial Services sector and the industry average. Looking at the Financial Services sector average of 0.47, Aon's PEG is 32% lower.
Relative to its peer stocks ACGL and AXS, AON's PEG ratio is higher.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| ACGL Arch Capital Group Ltd | 0.22 | $32.97B |
| AXS Axis Capital Holdings Ltd | 0.23 | $7.72B |
| AON Aon plc | 0.32 | $68.12B |
| MRSH Marsh | N/A | $78.73B |
Based on Jun 24, 2026 data, AON has a PEG ratio of 0.32.
Historical data over a 3-year period puts AON's average PEG ratio at 4.69.
Historical data over a 5-year period puts AON's average PEG ratio at 3.15.
The Mar 2024 quarter marked the ten years high at 9.97 for AON's PEG ratio.
Compared to the 10-year average, AON's PEG ratio stands 86% lower.
Strong earnings growth relative to valuation results in AON's low PEG ratio of 0.32.
Computing the PEG ratio involves dividing the PE ratio by the company's earnings per share growth (YoY TTM). As of Jun 24, 2026, Aon has a PE ratio of 17.78. Earnings grew at 54.9% over the TTM period ending Mar 2026. Applying the formula, this gives a PEG ratio of 0.32. PEG RATIO(0.32) = PE RATIO(17.78) / EPS GROWTH(54.9%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.