AON monthly performance report
Check AON's monthly returns, drawdown, and seasonality trends — updated every month.
AON monthly report
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Key takeaways
- Aon (AON) closed September 2026 at $295.64, down 8.05% for the month and −16.19% over the trailing 12 months.
- Year-to-date, AON is −16.22%, underperforming the S&P 500 which has returned +11.70% YTD.
- The stock is trading −11.92% versus its 200-day moving average ($335.64), a cautious technical signal.
- Over the past three years, AON has underperformed the S&P 500 by −84.57%, with a relative strength index reading of 50.7.
- Win rate over the trailing 39 months stands at 48.7% — 19 positive months versus 20 negative months.
Aon ended September 2026 at $295.64, posting a monthly return of −8.05%. The S&P 500 returned −0.70% over the same window, leaving relative performance at −7.35%.
The current quarter stands at −10.87% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −11.92% versus the 200-day moving average ($335.64).
Year-to-date, AON is −16.22% against SPY +11.70%, a gap of −27.92%. The stock is currently −22.68% below its 52-week high, with maximum 3-year drawdown at −27.77%.
| Period | AON | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −0.14% | −0.12% | −0.02% |
| 1 Week | −2.33% | −0.34% | −1.99% |
| 1 Month | −8.05% | −0.70% | −7.35% |
| 3 Months | −10.80% | +2.80% | −13.60% |
| 6 Months | −8.02% | +13.85% | −21.87% |
| YTD | −16.22% | +11.70% | −27.92% |
| 12 Months | −16.19% | +15.01% | −31.21% |
| 3 Years | −12.87% | +71.69% | −84.57% |
| Rank | Month | Return |
|---|---|---|
| #1 | Jul 2024 | +11.90% |
| #2 | Feb 2025 | +10.33% |
| #3 | Jul 2026 | +8.70% |
| #4 | Nov 2024 | +6.72% |
| #5 | Nov 2023 | +6.17% |
| Rank | Month | Return |
|---|---|---|
| #1 | Apr 2024 | −15.50% |
| #2 | Dec 2023 | −11.41% |
| #3 | Apr 2025 | −11.10% |
| #4 | Aug 2026 | −10.83% |
| #5 | Dec 2024 | −8.27% |
| Quarter | Return |
|---|---|
| Q2 2025 | −10.61% |
| Q3 2025 | −0.05% |
| Q4 2025 | −1.04% |
| Q1 2026 | −8.53% |
| Q2 2026 | +2.76% |
| Q3 2026 (QTD) | −10.87% |
| Year | Return |
|---|---|
| 2023 | −3.04% |
| 2024 | +23.41% |
| 2025 | −1.75% |
| 2026 | −16.22% |
| Metric | Value |
|---|---|
| 52-Week High | $382.34 (2026-07-28) |
| 52-Week Low | $293.00 (2026-09-18) |
| Current Price | $295.64 |
| 200-Day Moving Average | $335.64 |
| Price vs 200DMA | −11.92% |
| 3-Year Maximum Drawdown | −27.77% (2026-09-18) |
| Current Drawdown from 52W High | −22.68% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 50.7 |
| 3-Year Excess Return vs S&P 500 | −84.57% |
| RS Peak | 102.5 (Sep 2023) |
| RS Trough | 50.7 (Sep 2026) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was AON's return for this report period?
AON returned −8.05% in the latest monthly window ending 2026-09-18.
Has AON outperformed SPY year to date?
YTD AON: −16.22% vs SPY: +11.70%.
What is AON's 12-month return?
−16.19% over the trailing 12 months.
Is AON above or below its 200-day moving average?
Price is −11.92% versus 200DMA ($335.64).
What is the maximum drawdown in the 3-year window?
−27.77% on 2026-09-18.