US stock · data to 2026-10-20
Aon plc (AON)
Aon plc: $296.50 on 2026-10-20. +10.7% a year since 1980, worst fall -71%. Year-by-year returns, risk profile and what followed its price patterns in the past.
Open the interactive chart and full historyKey numbers
| Last close | $296.50 |
| Return a year since 1980 | +10.7% |
| All-time high | $409.32 (2025-03-03) |
| Below its high | -27.6% |
| Worst fall | -71% (2002-08-08) |
| Yearly volatility | 27% |
| Beta vs its index | 0.70 |
| Risk / reward vs its market | Low risk · Low reward |
Returns by year
| Year | Return |
|---|---|
| 2026 | -16.0% |
| 2025 | -1.7% |
| 2024 | +23.4% |
| 2023 | -3.0% |
| 2022 | -0.1% |
| 2021 | +42.3% |
| 2020 | +1.4% |
| 2019 | +43.3% |
| 2018 | +8.5% |
| 2017 | +20.1% |
| 2016 | +21.0% |
| 2015 | -2.8% |
What followed its price patterns in the past
How often AON was higher 40 trading days after each pattern, next to an ordinary day. History for learning, not a forecast.
| Pattern | Past cases | Higher after 40 days | On an ordinary day | Median move |
|---|---|---|---|---|
| Up streak | 159 | 52% | 62% | +0.9% |
| RSI rises above 70 | 159 | 52% | 62% | +1.5% |
| New 52-week high | 150 | 60% | 62% | +1.5% |
| Big up day | 136 | 59% | 62% | +2.6% |
| Volume spike on an up day | 132 | 73% | 62% | +4.2% |
| Volume spike on a down day | 129 | 60% | 62% | +2.3% |
| Crosses above 200-day avg | 122 | 55% | 62% | +1.3% |
| Falls below 200-day avg | 116 | 57% | 62% | +2.0% |
| Big down day | 109 | 61% | 62% | +1.9% |
| Down streak | 97 | 65% | 62% | +5.1% |
| RSI drops below 30 | 77 | 62% | 62% | +5.3% |
| Squeeze breakout up | 71 | 62% | 62% | +3.0% |
ZOSH shows history and calculations for learning. It is not investment advice and does not tell anyone to buy or sell. Data: Yahoo Finance, AMFI, NSE and official sources; it can be late or wrong, so check before acting.