AON
Aon plc Class A
stockNYSE
Market OpenOct 26, 2026 2:28:54 PM EDT
300.26USD-1.074%(-3.26)891,814
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63.95B
Financial
Insurance Brokers
CEO
Gregory C. Case
HQ
Dublin, London, Ireland
50,000
Previous Close
$303.44
Beta
-0.30
52-Week High
$382.34 2026-07-28
52-Week Low
$266.33 2026-10-05
SMA 50
$305.76
SMA 200
$326.66
Avg. Vol 10D
1.58M
Avg. Vol 30D
1.96M
Avg. Vol 90D
1.62M
Relative Vol
0.45
212.13M
209.96M
98.98%
4,223,243
2.01%
1.76
56%/44%
59.46%
30.17%
0.2800%
2,500,000
880
925
3,642
Oct 28, 2026 (2d)
Nov 1, 2024 · $0.675
May 18, 1999 · 3-for-2
17.6B
3.9B
18.15
26.48
44.88
Oct 26, 2026
Oct 21, 2026
Oct 14, 2026
401(k) Real Talk Episode 212: October 14, 2026 · 
Wealth Management
Oct 13, 2026
Oct 9, 2026
Aon Announces Quarterly Cash Dividend · 
PR Newswire
AON Profile
aon plc (nyse:aon) is a leading global professional services firm providing a broad range of risk, retirement and health solutions. our 50,000 colleagues in 120 countries empower results for clients by using proprietary data and analytics to deliver insights that reduce volatility and improve performance.
AON Performance
| Period | Price | Date | Change | Beta |
|---|---|---|---|---|
| 1W | 289.74 | 2026-10-19 | +4.05% | -1.620 |
| 1M | 277.99 | 2026-09-25 | +8.45% | -0.855 |
| 3M | 367.17 | 2026-07-27 | -17.89% | -0.350 |
| 6M | 323.78 | 2026-04-27 | -6.89% | -0.636 |
| 1Y | 336.87 | 2025-10-27 | -10.51% | -0.296 |
| 2Y | 375.44 | 2024-10-25 | -19.70% | — |
| 5Y | 320.24 | 2021-10-26 | -5.86% | 0.515 |
AON Stock Summary
Aon plc Class A (NYSE:AON) stock price today is $301.48, and today's volume is 881,669. AON is down 0.674% today. The 30 day average volume is 1.96M. AON market cap is $63.95B with 212.13M shares outstanding.