Aon - 45 Year Stock Price History | AON

Historical daily share price chart and data for Aon since 1980 adjusted for splits and dividends. The latest closing stock price for Aon as of April 17, 2025 is 367.41.
  • The all-time high Aon stock closing price was 409.32 on March 03, 2025.
  • The Aon 52-week high stock price is 412.97, which is 12.4% above the current share price.
  • The Aon 52-week low stock price is 268.06, which is 27% below the current share price.
  • The average Aon stock price for the last 52 weeks is 346.55.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
Aon Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 382.2445 354.3340 409.3200 347.8060 367.4100 2.48%
2024 323.7100 285.1010 392.5940 274.2470 358.5060 24.45%
2023 316.9872 294.1610 340.3660 281.3260 288.0710 -2.31%
2022 282.2383 285.9360 325.9160 243.1970 294.8690 0.61%
2021 251.5458 197.8880 312.5850 195.5470 293.0740 43.39%
2020 191.4522 200.1450 228.0560 139.7360 204.3890 2.37%
2019 175.5321 136.7560 201.2380 134.7060 199.6650 44.67%
2018 137.6283 123.5200 157.2070 123.5200 138.0100 9.64%
2017 122.4972 104.1260 142.7850 103.5820 125.8780 21.49%
2016 97.4219 83.2086 107.7210 77.6222 103.6150 22.50%
2015 88.2002 85.5029 95.2916 80.8330 84.5845 -1.60%
2014 78.1698 73.8288 88.4669 69.0684 85.9561 14.30%
2013 60.3188 50.9414 75.2362 48.8307 75.2003 52.45%
2012 44.4296 41.2074 51.2164 39.7691 49.3270 20.29%
2011 42.0719 39.4054 47.0472 34.9445 41.0058 2.95%
2010 34.4701 32.3523 39.8642 30.5963 39.8296 21.83%
2009 33.3217 37.9001 37.9001 29.8428 32.6934 -14.80%
2008 36.8286 38.4694 40.1697 28.9081 38.3705 -2.87%
2007 34.6236 28.8777 41.4846 28.2902 39.5048 36.99%
2006 29.3607 29.8981 34.2652 25.9179 28.8369 -0.06%
2005 22.0289 18.4752 29.6172 16.5627 28.8546 54.35%
2004 19.8121 18.3953 22.4079 14.9386 18.6946 2.14%
2003 16.6654 14.5466 19.9673 13.2230 18.3035 30.36%
2002 19.9208 25.5764 28.6879 10.7628 14.0411 -45.13%
2001 25.5175 23.5834 32.0634 22.3537 25.5908 6.33%
2000 22.2815 26.6605 29.3137 14.5100 24.0665 -11.99%
1999 25.9116 24.8950 31.0608 18.3073 27.3441 10.71%
1998 27.6686 25.4705 32.9968 22.8936 24.6999 -3.85%
1997 21.4364 17.6275 25.6896 17.5113 25.6896 44.56%
1996 15.0930 14.0609 18.3784 13.5686 17.7705 27.97%
1995 10.6496 8.5957 14.0609 8.5957 13.8869 61.56%
1994 8.6282 8.2858 9.3748 7.8338 8.5957 3.20%
1993 8.9880 8.9059 9.8150 8.0060 8.3288 -7.35%
1992 7.4432 6.3574 8.9891 6.3173 8.9891 41.40%
1991 5.8524 5.3182 6.4804 4.6078 6.3574 19.11%
1990 5.3538 6.2343 6.2343 4.0960 5.3374 -14.13%
1989 4.9242 3.9856 6.3630 3.9134 6.2159 53.87%
1988 3.7454 3.4085 4.1479 3.2101 4.0397 22.40%
1987 3.8321 3.9991 4.5131 2.9576 3.3003 -13.37%
1986 4.1403 3.7016 4.7295 3.7016 3.8098 2.05%
1985 3.2853 2.7412 3.7331 2.7412 3.7331 35.74%
1984 2.4304 2.9035 3.1380 1.9838 2.7502 -5.28%
1983 2.4670 1.9748 3.0298 1.9748 2.9035 45.70%
1982 1.6208 1.6772 2.1281 1.2894 1.9928 15.10%
1981 1.4969 1.2714 1.7313 1.2083 1.7313 36.17%
Sector Industry Market Cap Revenue
Finance Insurance Brokers $84.711B $15.698B
Aon plc is a multinational corporation that offers risk management services, insurance and reinsurance brokerage, human resource consulting and outsourcing services worldwide. As an insurance broker, Aon utilizes its resources to develop the individual as well as group insurance programs. It offers its services globally across personal lines, mid-market companies and multinational companies. Currently, following a major realignment of principal service lines the company reports through four revenue lines, namely, Commercial Risk Solutions, Reinsurance Solutions, Wealth Solutions, and Health Solutions.
Stock Name Country Market Cap PE Ratio
Marsh & McLennan (MMC) United States $114.360B 26.46
Arthur J Gallagher (AJG) United States $83.666B 32.40
Willis Towers Watson Public (WTW) United Kingdom $33.058B 19.42
Brown & Brown (BRO) United States $32.196B 29.32
Hannover Ruck SE (HVRRY) Germany $31.223B 12.77
Erie Indemnity (ERIE) United States $18.029B 36.51
Ryan Specialty Holdings (RYAN) United States $17.651B 37.66
Tiptree Financial (TIPT) United States $0.737B 11.37
EHealth (EHTH) United States $0.279B 0.00
Huize Holding (HUIZ) China $0.037B 41.00
Oxbridge Re Holdings (OXBR) Cayman Islands $0.030B 0.00
AIX (AIFU) China $0.020B 0.48