Aon - 41 Year Stock Price History | AON

The latest closing stock price for Aon as of March 07, 2025 is 403.09.

  • An investor who bought $1,000 worth of Aon stock at the IPO in 1984 would have $110,078 today, roughly 110 times their original investment - a 12.17% compound annual growth rate over 41 years.
  • 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 2.5% above the current share price.
  • The Aon 52-week low stock price is 268.06, which is 33.5% below the current share price.
  • The average Aon stock price for the last 52 weeks is 338.74.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Aon - 41 Year Stock Price History | AON

  • An investor who bought $1,000 worth of Aon stock at the IPO in 1984 would have $110,078 today, roughly 110 times their original investment - a 12.17% compound annual growth rate over 41 years.
  • 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 2.5% above the current share price.
  • The Aon 52-week low stock price is 268.06, which is 33.5% below the current share price.
  • The average Aon stock price for the last 52 weeks is 338.74.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.