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Aon plc (AON) Market Cap

Market Cap:

$72.82B-$780.57M(-1.06%)
October 24, 2025

Summary

  • As of today, AON market cap is $72.82 billion, with a fall of -$780.57 million (-1.06%) during the most recent trading session on October 24, 2025.
  • Over the past year, AON market cap has dropped by -$4.35 billion (-5.64%).
  • AON market cap is now -17.63% below its all-time high of $88.41 billion.

Performance

AON Market Cap Chart

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Highlights

Range

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Market Cap Formula

Market Cap = Price ✕ Shares Outstanding

AON Market Cap Trends

PeriodPeriodMarket CapMarket CapPricePriceShares OutstandingShares OutstandingEnterprise ValueEnterprise Value
1D1 Day-1.1%-1.1%-0.0%-0.9%
1M1 Month-4.5%-4.5%--3.7%
3M3 Months-5.3%-5.3%--4.3%
6M6 Months-7.6%-7.5%--6.7%
YTDYTD-6.1%-6.0%--4.8%
1Y1 Year-5.6%-5.4%-0.3%-4.5%
5Y5 Years+53.3%+62.9%-5.9%+62.4%

AON Market Cap Highs & Lows

PeriodPeriodHighHighCurrent vs Highvs HighLowLowCurrent vs Lowvs Low
1M1-Month$79B-8.0%$73Bat low
3M3-Month$81B-10.0%$73Bat low
6M6-Month$81B-10.3%$73B+0.4%
1Y1-Year$88B-17.6%$73B+0.4%
3Y3-Year$88B-17.6%$57B+27.4%
5Y5-Year$88B-17.6%$41B+77.0%
All-TimeAll-Time$88B-17.6%$935M+7692.4%

AON Market Cap History

DateValue
2025
$73B(-6.1%)
2024
$78B(+34.2%)
2023
$58B(-6.2%)
2022
$62B(-4.5%)
2021
$65B(+35.5%)
2020
$48B(-1.5%)
2019
$48B(+38.5%)
2018
$35B(+5.2%)
2017
$33B(+13.5%)
2016
$29B(+17.5%)
2015
$25B(-6.3%)
2014
$27B(+5.3%)
2013
$25B(+45.9%)
2012
$17B(+13.7%)
2011
$15B(-0.6%)
2010
$15B(+49.7%)
2009
$10B(-17.2%)
2008
$12B(-15.1%)
2007
$15B(+37.1%)
2006
$11B(-8.3%)
2005
$12B(+52.8%)
DateValue
2004
$8B(+0.6%)
2003
$8B(+45.8%)
2002
$5B(-46.1%)
2001
$10B(+6.8%)
2000
$9B(-12.7%)
1999
$10B(+8.9%)
1998
$9B(-5.8%)
1997
$10B(+45.0%)
1996
$7B(+26.6%)
1995
$5B(+62.5%)
1994
$3B(+2.5%)
1993
$3B(-5.4%)
1992
$3B(+33.9%)
1991
$3B(+14.3%)
1990
$2B(-17.7%)
1989
$3B(+54.9%)
1988
$2B(+20.0%)
1987
$1B(-14.9%)
1986
$2B(+3.4%)
1985
$2B(+36.8%)
1984
$1B

FAQ

  • What is Aon plc market cap?
  • What is the all-time high market cap for Aon plc?
  • What is AON market cap year-to-date change?
  • What is Aon plc market cap year-on-year change?

What is Aon plc market cap?

The current market cap of AON is $72.82B

What is the all-time high market cap for Aon plc?

Aon plc all-time high market cap is $88.41B

What is AON market cap year-to-date change?

Aon plc market cap has changed by -$4.75B (-6.13%) since the beginning of the year

What is Aon plc market cap year-on-year change?

Over the past year, AON market cap has changed by -$4.35B (-5.64%)
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