Market Cap:
$79.12B+$265.22M(+0.34%)Summary
- As of today (October 8, 2025), AON market cap is $79.12 billion, with a rise of +$265.22 million (+0.34%) during the most recent trading session on October 7, 2025.
- Over the past year, AON market cap has increased by +$4.66 billion (+6.26%).
- AON market cap is now -10.51% below its all-time high of $88.41 billion.
Performance
AON Market Cap Chart
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Highlights
Range
Related metrics
Market Cap Formula
Market Cap = Price ✕ Shares Outstanding
AON Market Cap Trends
| PeriodPeriod | Market CapMarket Cap | PricePrice | Shares OutstandingShares Outstanding | Enterprise ValueEnterprise Value |
|---|---|---|---|---|
| 1D1 Day | +0.3% | +0.3% | -0.0% | +0.3% |
| 1M1 Month | -1.0% | -1.0% | - | -0.8% |
| 3M3 Months | +3.8% | +3.9% | - | +3.1% |
| 6M6 Months | +0.5% | +0.7% | - | -0.0% |
| YTDYTD | +2.0% | +2.2% | - | +1.9% |
| 1Y1 Year | +6.3% | +6.7% | -0.4% | +5.2% |
| 5Y5 Years | +65.7% | +76.1% | -5.9% | +73.1% |
AON Market Cap Highs & Lows
| PeriodPeriod | HighHigh | Current vs Highvs High | LowLow | Current vs Lowvs Low | |
|---|---|---|---|---|---|
| 1M | 1-Month | $80B | -1.4% | $76B | +4.4% |
| 3M | 3-Month | $81B | -2.2% | $76B | +4.5% |
| 6M | 6-Month | $83B | -4.7% | $73B | +9.1% |
| 1Y | 1-Year | $88B | -10.5% | $73B | +9.1% |
| 3Y | 3-Year | $88B | -10.5% | $56B | +40.7% |
| 5Y | 5-Year | $88B | -10.5% | $41B | +92.3% |
| All-Time | All-Time | $88B | -10.5% | $935M | +8366.1% |
AON Market Cap History
| Date | Value |
|---|---|
| 2025 | $79B(+2.0%) |
| 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%) |
| Date | Value |
|---|---|
| 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 $79.12B
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 +$1.54B (+1.99%) 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 +$4.66B (+6.26%)