About Aon plc (AON)
Aon plc is a Insurance Brokers company operating in the Financial Services sector.
AON trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .
Key Statistics
- Current Price
- $321.67
- Market Cap
- $68.24B
- 52-Week High
- $382.34
- 52-Week Low
- $266.33
- Sector
- Financial Services
- Industry
- Insurance Brokers
$1,000 Invested in Aon plc (AON)
How much would $1,000 invested in AON be worth today?
What would $1,000 invested in AON 1 year ago be worth today?
A $1,000 investment in Aon plc (AON) in 2025 would be worth $985 as of November 2026, representing a -1.5% total return.
What would $1,000 invested in AON 3 years ago be worth today?
A $1,000 investment in Aon plc (AON) in 2023 would be worth $1,028 as of November 2026, representing a +2.8% total return.
What would $1,000 invested in AON 5 years ago be worth today?
A $1,000 investment in Aon plc (AON) in 2021 would be worth $1,042 as of November 2026, representing a +4.2% total return.
What would $1,000 invested in AON 10 years ago be worth today?
A $1,000 investment in Aon plc (AON) in 2016 would be worth $3,208 as of November 2026, representing a +220.8% total return.
What would $1,000 invested in AON at IPO be worth today?
A $1,000 investment in Aon plc (AON) at IPO would be worth $299,290 as of November 2026, representing a +29829.0% total return.
Monthly Returns Heatmap
Over the past 46+ years (556 months), Aon plc (AON) has averaged a monthly return of +1.29% with a median return of +1.50%. The stock had 330 positive months (59%) and 221 negative months (40%). The best month in AON's history was March 2000 with a +53.1% return, while the worst was January 2000 at -35.3%. Historically, February tends to be the strongest month (averaging +3.7%), and January the weakest (-1.2%).
AON's longest winning streak was 9 consecutive months of gains, while its longest losing streak was 6 consecutive months of losses. The best full year was 1995 with a cumulative return of +49.7%, and the worst was 2002 at -54.4%.
Annual Returns
Over 46 years of trading history, Aon plc (AON) has delivered an average annual return of +15.71% with a median return of +12.51%. The compound annual growth rate (CAGR) is +13.25%. The stock posted gains in 32 years (70%) and losses in 14 years (30%).
AON's best year was 1995 with a +61.56% gain, while the worst was 2002 at -45.13%. The longest streak of consecutive positive years was 7, and the longest losing streak was 2 years. AON achieved double-digit gains (10%+) in 24 years. It suffered double-digit losses in 5 years.
| Year | Return | Start | End |
|---|---|---|---|
| 2026 | -8.40% | $351.15 | $321.67 |
| 2025 | -1.16% | $355.26 | $351.15 |
| 2024 | +24.45% | $285.46 | $355.26 |
| 2023 | -2.31% | $292.19 | $285.46 |
| 2022 | +0.61% | $290.42 | $292.19 |
| 2021 | +43.39% | $202.54 | $290.42 |
| 2020 | +2.37% | $197.85 | $202.54 |
| 2019 | +44.68% | $136.76 | $197.85 |
| 2018 | +9.94% | $124.39 | $136.76 |
| 2017 | +21.49% | $102.39 | $124.39 |
| 2016 | +22.50% | $83.58 | $102.39 |
| 2015 | -1.60% | $84.94 | $83.58 |
| 2014 | +14.30% | $74.31 | $84.94 |
| 2013 | +52.45% | $48.74 | $74.31 |
| 2012 | +20.30% | $40.52 | $48.74 |
| 2011 | +2.95% | $39.36 | $40.52 |
| 2010 | +21.83% | $32.31 | $39.36 |
| 2009 | -14.80% | $37.91 | $32.31 |
| 2008 | -2.87% | $39.04 | $37.91 |
| 2007 | +36.99% | $28.49 | $39.04 |
| 2006 | -0.06% | $28.51 | $28.49 |
| 2005 | +54.35% | $18.47 | $28.51 |
| 2004 | +2.14% | $18.09 | $18.47 |
| 2003 | +30.36% | $13.87 | $18.09 |
| 2002 | -45.13% | $25.29 | $13.87 |
| 2001 | +6.33% | $23.78 | $25.29 |
| 2000 | -11.99% | $27.02 | $23.78 |
| 1999 | +10.71% | $24.41 | $27.02 |
| 1998 | -3.85% | $25.38 | $24.41 |
| 1997 | +44.56% | $17.56 | $25.38 |
| 1996 | +27.96% | $13.72 | $17.56 |
| 1995 | +61.56% | $8.49 | $13.72 |
| 1994 | +3.19% | $8.23 | $8.49 |
| 1993 | -7.35% | $8.88 | $8.23 |
| 1992 | +41.40% | $6.28 | $8.88 |
| 1991 | +19.11% | $5.28 | $6.28 |
| 1990 | -14.13% | $6.14 | $5.28 |
| 1989 | +57.40% | $3.90 | $6.14 |
| 1988 | +28.66% | $3.03 | $3.90 |
| 1987 | -13.37% | $3.50 | $3.03 |
| 1986 | +2.05% | $3.43 | $3.50 |
| 1985 | +35.74% | $2.53 | $3.43 |
| 1984 | -0.48% | $2.54 | $2.53 |
| 1983 | +55.08% | $1.64 | $2.54 |
| 1982 | +15.10% | $1.42 | $1.64 |
| 1981 | +36.17% | $1.05 | $1.42 |
Frequently Asked Questions: AON
What sector is AON in? ▼
AON operates in the Financial Services sector, specifically in the Insurance Brokers industry. This sector includes banks, insurance companies, asset managers, and fintech companies.
How has AON performed historically? ▼
Over 46 years of trading history, AON has posted gains in 32 years (70% of the time). The best year was 1995 with a +61.6% return. Past performance does not guarantee future results.
How can I invest in AON? ▼
You can invest in AON through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold AON.
Last updated: 11/1/2026