$1,000 in Aon plc Class A Ordinary Shares (Ireland) in 2009 → $9,169 today
If you'd invested $1,000 in Aon plc Class A Ordinary Shares (Ireland) (AON) on January 1, 2009 — at the December 2008 month-end close of $38.00 — and held to the latest close (2026-08-), you'd have $9,169. That's a +816.9% total return — beating the S&P 500, where the same $1,000 became $8,534.
Nearby years: 2005 · 2006 · 2007 · 2008 · 2010 · 2011 · 2012 · 2013 all years →
FAQ
How much is $1,000 invested in AON in 2009 worth today?
$1,000 invested in Aon plc Class A Ordinary Shares (Ireland) (AON) at the month-end close of 2008-12- would be worth $9,169 at the latest month-end close (2026-08-), a total return of +816.9% with dividends reinvested.
Did $1,000 in AON in 2009 beat the market?
Over the same span, $1,000 in the S&P 500 index would be worth $8,534 — so Aon plc Class A Ordinary Shares (Ireland) (AON) beat the index by +7.4%.
What does "month-end close" mean for this calculation?
The scenario invests at the December 2008 month-end close (the price entering 2009) and values the position at the most recent month-end close (2026-08-). Intra-month extremes are shown on the AON calculator page.
Is the 2009–2026 return in AON typical?
No single year is typical. AON's best calendar-year return since 1980 was about +61.5%, and its worst was -45.1%.
Methodology
Aon plc Class A Ordinary Shares (Ireland) (AON) total-return data from January 2009 through the latest month-end close (2026-08-).
The entry price is the 2008 December month-end close and the exit is the latest available month-end close, both from adjusted (split and dividend) Yahoo Finance historical data.
Month-end resolution, no taxes or fees, and history never guarantees the future. For exact-date precision (including buying at a panic low), use the AON calculator page.
Compute your own AON scenario
Data: Yahoo Finance. As of 2026-08-. Not financial advice.