Aon (AON) Stock Buyback History
TTM buyback yield 1.32% · Shareholder yield (TTM) 1.32%.

Aon
AON
TTM buyback yield
1.32%
Shareholder yield (TTM)
1.32%
5Y share count change
-7.1%
TTM buyback spend
$1.00B
SBC coverage (TTM)
2.69x
Diluted vs basic shares (annual)
Weighted average shares from the income statement: diluted (EPS denominator and typical buyback-yield basis) compared with basic.
Shares outstanding (annual)
Year-over-year change in diluted weighted average shares (industry-standard for EPS and per-share capital return). Green is fewer shares vs the prior fiscal year; red is growth (dilution). The earliest year shown has no prior year to compare.
Dividend & buyback yield
Buybacks vs stock-based compensation
TTM coverage: 2.69x (buybacks ÷ SBC). Bars are fiscal-year totals.
Buyback spending history
| Year | Buybacks | SBC | Net | Shares (dil.) | YoY shares | Buyback yield |
|---|---|---|---|---|---|---|
| 2025 | $1.00B | $0.00 | $1.00B | 0.22B | 1.9% | 1.32% |
| 2024 | $1.00B | $474.00M | $526.00M | 0.21B | 3.7% | 1.29% |
| 2023 | $2.70B | $438.00M | $2.26B | 0.20B | -3.8% | 4.63% |
| 2022 | $3.20B | $397.00M | $2.81B | 0.21B | -5.7% | 5.14% |
| 2021 | $3.54B | $449.00M | $3.09B | 0.23B | -3.0% | 5.38% |
| 2020 | $1.76B | $312.00M | $1.45B | 0.23B | -3.1% | 3.64% |
| 2019 | $1.96B | $317.00M | $1.64B | 0.24B | -2.6% | 4.01% |
| 2018 | $1.47B | $338.00M | $1.13B | 0.25B | -5.3% | 4.17% |
| 2017 | $2.40B | $319.00M | $2.08B | 0.26B | -3.6% | 7.12% |
| 2016 | $1.26B | $331.00M | $926.00M | 0.27B | -4.8% | 4.24% |
| 2015 | $1.55B | $340.00M | $1.21B | 0.28B | -5.3% | 6.10% |
| 2014 | $2.25B | $328.00M | $1.92B | 0.30B | -5.0% | 8.27% |
| 2013 | $1.10B | $300.00M | $802.00M | 0.32B | -5.2% | 4.29% |
| 2012 | $1.13B | $212.00M | $913.00M | 0.33B | -2.4% | 6.30% |
| 2011 | $828.00M | $235.00M | $593.00M | 0.34B | 14.4% | 5.35% |
| 2010 | $250.00M | $221.00M | $29.00M | 0.30B | 2.4% | 1.59% |
| 2009 | $478.00M | $209.00M | $269.00M | 0.29B | -3.3% | 4.52% |
| 2008 | $1.74B | $248.00M | $1.49B | 0.30B | -6.8% | 13.40% |
| 2007 | $523.00M | $204.00M | $319.00M | 0.32B | -5.6% | 3.61% |
| 2006 | $966.00M | $0.00 | $966.00M | 0.34B | 0.2% | 9.11% |
| 2005 | $75.00M | $0.00 | $75.00M | 0.34B | 1.5% | 0.64% |
| 2004 | $0.00 | $0.00 | $0.00 | 0.34B | 5.9% | — |
| 2003 | $6.00M | $0.00 | $6.00M | 0.32B | 10.5% | 0.08% |
| 2002 | $97.00M | $0.00 | $97.00M | 0.29B | 5.8% | 1.63% |
| 2001 | $0.00 | $0.00 | $0.00 | 0.27B | 2.6% | — |
| 2000 | $59.00M | $0.00 | $59.00M | 0.26B | 0.8% | — |
| 1999 | $66.00M | $0.00 | $66.00M | 0.26B | 1.3% | — |
| 1998 | $18.00M | $0.00 | $18.00M | 0.26B | 1.3% | — |
| 1997 | $136.00M | $0.00 | $136.00M | 0.26B | 1.1% | — |
| 1996 | $18.00M | $0.00 | $18.00M | 0.25B | — | — |
| 1995 | $121.80M | $0.00 | $121.80M | — | — | — |
| 1994 | $132.00M | $0.00 | $132.00M | — | — | — |
| 1993 | $11.40M | $0.00 | $11.40M | — | — | — |
| 1992 | $6.90M | $0.00 | $6.90M | — | — | — |
| 1991 | $33.20M | $0.00 | $33.20M | — | — | — |
| 1990 | $19.00M | $0.00 | $19.00M | — | — | — |
Buybacks vs dividends (share of cash returned)
Buyback capacity (TTM)
TTM buybacks vs headroom (FCF − dividends, TTM)39% of headroom
Headroom $2.59B (TTM FCF − TTM dividends, clamped at zero).
Frequently asked questions
Does Aon buy back its own stock?
- Yes, Aon (AON) has repurchased shares in recent periods. See the history table and charts on this page for amounts and trends.
How much does Aon spend on share buybacks?
- Trailing twelve months (TTM) buyback spend is about $1.00B (sum of the last four quarterly cash-flow periods in our data). Figures are illustrative; verify in filings.
What is Aon's buyback yield?
- TTM buyback yield is about 1.32% (TTM buyback spend divided by market cap at the latest quarter-end in our data).
What is Aon's shareholder yield?
- Shareholder yield combines dividend yield and buyback yield. For the latest period we show approximately 1.32% combined (TTM-based where available).
Is Aon diluting shareholders?
- Compare stock-based compensation (SBC) to buybacks in the chart above. Net effect varies by year; see annual buyback vs SBC bars and the history table.
How has Aon's share count changed?
- Diluted weighted average shares changed by about -7.1% over roughly five fiscal years (annual income statement data).