AON
Aon plc Financial Services - Insurance Brokerage Investor Relations →
Aon plc (AON) closed at $325.63 as of 2026-03-20, trading 0.2% above its 200-week moving average of $324.88. The stock moved further from the line this week, up from -1.0% last week. The 14-week RSI sits at 38, indicating neutral momentum.
Trading volume is running at 1.3x of its 14-week average, which is in the normal range. The balance between buying and selling volume (0.89 ratio) is neutral — neither side is clearly dominating.
Over the past 2341 weeks of data, AON has crossed below its 200-week moving average 32 times. On average, these episodes lasted 10 weeks. Historically, investors who bought AON at the start of these episodes saw an average one-year return of +17.3%.
With a market cap of $70.0 billion, AON is a large-cap stock. The company generates a free cash flow yield of 4.4%. Return on equity stands at 46.9%, indicating strong profitability. The stock trades at 7.5x book value.
Share count has increased 4.4% over three years, indicating dilution.
Over the past 33.2 years, a hypothetical investment of $100 in AON would have grown to $3871, compared to $2683 for the S&P 500. That represents an annualized return of 11.6% vs 10.4% for the index — confirming AON as a market-beating investment and the kind of quality company where buying during 200-week moving average touches has historically been rewarded.
Free cash flow has been growing at a 2.1% compound annual rate, with 4 consecutive years of positive cash generation.
Business Health
Annual financials — how the underlying business has performed over the past several years.
Cash Flow Free cash flow & net income ($M)
Revenue Annual revenue ($M) — business growth proxy
Total Debt Balance sheet debt ($M)
ROIC Return on invested capital (%)
FCF Yield Free cash flow / market cap (%) — Yartseva signal
Gross Margin Pricing power & competitive moat (%)
Shares Outstanding Buybacks vs dilution (millions)
Growth of $100: AON vs S&P 500
Monthly data normalized to $100 at start. Vertical dashed lines mark 200-week MA touches.
What Happens After AON Crosses Below the Line?
Across 21 historical episodes, buying AON when it crossed below its 200-week moving average produced an average return of +8.0% after 12 months (median +7.0%), compared to +4.5% for the S&P 500 over the same periods. 62% of those episodes were profitable after one year. After 24 months, the average return was +16.3% vs +11.0% for the index.
Each line shows $100 invested at the moment AON crossed below its 200-week MA. Bold blue = stock average. Gray dashed = S&P 500 average over same periods.
Historical Touches
AON has crossed below its 200-week MA 32 times with an average 1-year return of +17.3% after recovery.
| Crossed Below | Recovered | Weeks | Max Depth | 1-Year Return | Return Since Touch |
|---|---|---|---|---|---|
| Aug 1981 | Sep 1981 | 1 | 3.2% | +16.4% | +28660.6% |
| Sep 1981 | Sep 1981 | 1 | 2.6% | +14.4% | +28472.6% |
| Mar 1982 | Mar 1982 | 1 | 0.5% | +61.8% | +27052.8% |
| Mar 1982 | Apr 1982 | 1 | 0.0% | +63.3% | +26885.2% |
| Jun 1982 | Jul 1982 | 5 | 11.4% | +73.2% | +27052.8% |
| Aug 1982 | Aug 1982 | 2 | 10.7% | +57.1% | +27744.6% |
| Oct 1987 | Feb 1988 | 15 | 13.5% | +27.4% | +10408.9% |
| Apr 1988 | May 1988 | 6 | 4.8% | +41.5% | +9788.7% |
| Oct 1990 | Oct 1990 | 1 | 1.4% | +32.7% | +7618.5% |
| Sep 1999 | Oct 1999 | 5 | 17.9% | +27.4% | +1501.7% |
| Jan 2000 | May 2000 | 19 | 36.1% | +9.2% | +1502.4% |
| Jun 2000 | Jul 2000 | 5 | 10.8% | +11.9% | +1363.6% |
| Oct 2000 | Feb 2001 | 14 | 14.1% | +31.3% | +1460.6% |
| Feb 2001 | Feb 2001 | 1 | 5.6% | +5.8% | +1299.5% |
| Mar 2001 | Jul 2001 | 20 | 9.3% | +2.0% | +1237.7% |
| Nov 2001 | Nov 2001 | 2 | 1.9% | -45.9% | +1218.9% |
| Dec 2001 | Dec 2001 | 2 | 3.4% | -44.2% | +1199.0% |
| Jan 2002 | Mar 2002 | 9 | 6.5% | -39.2% | +1199.4% |
| May 2002 | Mar 2004 | 95 | 53.6% | -20.7% | +1243.5% |
| Apr 2004 | May 2004 | 4 | 6.6% | -18.0% | +1535.8% |
| Jul 2004 | Aug 2004 | 7 | 7.8% | -1.3% | +1475.6% |
| Oct 2004 | May 2005 | 31 | 25.3% | +46.9% | +1838.7% |
| Jun 2005 | Jun 2005 | 1 | 0.7% | +43.6% | +1595.3% |
| Oct 2008 | Oct 2008 | 1 | 4.3% | +18.0% | +1024.6% |
| Jan 2009 | Feb 2009 | 1 | 1.7% | +6.6% | +953.7% |
| Apr 2009 | Jul 2009 | 13 | 7.9% | +18.5% | +969.0% |
| Oct 2009 | Nov 2009 | 1 | 2.5% | +4.8% | +902.3% |
| Nov 2009 | Feb 2010 | 11 | 4.9% | +6.7% | +885.3% |
| May 2010 | Nov 2010 | 24 | 9.5% | +33.6% | +863.1% |
| Sep 2011 | Sep 2011 | 1 | 4.3% | +33.3% | +838.4% |
| Feb 2026 | Feb 2026 | 1 | 0.6% | N/A | +1.2% |
| Mar 2026 | Ongoing | 2+ | 1.0% | Ongoing | +1.3% |
| Average | 10 | — | +17.3% | — |
Frequently Asked Questions
Is AON below its 200-week moving average?
No. Aon plc (AON) is currently 0.2% above its 200-week moving average of $324.88. It would need to fall to $324.88 to cross below the line.
What is AON's 200-week moving average price?
Aon plc's 200-week moving average is $324.88 as of 2026-03-20. This is the average weekly closing price over roughly the last 4 years, and it acts as a long-term trend line. When a stock drops below this level, it can signal that the price has fallen far enough from the long-term trend to attract value-oriented investors.
What happens when AON drops below its 200-week moving average?
AON has crossed below its 200-week moving average 32 times in our data. On average, buying at that moment produced a one-year return of +17.3%. These dips have historically been decent entry points. These episodes lasted 10 weeks on average.
Is AON a good value right now?
Here's what our data says about AON as of 2026-03-20: The stock is above its 200-week moving average, so it doesn't currently meet our primary signal. The 14-week RSI is 38. Free cash flow yield is 4.4%. Return on equity is 46.9%. Price-to-book is 7.5x. This is not a buy or sell recommendation — always do your own research.
How does AON compare to the S&P 500?
Over the past 33.2 years, $100 invested in AON would have grown to $3871, compared to $2683 for the S&P 500. That's 11.6% annualized vs 10.4% for the index. AON has outperformed the broader market over this period.
Does AON pay a dividend?
Yes. Aon plc currently pays a dividend yield of 92.00%.
Not financial advice. This is an educational tool. Past performance does not guarantee future results. Do your own research before making investment decisions.
Data as of week of 2026-03-20