Aon plc (AON) is a publicly traded company in the Financial Services — Insurance - Brokers industry listed on NYSE. This overview shows the latest price, key valuation ratios, profitability metrics and financial-health indicators used by fundamental investors.
Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments.
Analysis Summary
Aon plc reported revenue of $17.18B in the most recent fiscal year, growing at a 5-year CAGR of 9.2%. Net income reached $3.69B, with a 13.4% 5-year CAGR.
Trailing-twelve-month margins: gross margin 83.1%, operating margin 27.2%, net margin 22.3%. Free cash flow grew at 4.0% CAGR over 5 years.
At the current price of $300.57, AON trades at a P/E of 16.61 and an ROE of 42.56%. Market capitalisation stands at $63.8B, placing it among large-cap names.
Balance sheet quality for AON: current ratio of 1.1, net debt of $13.73B. A debt-to-equity below 1.0 typically signals conservative capital structure, while a current ratio above 1.5 indicates comfortable short-term liquidity.
Cash flow quality is decent: free cash flow of $3.22B represents 87% conversion of reported net income. High conversion (above 90%) suggests earnings translate cleanly into cash; lower conversion may indicate working capital tightness or accounting timing differences.
Price
| Price | $300.57 |
| Market Cap | $63.8B |
| Exchange | NYSE |
| Country | IE |
Valuation Ratios
| P/E Ratio | 16.61 |
| Price / Book | 6.70 |
| EV / EBITDA | 12.71 |
| Dividend Yield | 1.03% |
Profitability
| Return on Equity | 42.56% |
| Return on Invested Capital | 13.22% |
| Return on Assets | 7.34% |
| Gross Margin | 83.12% |
| Operating Margin | 27.21% |
| Net Margin | 22.27% |
Financial Health
| Debt / Equity | 1.64 |
| Current Ratio | 1.03 |
| Piotroski F-Score | 7 |
| Altman Z-Score | 1.78 |
What to look at in Insurance
Insurers earn in 2 ways: underwriting well (combined ratio) and investing the float. Buffett built Berkshire that way.
- Op Margin 5y (Combined Ratio proxy) — Combined ratio proxy when FMP does not expose it. ≥10% 5y average = underwriting discipline (CR <100%)
- Book Value / Share growth — How Buffett measures Berkshire. The real value shareholders accumulate
- Debt / Equity — Leveraged insurers fail fast under catastrophes
- P/B (Price / Book) — Insurers are valued by book multiple. Here it is crossed with ROE (quality × valuation)
- Dividend growth streak — Consecutive years raising dividend per share — solid insurers stack decades
Peer Comparison
| Symbol | Company | Market Cap | P/E | P/B | ROE |
|---|---|---|---|---|---|
| AON | Aon plc | $63.8B | 16.61 | 6.70 | 42.6% |
| MFG | Mizuho Financial Group, Inc. | $133.2B | 15.46 | 1.83 | 12.3% |
| CM | Canadian Imperial Bank of Commerce | $104.7B | 14.64 | 2.08 | 15.4% |
| BNS | The Bank of Nova Scotia | $113.3B | 16.81 | 1.78 | 11.4% |
| BK | The Bank of New York Mellon Corporation | $97.4B | 16.44 | 2.20 | 14.2% |
| ING | ING Groep N.V. | $103.9B | 13.75 | 1.81 | 13.4% |
| APO | Apollo Global Management, Inc. | $71.7B | 25.97 | 3.38 | 8.6% |
| AJG | Arthur J. Gallagher & Co. | $62.6B | 40.26 | 2.66 | 6.7% |
Price Performance
| 1 month | -12.42% |
| 3 months | -5.40% |
| Year-to-date | -14.82% |
| 1 year | -16.04% |
| 3 years | -11.42% |
| 5 years | +3.92% |
52-Week Range
| 52-week High | $382.34 |
| 52-week Low | $298.48 |
| Avg Volume (90d) | 1.5M |
Dividend History
| Date | Amount | Yield |
|---|---|---|
| 2026-08-03 | $0.8200 | 1.09% |
| 2026-05-01 | $0.8200 | 1.09% |
| 2026-02-02 | $0.7450 | 0.99% |
| 2025-11-03 | $0.7450 | 0.99% |
| 2025-08-01 | $0.7450 | 0.99% |
| 2025-05-01 | $0.7450 | 0.99% |
| 2025-02-03 | $0.6750 | 0.90% |
| 2024-11-01 | $0.6750 | 0.90% |
| 2024-08-01 | $0.6750 | 0.90% |
| 2024-04-30 | $0.6750 | 0.90% |
Related companies: AJG · APO · BK · BNS · CM · ING · MFG
Explore sector: Financial Services · Insurance - Brokers
More sections of AON: Financials · Valuation · Statistics · Estimates · Technical · Ownership · News · Events
Discover more: Radar — undervalued stock signals · Investment Academy — learn to analyze stocks