Aon plc (AON) stock — the fundamentals (P/E, market cap, valuation) and every material event, decoded in plain English.
Key numbers for Aon plc (AON): P/E ratio, market cap, profit margins, returns, and whether the stock looks cheap or expensive versus its own 5-year range.
AllSight quality score: 52/100 — a percentile rank of Aon plc’s fundamentals against Finance & Real Estate peers, weakest on valuation. A quality ranking, not a price prediction.
| Market cap | $58.5B |
| P / E | 15.0× |
| P / S | 3.3× |
| EV / EBITDA | 15.1× |
| Gross margin | 100.0% |
| Operating margin | 26.5% |
| Net margin | 22.6% |
| Return on equity | 40.8% |
| ROIC | 15.4% |
| Revenue growth | 4.9% |
| Debt / equity | 1.6× |
| Dividend yield | 1.1% |
Is Aon plc overvalued? P/E looks undervalued vs its 5-year range; P/S looks undervalued vs its 5-year range; EV/EBITDA looks undervalued vs its 5-year range; P/B looks undervalued vs its 5-year range.
Independent of the events above — derived from Aon plc’s own financial statements and shown as context, never as advice.
About AllSight · Editorial standards & method · Contact