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AJG vs AON: Which Stock Is the Better Buy?
Arthur J. Gallagher & Co. and Aon plc side by side — fundamentals from SEC filings, refreshed nightly. Sector: Financial Services.
AI verdict — AJG vs AON, read from the filings
The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.
| Arthur J. Gallagher & Co. (AJG) | Aon plc (AON) | |
|---|---|---|
| Market cap | $65.2B | $78.4B |
| Revenue (latest FY) | $13.75B | $17.18B |
| Net income (latest FY) | $1.49B | $3.69B |
| Revenue growth (5y CAGR) | 14.4% | 9.2% |
| Net margin | 10.9% | 21.5% |
| Return on equity | 6.4% | 39.5% |
| P/E ratio | 41.2 | 20.2 |
| Dividend yield | 1.1% | 0.9% |
| Profitable years (of last 10) | 10 | 10 |
| Positive free cash flow | Yes | Yes |
See the full AJG vs AON breakdown
Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.
Open AJG's full financials → Open AON's full financials →Frequently asked questions
Which is bigger, AJG or AON?
Aon plc is larger by market capitalization — $78.4B versus $65.2B.
Which grows faster, AJG or AON?
Over the last five fiscal years, Arthur J. Gallagher & Co. grew revenue faster — 14.4%/yr versus 9.2%/yr, computed from SEC-filed statements.
Where does this data come from?
All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.