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Aon plc AON Ratios & Valuation

Q1 '26Q4 '25Q3 '25Q2 '25Q1 '25
Profitability
Operating margin26.3%+1.0pp25.3%+0.5pp24.8%+0.7pp24.1%+0.7pp23.4%-1.0pp
Net margin22.5%+1.0pp21.5%+5.5pp16%+0.4pp15.5%0.0pp15.6%-1.3pp
Returns
Return on equity46.8%-0.9pp47.8%+9.4pp38.3%+0.3pp38%
Return on invested capital15.1%+0.5pp14.5%+0.1pp14.5%+0.9pp13.6%-1.5pp15.1%-3.0pp
Efficiency
Asset turnover0.3×0.0×0.3×0.0×0.3×0.0×0.3×0.0×0.4×0.0×
Liquidity
Current ratio1.1×0.0×1.1×+0.1×1.1×0.0×0.0×0.0×
Leverage
Debt-to-equity1.6×-0.2×1.7×-0.5×2.2×-0.1×2.3×-0.3×2.6×-0.3×
Net debt / EBITDA2.9×-0.3×3.3×-0.4×3.7×-0.3×-0.3×4.3×+0.1×
Per Share
Book value per share$45.65+6.0%$43.08+17.6%$36.64+1.5%$36.09+12.3%$32.14+11.6%
Valuation
Market capitalization$69.16B-8.8%$75.85B-1.4%$76.89B-1.3%$77.89B-9.6%$86.2B+11.0%
Price / earnings17.5×-3.0×20.5×-7.8×28.3×-1.6×29.9×-3.9×33.8×+4.6×
Price / sales-0.5×4.4×-0.1×4.5×-0.1×4.6×-0.6×5.3×+0.3×
Price / book-1.1×8.1×-1.6×9.7×-0.2×9.9×-2.4×12.3×-0.4×
EV / EBITDA17.4×-2.6×20×-1.1×21.1×-1.4×22.5×-3.3×25.8×+2.3×
Dividend yield0.9%+0.1pp0.8%0.0pp0.8%0.0pp0.8%+0.1pp0.7%0.0pp

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Questions, answered.

Where do Aon plc's ratios come from?
Every ratio is computed from Aon plc's SEC filings — trailing-twelve-month flows over period-end balances. Valuation multiples combine those fundamentals with market data, recomputed each period. Switch between quarterly, annual, and TTM, or open any ratio for its full history and peer comparisons.