Aon Plc (AON)

NYSE · Financial · Insurance Brokers · Ireland

Aon Plc is a large cap company (market value between $10 billion and $200 billion) in the Insurance Brokers industry.

Aon is a global professional services firm providing insurance brokerage, risk consulting, reinsurance solutions, health and benefits advisory, retirement consulting, and investment services. The company operates through Risk Capital and Human Capital segments, serving organizations across various industries worldwide. Its revenues derive primarily from commissions, fees, and compensation from insurance and reinsurance companies for services rendered.

From its FY2025 annual report (Form 10-K)

Intrinsic value, DCF valuation, financial health and value investing analysis for the Aon Plc stock.

Our verdict on AON

Overvalued: intrinsic value $183.57 per share, market price $289.74, margin of safety -57.8% (as of 2026-10-19).

Book value at 2.50x, the multiple a 44.9% return on equity justifies, blended with earnings, values the shares at $183.57; the price of $289.74 is 58% above that value.

Leak Score: 47/100 on 12 of 12 signals (On Watch).

ETFs with the most weight in AON

17 more funds hold it; the full list is part of the paid plan.

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Is AON undervalued or overvalued?

AON is overvalued (as of the 2026-10-19 close). Book value at 2.50x, the multiple a 44.9% return on equity justifies, blended with earnings, values the shares at $183.57; the price of $289.74 is 58% above that value.

What is the intrinsic value of AON?

$183.57 per share (as of the 2026-10-19 close), against a market price of $289.74. That is a margin of safety of -57.8%. The value is the average of the valuation methods that apply to this company, recomputed every night after the US close.

What return is priced into AON stock?

The price needs roughly the return the bank already earns. Return on equity the price needs: 39.9%. Return on equity it earns: 44.9%.

What is Aon Plc's Leak Score?

47 out of 100, which we rate "On Watch", on 12 of 12 value investing signals.