Stocks / ACT vs AON

ACT vs AON: Which Stock Is the Better Buy?

Enact Holdings, Inc. and Aon plc side by side — fundamentals from SEC filings, refreshed nightly. Sector: Financial Services.

AON is the larger company ($76.5B vs $5.9B). On the fundamentals, AON grows revenue faster (9.2% vs 2.2%); ACT earns a higher net margin (54.6% vs 21.5%); AON has the stronger return on equity (39.5% vs 12.6%). On the filings, AON carries fewer potential red flags (0 vs 1). Full numbers below — the stronger figure on each row is in green.

AI verdict — ACT 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.

 Enact Holdings, Inc. (ACT)Aon plc (AON)
Market cap$5.9B$76.5B
Revenue (latest FY)$1.24B$17.18B
Net income (latest FY)$674.24M$3.69B
Revenue growth (5y CAGR)2.2%9.2%
Net margin54.6%21.5%
Return on equity12.6%39.5%
P/E ratio9.219.9
Dividend yield2.1%0.9%
Profitable years (of last 10)710
Positive free cash flowYes

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Use the filing period and source shown by each tool before treating two figures as comparable.

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See the full ACT 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 ACT's full financials →   Open AON's full financials →

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Frequently asked questions

Which is bigger, ACT or AON?

Aon plc is larger by market capitalization — $76.5B versus $5.9B.

Which grows faster, ACT or AON?

Over the last five fiscal years, Aon plc grew revenue faster — 9.2%/yr versus 2.2%/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.

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