Stocks / AON vs MCO

AON vs MCO: Which Stock Is the Better Buy?

Aon plc and Moody's Corporation side by side — fundamentals from SEC filings, refreshed nightly. Sector: Financial Services.

MCO is the larger company ($82.8B vs $76.5B). On the fundamentals, AON grows revenue faster (9.2% vs 7.5%); MCO earns a higher net margin (31.9% vs 21.5%); MCO has the stronger return on equity (60.7% vs 39.5%). Neither shows an obvious red flag in the filings. Full numbers below — the stronger figure on each row is in green.

AI verdict — AON vs MCO, 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.

 Aon plc (AON)Moody's Corporation (MCO)
Market cap$76.5B$82.8B
Revenue (latest FY)$17.18B$7.72B
Net income (latest FY)$3.69B$2.46B
Revenue growth (5y CAGR)9.2%7.5%
Net margin21.5%31.9%
Return on equity39.5%60.7%
P/E ratio19.930.4
Dividend yield0.9%0.9%
Profitable years (of last 10)1010
Positive free cash flowYesYes

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See the full AON vs MCO 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 AON's full financials →   Open MCO's full financials →

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Frequently asked questions

Which is bigger, AON or MCO?

Moody's Corporation is larger by market capitalization — $82.8B versus $76.5B.

Which grows faster, AON or MCO?

Over the last five fiscal years, Aon plc grew revenue faster — 9.2%/yr versus 7.5%/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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