AJG vs MRSH

Arthur J. Gallagher (AJG) and Marsh McLennan (MRSH) compared side by side. Marsh McLennan (MRSH) is larger, with a market cap of $93.9B versus $68.7B for Arthur J. Gallagher, about 1.4 times the size. On trailing earnings, MRSH is cheaper at 23.6x versus 44.5x for AJG.

Head to head

MetricAJGMRSH
Market cap$68.7B$93.9B
P/E (TTM)44.5x23.6x
Forward P/E18.1x17.2x
Revenue (TTM)$15.1B$28.5B
Revenue growth30.9%8.1%
Gross margin43.2%44.5%
Operating margin19.2%18.4%
Free cash flow$2.3B$4.8B
Dividend yield1.04%2.01%
1-year return-4.0%+7.3%
5-year return (annual)+11.3%+4.8%
Max drawdown-58%-67%
FI Handbook gradeC+B-

Highlighted: the stronger figure on metrics where higher or lower is clearly better.

Growth of $10,000 (5 years, price only)

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AJGMRSH

AJG vs MRSH FAQ

Which is bigger, AJG or MRSH?

Marsh McLennan (MRSH) is larger, with a market cap of $93.9B versus $68.7B for Arthur J. Gallagher, about 1.4 times the size.

Is AJG or MRSH cheaper?

On trailing earnings, MRSH is cheaper at 23.6x versus 44.5x for AJG. A lower P/E can reflect slower expected growth, so compare growth and margins too.

Which stock performed better over the past year, AJG or MRSH?

MRSH returned +7.3% over the past year including dividends, versus -4.0% for AJG, through October 23, 2026.

Which pays a higher dividend, AJG or MRSH?

MRSH yields 2.01% versus 1.04% for AJG.

Full pages: Arthur J. Gallagher · Marsh McLennan