The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • American International is the larger company, worth $41.0B, about 1.2 times Arch Capital Group.
  • American International grew revenue faster over the last year (-0.1% vs -10.4%).
  • Arch Capital Group keeps more of each dollar of revenue as operating profit (26.9% vs 13.6%).
  • On earnings, Arch Capital Group is the cheaper stock (7.4x vs 13.6x).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureACGLAIG
Market cap$33.6B$41.0B
Share price$95.57$77.04
Revenue (last fiscal year)$19.9B$26.8B
Free cash flow (last fiscal year)$6.1B—
Revenue growth, last year-10.4%-0.1%
Revenue growth per year, last 5 fiscal years+21.2%-15.4%
Operating margin26.9%13.6%
Net margin24.4%11.1%
Return on equity19.5%7.3%
P/E (trailing)7.40x13.6x
Price / free cash flow5.49x12.4x
EV / EBITDA—6.49x
FCF growth the price implies-12.6%—
Dividend yield—2.3%
Debt / equity2.54x3.03x
Fundamental gradeCD
Superinvestors holding it08
Insider purchases, last 12 months22

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

Arch Capital Group

YearRevenueFree cash flowOp. margin
2021$9.2B$3.4B22.7%
2022$9.6B$3.8B15.5%
2023$13.6B$5.7B24.8%
2024$17.4B$6.6B25.7%
2025$19.9B$6.1B25.0%

American International

YearRevenueFree cash flowOp. margin
2021$52.2B$5.9B25.6%
2022$30.0B$3.9B12.6%
2023$27.9B$6.0B10.3%
2024$27.3B—14.2%
2025$26.8B—14.5%

Where the revenue comes from

Arch Capital Group

No segment breakdown reported.

American International · by regions, 2025

International$14.1B53%
North America$12.7B47%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open ACGL in Investingly

Questions

Which is bigger, Arch Capital Group or American International?

American International (AIG), at $41.0B against $33.6B.

Is ACGL or AIG cheaper?

By trailing P/E, Arch Capital Group (7.40x) is cheaper than American International (13.6x). A lower multiple can also mean the market expects less growth.

Which grows faster, ACGL or AIG?

American International: revenue grew -0.1% over the last year, against -10.4%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.