The short version

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

  • Berkshire Hathaway is the larger company, worth $1.10T, about 26.9 times American International.
  • Berkshire Hathaway grew revenue faster over the last year (+10.0% vs -0.1%).
  • Berkshire Hathaway keeps more of each dollar of revenue as operating profit (15.0% vs 13.6%).
  • On earnings, American International is the cheaper stock (13.6x vs 15.2x).

Side by side

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

MeasureAIGBRK-B
Market cap$41.0B$1.10T
Share price$77.04$515.62
Revenue (last fiscal year)$26.8B$371.4B
Free cash flow (last fiscal year)—$25.0B
Revenue growth, last year-0.1%+10.0%
Revenue growth per year, last 5 fiscal years-15.4%+7.7%
Operating margin13.6%15.0%
Net margin11.1%22.3%
Return on equity7.3%11.5%
P/E (trailing)13.6x15.2x
Price / free cash flow12.4x44.1x
EV / EBITDA6.49x9.22x
FCF growth the price implies—15.3%
Dividend yield2.3%—
Debt / equity3.03x0.69x
Fundamental gradeDB
Superinvestors holding it80
Insider purchases, last 12 months210

Results from SEC filings

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

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%

Berkshire Hathaway

YearRevenueFree cash flowOp. margin
2021$276.2B$26.2B11.7%
2022$302.0B$21.9B11.8%
2023$364.5B$29.8B11.9%
2024$371.4B$11.6B15.0%
2025$371.4B$25.0B14.3%

Where the revenue comes from

American International · by regions, 2025

International$14.1B53%
North America$12.7B47%

Berkshire Hathaway · by segments, 2025

Insurance Group$104.2B28%
Manufacturing Businesses$78.5B21%
McLane$51.0B14%
Service and Retailing$42.6B12%
Pilot Travel Centers LLC$42.2B11%
Berkshire Hathaway Energy ("BHE")$26.3B7%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open AIG in Investingly

Questions

Which is bigger, American International or Berkshire Hathaway?

Berkshire Hathaway (BRK-B), at $1.10T against $41.0B.

Is AIG or BRK-B cheaper?

By trailing P/E, American International (13.6x) is cheaper than Berkshire Hathaway (15.2x). A lower multiple can also mean the market expects less growth.

Which grows faster, AIG or BRK-B?

Berkshire Hathaway: revenue grew +10.0% over the last year, against -0.1%.

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