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Arthur J. Gallagher & Co.
AJG - Company ID 0000354190
Market cap$67.49 B
Rank#251
Filings2,521
Market capitalization of Arthur J. Gallagher & Co.
As of 2026-09-08, Arthur J. Gallagher & Co. (AJG) has a market capitalization of $67.49 B, making it the #251 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-09-08 | $67.49 B |
| 2026-09-07 | $67.49 B |
| 2026-09-06 | $67.49 B |
| 2026-09-05 | $67.49 B |
| 2026-09-04 | $67.85 B |
| 2026-09-03 | $68.50 B |
| 2026-09-02 | $67.97 B |
| 2026-09-01 | $67.31 B |
| 2026-08-31 | $67.35 B |
| 2026-08-30 | $68.74 B |
| 2026-08-29 | $68.74 B |
| 2026-08-28 | $68.74 B |
Market Cap of similar companies
Frequently asked questions
What is Arthur J. Gallagher & Co.'s market cap?
As of 2026-09-08, Arthur J. Gallagher & Co. (AJG) has a market capitalization of $67.49 B, making it the #251 most valuable US-listed company.
Where does Arthur J. Gallagher & Co. rank by market cap?
Arthur J. Gallagher & Co. is the #251 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.