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Post Holdings, Inc.
POST - CIK 0001530950
Market cap$4.24 B
Rank#1522
SEC filings2,499
Market capitalization of Post Holdings, Inc.
As of 2026-06-10, Post Holdings, Inc. (POST) has a market capitalization of $4.24 B, making it the #1522 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-10 | $4.24 B |
| 2026-05-29 | $4.28 B |
| 2026-05-28 | $4.38 B |
| 2026-05-26 | $4.32 B |
| 2026-05-25 | $4.40 B |
| 2026-05-24 | $4.40 B |
| 2026-05-22 | $4.40 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
Market Cap of similar companies
Frequently asked questions
What is Post Holdings, Inc.'s market cap?
As of 2026-06-10, Post Holdings, Inc. (POST) has a market capitalization of $4.24 B, making it the #1522 most valuable US-listed company.
Where does Post Holdings, Inc. rank by market cap?
Post Holdings, Inc. is the #1522 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.