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IonQ, Inc.
IONQ
Market cap$21.23 B
Rank#598
SEC filings559
Market capitalization of IonQ, Inc.
As of 2026-06-11, IonQ, Inc. (IONQ) has a market capitalization of $21.23 B, making it the #598 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $21.23 B |
| 2026-06-10 | $21.14 B |
| 2026-05-29 | $25.94 B |
| 2026-05-28 | $24.41 B |
| 2026-05-26 | $23.71 B |
| 2026-05-25 | $23.75 B |
| 2026-05-24 | $23.75 B |
| 2026-05-22 | $23.75 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 IonQ, Inc.'s market cap?
As of 2026-06-11, IonQ, Inc. (IONQ) has a market capitalization of $21.23 B, making it the #598 most valuable US-listed company.
Where does IonQ, Inc. rank by market cap?
IonQ, Inc. is the #598 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.