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CIENA CORP
CIEN - Company ID 0000936395
Market cap$34.06 B
Rank#424
Filings1,000
Market capitalization of CIENA CORP
As of 2026-11-06, CIENA CORP (CIEN) has a market capitalization of $34.06 B, making it the #424 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-11-06 | $34.06 B |
| 2026-11-05 | $32.73 B |
| 2026-11-04 | $38.18 B |
| 2026-11-03 | $42.55 B |
| 2026-11-02 | $40.32 B |
| 2026-11-01 | $45.40 B |
| 2026-10-31 | $45.40 B |
| 2026-10-30 | $44.81 B |
| 2026-10-29 | $49.96 B |
| 2026-10-28 | $51.21 B |
| 2026-10-27 | $49.71 B |
| 2026-10-26 | $47.55 B |
Market Cap of similar companies
Frequently asked questions
What is CIENA CORP's market cap?
As of 2026-11-06, CIENA CORP (CIEN) has a market capitalization of $34.06 B, making it the #424 most valuable US-listed company.
Where does CIENA CORP rank by market cap?
CIENA CORP is the #424 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.