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CIENA CORP
CIEN - Company ID 0000936395
Market cap$45.44 B
Rank#350
Filings1,000
Market capitalization of CIENA CORP
As of 2026-09-07, CIENA CORP (CIEN) has a market capitalization of $45.44 B, making it the #350 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-09-07 | $45.44 B |
| 2026-09-06 | $45.44 B |
| 2026-09-05 | $45.44 B |
| 2026-09-04 | $45.25 B |
| 2026-09-03 | $44.94 B |
| 2026-09-02 | $49.52 B |
| 2026-09-01 | $51.01 B |
| 2026-08-31 | $54.19 B |
| 2026-08-30 | $53.57 B |
| 2026-08-29 | $53.57 B |
| 2026-08-28 | $53.57 B |
| 2026-08-27 | $56.74 B |
Market Cap of similar companies
Frequently asked questions
What is CIENA CORP's market cap?
As of 2026-09-07, CIENA CORP (CIEN) has a market capitalization of $45.44 B, making it the #350 most valuable US-listed company.
Where does CIENA CORP rank by market cap?
CIENA CORP is the #350 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.