CIENA CORP's ticker is and the CUSIP is 171779909. A total of 6 filers reported holding CIENA CORP in Q1 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Virtu KCG Holdings LLC | 20,600 | $400,000 | 0.01% |
| Marathon Trading Investment Management LLC | 25,000 | $485,000 | 0.01% |
| Citadel Advisors | 296,600 | $5,757,000 | 0.01% |
| Timber Hill LLC | 70,800 | $1,374,000 | 0.01% |
| SIMPLEX TRADING, LLC | 186 | $34,000 | 0.00% |
| GROUP ONE TRADING, L.P. | 7,100 | $138,000 | 0.00% |