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CIEN
Ciena Corporation
stock NYSE

At Close

Aug 7, 2026 3:59:59 PM EDT

412.62USD+2.194%(+8.86)1,887,192

0.00Bid 0.00Ask 0.00Spread

Pre-market

Aug 7, 2026 8:48:26 AM EDT

422.38USD+4.612%(+18.62)1

After-hours

Aug 7, 2026 4:42:30 PM EDT

412.01USD-0.148%(-0.61)145,399

OverviewOptionsHistoricalExchangesShort Interest - DailyMore

As of 2026-07-15, there were 3,993,188 shares short with a short interest of 2.83%.

Price

Price

Historical data is split-adjusted.

1) Data from Finra. Finra publishes an updated file every two weeks.

2) Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.

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