CIENA (CIEN) earnings on Dec 10, 2026: date and past stock reactions
In brief
CIENA reports on Dec 10, 2026. The quarter's results will appear on this page the night after publication. The previous report, on Sep 3, 2026, met a +1.3% gap and a +1.1% day. The stock is now 63.8% below its 52-week high, +17.9% over 12 months.
Price reaction to earnings
| Report | Gap | Day |
|---|---|---|
| Jun 4, 2026 | −11.0% | −13.7% |
| Sep 3, 2026 | +1.3% | +1.1% |
Next-quarter estimates, ratings and the CIEN chart are in the terminal.
Open the terminalFAQ
When is CIENA's next earnings report?
Dec 10, 2026. The date comes from daily data and is corrected if the company moves it.
What is an earnings gap?
The jump between the close before and the open after the report. A big gap up often means large buyers are revaluing the company.