Ciena Corporation (CIEN)
Showing Closing Date Range from Jul 25 to Oct 23, 2026 compared to Apr 25 to Jul 24, 2026.
Compare Last 3 Months with Previous Period
Investor Relations:ir.ciena.com
Current Period Close
$320.26
Jul 25, 2026 - Oct 23, 2026
Previous Period Close
$390.96
Apr 25, 2026 - Jul 24, 2026
Net Comparison Delta
$-70.70 (-18.08%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(63 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 23, 2026 | $320.26 | - | - | - |
| Oct 22, 2026 | $322.64 | Jul 24, 2026 | $390.96 | -17.47% |
| Oct 21, 2026 | $361.34 | Jul 23, 2026 | $407.53 | -11.33% |
| Oct 20, 2026 | $341.95 | Jul 22, 2026 | $397.16 | -13.90% |
| Oct 19, 2026 | $344.20 | Jul 21, 2026 | $408.73 | -15.79% |
| Oct 16, 2026 | $332.73 | Jul 20, 2026 | $378.77 | -12.16% |
| Oct 15, 2026 | $356.52 | Jul 17, 2026 | $374.41 | -4.78% |
| Oct 14, 2026 | $359.60 | Jul 16, 2026 | $388.81 | -7.51% |
| Oct 13, 2026 | $400.40 | Jul 15, 2026 | $418.46 | -4.32% |
| Oct 12, 2026 | $405.01 | Jul 14, 2026 | $446.93 | -9.38% |
| Oct 09, 2026 | $449.77 | Jul 13, 2026 | $445.44 | +0.97% |
| Oct 08, 2026 | $425.93 | Jul 10, 2026 | $460.72 | -7.55% |
| Oct 07, 2026 | $446.45 | Jul 09, 2026 | $462.34 | -3.44% |
| Oct 06, 2026 | $443.65 | Jul 08, 2026 | $440.97 | +0.61% |
| Oct 05, 2026 | $389.69 | Jul 07, 2026 | $418.91 | -6.98% |
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