Ciena Corporation (CIEN)
Showing Closing Date Range from May 3 to Oct 30, 2026 compared to Nov 3, 2025 to May 2, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:ir.ciena.com
Current Period Close
$319.24
May 03, 2026 - Oct 30, 2026
Previous Period Close
$535.29
Nov 03, 2025 - May 02, 2026
Net Comparison Delta
$-216.05 (-40.36%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(125 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 30, 2026 | $319.24 | - | - | - |
| Oct 29, 2026 | $349.45 | May 01, 2026 | $535.29 | -34.72% |
| Oct 28, 2026 | $363.21 | Apr 30, 2026 | $527.58 | -31.16% |
| Oct 27, 2026 | $351.15 | Apr 29, 2026 | $475.39 | -26.13% |
| Oct 26, 2026 | $335.93 | Apr 28, 2026 | $473.69 | -29.08% |
| Oct 23, 2026 | $320.26 | Apr 27, 2026 | $506.34 | -36.75% |
| Oct 22, 2026 | $322.64 | Apr 24, 2026 | $520.80 | -38.05% |
| Oct 21, 2026 | $361.34 | Apr 23, 2026 | $515.85 | -29.95% |
| Oct 20, 2026 | $341.95 | Apr 22, 2026 | $498.97 | -31.47% |
| Oct 19, 2026 | $344.20 | Apr 21, 2026 | $505.93 | -31.97% |
| Oct 16, 2026 | $332.73 | Apr 20, 2026 | $503.27 | -33.89% |
| Oct 15, 2026 | $356.52 | Apr 17, 2026 | $507.43 | -29.74% |
| Oct 14, 2026 | $359.60 | Apr 16, 2026 | $495.17 | -27.38% |
| Oct 13, 2026 | $400.40 | Apr 15, 2026 | $475.76 | -15.84% |
| Oct 12, 2026 | $405.01 | Apr 14, 2026 | $467.19 | -13.31% |
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