
CIEN · NYSE
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | $336.92 | $355.19 | $336.44 | $349.54 | +4.48% | 1.98M |
| Sep 10, 2026 | $333.00 | $348.40 | $328.36 | $334.56 | -1.02% | 2.55M |
| Sep 9, 2026 | $341.90 | $348.00 | $337.16 | $338.00 | -0.96% | 1.81M |
| Sep 8, 2026 | $327.42 | $349.78 | $325.69 | $341.29 | +6.32% | 3.23M |
| Sep 4, 2026 | $321.67 | $328.85 | $315.73 | $321.00 | +1.12% | 3.34M |
| Sep 3, 2026 | $354.49 | $358.76 | $311.60 | $317.46 | -10.36% | 7.54M |
| Sep 2, 2026 | $357.25 | $359.60 | $348.86 | $354.16 | -1.71% | 2.87M |
| Sep 1, 2026 | $376.89 | $381.60 | $356.40 | $360.33 | -5.87% | 2.26M |
| Aug 31, 2026 | $378.44 | $382.94 | $370.77 | $382.80 | +1.15% | 1.83M |
| Aug 28, 2026 | $400.42 | $400.50 | $376.64 | $378.44 | -5.35% | 1.32M |
| Aug 27, 2026 | $411.53 | $418.72 | $395.50 | $399.85 | -1.03% | 1.21M |
| Aug 26, 2026 | $387.23 | $406.44 | $387.23 | $404.03 | +4.22% | 1.19M |
| Aug 25, 2026 | $386.33 | $388.73 | $378.94 | $387.66 | +4.22% | 1.19M |
| Aug 24, 2026 | $386.26 | $386.26 | $362.48 | $371.95 | -6.02% | 1.78M |
| Aug 21, 2026 | $396.00 | $403.72 | $382.75 | $395.79 | +0.84% | 1.24M |
| Aug 20, 2026 | $400.35 | $404.35 | $389.10 | $392.48 | -1.75% | 1.45M |
| Aug 19, 2026 | $415.50 | $415.50 | $392.67 | $399.47 | -1.50% | 1.77M |
| Aug 18, 2026 | $421.59 | $427.74 | $391.77 | $405.54 | -8.90% | 3.05M |
| Aug 17, 2026 | $438.38 | $458.00 | $427.45 | $445.18 | +3.83% | 2.49M |
| Aug 14, 2026 | $441.61 | $446.15 | $422.49 | $428.77 | -3.17% | 2.52M |
| Aug 13, 2026 | $430.32 | $462.69 | $427.00 | $442.79 | +2.49% | 2.91M |
| Aug 12, 2026 | $414.51 | $446.36 | $409.24 | $432.05 | +11.49% | 3.99M |
| Aug 11, 2026 | $388.84 | $394.99 | $384.19 | $387.53 | -0.04% | 1.53M |
| Aug 10, 2026 | $420.00 | $420.00 | $387.28 | $387.70 | -5.99% | 2.02M |
| Aug 7, 2026 | $411.04 | $420.00 | $396.89 | $412.39 | +2.14% | 1.89M |
| Aug 6, 2026 | $396.05 | $419.49 | $390.56 | $403.76 | -1.24% | 1.35M |
| Aug 5, 2026 | $408.56 | $424.58 | $399.07 | $408.83 | -0.56% | 1.77M |
| Aug 4, 2026 | $419.08 | $427.00 | $405.01 | $411.13 | +5.21% | 2.07M |
| Aug 3, 2026 | $365.00 | $391.87 | $355.00 | $390.76 | +3.64% | 1.24M |
| Jul 31, 2026 | $393.98 | $401.00 | $374.38 | $377.05 | +1.34% | 1.95M |
| Jul 30, 2026 | $359.27 | $373.09 | $355.00 | $372.07 | +12.62% | 2.46M |
| Jul 29, 2026 | $349.64 | $350.80 | $323.29 | $330.37 | -5.75% | 2.63M |
| Jul 28, 2026 | $354.90 | $357.47 | $328.80 | $350.51 | -7.09% | 4.18M |
| Jul 27, 2026 | $388.19 | $388.19 | $360.00 | $377.27 | -3.50% | 1.51M |
| Jul 24, 2026 | $401.85 | $408.74 | $386.25 | $390.96 | -4.07% | 1.49M |
| Jul 23, 2026 | $394.10 | $415.80 | $394.10 | $407.53 | +2.61% | 1.80M |
| Jul 22, 2026 | $396.95 | $411.01 | $396.87 | $397.16 | -2.83% | 1.76M |
| Jul 21, 2026 | $397.70 | $412.04 | $396.55 | $408.73 | +7.91% | 2.04M |
| Jul 20, 2026 | $375.01 | $394.56 | $375.00 | $378.77 | +1.16% | 1.76M |
| Jul 17, 2026 | $370.99 | $388.61 | $359.01 | $374.41 | -3.70% | 3.37M |
| Jul 16, 2026 | $404.79 | $410.31 | $386.65 | $388.81 | -7.09% | 2.60M |
| Jul 15, 2026 | $451.01 | $451.01 | $404.40 | $418.46 | -6.37% | 1.66M |
| Jul 14, 2026 | $460.88 | $466.66 | $446.25 | $446.93 | +0.33% | 1.25M |
| Jul 13, 2026 | $448.67 | $461.45 | $440.51 | $445.44 | -3.32% | 1.22M |
| Jul 10, 2026 | $453.00 | $464.42 | $450.00 | $460.72 | -0.35% | 1.28M |
| Jul 9, 2026 | $460.60 | $485.69 | $459.81 | $462.34 | +4.85% | 2.05M |
| Jul 8, 2026 | $419.22 | $442.14 | $415.70 | $440.97 | +5.27% | 1.83M |
| Jul 7, 2026 | $418.77 | $425.96 | $404.43 | $418.91 | -3.44% | 1.82M |
| Jul 6, 2026 | $426.99 | $446.40 | $422.30 | $433.83 | +2.69% | 1.33M |
| Jul 2, 2026 | $454.16 | $459.73 | $414.17 | $422.46 | -8.65% | 2.16M |
| Jul 1, 2026 | $466.20 | $482.16 | $459.23 | $462.44 | -5.73% | 2.04M |
| Jun 30, 2026 | $478.93 | $491.79 | $472.59 | $490.56 | +2.43% | 2.45M |
| Jun 29, 2026 | $476.10 | $482.46 | $435.12 | $478.93 | -0.12% | 4.07M |
| Jun 26, 2026 | $466.33 | $493.26 | $457.70 | $479.50 | -1.07% | 8.74M |
| Jun 25, 2026 | $477.42 | $494.53 | $451.56 | $484.69 | +4.57% | 3.56M |
| Jun 24, 2026 | $449.36 | $480.59 | $440.70 | $463.51 | +0.80% | 2.80M |
| Jun 23, 2026 | $437.00 | $467.89 | $432.49 | $459.85 | -0.10% | 3.82M |
| Jun 22, 2026 | $437.83 | $461.50 | $430.51 | $460.33 | +7.50% | 3.86M |
| Jun 18, 2026 | $450.80 | $451.60 | $425.08 | $428.22 | -1.95% | 4.30M |
| Jun 17, 2026 | $433.00 | $449.00 | $424.33 | $436.72 | — | 2.88M |