Ciena Corporation (CIEN)
NYSE: CIEN · Real-Time Price · USD
341.95
-2.25 (-0.65%)
At close: Oct 20, 2026, 4:00 PM EDT
354.00
+12.05 (3.52%)
After-hours: Oct 20, 2026, 7:59 PM EDT
Ciena Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 20, 2026 | 336.70 | 350.35 | 328.88 | 341.95 | 341.95 | -0.65% | 1,946,534 |
| Oct 19, 2026 | 348.31 | 354.45 | 338.79 | 344.20 | 344.20 | 3.45% | 3,018,962 |
| Oct 16, 2026 | 350.95 | 354.60 | 330.99 | 332.73 | 332.73 | -6.67% | 3,178,973 |
| Oct 15, 2026 | 342.50 | 357.83 | 333.15 | 356.52 | 356.52 | -0.86% | 3,473,711 |
| Oct 14, 2026 | 393.88 | 393.88 | 356.78 | 359.60 | 359.60 | -10.19% | 3,223,030 |
| Oct 13, 2026 | 393.33 | 401.87 | 381.64 | 400.40 | 400.40 | -1.14% | 2,730,679 |
| Oct 12, 2026 | 443.53 | 445.95 | 400.20 | 405.01 | 405.01 | -9.95% | 3,299,608 |
| Oct 9, 2026 | 436.00 | 454.73 | 424.02 | 449.77 | 449.77 | 5.60% | 3,764,377 |
| Oct 8, 2026 | 436.15 | 443.99 | 421.11 | 425.93 | 425.93 | -4.60% | 3,686,415 |
| Oct 7, 2026 | 428.98 | 448.00 | 422.30 | 446.45 | 446.45 | 0.63% | 3,353,116 |
| Oct 6, 2026 | 393.58 | 446.37 | 392.00 | 443.65 | 443.65 | 13.85% | 6,358,282 |
| Oct 5, 2026 | 393.77 | 397.47 | 382.50 | 389.69 | 389.69 | -0.42% | 2,472,030 |
| Oct 2, 2026 | 385.00 | 395.96 | 377.03 | 391.34 | 391.34 | 3.22% | 2,511,291 |
| Oct 1, 2026 | 355.19 | 381.00 | 350.68 | 379.14 | 379.14 | 7.77% | 2,558,882 |
| Sep 30, 2026 | 354.92 | 359.98 | 340.52 | 351.82 | 351.82 | -0.87% | 2,641,801 |
| Sep 29, 2026 | 350.16 | 356.21 | 344.80 | 354.92 | 354.92 | 3.12% | 2,210,197 |
| Sep 28, 2026 | 352.42 | 356.99 | 339.33 | 344.19 | 344.19 | -3.56% | 1,823,614 |
| Sep 25, 2026 | 363.00 | 366.43 | 355.01 | 356.91 | 356.91 | -0.42% | 1,577,613 |
| Sep 24, 2026 | 350.40 | 363.46 | 346.56 | 358.43 | 358.43 | 0.71% | 1,395,307 |
| Sep 23, 2026 | 368.64 | 369.00 | 351.53 | 355.91 | 355.91 | -3.43% | 1,838,199 |
| Sep 22, 2026 | 364.31 | 376.74 | 363.14 | 368.56 | 368.56 | 0.71% | 2,397,174 |
| Sep 21, 2026 | 365.05 | 367.62 | 356.46 | 365.96 | 365.96 | 4.92% | 2,819,777 |
| Sep 18, 2026 | 355.87 | 358.00 | 338.25 | 348.80 | 348.80 | 1.32% | 4,743,387 |
| Sep 17, 2026 | 350.60 | 375.70 | 341.93 | 344.25 | 344.25 | 1.10% | 3,753,381 |
| Sep 16, 2026 | 350.09 | 375.20 | 327.50 | 340.50 | 340.50 | 1.85% | 3,931,473 |
| Sep 15, 2026 | 324.44 | 335.97 | 320.50 | 334.33 | 334.33 | 4.60% | 2,781,432 |
| Sep 14, 2026 | 326.98 | 332.32 | 318.43 | 319.64 | 319.64 | -8.55% | 2,196,303 |
| Sep 11, 2026 | 336.92 | 355.19 | 336.44 | 349.54 | 349.54 | 4.48% | 1,976,717 |
| Sep 10, 2026 | 333.00 | 348.40 | 328.36 | 334.56 | 334.56 | -1.02% | 2,436,504 |
| Sep 9, 2026 | 341.90 | 348.00 | 337.16 | 338.00 | 338.00 | -0.96% | 1,789,206 |
| Sep 8, 2026 | 327.42 | 349.78 | 325.69 | 341.29 | 341.29 | 6.32% | 3,209,883 |
| Sep 4, 2026 | 321.67 | 328.85 | 315.73 | 321.00 | 321.00 | 1.12% | 3,329,915 |
| Sep 3, 2026 | 354.49 | 358.76 | 311.60 | 317.46 | 317.46 | -10.36% | 7,480,492 |
| Sep 2, 2026 | 357.25 | 359.60 | 348.86 | 354.16 | 354.16 | -1.71% | 2,813,752 |
| Sep 1, 2026 | 376.89 | 381.60 | 356.40 | 360.33 | 360.33 | -5.87% | 2,182,068 |
| Aug 31, 2026 | 378.44 | 382.94 | 370.77 | 382.80 | 382.80 | 1.15% | 1,784,972 |
| Aug 28, 2026 | 400.42 | 400.50 | 376.64 | 378.44 | 378.44 | -5.35% | 1,314,029 |
| Aug 27, 2026 | 411.53 | 418.72 | 395.50 | 399.85 | 399.85 | -1.03% | 1,200,943 |
| Aug 26, 2026 | 387.23 | 406.44 | 387.23 | 404.03 | 404.03 | 4.22% | 1,176,898 |
| Aug 25, 2026 | 386.33 | 388.73 | 378.94 | 387.66 | 387.66 | 4.22% | 1,187,801 |
| Aug 24, 2026 | 386.26 | 386.26 | 362.48 | 371.95 | 371.95 | -6.02% | 1,776,106 |
| Aug 21, 2026 | 396.00 | 403.72 | 382.75 | 395.79 | 395.79 | 0.84% | 1,228,741 |
| Aug 20, 2026 | 400.35 | 404.35 | 389.10 | 392.48 | 392.48 | -1.75% | 1,433,812 |
| Aug 19, 2026 | 415.50 | 415.50 | 392.67 | 399.47 | 399.47 | -1.50% | 1,735,630 |
| Aug 18, 2026 | 421.59 | 427.74 | 391.77 | 405.54 | 405.54 | -8.90% | 3,036,209 |
| Aug 17, 2026 | 438.38 | 458.00 | 427.45 | 445.18 | 445.18 | 3.83% | 2,489,425 |
| Aug 14, 2026 | 441.61 | 446.15 | 422.49 | 428.77 | 428.77 | -3.17% | 2,509,281 |
| Aug 13, 2026 | 430.32 | 462.69 | 427.00 | 442.79 | 442.79 | 2.49% | 2,907,028 |
| Aug 12, 2026 | 414.51 | 446.36 | 409.24 | 432.05 | 432.05 | 11.49% | 3,971,703 |
| Aug 11, 2026 | 388.84 | 394.99 | 384.19 | 387.53 | 387.53 | -0.04% | 1,509,580 |