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View Price for CIEN.
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Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
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Historical Price Data

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Date Open High Low Close Volume
Aug 27, 2026 411.53 418.72 395.50 399.85 1.209M
Aug 26, 2026 387.23 406.44 387.23 404.03 1.195M
Aug 25, 2026 386.33 388.73 378.94 387.66 1.191M
Aug 24, 2026 386.26 386.26 362.48 371.95 1.779M
Aug 21, 2026 396.00 403.72 382.74 395.79 1.235M
Aug 20, 2026 400.35 404.35 389.10 392.48 1.453M
Aug 19, 2026 415.50 415.50 392.67 399.47 1.772M
Aug 18, 2026 421.58 427.74 391.77 405.54 3.052M
Aug 17, 2026 438.38 458.00 427.44 445.18 2.495M
Aug 14, 2026 441.61 446.15 422.49 428.77 2.519M
Aug 13, 2026 430.32 462.69 427.00 442.79 2.913M
Aug 12, 2026 414.50 446.36 409.24 432.05 3.989M
Aug 11, 2026 388.84 394.99 384.19 387.53 1.535M
Aug 10, 2026 420.00 420.00 387.28 387.70 2.022M
Aug 07, 2026 411.04 420.00 396.89 412.39 1.887M
Aug 06, 2026 396.05 419.49 390.56 403.76 1.354M
Aug 05, 2026 408.56 424.58 399.07 408.83 1.774M
Aug 04, 2026 419.08 427.00 405.01 411.13 2.069M
Aug 03, 2026 365.00 391.87 355.00 390.76 1.244M
Jul 31, 2026 393.98 401.00 374.38 377.05 1.948M
Jul 30, 2026 359.27 373.09 355.00 372.07 2.464M
Jul 29, 2026 349.64 350.80 323.29 330.37 2.635M
Jul 28, 2026 354.90 357.47 328.80 350.51 4.181M
Jul 27, 2026 388.19 388.19 360.00 377.27 1.513M
Jul 24, 2026 404.96 408.74 386.25 390.96 1.489M

Price Definition

The price of a security measures the cost to purchase 1 share of a security. For a company, price can be multiplied by shares outstanding to find the market capitalization (value of the company).

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Price Range, Past 5 Years

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