Prices delayed by 15 minutes
The series is stated in the current share scale after splits; dividends are not included in the price
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| September 17, 2026 | 350.60 | 375.70 | 341.93 | 344.25 | 4m |
| September 16, 2026 | 350.09 | 375.20 | 327.50 | 340.50 | 4m |
| September 15, 2026 | 324.44 | 335.97 | 320.50 | 334.33 | 3m |
| September 14, 2026 | 326.98 | 332.32 |
Based on reports through October 31, 2025
Ciena makes optical transport equipment — the gear carrying traffic between cities and data centres.
Buyers are telecom carriers, cloud companies and government networks. Orders arrive as projects: a route is built or upgraded and equipment is bought in a batch. Hence uneven revenue from quarter to quarter and dependence on a few large customers' capital budgets.
A new demand source is linking data centres to one another: training large models is spread across several sites, and the bandwidth needed between them was previously required only by intercontinental routes. That shifted the order mix from carriers toward cloud companies. Orders arrive in lumps and cash tied up in components makes the quarterly result uneven. The company pays no dividend.
Address:7035 RIDGE ROAD, HANOVER, MD, 21076, US
| 7m |
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| FIEEFiEE, Inc | 3.84 | +172.40 % | 2m |
| AUDCAudioCodes Ltd. | 10.07 | +39.90 % | 1m |
| FKWLFranklin Wireless Corp. | 2.42 | −41.20 % | 32,083 |
| 318.43 |
| 319.64 |
| 2m |
| September 11, 2026 | 336.92 | 355.19 | 336.44 | 349.54 | 2m |
| September 10, 2026 | 333.00 | 348.40 | 328.36 | 334.56 | 3m |
| September 09, 2026 | 341.90 | 348.00 | 337.16 | 338.00 | 2m |
| September 08, 2026 | 327.42 | 349.78 | 325.69 | 341.29 | 3m |
| September 04, 2026 | 321.67 | 328.85 | 315.73 | 321.00 | 3m |
| September 03, 2026 | 354.49 | 358.76 | 311.60 | 317.46 | 8m |
| September 02, 2026 | 357.25 | 359.60 | 348.86 | 354.16 | 3m |
| September 01, 2026 | 376.89 | 381.60 | 356.40 | 360.33 | 2m |
| August 31, 2026 | 378.44 | 382.94 | 370.77 | 382.80 | 2m |
| August 28, 2026 | 400.42 | 400.50 | 376.64 | 378.44 | 1m |
| August 27, 2026 | 411.53 | 418.72 | 395.50 | 399.85 | 1m |
| August 26, 2026 | 387.23 | 406.44 | 387.23 | 404.03 | 1m |
| August 25, 2026 | 386.33 | 388.73 | 378.94 | 387.66 | 1m |
| August 24, 2026 | 386.26 | 386.26 | 362.48 | 371.95 | 2m |
| August 21, 2026 | 396.00 | 403.72 | 382.75 | 395.79 | 1m |
| August 20, 2026 | 400.35 | 404.35 | 389.10 | 392.48 | 1m |