analyst
CI
NYSE · CIEN
Ciena Corporation
Technology · Communication Equipment
$334.33
Down-$2.47 (-0.74%)
Updated Sep 16, 2026, 7:06 PM
SID Score
5.4/10
Composite research score
Smart Money
55/100
Neutral
- Market cap
- 34.24B
- P/E ratio
- 277.98
- Dividend yield
- 0.00%
- 52-week range
- $130.00 – $637.51
- Volume
- 2.8M
- Avg. volume
- 3.16M
Price performance
CIEN price history
1M range · 20 trading sessions · Daily adjusted prices
CIEN closed at $334.33 after 20 trading sessions, down 17.56% for the selected period.
- Last close
- $334.33
- Period change
- -17.56%
- Period low
- $317.46
- Period high
- $405.54
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Sep 15, 2026 | $324.44 | $335.97 | $320.50 | $334.33 | 2.8M |
| Sep 14, 2026 | $326.98 | $332.32 | $318.43 | $319.64 | 2.21M |
| Sep 11, 2026 | $336.92 | $355.19 | $336.44 | $349.54 | 1.98M |
| Sep 10, 2026 | $333.00 | $348.3999 | $328.3584 | $334.56 | 2.55M |
| Sep 9, 2026 | $341.90 | $348.00 | $337.16 | $338.00 | 1.81M |
| Sep 8, 2026 | $327.42 | $349.78 | $325.69 | $341.29 | 3.23M |
| Sep 4, 2026 | $321.67 | $328.845 | $315.73 | $321.00 | 3.34M |
| Sep 3, 2026 | $354.49 | $358.76 | $311.60 | $317.46 | 7.54M |
| Sep 2, 2026 | $357.25 | $359.60 | $348.86 | $354.16 | 2.87M |
| Sep 1, 2026 | $376.89 | $381.595 | $356.40 | $360.33 | 2.26M |
| Aug 31, 2026 | $378.44 | $382.94 | $370.77 | $382.80 | 1.83M |
| Aug 28, 2026 | $400.42 | $400.50 | $376.64 | $378.44 | 1.32M |
| Aug 27, 2026 | $411.53 | $418.72 | $395.50 | $399.85 | 1.21M |
| Aug 26, 2026 | $387.23 | $406.44 | $387.23 | $404.03 | 1.19M |
| Aug 25, 2026 | $386.33 | $388.73 | $378.935 | $387.66 | 1.19M |
| Aug 24, 2026 | $386.26 | $386.26 | $362.48 | $371.95 | 1.78M |
| Aug 21, 2026 | $396.00 | $403.72 | $382.745 | $395.79 | 1.24M |
| Aug 20, 2026 | $400.35 | $404.3494 | $389.10 | $392.48 | 1.45M |
| Aug 19, 2026 | $415.50 | $415.50 | $392.67 | $399.47 | 1.77M |
| Aug 18, 2026 | $421.585 | $427.74 | $391.77 | $405.54 | 3.05M |
Latest CIEN news
The latest Smart Investors Daily articles mentioning CIEN.
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