price
CI
NYSE · CIEN
Ciena Corporation
Technology · Communication Equipment
$320.72
Down-$28.73 (-8.22%)
Updated Nov 1, 2026, 8:22 PM
SID Score
5.6/10
Composite research score
Smart Money
58/100
Neutral
- Market cap
- 34.24B
- P/E ratio
- 277.98
- Dividend yield
- 0.00%
- 52-week range
- $168.22 – $637.51
- Volume
- 3.1M
- Avg. volume
- 3.16M
Price performance · CIEN
CIEN price history
1M range · 20 trading sessions · Daily adjusted prices
Prices through Oct 30, 2026
CIEN closed at $320.72 after 20 trading sessions, down 17.70% for the selected period.
- Last close
- $320.72
- Period change
- -17.70%
- Period low
- $320.26
- Period high
- $449.77
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 30, 2026 | $326.00 | $332.72 | $313.265 | $320.72 | 3.1M |
| Oct 29, 2026 | $348.60 | $361.96 | $340.0101 | $349.45 | 2.81M |
| Oct 28, 2026 | $357.01 | $368.24 | $351.60 | $363.21 | 2.79M |
| Oct 27, 2026 | $344.09 | $353.095 | $336.3009 | $351.15 | 2.69M |
| Oct 26, 2026 | $324.06 | $345.48 | $318.77 | $335.93 | 2.84M |
| Oct 23, 2026 | $325.95 | $327.40 | $313.4479 | $320.26 | 1.97M |
| Oct 22, 2026 | $343.48 | $346.29 | $320.695 | $322.64 | 3.94M |
| Oct 21, 2026 | $354.56 | $363.97 | $349.87 | $361.34 | 3.01M |
| Oct 20, 2026 | $336.70 | $350.3468 | $328.88 | $341.95 | 1.95M |
| Oct 19, 2026 | $348.31 | $354.45 | $338.79 | $344.20 | 3.06M |
| Oct 16, 2026 | $350.95 | $354.60 | $330.985 | $332.73 | 3.2M |
| Oct 15, 2026 | $342.50 | $357.8286 | $333.15 | $356.52 | 3.49M |
| Oct 14, 2026 | $393.88 | $393.88 | $356.78 | $359.60 | 3.32M |
| Oct 13, 2026 | $393.33 | $401.87 | $381.64 | $400.40 | 2.74M |
| Oct 12, 2026 | $443.53 | $445.9476 | $400.20 | $405.01 | 3.33M |
| Oct 9, 2026 | $436.00 | $454.7282 | $424.02 | $449.77 | 3.78M |
| Oct 8, 2026 | $436.15 | $443.99 | $421.11 | $425.93 | 3.7M |
| Oct 7, 2026 | $428.975 | $448.00 | $422.304 | $446.45 | 3.37M |
| Oct 6, 2026 | $393.58 | $446.37 | $392.00 | $443.65 | 6.4M |
| Oct 5, 2026 | $393.77 | $397.47 | $382.50 | $389.69 | 2.47M |
Latest CIEN news
The latest Smart Investors Daily articles mentioning CIEN.
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