Daily trading records
Ciena Stock Price on September 4, 2026
Direct answer
Ciena closed at $321.00 on September 4, 2026.
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Review Ciena's price trend and period performance.
The chart connects verified session closes from June 10, 2026 through September 4, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-15.18%
From the August 28, 2026 close of $378.44 to $321.00 on September 4, 2026.
20-session performance
-22.16%
From the August 7, 2026 close of $412.39 to $321.00 on September 4, 2026.
60-session performance
-26.15%
From the June 10, 2026 close of $434.65 to $321.00 on September 4, 2026.
Verified data
- Open
- $321.67
- High
- $328.845
- Low
- $315.73
- Close
- $321.00
- Volume
- 3,344,361
- Prior-close change
- +$3.54 (+1.12%)
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Read the frequently asked questions.
What was Ciena's closing price on September 4, 2026?
Ciena closed at $321.00 on September 4, 2026.
What were Ciena's open, high and low on September 4, 2026?
The open was $321.67, the high was $328.845 and the low was $315.73.
How much did Ciena change from the prior close on September 4, 2026?
The change from the prior close was +$3.54 (+1.12%).
What was Ciena's volume on September 4, 2026?
Trading volume was 3,344,361 shares.
What is the source for Ciena's daily prices?
Daily aggregate prices are provided by Polygon.