Daily trading records
Ciena Stock Price on August 11, 2026
Direct answer
Ciena closed at $387.53 on August 11, 2026.
The open was $388.84, the high was $394.9899 and the low was $384.19.
Volume was 1,534,885. The change from the prior close was -$0.17 (-0.04%).
Get free Ciena email updates.
Bullstory sends one daily email when new analysis or important company news is available.
Review Ciena's price trend and period performance.
The chart connects verified session closes from May 14, 2026 through August 11, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-5.74%
From the August 4, 2026 close of $411.13 to $387.53 on August 11, 2026.
20-session performance
-13.29%
From the July 14, 2026 close of $446.93 to $387.53 on August 11, 2026.
60-session performance
-34.49%
From the May 14, 2026 close of $591.57 to $387.53 on August 11, 2026.
Verified data
- Open
- $388.84
- High
- $394.9899
- Low
- $384.19
- Close
- $387.53
- Volume
- 1,534,885
- Prior-close change
- -$0.17 (-0.04%)
Explore related company data
Read the frequently asked questions.
What was Ciena's closing price on August 11, 2026?
Ciena closed at $387.53 on August 11, 2026.
What were Ciena's open, high and low on August 11, 2026?
The open was $388.84, the high was $394.9899 and the low was $384.19.
How much did Ciena change from the prior close on August 11, 2026?
The change from the prior close was -$0.17 (-0.04%).
What was Ciena's volume on August 11, 2026?
Trading volume was 1,534,885 shares.
What is the source for Ciena's daily prices?
Daily aggregate prices are provided by Polygon.