Daily trading records
Ciena Stock Price on August 31, 2026
Direct answer
Ciena closed at $382.80 on August 31, 2026.
The open was $378.44, the high was $382.94 and the low was $370.77.
Volume was 1,830,229. The change from the prior close was +$4.36 (+1.15%).
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Review Ciena's price trend and period performance.
The chart connects verified session closes from June 4, 2026 through August 31, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+2.92%
From the August 24, 2026 close of $371.95 to $382.80 on August 31, 2026.
20-session performance
-2.04%
From the August 3, 2026 close of $390.76 to $382.80 on August 31, 2026.
60-session performance
-28.53%
From the June 4, 2026 close of $535.63 to $382.80 on August 31, 2026.
Verified data
- Open
- $378.44
- High
- $382.94
- Low
- $370.77
- Close
- $382.80
- Volume
- 1,830,229
- Prior-close change
- +$4.36 (+1.15%)
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Read the frequently asked questions.
What was Ciena's closing price on August 31, 2026?
Ciena closed at $382.80 on August 31, 2026.
What were Ciena's open, high and low on August 31, 2026?
The open was $378.44, the high was $382.94 and the low was $370.77.
How much did Ciena change from the prior close on August 31, 2026?
The change from the prior close was +$4.36 (+1.15%).
What was Ciena's volume on August 31, 2026?
Trading volume was 1,830,229 shares.
What is the source for Ciena's daily prices?
Daily aggregate prices are provided by Polygon.