Daily trading records
Ciena Stock Price on August 28, 2026
Direct answer
Ciena closed at $378.44 on August 28, 2026.
The open was $400.42, the high was $400.50 and the low was $376.64.
Volume was 1,318,586. The change from the prior close was -$21.41 (-5.35%).
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Review Ciena's price trend and period performance.
The chart connects verified session closes from June 3, 2026 through August 28, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-4.38%
From the August 21, 2026 close of $395.79 to $378.44 on August 28, 2026.
20-session performance
+0.37%
From the July 31, 2026 close of $377.05 to $378.44 on August 28, 2026.
60-session performance
-39.00%
From the June 3, 2026 close of $620.37 to $378.44 on August 28, 2026.
Verified data
- Open
- $400.42
- High
- $400.50
- Low
- $376.64
- Close
- $378.44
- Volume
- 1,318,586
- Prior-close change
- -$21.41 (-5.35%)
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Read the frequently asked questions.
What was Ciena's closing price on August 28, 2026?
Ciena closed at $378.44 on August 28, 2026.
What were Ciena's open, high and low on August 28, 2026?
The open was $400.42, the high was $400.50 and the low was $376.64.
How much did Ciena change from the prior close on August 28, 2026?
The change from the prior close was -$21.41 (-5.35%).
What was Ciena's volume on August 28, 2026?
Trading volume was 1,318,586 shares.
What is the source for Ciena's daily prices?
Daily aggregate prices are provided by Polygon.