Daily trading records
Ciena Stock Price on August 14, 2026
Direct answer
Ciena closed at $428.77 on August 14, 2026.
The open was $441.61, the high was $446.15 and the low was $422.49.
Volume was 2,518,983. The change from the prior close was -$14.02 (-3.17%).
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Review Ciena's price trend and period performance.
The chart connects verified session closes from May 19, 2026 through August 14, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+3.97%
From the August 7, 2026 close of $412.39 to $428.77 on August 14, 2026.
20-session performance
+14.52%
From the July 17, 2026 close of $374.41 to $428.77 on August 14, 2026.
60-session performance
-20.88%
From the May 19, 2026 close of $541.92 to $428.77 on August 14, 2026.
Verified data
- Open
- $441.61
- High
- $446.15
- Low
- $422.49
- Close
- $428.77
- Volume
- 2,518,983
- Prior-close change
- -$14.02 (-3.17%)
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Read the frequently asked questions.
What was Ciena's closing price on August 14, 2026?
Ciena closed at $428.77 on August 14, 2026.
What were Ciena's open, high and low on August 14, 2026?
The open was $441.61, the high was $446.15 and the low was $422.49.
How much did Ciena change from the prior close on August 14, 2026?
The change from the prior close was -$14.02 (-3.17%).
What was Ciena's volume on August 14, 2026?
Trading volume was 2,518,983 shares.
What is the source for Ciena's daily prices?
Daily aggregate prices are provided by Polygon.