Daily trading records
Plug Power Stock Price on September 21, 2026
Direct answer
Plug Power closed at $2.09 on September 21, 2026.
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Review Plug Power's price trend and period performance.
The chart connects verified session closes from June 25, 2026 through September 21, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+1.46%
From the September 14, 2026 close of $2.06 to $2.09 on September 21, 2026.
20-session performance
-7.93%
From the August 21, 2026 close of $2.27 to $2.09 on September 21, 2026.
60-session performance
-18.68%
From the June 25, 2026 close of $2.57 to $2.09 on September 21, 2026.
Verified data
- Open
- $2.12
- High
- $2.135
- Low
- $2.06
- Close
- $2.09
- Volume
- 34,064,923
- Prior-close change
- $0.00 (0.00%)
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Read the frequently asked questions.
What was Plug Power's closing price on September 21, 2026?
Plug Power closed at $2.09 on September 21, 2026.
What were Plug Power's open, high and low on September 21, 2026?
The open was $2.12, the high was $2.135 and the low was $2.06.
How much did Plug Power change from the prior close on September 21, 2026?
The change from the prior close was $0.00 (0.00%).
What was Plug Power's volume on September 21, 2026?
Trading volume was 34,064,923 shares.
What is the source for Plug Power's daily prices?
Daily aggregate prices are provided by Polygon.