Daily trading records
Plug Power Stock Price on September 17, 2026
Direct answer
Plug Power closed at $2.12 on September 17, 2026.
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Review Plug Power's price trend and period performance.
The chart connects verified session closes from June 23, 2026 through September 17, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+0.47%
From the September 10, 2026 close of $2.11 to $2.12 on September 17, 2026.
20-session performance
-5.78%
From the August 19, 2026 close of $2.25 to $2.12 on September 17, 2026.
60-session performance
-21.77%
From the June 23, 2026 close of $2.71 to $2.12 on September 17, 2026.
Verified data
- Open
- $2.075
- High
- $2.185
- Low
- $2.07
- Close
- $2.12
- Volume
- 61,379,545
- Prior-close change
- +$0.10 (+4.95%)
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Read the frequently asked questions.
What was Plug Power's closing price on September 17, 2026?
Plug Power closed at $2.12 on September 17, 2026.
What were Plug Power's open, high and low on September 17, 2026?
The open was $2.075, the high was $2.185 and the low was $2.07.
How much did Plug Power change from the prior close on September 17, 2026?
The change from the prior close was +$0.10 (+4.95%).
What was Plug Power's volume on September 17, 2026?
Trading volume was 61,379,545 shares.
What is the source for Plug Power's daily prices?
Daily aggregate prices are provided by Polygon.