Plug Power (PLUG) went public on October 29, 1999, when it opened at a split-adjusted price of $157.50.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
May 2026 | $3.15 | $3.18 | $3.04 | $3.11 | 36,599,724 |
April 2026 | $2.28 | $3.44 | $2.19 | $3.13 | 1,581,339,387 |
March 2026 | $1.72 | $2.50 | $1.72 | $2.26 | 1,768,599,664 |
February 2026 | $2.12 | $2.21 | $1.76 | $1.79 | 1,752,940,841 |
January 2026 | $2.00 | $2.66 | $2.00 | $2.12 | 2,171,362,451 |
December 2025 | $1.96 | $2.49 | $1.89 | $1.97 | 2,058,680,264 |
November 2025 | $2.78 | $2.93 | $1.70 | $2.01 | 2,234,282,881 |
October 2025 | $2.43 | $4.58 | $2.40 | $2.69 | 3,758,906,767 |
September 2025 | $1.51 | $3.16 | $1.41 | $2.33 | 2,077,601,857 |
August 2025 | $1.42 | $1.75 | $1.39 | $1.57 | 907,993,496 |
July 2025 | $1.45 | $2.03 | $1.34 | $1.50 | 1,752,503,918 |
June 2025 | $0.85 | $1.57 | $0.81 | $1.49 | 2,199,688,813 |
May 2025 | $0.90 | $1.03 | $0.69 | $0.88 | 3,289,712,429 |
April 2025 | $1.35 | $1.36 | $0.76 | $0.87 | 1,838,507,098 |
March 2025 | $1.61 | $1.81 | $1.26 | $1.35 | 1,338,378,381 |
February 2025 | $1.79 | $2.03 | $1.52 | $1.61 | 1,058,559,687 |
January 2025 | $2.19 | $3.32 | $1.82 | $1.86 | 1,581,699,654 |
December 2024 | $2.30 | $2.86 | $1.96 | $2.13 | 1,327,901,597 |
November 2024 | $1.99 | $2.62 | $1.79 | $2.24 | 1,348,635,356 |
October 2024 | $2.25 | $2.42 | $1.94 | $1.96 | 899,092,640 |
September 2024 | $1.87 | $2.30 | $1.60 | $2.26 | 799,016,662 |
August 2024 | $2.47 | $2.53 | $1.86 | $1.88 | 772,053,906 |
July 2024 | $2.35 | $3.34 | $2.21 | $2.47 | 911,963,364 |
June 2024 | $3.47 | $3.55 | $2.31 | $2.33 | 636,599,625 |
May 2024 | $2.31 | $4.90 | $2.28 | $3.33 | 987,011,850 |