Today: 3 July 2026
Plug Power (PLUG) short interest in focus ahead of the holiday week

Plug Power (PLUG) short interest in focus ahead of the holiday week

NEW YORK, July 3, 2026, 09:13 EDT

  • U.S. stock markets will be closed Friday for the Independence Day holiday. The Nasdaq lists July 3 as a market holiday.
  • Plug Power closed unchanged at $2.64 Thursday, with shares moving between $2.51 and $2.80. Volume totaled 60.8 million.
  • PLUG traded about 306 million shares over five days, around 23% of its public float. Short interest was 25.5% of float as of June 15, according to .
  • PLUG climbed 3.94% over five days, topping the Nasdaq’s 2.1% move for the week, though shares are still down 17.88% for the month.

Plug Power Inc. heads into the extended U.S. weekend stuck in a holding pattern. Nearly 25% of its public float traded over five days, but the stock closed Thursday flat against Wednesday’s finish.

PLUG finished at $2.64 on July 2. Shares traded in a range between $2.51 and $2.80, swinging about 11.6% from the session low to high. Volume hit 60.8 million, worth around $160.5 million at the close, making up about 4.4% of Plug’s $3.67 billion market cap.

Price data for the past five sessions is as follows:

DateCloseDaily moveVolume
June 26$2.54-1.17%95.67 mln
June 29$2.59+1.97%44.63 mln
June 30$2.71+4.63%55.85 mln
July 1$2.64-2.58%49.49 mln
July 2$2.64flat60.80 mln

This totals around 306.4 million shares. MarketWatch says PLUG has a public float of 1.33 billion shares and short interest of 339.62 million shares, or 25.50% of the float, as of June 15. The shorts represent 4.6 days of typical trading volume.

PLUG traded with some breathing space as the broader market moved around. Reuters said the Dow finished up 1.14% on Thursday. The S&P 500 was flat. Nasdaq Composite dropped 0.80%. Over the week, the Dow was up about 2%, while the S&P 500 rose 1.8% and Nasdaq climbed 2.1%. Adam Sarhan, CEO at 50 Park Investments, said a softer jobs report “takes the pressure off the Fed” in the near term. Reuters

Clean energy and fuel cell stocks lagged PLUG in the last U.S. session ahead of the holiday:

SecurityLatest closeDay moveVolumeMarket value
Plug Power Inc. $2.64unch60.80 mln$3.67 bln
iShares Global Clean Energy ETF $19.67down 2.48%4.39 mln
FuelCell Energy Inc. $28.11fell 11.89%11.79 mln$1.52 bln
Ballard Power Systems Inc. $3.52dropped 7.35%6.16 mln$1.05 bln
Bloom Energy Corp. $270.89off 6.37%15.78 mln$86.61 bln
First Solar Inc. $224.57slipped 3.27%2.60 mln$24.17 bln

PLUG ended the day unchanged, but ICLN and other fuel-cell stocks dropped during Thursday’s trading.

Plug hasn’t posted any new releases to its press section over the past 48 hours. The most recent is dated June 24, when the company said it had finished commissioning a 5 MW GenEco PEM electrolyzer at European Energy’s Måde Power-to-X project in Denmark.

The project is small compared to Plug’s market cap, but it’s important because investors are watching if the company can turn single projects into steady business. The Måde facility should make about 550 metric tons of green hydrogen a year once it’s running at full tilt. Plug said it now has over 70 GenEco electrolyzer units running on six continents. CEO José Luis Crespo said Plug is moving “from one-off deployments to repeatable execution.” GlobeNewswire

Plug’s cash remains tight. For the first quarter, Plug posted $163.5 million in revenue, up 22% from a year ago. GAAP gross margin improved, still negative 13%, compared to negative 55% a year earlier. Adjusted loss per share shrank to 8 cents from 17 cents. Plug finished the quarter with over $802 million in total cash, split between $223 million unrestricted and $579 million restricted.

Plug said June 2 it has closed the sale of a federal investment tax credit worth about $39.2 million, tied to the St. Gabriel, Louisiana hydrogen liquefaction plant it runs through the Hidrogenii JV with Olin Corp. . The facility can liquefy 15 tons of hydrogen a day. CFO Paul Middleton said the move will “optimize capital deployment.” GlobeNewswire

Week-ahead markerInvestor read
July 6 U.S. reopenMarket’s first full session after the July 4th holiday break
$2.51-$2.80Band for Thursday; trading above or below that could change the short-term setup
339.62 mln shares shortShort interest on June 15 bigger than PLUG’s entire trade last week
No company release after June 24Price action likely will follow macro trends, peers, and flows more than company headlines

Michał Rogucki is a senior markets reporter at TS2.tech, specializing in stocks, technology and macroeconomic developments. A graduate of Humboldt University of Berlin, he previously worked in investment research and market analysis before transitioning to financial journalism. He covers the trends and events that matter most to investors worldwide.

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