Plug Power stock heads into the open after a 1.5 percent drop

Plug Power stock closed at USD 2.02 on the Nasdaq on September 16, 2026, representing a 1.46% decline from the prior close in regular trading. Per Nasdaq data, the shares moved within a session range of USD 1.98 to USD 2.09 on reported volume of about 47.2 million shares, indicating active trading ahead of today's session. Compared with hydrogen fuel cell peers, Plug Power lagged, as Bloom Energy advanced while FuelCell Energy ticked higher on the same day.

September 16, 2026 in numbers

Plug Power Inc. (ISIN US72919P2020, Nasdaq: PLUG) ended the last completed Nasdaq session on September 16, 2026 at USD 2.02, down 1.46% on the day, based on closing data that show a prior close near USD 2.05. Quote overviews report that the shares traded between an intraday low of USD 1.98 and a high of USD 2.09, with roughly 47.2 million shares changing hands, underscoring strong turnover for a stock in this price range. A detailed session table from a Nasdaq-focused chart service lists the September 16, 2026 close at USD 2.02 with a -1.46% daily return, a high at USD 2.09, a low at USD 1.98 and volume of 47.16 million shares, confirming the session profile across independent data sources.

In sector context, Plug Power underperformed several hydrogen and fuel cell peers in the same session. As 24/7 Wall St reported on September 16, 2026, Bloom Energy shares gained around 4% as investors positioned for the company's upcoming inclusion in the S&P 500, while FuelCell Energy edged higher and Plug Power slipped to roughly USD 2.03 intraday. That divergence left Plug Power trailing a peer that was buoyed by index-related flows. Broadly, technology and growth stocks came under pressure after the latest interest rate decision. According to a market wrap from Zacks on September 16, 2026, the Nasdaq Composite fell 0.8% to close at 25,981.57 after the Federal Reserve raised interest rates, a backdrop that tends to weigh on speculative and higher-beta names such as hydrogen and fuel cell stocks.

Outlook for today, September 17, 2026

The company does not have a confirmed earnings release or major corporate event scheduled for today in the available calendars, but investors remain attentive to the broader environment for clean energy and hydrogen-related equities. An earnings and event overview on MarketBeat indicates that Plug Power last reported quarterly results on August 10, 2026 and lists an estimated next earnings date of November 9, 2026, so today's trading is likely to be driven more by sector sentiment and macro data than by company-specific disclosures. In the macro backdrop, investors continue to digest the Federal Reserve's latest rate hike and its implications for growth stocks, as summarized in the September 16, 2026 market commentary from Zacks, and any further signals on interest rate expectations or clean energy policy could therefore influence Plug Power's share price into today's session.