Plug Power Inc stock (US72919P2020): B. Riley lifts price target as shares trade below USD 4

Plug Power Inc shares on Nasdaq remain below USD 4 while B. Riley raised its price target to USD 5 in May, keeping focus on the US hydrogen specialist amid volatile trading.

Plug Power Inc shares on the Nasdaq in the United States continue to trade below USD 4, even as US broker B. Riley raised its price target to USD 5 in mid-May, keeping the hydrogen stock in focus for domestic and international investors.

According to recent price data, Plug Power traded around USD 3.95 per share with a market capitalization near USD 5.5 billion and a daily volume of roughly 68 million shares in late May 2026 on the Nasdaq under the ticker PLUG, highlighting ongoing high turnover in the US home market.

The stock price has been volatile in recent weeks, with closing levels around USD 3.31 to USD 3.95 over the second half of May 2026, reflecting shifting sentiment toward hydrogen and clean energy names on US exchanges amid changing interest-rate expectations and macroeconomic data.

On 05/20/2026, Plug Power closed near USD 3.31 after trading down from USD 3.45 the previous day, while earlier in the month it had also seen levels around USD 3.78, showing how quickly the share price can move on the Nasdaq as investors reassess risk appetite in US growth sectors.

For German investors, Plug Power is also accessible via secondary venues such as Tradegate, where the stock is quoted in euros and allows extended-hours trading, which often mirrors but does not always fully replicate price moves from the US primary listing during New York hours.

B. Riley, a US research house, adjusted its view on the stock on 05/12/2026 when it lifted the price target on Plug Power to USD 5 from USD 3 and reiterated a Buy rating, as reported in a research summary citing the firm’s ongoing project developments in green hydrogen.

The change in the target followed company updates around projects such as the Barrow green hydrogen initiative, and the higher fair value estimate from B. Riley was framed against a then-prevailing market price that was trading well below the new USD 5 level on the Nasdaq.

Despite the higher target from B. Riley, Plug Power’s share price has so far remained below that mark, continuing to oscillate in a range between roughly USD 3 and USD 4 through the second half of May 2026, which underscores a gap between some analyst models and what the US equity market is currently willing to pay.

In the context of the wider US equity market, hydrogen and fuel-cell related stocks such as Plug Power remain sensitive to macro indicators like inflation readings and interest-rate expectations, which have driven sector-wide swings across clean energy names on US exchanges this year.

Higher US Treasury yields and changing expectations for Federal Reserve rate cuts have tended to pressure long-duration growth stories, and Plug Power’s recent trading under USD 4 on the Nasdaq reflects that broader backdrop even as certain project milestones and analyst updates provide individual company news flow.

As of: 06/01/2026

By the editorial team - specialized in equity coverage.

At a glance

• Name: Plug Power
• Sector/industry: Hydrogen fuel cell and green hydrogen solutions
• Headquarters/country: Latham, United States
• Core markets: North America and Europe
• Key revenue drivers: Sale of fuel cell systems, electrolyzers and green hydrogen supply contracts for material-handling, mobility and stationary power customers
• Home exchange/listing venue: Nasdaq (PLUG)
• Trading currency: USD

Plug Power Inc: core business model

Plug Power develops and installs hydrogen-based fuel cell systems and electrolyzers while also supplying green hydrogen, aiming to generate revenue from equipment sales, service, and long-term hydrogen supply agreements across logistics, mobility, and industrial applications.

What banks and research houses say about Plug Power Inc

Analyst interest in Plug Power remains active in the United States, with one notable recent update coming from B. Riley on 05/12/2026, when the firm raised its price target to USD 5 from USD 3 and kept a Buy recommendation, reflecting confidence in the company’s project pipeline and positioning in the US green hydrogen ecosystem.

While B. Riley’s new target sits above the late-May market price around USD 3.95, the continued gap between the analyst valuation and the actual Nasdaq quotation shows that investors in the United States and abroad are still weighing execution risks, funding needs, and broader clean energy sentiment when assessing Plug Power’s share price.

Conclusion

Plug Power’s share price on the Nasdaq remains below USD 4 despite a higher USD 5 target from B. Riley in May, underscoring a divergence between at least one US research view and current market pricing.

For investors watching the US hydrogen sector, the combination of volatile trading, project-related headlines, and ongoing analyst attention means Plug Power is likely to stay in focus as markets reassess growth stories in the broader clean energy complex.

Disclaimer: This article does not constitute investment advice. The comprehensive scope of this informative article was made possible through the use of a.i.. Stocks are volatile financial instruments.