Aspen Aerogels Inc vs Plug Power Inc — how do they compare? Aspen Aerogels Inc trades at $6.13 (market cap $522.00M), while Plug Power Inc trades at $2.22 (market cap $2.94B). The key difference: Plug Power Inc is far larger — about 5.6× Aspen Aerogels Inc's market cap, and Aspen Aerogels Inc is trading nearer its 52-week high, Plug Power Inc nearer its low. Which is the better fit depends on your goals.
| ASPN | PLUG | |
|---|---|---|
Market Cap | $522.00M | $2.94B |
Sector | Technology | Industrials |
52-Week High | $8.82 | $4.14 |
52-Week Low | $2.57 | $1.41 |
Enterprise Value | $495.40M | $3.73B |
Signals from Pluang's Aura AI — not financial advice
ASPN's stock trades at $6.25, down 9.29% in the past 24 hours, with a bullish technical signal from moving averages but neutral oscillators. The company reported a net loss of $389.55M in 2025, with negative profit margins, though Q2 2026 revenue beat estimates and Q3 guidance projects sequential improvement. Recent news highlights growing Thermal Barrier sales and a Supplier of the Year award from General Motors.
The outlook remains speculative; analyst consensus is strongly bullish (82.61% buy ratings), but persistent losses and high cash burn pose significant risks. Upside depends on execution of revenue growth and cost management, while downside risks include competitive pressures and failure to achieve profitability.
Plug Power (PLUG) trades at $2.18, up 5.31% with a bearish technical signal despite recent earnings beat. The company shows improving operational metrics with reduced cash usage and margin improvements, though it remains unprofitable with negative gross margins of -25.66%. Management targets positive EBITDA by Q4 2026 while navigating significant liquidity challenges through asset sales and financing activities.
While analyst consensus leans bullish with a $2.22 price target, PLUG faces substantial execution risks amid persistent losses and cash burn. The stock offers speculative upside if management delivers on profitability targets, but investors face elevated risk from the company's negative cash flow and competitive hydrogen market pressures.
Trailing returns across standard periods
Latest headlines on both assets
Aspen Aerogels is an aerogel technology company that designs high-performance insulation. Its products are used in energy infrastructure and electric vehicles to provide thermal management and fire protection.
Read more on ASPN →Plug Power is building an end-to-end green hydrogen ecosystem—from production, storage and delivery to energy generation. The company plans to build and operate green hydrogen highways across North America and Europe. Plug will deliver its green hydrogen solutions directly to its customers and through joint venture partners into multiple end markets—including material handling, e-mobility, power generation, and industrial applications.
Read more on PLUG →