Aspen Aerogels Inc vs Plug Power Inc — how do they compare? Aspen Aerogels Inc trades at $5.25 (market cap $427.65M), while Plug Power Inc trades at $2.22 (market cap $3.11B). The key difference: Plug Power Inc is far larger — about 7.3× 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 | $427.65M | $3.11B |
Sector | Technology | Industrials |
52-Week High | $8.82 | $4.14 |
52-Week Low | $2.57 | $1.40 |
Enterprise Value | $382.60M | $3.90B |
Signals from Pluang's Aura AI — not financial advice
ASPN trades at $5.16, down 1.53% on the day, with a bearish technical signal despite oversold RSI readings. The company reported a Q1 2026 loss of $0.28 per share, missing estimates, but revenue beat expectations. Recent news includes a 2025 Supplier of the Year award from General Motors and the staged restart of its East Providence facility. Financials show significant net losses but improving cash flow trends into 2026.
Outlook remains challenging with persistent losses and negative margins, though analyst consensus is strongly bullish (83% buy ratings). Key risks include execution on facility restarts and EV demand volatility. The stock offers high-risk growth potential if operational improvements and electrification trends accelerate profitability.
PLUG trades at $2.23, down 6.3% on the day, with a bearish technical signal and negative cash flows. The company reported a net loss of $1.63 billion in 2025 despite revenue of $710 million, with gross profit margin at -25.66%. Recent news includes a 50MW electrolyzer order for the Hunter Valley Hydrogen Hub in Australia, but the stock faces pressure from analyst target cuts and high short interest of 27.4%.
Outlook remains challenged by persistent losses and cash burn, though analyst consensus suggests 31% upside to the $2.92 target. Key risks include delayed profitability targets beyond 2028 and reliance on financing amid negative operating cash flow. The stock's viability hinges on successful project execution and hydrogen market adoption.
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 →