IONQ Inc vs Plug Power Inc — how do they compare? IONQ Inc trades at $43.38 (market cap $17.23B), while Plug Power Inc trades at $2.22 (market cap $2.94B). The key difference: IONQ Inc is far larger — about 5.9× Plug Power Inc's market cap. Which is the better fit depends on your goals.
| IONQ | PLUG | |
|---|---|---|
Market Cap | $17.23B | $2.94B |
Sector | Technology | Industrials |
52-Week High | $82.09 | $4.14 |
52-Week Low | $26.59 | $1.41 |
Enterprise Value | $15.17B | $3.73B |
Signals from Pluang's Aura AI — not financial advice
IONQ stock trades at $44.43, up 11.86% in 24 hours, with a bullish technical signal and strong revenue growth of 287% year-over-year in Q2 2026. The company reported a Q2 EPS miss but revenue beat, raised its 2026 outlook, and secured a $28 million defense contract. Valuation ratios are elevated with a P/E of 102.38 and P/S of 59.02, while profitability remains negative with a net income margin of -553.27% in 2026.
Outlook is optimistic due to quantum computing demand and analyst consensus price target of $73.33, but risks include high cash burn, intense competition, and reliance on speculative technology. Investors should weigh growth potential against persistent losses and dilution concerns from recent share issuance.
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
IonQ is a leader in quantum computing, developing world-class quantum systems. Its technology aims to solve complex problems across finance, healthcare, and materials science that are beyond classical computers.
Read more on IONQ →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 →