CleanSpark Inc vs Fastly Inc — how do they compare? CleanSpark Inc trades at $11.99 (market cap $2.96B), while Fastly Inc trades at $29.11 (market cap $4.58B). The key difference: Fastly Inc is the larger of the two by market cap, and Fastly Inc is trading nearer its 52-week high, CleanSpark Inc nearer its low. Which is the better fit depends on your goals.
| CLSK | FSLY | |
|---|---|---|
Market Cap | $2.96B | $4.58B |
Sector | Technology | Technology |
52-Week High | $23.20 | $33.50 |
52-Week Low | $8.18 | $6.85 |
Enterprise Value | $3.95B | $4.65B |
Signals from Pluang's Aura AI — not financial advice
CleanSpark (CLSK) trades at $12.23, up 5.52% today but showing bearish technical signals with recent earnings misses. The company reported a Q3 2026 loss of $0.89 per share versus expectations of $0.47, continuing a trend of negative profitability despite securing a significant $6.6 billion AI data center lease. Revenue declined to $679 million in 2026 with a negative profit margin of -146.91%, though analyst consensus remains unanimously bullish with a $24.13 price target.
The stock presents a high-risk opportunity with strong institutional support but significant fundamental challenges. While the AI infrastructure pivot offers long-term potential, near-term execution risks and persistent losses require careful monitoring. The 100% buy rating from analysts suggests confidence in the strategic shift, but investors must weigh the substantial valuation premium against ongoing cash burn and competitive pressures.
Fastly (FSLY) surged 20.86% to $27.75, approaching its consensus price target of $28.25, driven by strong Q2 2026 earnings that beat estimates with $0.15 EPS versus $0.07 expected. Revenue grew 23% year-over-year to $624M in 2025, with improving margins and raised 2026 guidance. Technical indicators show bullish momentum with the stock trading near pivot point resistance at $30, though RSI levels suggest overbought conditions. The company is benefiting from AI-driven demand and security product expansion.
While Fastly shows promising revenue growth and consecutive earnings beats, the stock faces headwinds from negative profitability metrics and cash flow challenges. The net income margin remains negative at -11.8% despite improvement, and the company burned $105.6M in cash during 2025. Analyst sentiment is mixed with 29% buy ratings versus 65% hold, indicating cautious optimism amid execution risks in the competitive edge cloud market.
Trailing returns across standard periods
Latest headlines on both assets
CleanSpark is a leading Bitcoin mining company that operates high-density data centers. It focuses on using sustainable energy to power its mining fleet and provides digital infrastructure for the blockchain ecosystem.
Read more on CLSK →Fastly operates a content delivery network, which is necessary for entities to provide faster and more reliable online content. Fastly's strategy differs from traditional CDNs, which focused on locating servers in as many locations as possible to store copies of files that consumers most use. Fastly has far fewer sites than traditional CDNs, but it houses servers in the most network-dense data centers. Instead of simply storing static content, it allows its customers to program on its platform, enabling edge computing and better service of the more dynamic content that was traditionally not well served by CDNs. Fastly gears its service to the largest, most sophisticated enterprises rather than small companies and generated about two thirds of its revenue in the United States in 2020.
Read more on FSLY →