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Riot Platforms surges 18% on $9.1B Anthropic deal as crypto mining peers lag

Reported by Investing.com
Aug 11, 2026· 2 min read
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Key Takeaways
  • • Anthropic secured a 20-year, $9.1 billion compute deal with Riot Platforms, locking in 191 megawatts of AI data center capacity from Riot's Rockdale, Texas facility through 2048.
  • • Riot Platforms shares surged approximately 25-26% in after-hours trading following the announcement, reflecting investor confidence in the company's pivot from Bitcoin mining to AI infrastructure provision.
  • • The agreement underscores Anthropic's aggressive strategy to secure adequate computing power to meet customer demand for its Claude AI services amid intensifying competition for scarce GPU capacity.
  • • The 191 megawatts of capacity is sufficient to power approximately 143,000 homes simultaneously, representing a substantial allocation of Riot's data center infrastructure to a single AI customer.
  • • The deal marks a strategic inflection point for Riot Platforms, demonstrating the financial viability of converting idle or repurposed Bitcoin mining infrastructure into long-term AI compute contracts.
Summary
Anthropic PBC has struck a $9.1 billion deal with Riot Platforms Inc., a Bitcoin mining company that recently diversified into AI data center services. The 20-year agreement, which extends through 2048, secures 191 megawatts of compute capacity from Riot's Rockdale, Texas campus to support Anthropic's Claude AI operations. According to Bloomberg and multiple news sources reporting on the transaction, the arrangement reflects Anthropic's intensifying efforts to lock in sufficient computing infrastructure to meet enterprise customer demand.

Riot Platforms announced the compute agreement on Monday without initially disclosing the counterparty. The company's description of the deal as a commitment to a "leading frontier AI" company was confirmed by sources familiar with the negotiations to be Anthropic. The capacity allocation—191 megawatts—equates to the electrical output needed to power approximately 143,000 homes simultaneously, representing a significant portion of Riot's data center infrastructure committed to a single customer over two decades.

Market reaction was swift and substantial. Riot's stock price jumped 25-26% in after-hours trading on the news, with shares reaching $24.40 in late trading sessions. The equity surge reflects investor recognition that Riot has successfully monetized its infrastructure transition from Bitcoin mining operations to AI compute provisioning, establishing a long-term revenue stream with a major AI company.

The deal underscores the ongoing infrastructure constraints facing large language model developers. Anthropic, like competitors including OpenAI and Google, faces intense pressure to secure GPU capacity and supporting infrastructure to scale operations and serve enterprise clients. The multibillion-dollar commitment to Riot signals that Anthropic views long-term, fixed-price compute agreements as a critical strategic resource in an environment where GPU availability remains constrained and pricing volatile.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Investing.com Riot Platforms surges 18% on $9.1B Anthropic deal as crypto mining peers lag