Anthropic has signed a $9.1 billion agreement with Riot Platforms, a bitcoin mining company, for a 20-year lease at Riot's Rockdale, Texas, campus, which will supply 191 megawatts of IT capacity through June 2048. Two five-year extension options could raise the total contract value to $16.1 billion. Riot plans to bring capacity online in stages, reaching 96 megawatts by December 2027 and completing the full 191-megawatt buildout by June 2028. To fund early construction, Riot arranged a $573 million interim financing facility through Morgan Stanley. Riot CEO Jason Les said the two agreements bring the company's total signed capacity to 241 megawatts and roughly $9.8 billion in long-term contracted revenue, accumulated within six months; the earlier deal was with Advanced Micro Devices. Riot stock closed down 5.46% on Monday before the deal was announced, then surged more than 25% in after-hours trading. The deal was announced alongside Riot's second-quarter financial results, which showed total revenue of $174.2 million for the three months ended June 30, up 14% from $153 million a year earlier. Bitcoin mining contributed $113.7 million, while data center revenue was $23.2 million. Riot swung to a net loss of $237.2 million, or $0.68 per diluted share, compared with net income of $