Shares of Riot Platforms (NASDAQ: RIOT) jumped 17% to $22.64 Tuesday morning after the company disclosed a landmark artificial intelligence data center lease agreement alongside its latest quarterly results. Combined with an existing lease with Advanced Micro Devices (NASDAQ: AMD), Riot now controls 241 MW of contracted capacity and roughly $9.8 billion of long-term contracted revenue. CEO Jason Les stated, “Today’s announcement of a landmark 20-year, 191-megawatt data center lease with a leading frontier AI lab marks a defining moment in our evolution into a leading developer of large-scale data centers.”