Bitcoin miners' pivot into artificial intelligence and high-performance computing (HPC) is reshaping their business models, but investors are no longer rewarding new infrastructure deals with the same enthusiasm they once did, suggesting the market has become more discerning as AI hosting strategies move into the mainstream. The trend took on added urgency after Bitcoin's April 2024 halving cut block rewards from 6.25 to 3.125 BTC, compressing mining margins and pushing operators to monetize their most valuable asset: large-scale power infrastructure, grid connections, and purpose-built data center facilities that are difficult and time-consuming to replicate.

According to new analysis by Blocksbridge Consulting published in TheEnergyMag's Miner Weekly, the market reaction to AI infrastructure announcements has weakened significantly over the past two years. The report reviewed 25 AI and HPC infrastructure deals announced between June 2024 and August 2026, finding that the average announcement-day stock move fell from roughly 24% for the earliest deals to about 10% for the most recent ones. Median gains also dropped by roughly half over the same period, even as the size and value of the contracts increased.

The report found that annualized revenue per contracted megawatt has edged higher over time, indicating that AI hosting agreements are becoming more lucrative. However, as such deals become increasingly common, investors appear to be placing greater emphasis on execution, financing, and long-term profitability than on headline contract values alone — a shift that mirrors broader questions across the AI infrastructure sector about which companies can actually deliver on ambitious buildout timelines amid tightening power and equipment supply chains.

That shift is evident in how the market has responded to major announcements. Core Scientific's initial hosting agreement with CoreWeave sent its shares up more than 40%, while Applied Digital's first CoreWeave lease gained nearly 49% and TeraWulf's first Fluidstack deal surged almost 60%.

More recent mega-deals have drawn a much more muted response. TeraWulf's 401-megawatt lease with Anthropic lifted its shares by about 5%, CleanSpark's $6.6 billion AI hosting agreement gained nearly 9%, and Bitdeer's new Tydal contract briefly pushed the stock up roughly 12% before those gains disappeared by the market close.

Bitcoin mining stocks reflect cooling AI enthusiasm

The performance of Bitcoin mining stocks that have embraced AI and HPC workloads also reflects the market's cooling enthusiasm. TheEnergyMag's TEM AI Infrastructure Growth Index, which tracks publicly traded companies developing AI data center and digital infrastructure businesses, is down roughly 28.5% from its June peak, suggesting investors have become more cautious even as AI infrastructure demand remains strong.

While the TEM AI Infrastructure Growth Index remains sharply higher over the past year, its momentum has slowed in recent months.

The slowdown mirrors a broader pullback in AI infrastructure stocks, with the Philadelphia Semiconductor Index falling nearly 17% from its July peak. For Bitcoin miners specifically, the question now facing investors is whether early AI hosting deals will translate into durable, high-margin revenue streams or whether competition from purpose-built hyperscale data center operators — combined with the capital costs of upgrading facilities for AI workloads — will narrow the advantage that access to existing power infrastructure once provided.