TeraWulf’s 20-Year Anthropic Deal Reprices Bitcoin Miners as AI Powerhouses

Traders are recalibrating how they value Bitcoin miners after TeraWulf locked in a 20-year lease with Anthropic that is expected to generate roughly $19 billion in revenue. Shares of TeraWulf (WULF) jumped nearly 14% to $24.05, and the move spilled over to peers leaning into high-performance compute.

- IREN up more than 13% - Hut 8 up 12% - Cipher Digital up 11% - Keel Infrastructure (formerly Bitfarms), which has exited mining to focus solely on AI, up 10%

Here’s the shift that matters: cash-flow visibility. Mining equity often trades on a blend of hashprice beta, expansion optionality, and balance-sheet stamina. A multi-decade, investment-grade-supported lease tied to AI demand introduces a very different profile—long-dated, contracted revenue that can compress cost of capital and support bigger, cheaper builds.

Under the agreement, Anthropic will occupy a purpose-built campus at TeraWulf’s Justified Data site in Hawesville, Kentucky. The facility is slated to support about 401 megawatts of compute, with phase one targeted for the second half of 2027 and full capacity expected by early 2028. The lease is expected to carry investment-grade credit support—critical for project financing and vendor terms. Anthropic, developer of the Claude AI assistant, has been racing to secure power and data center capacity as model training scales.

TeraWulf is also re-cutting its portfolio to fit this thesis. The company agreed to sell its 50.1% stake in the Abernathy Joint Venture—a Texas data center project built with partner Fluidstack—to an investor group led by Fluidstack. That transaction monetizes approximately $450 million of invested capital at a premium, with Fluidstack stepping in to lead the project going forward. Recycling capital out of Texas while anchoring Hawesville with a long-term tenant looks like a deliberate tilt toward contracted AI workloads over merchant exposure.

Execution will still decide outcomes. Converting 401 MW into usable AI capacity requires grid interconnects, power contracts that survive price spikes, and supply chains for substations, transformers, and liquid-cooled racks. The 2027–2028 timeline introduces interest-rate and equipment-cost risk. But the counterweight is duration and credit: contracted revenue can shoulder debt service even when hashprice wobbles, softening cyclical shocks that often punish mining-heavy balance sheets.

Psychologically, the market seems to prefer miners that control energy and infrastructure and can toggle between Bitcoin and AI compute. It’s a narrative that rewards optionality but ultimately hinges on uptime economics. If AI training demand persists, contracted MWs earn a multiple premium; if demand normalizes, flexible assets can slide back toward mining. That dual-use story is pulling capital because it offers more ways to win than a pure hashprice bet.

There is also an ethical and community dimension that investors occasionally overlook. Concentrating hundreds of megawatts in Hawesville will put scrutiny on local grid reliability, energy sourcing, and economic impact. Firms that proactively structure community benefits, transparent power procurement, and efficiency upgrades often face fewer permitting bottlenecks and enjoy steadier policy support—an underappreciated source of valuation resilience.

Management had previously guided that the Justified Data campus, acquired in February, would land a marquee customer around the end of Q2 2026. The timing of today’s deal reflects the close of documentation and customary processes—useful signal that demand for long-dated AI capacity remains intact even as markets debate training spend cycles.

For miners, the takeaway is clear: the market is starting to pay for contracted AI compute with credible power and timelines. Those that can underwrite similar, investment-grade-supported agreements may continue to detach from pure mining comps. Those that cannot may find their multiples tethered to hashprice volatility again.