TeraWulf leased its Justified Data campus in Hawesville, Kentucky to Anthropic for two decades, in a deal expected to generate roughly $19 billion in revenue — a figure larger than the bitcoin miner's own market value going into the announcement.
TeraWulf signed a 20-year lease with Anthropic on Monday to supply about 401 megawatts of capacity at its Justified Data campus in Hawesville, Kentucky. The contract is expected to generate roughly $19 billion in revenue over its initial term. TeraWulf's market capitalisation before the disclosure sat around $12 billion, which means the miner has just committed to a single tenant whose cheques will outsize the company it signed with.
The shares reacted accordingly — they jumped more than 16 per cent in premarket trading. That is not the reaction of a market that considers the risk fully priced. Anthropic is the counterparty behind Claude, one of the two frontier AI labs still burning through GPUs faster than it can install them, and it now has a two-decade claim on power that was originally scoped to hash bitcoin blocks.
First power is scheduled to arrive in the second half of 2027. The campus is being built out in phases, with full 401 MW capacity expected online by early 2028. Nothing about the deal delivers revenue this year or next; every dollar is deferred until the substation is energised and the first row of racks is drawing load. For a miner that has spent 2026 watching its core business shrink under a hashprice hovering near $29 per petahash per day, that timeline is both the point and the risk.
TeraWulf disclosed the Anthropic contract alongside a separate transaction: the sale of its 50 per cent interest in a 168 MW site in Abernathy, Texas to an investor group led by Fluidstack. The Abernathy deal frees up capital and headcount, but it also confirms what the market has suspected for six months. Publicly listed miners are no longer trying to run two businesses. They are becoming landlords for hyperscalers, and the bitcoin machines are the mortgage that got them the land.
The economics of that pivot look brutal on paper for anyone still selling picks and shovels to bitcoin miners. TeraWulf's Kentucky site sits near the Ohio River in a rural county with excess grid interconnect capacity — the exact profile that a decade of cheap-power arbitrage taught the industry to find first. Anthropic gets a substation, cooling infrastructure, and a permitting story that would have taken a greenfield hyperscaler three years to replicate. TeraWulf gets a customer whose credit worthiness is materially better than its own.
Fred Thiel's Marathon has been running the same play from a different angle; MARA sold 20,880 bitcoin for $1.5 billion earlier in the year and refiled its Q1 as a compute company. Riot has moved slower. Both had the option to go this route before TeraWulf did, and both watched Paul Prager's team close the largest contract in the miner-to-AI transition to date.
The industrial thesis is now clear. The scarce input is not silicon or cooling; it is grid access. Every megawatt of interconnect that was signed for hashing between 2019 and 2023 is now a call option on hyperscale demand — and the strike price is whatever a lab like Anthropic will pay to skip the queue. TeraWulf's disclosure prices the option at about $47 million per megawatt over 20 years, which is a number every mining CFO in the country will be running against their own book by close of business.
There is a bitcoin-specific consequence too. About 1.3 per cent of the network's hashrate is already scheduled to disappear when SBI Crypto shuts down its mining pool at the end of the month. TeraWulf's 401 MW was never all pointed at SHA-256 — a chunk was already colocated for hyperscale — but the message to the rest of the industry is that the redirection is now a written contract, not a slide-deck ambition. Miners operating at a loss under $78,000 per coin have watched one of their peers exit the trade in a way that pays the mortgage until 2047.
That leaves the question of what happens to the mining side of TeraWulf's book. The company still runs SHA-256 operations at its New York and Pennsylvania sites; nothing announced Monday changes that. But the balance sheet has now been rewritten around a customer whose success depends on model training, not block subsidy. Anthropic's credit — and Anthropic's willingness to keep signing 20-year leases at similar terms — is the primary variable in the miner's enterprise value now.
The 8-K filed with the SEC on Monday put the initial contracted revenue at approximately $19 billion. TeraWulf's own investor relations page carries the same figure. Neither document commits to what happens if Anthropic decides — three or five years from now — that inference has moved to the edge and the Kentucky substation is more capacity than it needs.
