AI leases are overtaking Bitcoin
- HPC leasing became the majority of revenue in Q1 2026, reaching 62% of total revenue.
- Management now expects to leave Bitcoin mining by the next halving and focus on AI data centers.
- A more than $1.2 billion equity raise and a $250 million revolver lowered near-term funding pressure.
- The first HPC margin was only about 50%, well below the long-term 85% target, because of fit-out and ramp costs.
- The big question is whether TeraWulf can build many large sites on time while the stock already reflects high hopes.
A fast pivot, not a proven finish
TeraWulf has crossed the line from Bitcoin miner to AI infrastructure story. In Q1 2026, HPC leasing was 62% of total revenue. That matters because leasing data center power and space can be more stable than mining Bitcoin, where revenue moves with coin price, network difficulty, and power costs.
The bull case is clear. TeraWulf controls power-rich sites at a time when AI customers need huge amounts of electricity. It has signed major leases, delivered the initial 60 MW CB-2 facility for Core42, and has a 10-year 360 MW AI hosting agreement with Fluidstack that is backstopped by Google. Management also says it will likely be out of Bitcoin mining by the next halving.
The bear case is not that demand is weak. It is that the move is hard. Q1 HPC segment profit margin was about 50%, far below the 85% long-term guide, because of tenant fit-out and pre-revenue scale-up costs. Building data centers, power systems, and customer-ready halls across several sites at once leaves little room for mistakes.
Financing risk looks lower after the company raised more than $1.2 billion of equity in April and May 2026 and added a $250 million revolver. But this is still a high-expectation stock with a heavy build plan. The next proof points are a flagship Kentucky tenant, FERC approval for Morgantown, and clean execution at the 168 MW Abernathy site.
Selling scarce power as AI space
TeraWulf makes money by turning power access into data center leases. Its old business used power to mine Bitcoin. Its new business leases high-performance computing, or HPC, space to customers that run AI and cloud workloads.
The company prefers colocation customers, which means customers rent space, power, cooling, and network-ready infrastructure while often bringing their own servers. TeraWulf believes this can earn higher yields than signing only the largest cloud buyers, often called hyperscalers.
The newer plan is to build campuses that bring their own generation. That means TeraWulf may pair data centers with power plants, gas generation, and battery storage, instead of only waiting for grid connections. Morgantown is the clearest example, with a plan that includes dispatchable generation, battery storage, and data center load.
The model breaks if construction runs late, customer equipment does not arrive, power prices spike, or build costs rise faster than lease economics. Google-backed lease support helps lenders trust the cash flows, but it does not pour concrete, secure turbines, or solve every supply-chain delay.
From mining rigs to leased megawatts
Lake Mariner HPC leasing
Lake Mariner is the first proof point for the pivot. As of Q1 2026, it had 60 MW of critical IT HPC capacity and the initial CB-2 facility for Core42 was fully delivered.
Fluidstack AI hosting
The 10-year 360 MW Fluidstack agreement is the anchor AI lease. Google backstops lease obligations, which improves the credit profile of the project.
Abernathy campus
Abernathy is a Texas joint venture owned 50.1% by TeraWulf and 49.9% by Fluidstack. The current filing says 168 MW of critical IT load is the full build-out of the site.
Cayuga site
Cayuga is a long-term ground lease in Lansing, New York. It has potential for up to 400 MW of gross capacity, supporting about 320 MW of critical IT load.
Kentucky Hawesville campus
Hawesville is a 480 MW campus at a former smelter with immediate power availability. Management is targeting operations in the second half of 2027.
Legacy Bitcoin mining
Bitcoin mining still supplied 38% of Q1 2026 revenue, but it is being phased out. Management expects to exit the business by the next halving.
The revenue mix has flipped
This mix is from Q1 2026, when TeraWulf disclosed that HPC leasing was 62% of total revenue. Bitcoin mining is still meaningful, but it is now the shrinking side of the company.
What could break the pivot
Build-out delays
High impact · Medium oddsTeraWulf is trying to build large AI data centers across several campuses at the same time. Delays in power equipment, cooling, permitting, or construction would push out revenue while costs keep running.
HPC margins stay low
High impact · Medium oddsQ1 2026 HPC segment profit margin was about 50%, compared with long-term guidance of about 85%. Management says this was caused by tenant fit-out and pre-revenue scale-up costs. If margins do not rise as halls fill, the market may question the whole lease model.
Power price spikes
Medium impact · Medium oddsLake Mariner has exposure to floating power prices in New York Zone A. Severe winter price spikes already showed how volatile power can hurt near-term cash flow, especially while Bitcoin mining still exists.
GPU supply bottlenecks
Medium impact · Medium oddsColocation customers need GPUs, especially NVIDIA systems, to fill leased data center halls. If customers cannot get hardware allocations, TeraWulf may finish buildings before tenants can fully use them.
Tariffs and equipment inflation
Medium impact · Medium oddsManagement has flagged tariff pressure that could add 5% to 10% to build costs. Higher construction costs can reduce returns, even if lease demand stays strong.
Site limits and approval risk
Medium impact · Medium oddsThe 2025 Form 10-K says Abernathy's 168 MW is the full build-out of that site, which limits regional upside there. Morgantown also still depends on a closing and regulatory approval path.
In one breath
Is TeraWulf still a Bitcoin mining company?
Partly, but that is no longer the main story. In Q1 2026, HPC leasing was 62% of total revenue, and management said it will likely exit Bitcoin mining by the next halving.
What does HPC mean for TeraWulf?
HPC means high-performance computing. For TeraWulf, it means leasing data center power, cooling, and space to customers running AI or cloud workloads.
Why does Google matter to the TeraWulf story?
Google is backstopping Fluidstack lease obligations, including a $1.8 billion support arrangement tied to warrants. That can make TeraWulf's lease cash flows easier to finance, but it does not remove construction risk.
What is the next major thing to watch?
Watch whether TeraWulf signs a flagship Kentucky tenant, receives approval for Morgantown, and builds Abernathy on schedule. Also watch whether HPC margins move closer to the 85% long-term target.