TeraWulf’s Earnings Call Shows Painful Pivot to HPC

Terawulf Inc. ((WULF)) has held its Q4 earnings call. Read on for the main highlights of the call.

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TeraWulf’s latest earnings call struck a sharply mixed tone, pairing heavyweight strategic wins with equally hefty short‑term financial pain. Management stressed that multibillion‑dollar high‑performance computing, or HPC, contracts, ample cash and project funding, and key site wins firmly anchor the long‑term story, even as GAAP losses, negative EBITDA, and higher costs weigh on current results.

Record HPC Deals and Financing Validate New Model

TeraWulf highlighted more than $12.8 billion of signed HPC lease agreements and $6.5 billion of debt and equity‑linked financing executed in the second half of 2025. Executives framed these contracts as proof that the company’s credit‑backed HPC leasing model and capital stack are resonating with blue‑chip customers and lenders.

Balance Sheet Fortified by Strong Liquidity

As of Dec. 31, 2025, cash and restricted cash totaled about $3.7 billion, underpinning a sizable build‑out pipeline. WULF Compute held roughly $3.0 billion gross cash and the Abernathy joint venture about $1.5 billion, and management said they do not expect to raise new equity to fund already contracted projects.

M&A and Site Control Build Long-Term Power Base

The company acquired full ownership of Beowulf Electricity & Data, bringing power generation expertise in‑house. It also secured long‑duration control of the Cayuga brownfield site, capable of up to 400 megawatts, and added around 1.5 gigawatts of additional power‑back capacity in Kentucky and Maryland.

Fluidstack–Google Deal Seen as Platform-Defining

Management spotlighted a 450 megawatt lease with Fluidstack that is backed by Google’s credit and paired with warrants. They described the agreement as platform‑defining evidence that TeraWulf can contract AI‑ready data center capacity at scale, and noted those warrants effectively make Google the company’s largest shareholder.

HPC Revenue Begins to Ramp as Mining Dominates

Full‑year 2025 revenue rose 20% to $168.5 million, but the mix remains heavily tilted toward legacy Bitcoin mining. HPC lease revenue is only starting to show up, reaching $9.7 million in the fourth quarter, up 35% versus the third quarter, with 18 megawatts of critical IT capacity energized by year‑end.

Design Tweaks Add Capacity and Revenue Upside

Standardized design and optimization boosted critical IT capacity in each Fluidstack building from 162 megawatts to 168 megawatts. Across the campus, the extra 12 megawatts are expected to deliver about $200 million of incremental lease revenue over the initial term and reduce projected debt maturities by roughly $45 million.

Steady Construction and Delivery Milestones

Operationally, TeraWulf delivered its WULF Den and CB1 facilities, both generating revenue in the fourth quarter. It also brought CB2A online for Core42, expects CB2B in March, CB3 by mid‑May, and is targeting lease commencements for CB4 and CB5 in the third and fourth quarters of 2026, while the Abernathy JV remains on track for late‑2026.

Power-First Strategy Underpins Growth Pipeline

Executives reiterated a power‑centric strategy built around control of generation, storage, and compute at scale. The Morgantown Phase 1 blueprint calls for about 500 megawatts of new dispatchable power, 250 megawatts of battery storage, and 500 megawatts of data center load, with a similar Phase 2 and a 480 megawatt target in Kentucky by the second half of 2027.

Demand Response Cushions Power Costs

The company used its flexible mining fleet to capture higher demand response payments from the grid. Those proceeds nearly doubled year over year, rising from $8.6 million in 2024 to $17.7 million in 2025, helping offset power costs during the transition toward more stable HPC leasing revenue.

Mining Slump Weighs on Q4 Revenue

Quarterly revenue fell to $35.8 million in the fourth quarter from $50.6 million in the third quarter, a drop of about 29%. The decline was mainly tied to lower Bitcoin production, and mining still accounted for the bulk of 2025 revenue at $151.6 million, versus only $16.9 million from early‑stage HPC operations.

Large GAAP Loss Driven by Warrant Revaluation

TeraWulf reported a 2025 GAAP net loss of $661.4 million, dramatically wider than the prior year’s $72.4 million loss. Management stressed that a noncash $429.8 million fair‑value change on warrants and derivatives, largely linked to the Google warrant, was the main driver of the reported deficit.

Adjusted EBITDA Turns Negative During Transition

Non‑GAAP adjusted EBITDA swung to a negative $23.1 million in 2025 from a positive $60.4 million in 2024. The company attributed the shift to transition‑related costs and ramp‑up spending that precede the full contribution of its contracted HPC leases.

Operating and SG&A Costs Surge With Headcount

Selling, general, and administrative expense jumped to $147.8 million in 2025 from $70.6 million, driven by hiring and milestone‑based compensation as staff expands toward about 300 employees by 2026. Operating expenses rose to $19.7 million from $7.6 million, and the fourth‑quarter SG&A spike was partly tied to stock‑based compensation.

Interest Expense Jumps With Capital Build-Out

Annual interest expense climbed to $80.2 million from $19.8 million, reflecting the large financing program undertaken to fund growth. The fourth quarter alone showed $62.4 million of interest expense versus $9.8 million in the third quarter, though actual cash interest paid remained relatively modest at $13.9 million for the full year.

HPC Margins Below Target But Improving

Reported 2025 HPC segment margins of about 42% fell well short of the company’s long‑term 85% target. Adjusting for tenant fit‑out revenue timing, pre‑revenue costs, and partial‑period ramps lifts the margin to roughly 77%, which management said should trend higher as more capacity moves into steady‑state operation.

Schedule Shifts Delay Near-Term Revenue

Management acknowledged that design and schedule changes reduced projected 2025–2026 revenue by around $16 million. They argued that these adjustments trade near‑term revenue timing for greater capacity and higher revenue potential over the life of the projects.

Guidance: Aggressive Capacity Targets Backed by Funding

Looking ahead, TeraWulf plans to sign and deliver 250 to 500 megawatts of contracted critical IT capacity annually through decade’s end, anchored by Morgantown and Kentucky. The company reiterated its roughly 85% long‑run HPC margin goal, expects no new equity for currently contracted builds, and highlighted that WULF Compute and Abernathy are fully funded with fixed‑rate project financing.

TeraWulf’s call painted a picture of a company in full transformation, trading lumpy mining revenues for long‑term, credit‑backed HPC leases. For investors, the key takeaway is a solid funding base and sizable contracted backlog, set against weak near‑term earnings and rising costs as the platform scales toward its ambitious data center power targets.