Why TeraWulf Fell 11% on Its Muskie 1-GW Power Expansion, October 2026

TeraWulf closed at $11.31 on October 21, down 11.3%, with coverage explicitly linking the decline to the doubling of contracted power at the Muskie AI campus to 1 GW, even as its long-term contracted revenue is reportedly $27 billion.

TeraWulf's shares closed at $11.31 on October 21, a decline of 11.3% on the session — a notable reversal for a stock that had reportedly surged nearly 500% over the prior twelve months. Coverage from Yahoo Finance and Stocktwits explicitly links the drop to the company's announcement of doubling contracted power at the Muskie AI and high-performance computing campus in Kentucky to 1 gigawatt, an expansion formalized in an SEC 8-K filed by wholly-owned subsidiary DB Long Hunts Data LLC on October 5, 2026. The surface paradox — a large positive operational milestone coinciding with a double-digit sell-off — reflects a tension that runs through the entire neocloud investment thesis: the gap between the scale of physical commitments being made today and the revenue those commitments are expected to generate years hence.

The Muskie expansion is substantive. Multiple reports confirm that TeraWulf's subsidiary and Kentucky Power Company, an American Electric Power affiliate, executed amended and restated transmission infrastructure and energy service agreements that bring the campus's contracted power to 1 GW. Data Center Dynamics reports that the second 500-megawatt phase has been accelerated, with the campus now expected to reach full capacity in 2029, one year ahead of the prior schedule. Separately, Kentucky Power has been reported to be adding generation capacity at its Big Sandy facility to support TeraWulf's broader Kentucky build-out — a co-investment in regional energy infrastructure that underscores the scale of what is being attempted.

The Kentucky acceleration is the latest chapter in a strategic transformation that has unfolded at speed. By the time of its most recent reported earnings, TeraWulf's HPC and AI revenues had overtaken bitcoin mining as the company's primary income source. On the commercial side, Fox Business reported a 20-year lease with Anthropic expected to generate approximately $19 billion in revenue; Startup Fortune reported that Google has provided a $3.2 billion backstop for the Lake Mariner campus — both figures come from single published sources and merit independent verification. Pluang reported aggregate long-term contracted revenue at $27 billion, and TeraWulf's CEO was quoted, according to Stocktwits, characterizing the Anthropic arrangement as merely the "tip of the iceberg" for the company's AI infrastructure ambitions. TD Cowen initiated coverage in October 2026 with a Buy rating and a $21 price target; Citi argued the stock retains approximately 40% upside despite the prior run-up.

What makes this buildout financially striking — and contentious — is its capital intensity. Slicast's compilation of SEC XBRL data shows capital expenditure of $1.06 billion in FY2025, up 295.7% from $268 million in FY2024, against reported revenue of $168 million in the same period — a capex-to-revenue ratio of 629%. Among the seven neoclouds tracked by Slicast, TeraWulf ranks second in capital intensity, behind NBIS, and fifth in absolute capex, where CRWV leads the cohort. The largest single quarter on record was the three months ending March 31, 2026, at $523 million. This spend profile is characteristic of a company in the infrastructure-laying phase of its cycle, where near-term cash generation is intentionally subordinated to long-term contracted capacity — but it also underscores the critical importance of contract durability and counterparty health.

Against this growth backdrop sit several concrete risks. TeraWulf's Lake Mariner campus reportedly experienced a fire in September 2026 that prompted a safety review and temporary operational suspension, raising execution-quality questions at precisely the moment the company is committing to a multi-gigawatt build. In Lansing, New York, local officials have begun drafting a data center ban following community opposition, and TeraWulf has signaled it would pursue legal action if the measure advances — a regulatory overhang that could complicate the New York portion of its footprint. The extreme gap between capital expenditure and current revenue requires that contracted relationships with counterparties such as Anthropic and Google remain durable and that construction timelines hold. Three signals will be worth tracking in the weeks ahead: whether the Q3 FY2026 earnings call on November 6 provides updated guidance on revenue recognition against the contracted backlog; whether management reports that the Lake Mariner facility has returned to full operational status; and whether the financing terms underpinning the Kentucky 1-GW build-out are disclosed with greater specificity.