TeraWulf (WULF) Stock, October 2026: The 8% Drop and the 1 GW Muskie Expansion

TeraWulf fell 8% to $11.73 on October 30, 2026 with no published explanation for the move, capping a month in which the company doubled Muskie campus capacity to 1 GW and amended its revolving credit facility — reportedly expanded 60% to roughly $400 million — while investor debate over stranded-asset risk and the economics of a reported 20-year Anthropic lease intensified.

TeraWulf (WULF) closed at $11.73 on October 30, 2026, a decline of 8% on the session. No published report has identified a specific reason for the Friday move. The absence of a disclosed catalyst makes the drop harder to interpret in isolation, but it arrived at the end of a month that had already subjected the stock to sharp swings in both directions — swings that illuminate the genuine uncertainty surrounding the company's pivot from bitcoin mining to large-scale AI infrastructure.

The month's central strategic development was the expansion of the Muskie AI and high-performance computing campus in Kentucky from 500 megawatts to 1 gigawatt, achieved through an amended agreement with Kentucky Power that also pulled the second 500 MW phase forward to a 2029 delivery target. Multiple outlets reported that the stock fell roughly 11% following that announcement. A subsequent rally of approximately 7% followed, attributed by multiple reports to public comments from CEO Paul Prager, who argued that AI data center assets were not at risk of becoming stranded and stated that Anthropic would not walk away from the company. On the analyst side, TD Cowen reported an initiation with a Buy rating and a $21 price target in October; Citi reportedly characterized the stock as retaining approximately 40% upside after a near-500% gain in the prior twelve months; and KBW argued that Anthropic's plans related to AMD chips and overseas leasing would be relatively favorable for both Core Scientific and TeraWulf, while noting that backstop guarantees remain a precondition.

The Anthropic partnership anchors the bull case. A Fox Business report stated that a 20-year lease with Anthropic is expected to generate $19 billion in total revenue; the figure appears in a single published source and should be treated as unconfirmed until TeraWulf presents audited contract details. Reporting in October also noted Google's backing for the Lake Mariner campus in New York. On the liability side, an 8-K filed on October 23, 2026 disclosed that TeraWulf had entered into Amendment No. 1 to its existing credit agreement, with Morgan Stanley Senior Funding named as agent; multiple news outlets characterized this as a roughly 60% expansion of the revolving credit facility to approximately $400 million, though those figures derive from media coverage rather than the filing's own disclosed text.

The capital expenditure trajectory provides essential context for evaluating those commitments. According to Slicast's compilation of SEC XBRL data, TeraWulf deployed $1.06 billion in capital expenditures in fiscal year 2025 — a 295.7% year-over-year increase from $268 million in fiscal year 2024 — against $168 million in FY2025 revenue, producing a capex intensity of 629% of revenue for the year. That places the company second among the seven neoclouds Slicast tracks by intensity, behind only NBIS, and fifth by absolute capex. The largest single-quarter figure in Slicast's compilation was $523 million in the quarter ended March 31, 2026. With the Q3 FY2026 earnings call scheduled for November 6, investors will be looking for clarity on how long-duration contracts translate into near-term cash flows sufficient to service this investment cycle.

The risks are substantive and extend beyond balance-sheet arithmetic. In the town of Lansing, New York, local authorities reportedly moved toward drafting a data center ban following community opposition, and TeraWulf has indicated it would pursue legal action if the ordinance proceeds. The broader 'stranded compute' concern — amplified by Elon Musk's public warnings in October and not fully dispelled by management's rebuttal — remains a sector-wide overhang; at least one report described AI data center funding risks as mounting rather than receding. And the stock's own October pattern — down roughly 11% on a capacity announcement, up 7% on a CEO statement, then down 8% for reasons no report has explained — reflects a market that has not yet reached consensus on how to value a company making enormous infrastructure commitments on the basis of contracts whose full economics remain only partially disclosed.

Three signals deserve attention after the October 30 close. First, the November 6 earnings call: management's disclosures on revenue recognition under the Anthropic lease and the status of any backstop guarantee will be the most important new datapoint since the Muskie expansion was announced. Second, the Lansing situation: any formal filing of a ban ordinance will clarify the legal and operational risk at TeraWulf's New York operations, and the company's legal response will indicate how aggressively it intends to defend that footprint. Third, the capex-to-revenue trajectory in the coming quarters: if the $523 million single-quarter pace of early 2026 moderates as construction milestones pass and contracted revenue begins to ramp, that ratio will be the clearest indicator that the buildout is transitioning from speculative to fundable.