FluidStack

Fluidstack is the operating partner on roughly a gigawatt of contracted AI capacity anchored by a frontier lab, and at the first of those sites it is now buying its way from tenant toward part-owner. Anthropic's role is confirmed by Anthropic itself and corroborated in the filings of the three listed landlords behind the four contracts; Google stands behind at least $6.23B of the lease obligations in exchange for warrants; and the first capacity has been physically delivered rather than merely contracted. Where Anthropic did contract directly instead, it accepted a delivery date more than a year later — which puts a price on what Fluidstack actually sells.

• The anchor relationship is confirmed at the primary-source level, not inferred. Anthropic's own 12 November 2025 announcement reads: "Today, we are announcing a $50 billion investment in American computing infrastructure, building data centers with Fluidstack in Texas and New York, with more sites to come." It states it selected Fluidstack "for its ability to move with exceptional agility, enabling rapid delivery of gigawatts of power", citing about 800 permanent and 2,400 construction jobs. A frontier lab publicly bound its compute roadmap to a company that had filed $66.2M of revenue the prior year.
• Three listed counterparties corroborate the shape of that demand in documents they are obliged to get right. Hut 8's 17 December 2025 release covers a 15-year, 245 MW River Bend lease with a $7.0B total contract value, rising to $17.7B with three five-year renewals, at a 3.0% annual escalator, with Fluidstack as tenant and Anthropic as end customer. TeraWulf and Cipher Mining disclosed comparable Fluidstack contracts in their own announcements and 8-Ks.
• Fluidstack runs two businesses, and the larger one is operating, not paper. Independent research puts about 62% of revenue in owned-and-operated private cloud — its own fleet, on sites it leases — at over $100M average contract value, with the remaining roughly 38% brokered through an asset-light marketplace averaging about $340K per contract, across more than 100,000 GPUs under management. On the operated side, the Hut 8 structure has Google backstopping Fluidstack's lease payments for the full 15-year base term plus its operations-services obligations — an operating obligation only exists because Fluidstack performs an operating function.
• Contracted capacity is large, dated, and now partly real. Four contracts with three listed landlords — about 360 MW at TeraWulf's Lake Mariner in New York, 168 MW at the TeraWulf Abernathy joint venture in Texas, about 207 MW at Cipher's Barber Lake in Texas and 245 MW at Hut 8's River Bend in Louisiana — total roughly 980 MW. TeraWulf's Q2 2026 results confirm CB-3 was delivered in early July 2026, triggering $600M of Google credit support, with CB-4 rent commencing in the second half of 2026 and CB-5 targeted for early 2027; Cipher expects initial Barber Lake delivery by September 2026.
• Google is underwriting the credit gap and taking equity risk to do it: $3.2B of obligations at Lake Mariner, about $1.3B at Abernathy and $1.73B at Barber Lake — at least $6.23B disclosed — plus an undisclosed amount covering the full 15-year River Bend base term, in exchange for warrants in the landlords. A counterparty of that standing pricing the contracts is a substantive third-party judgement on them.
• Capital has cleared at two layers of the stack, with a third indicated. An $830M Series A led by Situational Awareness closed in January 2026 at a $7.5B valuation; the Abernathy joint venture priced $1.275B of 8.0% senior secured notes due 2030 to fund construction; and J.P. Morgan and Goldman Sachs have indicated up to 85% loan-to-cost project financing for River Bend. Equity and project debt have been arranged, and construction financing indicated but not closed for a company whose last filed revenue line was $66.2M.
• The direct-lease datapoint quantifies the speed advantage rather than only undercutting it. TeraWulf's 6 July 2026 lease signed straight with Anthropic delivers initial capacity in the second half of 2027 and full ramp in early 2028. The Fluidstack-intermediated capacity starts delivering from the second half of 2026. The direct deal is dated more than a year later on the calendar — a gap the disclosures show but do not explain, in a deal where Anthropic's stated selection criterion was speed.
• It is converting tenancy into ownership at the one site where it can. Fluidstack leads the investor group that agreed to buy TeraWulf's entire 50.1% interest in the Abernathy joint venture for aggregate cash consideration of about $530M — putting the buying group behind the majority of a 168 MW Texas site whose 25-year hosting commitment is worth about $9.5B, so that the spread which had accrued to the landlord accrues to the buyer instead. Fluidstack's own share within that group is not disclosed and the sale is agreed rather than confirmed closed, but it is the only one of the four contracts whose ownership position is changing. At River Bend it separately holds a right of first offer on up to 1,000 MW of expansion.
• It has begun acquiring land outright rather than only leasing capacity on top of it. Fluidstack acquired Solis Arx, developer of a multi-phase AI computing campus on a 99-acre powered-land tract at Progress Park in Wythe County, Virginia, advised by Moelis; the campus was announced on 5 December 2025 and a Fluidstack representative presented the acquisition and future plans to the county Board of Supervisors on 9 June 2026. Owning powered land is the structurally correct answer to the risk of being contracted around.
• Its own stated model is developer-operator: "We're leading the deployment of Anthropic's $50B compute build out, one of the largest infrastructure projects in US history. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software." That is a first-party claim of intent rather than audited economics, but the Solis Arx purchase and the Abernathy buyout are the first capital actually spent in that direction.

Fluidstack operates the compute and, at three of its four sites, owns none of the ground beneath it. Of roughly $27.0B of base-term rent and hosting fees across the ~980 MW forward book, about $17.5B sits on ~812 MW at Lake Mariner, Barber Lake and River Bend, held by TeraWulf, Cipher Mining and Hut 8 — campuses in which Fluidstack will hold no interest after Wythe County is built, and whose renewal options run that figure to about $41.5B. The remaining ~$9.5B is Abernathy, where a Fluidstack-led group has agreed to buy the majority stake: a real change of position at one site, on terms that do not disclose Fluidstack's own share and that leave the joint venture's $1.275B of outside notes standing. On 6 July 2026 the anchor customer signed a 20-year, roughly 401 MW, approximately $19B lease with TeraWulf directly — larger than any single contract Fluidstack intermediates — and that landlord sold out of the joint venture in the same announcement. Buying in is the right answer to that, but it arrives after the exposure was taken and cannot turn the three signed leases into assets.

• Being the tenant is what creates the exposure, and that is the structure underneath the roughly 62% of revenue running through capacity Fluidstack leases itself. Base-term obligations total about $27.0B — roughly $6.7B at Lake Mariner, $9.5B at the Abernathy joint venture, $3.8B at Barber Lake and $7.0B at River Bend — rising to about $41.5B across the three contracts that disclose renewal economics. These are contracted revenues to the landlords: fixed rent on long terms that must be filled with paying compute demand. The other roughly 38% of revenue is a brokered marketplace at about $340K per contract that carries no such commitment — genuinely asset-light, but the smaller half of a $66.2M base, and every megawatt of the ~980 MW forward book sits on the leased side, so the mix is moving toward the layer that owes rent, not away from it.
• The anchor customer demonstrated it can contract around the intermediary entirely. TeraWulf's 6 July 2026 announcement describes a 20-year lease with Anthropic for approximately 401 MW of critical IT load at its Justified campus in Hawesville, Kentucky, worth about $19B over the initial term, and states that TeraWulf maintains a direct customer relationship with Anthropic at the site. Fluidstack is not a party. That single contract is larger than the $9.5B Abernathy joint venture, its biggest intermediated deal.
• The landlord then voted with its capital. TeraWulf agreed to sell its entire 50.1% interest in Abernathy for about $530M in cash, redeploying into platforms where it holds direct ownership and control. Fluidstack leads the group buying that stake, though its own share of the ~$530M is not disclosed — funding, at roughly $530M, the majority of an asset whose informed co-owner had just ranked the disintermediated model above it.
• Buying in changes the economics of one site; it does nothing to the three already signed. About $17.5B of the rent — Lake Mariner in New York, Barber Lake in Texas, River Bend in Louisiana, on roughly 812 MW — sits on campuses Fluidstack will own no part of after Wythe County is built, and those are exactly the three contracts that disclose renewal economics, running to about $41.5B if the options are exercised. Nothing bought later converts a lease already signed into an asset. The Abernathy buyout does change the fourth, but partially: the ~$9.5B commitment does not vanish when the group takes 50.1%, because the joint venture still owes $1.275B of 8.0% senior secured notes to outside creditors and Fluidstack's own slice of the buying group is undisclosed. Google's backstop of at least $6.23B protects the landlords' rent if Fluidstack cannot pay — it does not protect Fluidstack's equity.
• What is owned outright is not merely small but unquantified. Solis Arx is a 99-acre tract with terms undisclosed, megawatt capacity, committed investment and end customer all unpublished, and a closing date that is not even consistent across sources — 2 June 2026 per the sell-side advisor listing, 31 July 2026 per a company database. There is no published figure with which to size it against roughly 980 MW contracted and $27.0B committed, which is itself the point: a first-party description of acquiring power and building data centres is evidence of intent, not of delivered economics.
• The valuation rests on almost no revenue evidence. The last filed figure is $66.2M for the year ended 31 December 2024, on which the company lost $735K. A $7.5B mark is over 110 times that revenue; the reported $18B is roughly 100 times a $180M annualised estimate that is itself an analyst figure now more than eighteen months stale. CoreWeave closed at $90.67 on 7 August 2026 for a $49.47B market capitalisation on $6.23B of trailing twelve-month revenue — about 7.9 times sales.
• The higher mark has never been confirmed closed, and the company's own conduct argues against assuming it. The roughly $1B at approximately $18B, reported 14 April 2026 as co-led by Jane Street and Situational Awareness with Morgan Stanley advising, was described as talks and has not been announced as completed by Fluidstack or any named investor. Fluidstack instead chose to announce its January Series A at a $7.5B valuation on 20 July 2026 — three months after those talks were reported.
• Concentration is severe and one-sided, and commitments have proven reversible. Anthropic dominates the forward book; the other named customers — Meta, Mistral, Character.AI, Poolside and Black Forest Labs — come from third-party research not dated to 2026 by the company, sitting on a base that generated $66.2M in total in 2024. In March 2026 Fluidstack withdrew from a roughly €10B, 1 GW datacentre project at Bosquel in northern France, unveiled at the 2025 Paris AI Action Summit, and from a Mistral-linked site south of Paris, moving its global headquarters from London to New York.
• The opacity is structural rather than temporary. There are no SEC filings, no interim reporting, and no disclosed gross margin, operating margin, cash position or net debt — and no revenue figure of any kind since the year ended 31 December 2024. The next hard datapoint is the FY2025 statutory filing due at Companies House by 30 September 2026, which will cover a period that ended before most of the contracted capacity was energised. Even that filing will not measure the business the current marks are being set against.