The AI Capex Supercycle

Nvidia, OpenAI, and CoreWeave Overlap Contracts, Stakes, and Debt

The Thesis

Nvidia sells chips to CoreWeave. CoreWeave pledges a Meta services contract to borrow from banks, then builds data centers to house Nvidia chips. Nvidia separately invested $30 billion in OpenAI, CNBC reported in March 2026. OpenAI stands to hold roughly $2.6 billion in CoreWeave and Cerebras stock, The Information reported in May 2026, through arrangements tied to buying their chips and cloud time. OpenAI also agreed to lend Cerebras money. Customer contracts, equity grants, vendor investments, and contract-backed debt overlap. The records do not trace the same cash around a circle.

That is the financing shape behind the AI capex buildout. Chipmakers, hyperscalers, neoclouds like CoreWeave, and model labs sell to each other, take stakes in each other, and borrow against customer contracts. TEXXR counted more AI data-center capex articles in 2026 Q2 than in 2024 Q1; article volume is not dollars spent or proof that these arrangements tightened every quarter. Bloomberg’s October 2025 report called the deals “circular.” That label describes the overlap. It does not prove a round trip for any dollar.

Nvidia supplies the chips. CoreWeave builds capacity around them. Salesforce is a step removed: its Anthropic stake links its balance sheet to the buildout, while its bond sale shows what creditors charged one software company in the same period. This page tracks the rise in capex coverage, the financing arrangements, and the constraints the record identifies. Whether demand can support the capacity is the arithmetic on the token ceiling. This page does not forecast where any of these stocks go next.

The Evidence

TEXXR’s archive counts articles tagged to AI data-center capex each quarter; it does not measure capital flows. Quarterly volume ran at 85 articles in 2024 Q1. By 2024 Q4 it was 132. By 2025 Q4, 304. By 2026 Q2, 534 — a 6.3x jump in nine quarters, out of 2,879 articles tagged to the topic across 45 observed quarters ending in 2026 Q2. The sharpest single-quarter shift in what that coverage was actually about, measured by semantic drift — the quarter-to-quarter change in the archive’s article-topic mix — lands earlier than the current boom’s timeline suggests: 2020 Q4, when Nvidia’s early supercomputer commitments and pandemic-era cloud spending first pulled the topic away from ordinary data-center announcements. The latest coverage increase is the second inflection, not the first.

The Stargate venture shows how much an announced project can change before capacity arrives. OpenAI, SoftBank, and Oracle unveiled the $500 billion project in January 2025. By July, the Wall Street Journal reported it had “struggled to get off the ground” and had sharply scaled back its ambitions. By September, it had expanded again — five new US sites, pushing planned capacity toward 7 gigawatts. By February 2026, The Information was reporting that OpenAI had scrambled for compute as Stargate stalled amid clashes with SoftBank. The announced dollar figure persisted while the site plan changed.

Nvidia’s OpenAI plans need separate labels. Nvidia announced plans to invest up to $100 billion in September 2025. In January 2026, Wall Street Journal sources said that plan had stalled. CNBC reported in March 2026 that Nvidia had recently invested $30 billion in OpenAI. The cited reports do not establish that the investment replaced the September plan. CNBC reported in May 2026 that Nvidia’s equity commitments across the AI stack had topped $40 billion in 2026, including its OpenAI investment. That total covers multiple companies; the earlier $100 billion was a ceiling for one plan.

CoreWeave links one customer contract to an equity grant, then a different customer contract to debt. Its OpenAI contract, worth up to $11.9 billion, came with $350 million of CoreWeave stock issued to OpenAI at its 2025 IPO. In February 2026, reports said CoreWeave sought bank financing backed by its Meta services contract. Bloomberg reported that the loan closed on March 31, 2026, at $8.5 billion. CoreWeave called it the largest chip-backed debt deal of its kind. CoreWeave also uses special-purpose vehicles for construction debt. Those vehicles and the Meta-backed loan are different arrangements; Bloomberg’s loan report does not trace cash between them.

Debt forecasts put a scale on the funding question, not on completed borrowing. Morgan Stanley estimated in August 2025 that hyperscalers would fund $1.4 trillion of a projected $2.9 trillion in AI infrastructure through 2028. The $1.5 trillion remainder is derived by subtraction; it was not all committed debt. In June 2026, Reuters reported that Morgan Stanley expected global AI-tied debt issuance to more than double in 2026, to nearly $570 billion. The two estimates cover different measures and periods. Upstream, TSMC raised its 2026 capex guidance in July from $52–56 billion to $60–64 billion. A step removed, Salesforce sold $25 billion in bonds in March 2026. The Financial Times said investors demanded a significant premium to take part; that pricing does not isolate AI risk from other risks to Salesforce.

The record also carries counter-evidence. The Wall Street Journal’s November 2025 accounting put US data-center capacity — built, underway, planned, or stalled — above 80 gigawatts in 2025. Those categories do not all supply usable power. The Journal identified limits in power, water, chips, and local opposition. A January 2026 Financial Times analysis put the AI investment boom at roughly 1% of US GDP, about half the dot-com boom’s share. That comparison says nothing about how this one ends.

The Companies

Nvidia sells the chips and takes equity stakes in companies buying compute. It backed CoreWeave before its 2025 Nasdaq IPO. CNBC’s May 2026 tally includes stakes across the AI stack, not just direct chip buyers. When Jensen Huang said the OpenAI investment “might be the last time” Nvidia invests in OpenAI, his remark did not establish a limit on future investments.

CoreWeave rents Nvidia-based capacity. It ran 43 active data centers as of April 2026, when it signed a multiyear supply deal with Anthropic. CoreWeave reported a $99.4 billion revenue backlog in 2026 Q1, against $2.08 billion of revenue recognized that quarter. Backlog covers future contract periods; it is not cash available to service debt today. Its construction vehicles add another financing layer, but the cited records do not connect their cash flows to a completed circuit.

Salesforce does not build data centers. Bloomberg’s source valued its Anthropic stake at roughly $5 billion in June 2026. Its Agentforce pricing is shifting from flat subscriptions toward usage-based AI fees. Its March 2026 bond sale carried a premium, according to the Financial Times, but that record cannot assign the premium to AI alone.

The Lenses

Benjamin Graham asks whether each deal works on its own cash flows. Security Analysis rejects new-era arguments that suspend ordinary underwriting. Applied here, each contract needs a price, funding cost, useful life, and enforceable customer obligation. Revenue backlog and announced capacity cannot substitute for those inputs. The Intelligent Investor adds the margin-of-safety test: assumptions need room to fail without wiping out the capital structure.

Robert Shiller asks how the story alters the financing environment. Narratives spread through markets and feed back into behavior. Bloomberg put “circular deals” into circulation in October 2025. Banks, regulators, and investors can apply that label to separate transactions before any filing proves that cash literally completed a circle. Bloomberg’s October 2025 report does not show whether the label changed loan terms or capex plans.

What Moved

Anthropic’s S-1, filed October 26, puts a lab’s compute bill on paper. It shows $19.2 billion of compute and infrastructure expense from 2023 through June 2026, then named compute deals worth about $637 billion, derived, with an estimated $125 billion to $150 billion of TPU capacity and $20 billion-plus of AMD systems left outside the contract table. The four deals that cannot be cancelled, with Google, Amazon, Microsoft and Broadcom, total $430.6 billion, derived. Broadcom also finances part of its share: Anthropic may pay rent on the 2026 lease in up to $42 billion of convertible notes. The ANT dossier reads the filing.

Reuters’ sources say ByteDance, Alibaba, and Tencent ordered more than 3 million Nvidia RTX PRO 5500 GPUs worth over $35 billion in October 2026. That is a combined order figure, not reported deliveries or collected chip revenue. Reuters gives no allocation by buyer or financing terms. The street can count the order book; it cannot put those orders into a cash-flow waterfall yet.

Bloomberg reports Amazon pledged more than €16 billion in Germany for 2027 across AWS and AI data centers, satellite internet, Prime Video, and robotics. It is not an AI-only capex figure or cash spent in 2026. GeekWire reports that Amazon released TorchNeuron in public beta so PyTorch code can run on Trainium without rewrites. The release supplies no utilization or cloud-revenue figure. Reuters, citing a Seoul newspaper, says Nvidia asked Samsung, SK Hynix, and Micron to use TSMC’s 3nm process for custom NVHBM memory base dies; Samsung agreed. That is a supply plan, not evidence that customer contracts cover financing costs.

Start with cash from operations, not the order book. The DeadRisk market layer records Applied Digital capex of $2.9 billion for FY2026, ended May 31, against $89.7 million in operating cash flow: about 32 times, derived by division. FY2025 capex was $681.6 million against negative $115.4 million in operating cash flow. Debt plus leases rose from $910.8 million at FY2025 end to $5.1 billion at FY2026 end. Those records show spending ahead of operating cash; they do not identify who financed each asset.

Amazon shows a different funding option. Financial Times sources said Amazon had discussed putting $8 billion of Grace Blackwell chips in a special-purpose vehicle and leasing them back. The DeadRisk market layer puts Amazon’s FY2025 capex at $131.8 billion, against $83.0 billion in FY2024, while free cash flow fell to $7.7 billion from $32.9 billion. The proposed vehicle’s asset size exceeded FY2025 free cash flow. The Financial Times described talks, not completed borrowing.

Some customer payments are visible. Reuters reports that Anthropic routed 47% of its 2025 sales, about $2.16 billion, through Amazon and Google and, by Reuters’ count, paid them about $351 million in distribution fees. The fees equal 16.3% of routed sales, derived by division. Reuters does not split either amount by partner or show whether those sales will recur. That missing term matters when the street treats a cloud contract as proof that the capacity behind it can pay for itself.

Keep rights and plans separate from cash. Qualcomm’s AWS partnership includes Amazon warrants covering $4 billion of Qualcomm stock; CNBC did not report an exercise or cash outlay. OpenAI’s Samsung chip work has no reported spend or delivery schedule. Samsung and TSMC’s ASML commitments target 2028 and 2030 machine use, not installed 2026 capacity. The Wall Street Journal reported that more than 10 US states have rolled back tech tax breaks; it did not document canceled capex. Amazon says it stopped using county NDAs for data-center projects. GeekWire reports Amazon’s pledge to spend more than $1 billion over five years in hosting communities. A pledge and a permitting constraint are not completed capacity.

South Korea’s $919 billion plan is planned AI-infrastructure investment, not outlay. SK Hynix’s Indiana groundbreaking began a $4 billion packaging project in August 2026; Bloomberg places HBM mass production in the second half of 2029.

Physical supply gives the test another clock. Corning’s 2026 Q2 sales rose 17% from 2025 Q2 to $4.74 billion, while Corning reported production limits on AI connectivity. More supplier sales do not settle when planned data-center capacity becomes usable, or what customers earn from it.

Microsoft’s Project Zenith would run large models locally; its announcement does not establish displaced data-center demand.

Supplier alternatives do not yet settle the cash-flow test. SemiAnalysis’s Jalapeño tests cover specified open-weight models, not every workload. OpenAI’s Ultrafast preview puts Cerebras in an API tier, while AMD and Cerebras are integrating server racks. Cerebras’s 2026 Q2 revenue was $180 million, up 74% from 2025 Q2 but below the $194.23 million estimate Reuters cited. Reported profit needs its own check: Amazon and Alphabet’s other income, mostly investment gains, totaled about $121 billion after tax in 2026 Q2; the Wall Street Journal put that at 66% and 71% of their respective quarterly profits.

• 2026-07-18Pillar launch. Track operating cash against capex, and closed financing against proposed deals.
• 2026-08-27SK Hynix begins its $4 billion Indiana packaging project; Bloomberg places HBM mass production in the second half of 2029, after the 2026 start.
• 2026-10-14ASML raises the floor of its 2026 net-sales forecast from €43 billion to €44 billion; its €45 billion ceiling stays put. Customer interest in 2029 and 2030 orders is not booked capacity.

Sources