Anthropic’s first public IPO filing didn’t include the total of its compute and infrastructure commitments, but the amended version it filed yesterday puts that total at $895.4 billion, with about $69.8 billion due over the next year. Many of the companies building that capacity are borrowing to do it, so Anthropic’s growth depends partly on its access to credit. The rest of this week’s news covers the insurers and lenders those builders rely on, plus a rise in Apple’s memory chip costs that comes from the same AI demand.
Anthropic’s IPO Filing Warns Its Compute Depends on Its Partners’ Financing
Anthropic’s revenue rose 47% to $16.96 billion in Q3 2026, a slowdown from 144% growth in Q2 2026. Anthropic took on $5 billion of additional compute costs in Q3 2026. It reported a $567 million operating loss, after earning $974 million of operating income in Q2 2026.
The $895.4 billion is far larger than the contractual obligations table in the same filing, which totals $320 billion. The table doesn’t include $451.2 billion of signed leases that haven’t started yet. It also excludes Anthropic’s short-term commitments and the deals it signed after Q3 2026 ended.
Anthropic discloses that some of its cloud providers and chip partners have funded or supported part of its buildout with capital or credit support, so the same companies selling it compute also help finance it. It warns that if its compute providers lose access to financing, its contracted capacity could be delayed, repriced, reduced, or never delivered.
The filing still doesn’t say how many shares Anthropic will sell and how many its existing investors will sell. Until it does, investors can’t tell how much of the IPO will fund Anthropic itself. The IPO also determines how much of its Anthropic gain Amazon can record, because Amazon’s convertible bonds turn into stock in the IPO. Amazon’s $140 Billion Anthropic Gain Depends on a 12% Ownership Cap explains how that cap affects Amazon’s results once Anthropic lists.
Aon CEO Says Data Center Insurance Now Decides Access to Debt
Insurance is becoming another condition for financing these projects. Aon CEO Greg Case told CNBC that putting billions of dollars of equipment in a few locations makes data centers more difficult to insure. When developers can’t get insurance, he said, ‘You can’t access the debt markets.’ A single outage could cost millions of dollars per minute, so Aon now works with developers on where and how they build before it arranges coverage.
Aon has also built a $10 billion insurance facility for data centers that are already operating. The Insurer reported that Aon would cover owners’ buildings and equipment and let tenants insure their GPUs separately. Aon hasn’t released the terms itself, so they’re news only. If Case is right, lenders will only fund as many data centers as insurers are willing to cover.
Moody’s Warns of a 2027 to 2029 Refinancing Wall as AI Borrowing Grows
Moody’s says AI financing is driving private credit’s growth just as refinancing risk in that market is rising. In a report published on October 27, it projected that Alphabet, Amazon, Meta, Microsoft, Oracle and CoreWeave will spend about $785 billion on capex this year and nearly $1 trillion in 2027. Those six companies have also signed nearly $3 trillion of future commitments, including leases that haven’t started, purchase commitments, and guarantees (news only). Anthropic is one of the customers they’re building for. Anthropic has committed to spend at least $110 billion with Amazon and $44.9 billion with Microsoft, regardless of how much compute it uses.
The same report warns that weaker borrowers may struggle to refinance loans maturing from 2027 through 2029. Of the 607 middle-market companies Moody’s tracked through rated CLOs, 106, or 17%, used payment-in-kind interest, which defers interest by adding it to the loan balance. Those companies come from many industries, so the 17% describes private credit broadly. AI borrowers now compete for funding in a private credit market where about 1 in 6 borrowers in Moody’s sample already defer interest.
If you’ve invested in data center debt, AI Data Center Bonds Face a 2031 Maturity Wall looks at 13 deals that mature within 12 months of each other. It shows which borrowers could still afford their debt if rates rise before then.
Apple Expects Siri AI and Memory Costs to Lower Its Gross Margin
Apple spent less on capex this year, but its AI costs are rising through its suppliers. It spent $9 billion in fiscal 2026, down from $12.7 billion a year earlier, while its R&D expense rose 32% to $45.8 billion.
On its earnings call yesterday, Apple said it expects gross margin of 45% to 46% in fiscal Q1 2027, down from 47.9% in fiscal Q4 2026. Apple blamed higher memory chip prices, which have climbed with AI demand, and the computing cost of Siri AI. Apple runs part of Siri AI in Google’s cloud.
Apple’s purchasing commitments rose by $33 billion in fiscal Q4 2026 as it worked to secure memory supply, COO Sabih Khan said on the call (news only). Apple hasn’t said how much Siri AI costs, but it plans to raise iCloud+ prices to help cover it.
The AI Financing Exposure Tracker gives paid subscribers 38 AI financing deals, each verified in its filing, with monthly updates and updates after every earnings season. They also get a new deal audit each week built from 10-Ks, bond filings, and earnings calls.
Which of Anthropic’s compute partners do you want audited next?