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Market report · Sept. 2025 to Oct. 2026

The AI debt ledger: bonds, leases and private credit behind the buildout

AI-related debt issuance hit about $450B by September 2026 as five hyperscalers disclose $1.1T of uncommenced leases and Oracle's credit spreads widen.

BlockWest Research·Published October 11, 2026·12 min read·Data as of Oct 9, 2026

Key findings

  • Global AI-related debt issuance reached about $450B by early September 2026, more than double the total for all of 2025, according to Morgan Stanley figures cited in the Bank of England’s Financial Policy Committee record.
  • Four hyperscalers (Alphabet, Amazon, Meta and Oracle) sold about $194B of bonds in 2026 through July 7, against about $108B in all of 2025, per LSEG data reported by Reuters. Microsoft has not issued; its fiscal 2026 cash flow statement shows only $3.0B of repayments.
  • The larger obligation sits off the balance sheet. Five companies disclose about $1.1 trillion of leases that have not yet commenced, roughly 2.3 times their combined $480B of debt: Microsoft $329B, Oracle $288B, Meta $279B, Amazon about $137B and Alphabet $85B.
  • Maturities are stretching. 2026 deals included a 100-year sterling bond from Alphabet at 6.125% and 50-year dollar tranches from Alphabet and Amazon, and Alphabet’s 40-year coupon rose from 5.75% in February to 6.50% in August, while Oracle paid 6.85% in February.
  • Project vehicles are pricing well wide of their sponsors: the $27.3B Hyperion financing for Meta’s Louisiana campus priced at 6.581%, and a $12.5B financing for its El Paso campus at about 7.5%. Meta’s 10-Q puts its maximum exposure to loss on Hyperion at $46.03B.
  • Credit stress has concentrated in Oracle: S&P cut its rating to BBB- on July 9, 2026 according to press reports, its five-year credit default swap spread rose from 144 basis points at the start of the year to 215 in late July, and its long-dated bonds were yielding about 8.4% in early October, according to press reports.
$450BGlobal AI-related debt issuance, 2026 to early September
$1.1TLeases not yet commenced at five hyperscalers, latest quarter
100 yearsLongest AI-era bond: Alphabet sterling, due 2126
5.29%10-year Treasury yield, Sept. 30, 2026

Why a debt ledger

Our AI capex ledger showed hyperscaler capex reaching 96% of operating cash flow in Q2 2026. Once spending absorbs nearly all internally generated cash, the marginal dollar comes from capital markets. This report tracks that dollar across four channels: corporate bonds, off-balance-sheet project vehicles, leases, and private credit and securitisation. It also records how credit markets and regulators have responded.

The bond ledger: largest deals, September 2025 to October 2026

IssuerDateSizeLongest tranchePricing notes
OracleSept. 24, 2025$18.0B40 years (6.10% due 2065)Six tranches
MetaOct. 30, 2025$30B40 yearsSix tranches at 50 to 110 bp over Treasuries; orders of $125B
AlphabetNov. 2025$17.5B and EUR 6.5B50 years (5.70% due 2075)Eight dollar tranches
AmazonNov. 17, 2025about $15B40 yearsSix tranches
OracleFeb. 2, 2026$25B40 years (6.85% due 2066)Eight tranches; alongside $5B of mandatory convertible preferred and a $20B share sale program
AlphabetFeb. 9 to 10, 2026$20B, GBP 5.5B and CHF 3.1B100 years (GBP 1B at 6.125% due 2126)Dollar coupons of 3.70% to 5.75%
AmazonMar. 10 to 11, 2026$37B and EUR 14.5B50 years (6.05% due 2076)Eleven dollar tranches
MetaApr. 30, 2026$25B40 years (due 2066)Coupons of 4.55% to 6.45%
AlphabetMay 2026EUR 9.0B, CAD 8.5B and JPY 576.5B40 years (yen, due 2066)Euro coupons of 3.20% to 4.80%
NvidiaJune 15, 2026$25B30 years (due 2056)Seven tranches
SpaceX (owner of xAI)June 23, 2026$25B30 years (due 2056)Coupons of 5.35% to 6.65%
AmazonJuly 7, 2026$25B40 years (6.25% due 2066)Spreads of 40 to 125 bp over Treasuries; orders of $62B
AlphabetAug. 6, 2026$25B40 years (6.50% due 2066)Spreads of 33 to 130 bp over Treasuries
AmazonSept. 9, 2026GBP 4.25B19 yearsFour tranches

Alphabet’s first-half 2026 notes, Meta’s notes priced April 30, 2026 and Oracle’s terms are from SEC filings. Meta’s interest figure in the table below is interest on its notes net of capitalised interest, a narrower measure than the others. Other deal terms are from press and law firm reports listed in Sources. Order book and spread figures are as reported at pricing.

Three patterns stand out. First, size: Alphabet’s 10-Q shows $56.2B of net debt proceeds in the first half of 2026 plus $19.1B of net proceeds from 6.25% mandatory convertible preferred stock, and Amazon’s shows $67.0B of long-term debt issued in the same six months. Second, tenor: issuers are borrowing for 40, 50 and in one case 100 years to fund assets, chips in particular, with far shorter useful lives. Third, cost: Alphabet’s 40-year coupon rose from 5.75% in February to 6.50% in August as supply built and Treasury yields climbed.

Coupon on 40-year US dollar tranches, selected deals (%, as reported at pricing)
Alphabet, Feb. 20265.75%
Oracle, Sept. 20256.10%
Amazon, July 20266.25%
Meta, Apr. 20266.45%
Alphabet, Aug. 20266.50%
Oracle, Feb. 20266.85%

Balance sheets: debt, cash and the lease pipeline

Company (as of)DebtCash and marketable securitiesNet cash (net debt)Quarterly interest expenseLeases not yet commenced
Alphabet (June 30, 2026)$101.1B face$242.5Babout $141B$1,278M (a year earlier: $261M)$85.2B
Amazon (June 30, 2026)$128.9B long-term$123.0Babout ($6B)$1,314Mabout $137B (sum of disclosed schedule)
Meta (June 30, 2026)$84.0B face$90.3Babout $6B$754M (a year earlier: $232M)$279.0B
Microsoft (June 30, 2026)$40.3B$76.8Babout $37Bn/a$329.1B (press report of 10-K)
Oracle (Aug. 31, 2026)$125.3B$37.1Babout ($88B)$1,428M (a year earlier: $923M)$288B

On reported debt alone, four of the five look comfortable; only Oracle carries heavy net debt. The lease column changes the picture. Leases that have been signed but have not yet commenced are disclosed in the notes and do not appear on the balance sheet until the data center is delivered. They total about $1.1 trillion across the five, against about $480B of debt. Meta’s 10-Q adds that it signed about $68B of further leases in July 2026, after the balance sheet date. Interest expense has also stepped up sharply: nearly five times higher than a year earlier at Alphabet and more than three times at Meta.

Off the balance sheet: project vehicles

VehicleSponsor and tenantFinancingKey terms
Beignet Investor (Hyperion, Louisiana)Blue Owl 80%, Meta 20%; leased to Meta$27.3B of 6.581% amortising notes due May 2049, priced Oct. 16, 2025 at 225 bp over TreasuriesFour-year lease renewable to 20 years; residual value guarantee from Meta; Meta’s maximum exposure to loss $46.03B; not consolidated
Sopaipilla Investor (El Paso, Texas)BlackRock funds 80%, Meta 20%; leased to Meta$12.5B of notes due 2048, priced July 27, 2026 at a yield of about 7.5%Triple-net lease with a residual value guarantee, per press reports
Vantage campuses (Texas and Wisconsin)Vantage; Oracle and OpenAI capacity$38B loan package led by JPMorgan and MUFGReported September 2025
Saline Township, MichiganRelated Digital; Oracle tenant$16B project; Pimco anchors the fixed-rate debtAnnounced April 24, 2026
Pike County, OhioSB Energy; leased to OpenAINvidia guarantee of up to $105BNvidia’s filings show total guarantee exposure of $108.5B

The structure is consistent: an investor-owned vehicle borrows against a long lease, the tenant commits for an initial term of only a few years, and a residual value guarantee protects lenders if the tenant leaves. The tenant keeps the debt off its balance sheet, and investors are paid for the difference. Hyperion’s notes priced at 225 basis points over Treasuries when Meta’s own 40-year bonds priced the same month at 110. Rating agencies differ on the treatment: press reports say Moody’s has indicated it may add such obligations to adjusted debt, while S&P assigns no debt to the Hyperion guarantee. Our gigawatt ledger tracks the campuses themselves.

Private credit and securitisation

Below the investment-grade bond market, three channels are growing quickly.

  • Data center securitisation. Issuance of data center asset-backed and commercial mortgage-backed securities was about $26B in 2025 on preliminary figures, up from $11.4B in 2024, according to a CRE Finance Council primer citing JPMorgan. A Structured Finance Association paper citing Barclays puts the amount outstanding at $61B in 2026, against $4B in 2020.
  • GPU-backed loans. CoreWeave has raised a series of delayed-draw term loans secured on chips and customer contracts, including an $8.5B investment-grade facility at SOFR plus 2.25% and a $3.1B syndicated facility in 2026. Its total debt was about $35B at June 30, 2026. We cover the operators in our neocloud scorecard.
  • Private credit. Blue Owl and Pimco anchor the Meta and Oracle-linked vehicles above. Morgan Stanley’s July 2025 research estimated $2.9 trillion of global data center spending from 2025 to 2028 with a $1.5 trillion financing gap, of which it expected private credit to supply about $800B.

How much more is coming

EstimateFigureSource
Five hyperscalers’ US bond issuance, 2025$121B, against a 2020 to 2024 average of $28B a yearBofA via Reuters, Jan. 15, 2026
Four hyperscalers (excluding Microsoft), 2026 through July 7about $194B, against about $108B in 2025LSEG via Reuters, July 29, 2026
Global AI-related debt, 2026 to early Septemberabout $450B, more than double 2025Bank of England FPC record citing Morgan Stanley
2026 technology, media and telecom bond issuance forecast$540B, raised from $450BJPMorgan via Bloomberg, Aug. 10, 2026
Debt-financed AI capex, 2026 to 2030about $4.1 trillionJPMorgan, cited in the FPC record

The AI labs sit behind much of this demand. Press reports of Anthropic’s confidential prospectus say it expects to spend at least $518B on AI infrastructure over about a decade, and a report on OpenAI’s finances cites about $665B of off-balance-sheet purchase commitments. Neither document is public, and both figures should be treated as reported rather than filed. They matter here because the labs’ contracts are the collateral, directly or indirectly, for a large share of the financings above.

Credit market signals

  • Oracle. S&P lowered Oracle to BBB-, the lowest investment-grade rating, on July 9, 2026, and Moody’s rated it Baa2 with a negative outlook as of February 2026, according to press reports. Its five-year credit default swap spread rose from 144 basis points at the start of 2026 to 215 on July 27. Its long-dated bonds yielded about 8.4% in early October, according to press reports. Oracle’s own 10-Q shows senior notes with a fair value of $105.7B against $125.0B outstanding.
  • New-issue pricing. Reuters, citing LSEG, reported that 78 of 91 hyperscaler bonds issued in 2026 were trading wider than their issue spread by July 28, and that the median new-issue concession had risen to 12 basis points from 2.25 in 2025.
  • Ratings elsewhere. Alphabet (AA+), Amazon (AA), Meta (AA-) and Microsoft (AAA) carried stable outlooks at S&P as of late May 2026. We found no 2026 rating change for any of the four.
  • Project loans. Press reports in mid-September said about $18B of loans for a New Mexico campus linked to Oracle were quoted at about 89 to 91 cents on the dollar; later reports said Oracle had sent a force majeure notice on the project.
  • Rates. The Federal Open Market Committee raised its target range by a quarter point to 3.75% to 4.00% on September 16, 2026. The 10-year Treasury yield ended September at 5.29%, up from 5.01% on the day of the decision, which raises the cost of every refinancing in this ledger.

What regulators have said

Official-sector language has shifted from observation to concern during 2026. The Bank for International Settlements noted in March that hyperscaler gross issuance topped $100B in 2025 and that off-balance-sheet vehicles are tightening links between the companies and non-bank investors. The Federal Reserve’s May Financial Stability Report recorded that bond issuance by the largest investment-grade cloud companies neared $100B in the first quarter alone. The Bank of England’s Financial Policy Committee, in the record of its September 25 meeting, said an increasing volume of AI investment was being financed with debt and noted that hyperscalers accounted for 47% of sterling corporate issuance in 2026 to date. The International Monetary Fund’s October 2026 full Global Financial Stability Report is due on October 13, after this report’s data cut-off.

Risks

  • Asset and liability mismatch. Bonds of 40 to 100 years and leases of 15 to 20 years are funding chips that depreciate over about five to six years.
  • Hidden leverage. About $1.1 trillion of uncommenced leases and guarantees on project vehicles do not appear in headline debt figures.
  • Counterparty concentration. A small number of loss-making AI labs underpin the contracts that secure many of these financings.
  • Refinancing at higher rates. A 10-year Treasury yield above 5% and wider concessions raise the cost of rolling shorter-dated tranches.
  • Private market opacity. Terms, covenants and marks on private credit and project loans are not public, so stress may surface late.

Methodology

Scope and period: debt and debt-like financing tied to AI infrastructure from September 2025 to early October 2026, with balance sheet data from each company’s latest quarterly filing (June 30, 2026 for Alphabet, Amazon, Meta and Microsoft; August 31, 2026 for Oracle). Data was gathered through October 11, 2026.

Sources and definitions: issuance by Alphabet, Amazon, Meta and Oracle, debt balances, interest expense and lease disclosures are taken from Form 10-Q filings and earnings releases where available. Deal terms not in filings (order books, spreads, and deals by Nvidia, SpaceX and the project vehicles) come from press and law firm reports. Leases not yet commenced are as disclosed in lease notes; Amazon’s figure is our sum of its disclosed payment schedule because the stated total could not be read, and Microsoft’s is from a press report of its 10-K. Net cash is cash and marketable securities minus debt.

Computations: lease and debt totals ($1,118B and $480B), net cash figures, interest expense multiples and chart values were computed in Python from the sourced inputs. Chart bars are scaled to the largest value.

Limitations: aggregate issuance figures come from bank and data-provider research as reported by Reuters, Bloomberg and the Bank of England, and use differing definitions of AI-related debt. Oracle’s rating actions and credit default swap levels are from press reports. Anthropic and OpenAI obligations are from press reports of non-public documents. A clean 2026 year-to-date figure for data center securitisation could not be verified and is not shown. This report is not investment advice.

Sources

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Questions on this report

How much debt has been raised to fund AI infrastructure in 2026?

Global AI-related debt issuance was about $450B by early September 2026, more than double all of 2025, according to Morgan Stanley figures cited by the Bank of England. Four hyperscalers alone sold about $194B of bonds through July 7, per LSEG data reported by Reuters.

What are leases not yet commenced and why do they matter?

They are signed data center leases that have not started, so they are disclosed in notes but not yet on the balance sheet. Five hyperscalers disclose about $1.1 trillion of them, roughly 2.3 times their combined $480B of debt.

Which AI infrastructure borrower shows the most credit stress?

Oracle. Press reports say S&P cut it to BBB- in July 2026, its five-year credit default swap spread rose from 144 to 215 basis points between January and late July, and its long-dated bonds were yielding about 8.4% in early October 2026.

BlockWest Research reports are built from public filings, company disclosures and third-party data providers named in each report. Figures are point-in-time and are not updated after publication unless noted. This is research and commentary, not investment advice. Spotted an error? Email the desk via the contact page.

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