The Rating Case Goes Investment Grade

In July we wrote that a GPU lease rate had entered the rating case. Fitch had assigned BB+ to CoreWeave's $2.6 billion delayed-draw term loan, and the income of a GPU fleet became something a rating agency underwrites. That note ended one notch below investment grade.

This week Moody's added two investment-grade prints in two days. On August 11 it assigned a first-time Baa2 to Lambda Compute II LLC, the special-purpose borrower under Lambda's $926 million senior secured term loan. On August 12 it assigned a first-time Baa1 to Nscale Ward County Borrower SPV, LLC, under a delayed-draw facility of up to $1.831 billion. Both ratings carry stable outlooks. Both borrowers are special-purpose entities of private companies that Moody's describes in identical words: “a private AI-focused company providing GPU cloud computing platforms and AI infrastructure solutions.”

The two actions arrive with an unusual gift. They were written a day apart, by the same agency, on the same asset class, under the same project-finance methodology. Read together, they are as close to a controlled experiment as credit markets produce. The variable they isolate is not the chips and not the customer. It is the structure.

01 The curve, five months in

No GPU-collateral instrument carried a public rating before March 31 of this year. The register now holds six rated financings:

Dates are when each rating first entered the public record: agency action dates where published, IREN's via the closing release that disclosed its grades. The IREN financing is one package in two instruments, a $2.10 billion US private placement and a $1.55 billion delayed-draw loan; the company reports it as the first GPU financing in the US private placement market.

The class boundary is ownership of the compute. Rated paper exists nearby: TeraWulf's $3.2 billion notes and Cipher Mining's roughly $1.7 billion notes finance data centers that host another company's GPUs under Google-backstopped agreements, so the collateral there is the facility and its contracts, not the compute. SpaceX's June notes are rated and unsecured. This note counts financings where the borrower owns and pledges the GPUs. Private ratings on club deals stay invisible to the public record, and the record is what we count.

Grades are the comparable axis across these deals; formats, tranches and discounts differ, so we do not line up their spreads. The pattern reads directly. Every financing with a rated take-or-pay counterparty sits in investment grade. Every financing without one sits below it. The strongest counterparty on the record carries the highest grade.

Coverage is narrower than the headlines suggest. Moody's has rated four of the six; Fitch three; DBRS two. S&P, which has rated data-center securitizations since 2018, has issued no rating on GPU collateral. KBRA published a framework for the asset class in July and has yet to rate a deal under it. Lambda's facility is the first rated term loan B from a private GPU cloud on the public record; the format matters because a term loan B is distributed, tradeable paper, and tradeable paper eventually prints public marks. Private channels stay invisible to this record, so every first here is a first we can document, not a first in the world.

02 Two borrowers, one day, one notch

The Lambda facility finances GB300 systems at a single QScale data center in Quebec, delivering GPU services to NVIDIA under a take-or-pay master services agreement assigned to lenders as collateral. The Nscale facility finances GB300 and VR200 systems at a Ward County, Texas campus serving roughly 275 megawatts of IT load, under a six-year take-or-pay contract with an unnamed hyperscaler Moody's identifies only as rated at least Aa3. The Nscale action is the first financing on the record to cover Vera Rubin systems.

Moody's names Lambda's customer and its Aa1 rating. Nscale's it describes only as a hyperscaler rated at least Aa3. Counterparty strength alone does not order this pair. The two rationales, read side by side, itemize what does.

Nscale's structure holds what Lambda's lacks. Moody's cites Nscale's “direct agreements with key counterparties in case of bankruptcy of the Issuer” among the rating's supports. On Lambda, the same agency writes that “the non-recourse GPU project financings we have rated have benefited from direct agreements that provide customer-facing lender protections, including cure and step-in rights, termination forbearance, replacement-operator mechanics and, in some cases, a replacement customer contract,” and counts their absence as a constraint. Without one, Lambda's lenders can take the collateral and the contracts but have no pre-agreed framework with NVIDIA to preserve the revenue if Lambda stumbles as operator.

The coverage math points the same way. Moody's forecasts Nscale's debt service coverage at about 1.33x on average against Lambda's 1.20x. Nscale's draw conditions are stricter: Level 3 commissioning, procured power and executed hedges are all conditions to funding. Both borrowers hold three-month operating reserves; both hold debt-service reserves Moody's calls thin against the six-month norm for fully amortizing project debt.

Neither deal escapes the risks the agency names in both actions: power cost variability, first-time data-center operators, service-level regimes that dock revenue for downtime, and execution risk on liquid-cooled rack integration. The notch between Baa1 and Baa2 is what remains after the common risks cancel. It is the price of structure, set by the one agency that graded both in the same week.

03 What the underwriting put on the record

Rating rationales disclose assumptions that no filing publishes. These two put numbers on the record that our other surfaces track daily.

Moody's models Lambda's project at 70 percent GPU utilization and a power usage effectiveness of 1.20. Both are cost assumptions. These contracts pay for availability rather than usage, so revenue is fixed and the borrower carries the power bill. Moody's states that because utilization is at the customer's discretion, higher-than-expected usage would raise power costs while revenue stays fixed. On this structure utilization is an exposure rather than a source of income, and an agency has now published the level it underwrites at.

Moody's models Nscale's coverage between 1.15x and 1.40x across the amortization period, names power cost as the primary source of cash-flow volatility in both projects, and notes that Nscale's GPU financing was funded without cash equity: per-tranche customer prepayments stand in for it, and equity distributions exceed the sponsor's contributions to the related data-center financing by the time commissioning completes.

The debt fully amortizes inside the customer contract in both deals. Lenders in both are underwriting GPU income schedules that run to December 2030 and beyond. GPU income duration is now a quantity two rated structures carry on their amortization tables.

Sources: Moody's rating actions of 2026-08-11 (Lambda Compute II LLC) and 2026-08-12 (Nscale Ward County Borrower SPV, LLC); Fitch rating action commentaries of 2026-04-30, 2026-05-15 and 2026-07-16; IREN closing release of 2026-06-01; CoreWeave DDTL 4.0 lender materials (March 2026); issuer releases as dated; the CCIR credit register (/credit). Dated note, frozen to the actions above; the living surfaces are /credit, /rates and /term.