Weekly Real Estate News
Summary: Nebius signed a $3.5 billion senior secured financing agreement with Citi on October 17 and publicly disclosed it October 22. The capital is intended for AI computing infrastructure and other corporate purposes, including data-center expansion. It is not a $3.5 billion property acquisition, and the company has not said how much will be spent specifically on buildings.
AMSTERDAM, Oct. 28, 2026 — One of the largest recent financing agreements tied to the artificial-intelligence infrastructure buildout has an important commercial real estate component, but the debt is not a conventional property mortgage. Nebius Group has entered into a $3.5 billion senior secured credit facility with Citibank to finance computing infrastructure and general corporate requirements as it expands its data-center footprint.
The agreement was signed October 17, according to Nebius’s Form 6-K filed with the Securities and Exchange Commission. The company announced the financing October 22. Those are separate dates: the public announcement did not mark the signing of a new agreement on October 22, and this October 28 report is a catch-up, not a newly completed transaction.
Short-term capital for a long-term buildout
The 364-day facility matures October 16, 2027. Its initial annual interest margin is 2.75 percentage points above Term SOFR, increasing by 0.25 percentage point for each 90-day period after October 17, up to a 3.50-point margin, subject to contractual adjustments. That floating-rate structure leaves financing costs sensitive to the benchmark rate and to the amount and timing of borrowing.
Citibank is identified in the filing as mandated lead arranger and lender, with affiliated entities serving as agent and security agent. The borrowers are Nebius Group N.V., Nebius Inc. and Nebius B.V. The obligations are secured by substantially all borrower assets and specified equity interests, subject to exceptions and permitted liens. The facility also carries a minimum-liquidity covenant and other customary restrictions.
The financing is significant because data-center developers need to spend heavily on land, buildings, power connections, cooling and advanced computing equipment before many projects produce substantial revenue. Nebius says proceeds can support GPU infrastructure capacity, data-center development, procurement and general corporate purposes. The company did not provide a separate allocation for real estate construction, land, power infrastructure or chips. Describing the entire amount as commercial property lending would overstate the real estate exposure.
Why Citi’s financing matters to commercial property markets
The deal demonstrates how AI infrastructure capital markets increasingly overlap with commercial real estate, equipment finance and corporate credit. The physical campus may look like an industrial development, but a lender’s underwriting also depends on computing hardware, customer contracts, technology obsolescence, operating margins and the cost of electricity.
Nebius says the facility gives it flexibility to sequence other financing sources, including customer prepayments and future asset-backed transactions. Management has cited more than $40 billion in long-term customer commitments as a potential basis for further financing. Those commitments are not the same as cash already received, and future borrowing against them is not guaranteed.
The company has been expanding in the United States. Its Missouri campus groundbreaking announcement described a multibuilding AI facility on approximately 400 acres in Independence, while a separate power partnership outlined plans for fuel-cell generation to help meet computing demand. Those are distinct projects and arrangements; Nebius has not allocated the Citi facility among them in its October disclosure.
Refinancing and execution risks remain
The short maturity is an important distinction. A 364-day bridge facility can provide immediate capital, but it does not by itself establish permanent financing for assets expected to operate over many years. If rates remain elevated or investors become more cautious about AI infrastructure, replacing short-term borrowings could be more expensive than anticipated.
That risk is particularly relevant after recent volatility in bonds linked to the sector. Trepp’s October 27 analysis found wider spreads on senior data-center CMBS bonds through October 23, although the loans in its analyzed pool remained current. Nebius’s Citi agreement is not one of those CMBS transactions, and the two financing structures should not be conflated.
For commercial lenders and investors, the key questions are how much of the facility will ultimately fund physical property versus equipment, how projects reach operating capacity, and whether future customer revenue supports long-term refinancing. The October filing establishes the financing terms; it does not establish the final draw amount, project-by-project uses or future repayment outcome.
Primary sources: Nebius SEC Form 6-K, signed agreement dated October 17 and filed October 22; Nebius company announcement, October 22, 2026. Reporting updated October 28.
