
Three money stories on the same theme: the AI and fintech capex bill is so big that the financing structures are getting exotic. Airwallex just printed a 50% step-up to a $12 billion valuation on the back of cross-border B2B payments ARR growth. SoFi launched the first US national-bank-issued stablecoin — on a public blockchain, with BitGo as the rails and Mastercard as the settlement layer. And Apollo and Blackstone are circulating a $36 billion TPU-backed debt deal to finance Anthropic's AI infrastructure buildout. This is what "AI capex" actually looks like when it shows up on a balance sheet.
What You Need to Know: Airwallex closed a new funding round at a ~$12 billion valuation led by Lee Fixel's Addition — a 50% step-up from its $8B Series G in December 2025. SoFi became the first US national bank to issue a stablecoin on a public, permissionless blockchain, with SoFiUSD rolling out to its 14.7M members in May 2026 and Mastercard as a settlement partner. Apollo and Blackstone are structuring a $36B debt deal backed by Anthropic's TPU procurement (Broadcom-manufactured), giving the labs a way to monetize the AI buildout without waiting for IPO proceeds.
On May 28–29, 2026, Reuters reported via Axios that Airwallex had closed a new funding round at approximately $12 billion, led by Lee Fixel's Addition, the New York-based VC firm. The step-up is 50% from Airwallex's $8 billion Series G, which closed in December 2025 (Airwallex newsroom). TLDR's framing of the round cites ARR growth from $1B to $1.5B in six months — the unit economics of cross-border B2B payments scale harder than consumer fintech, and the market is starting to price that. Airwallex's recent moves include establishing San Francisco as a dual global HQ, with a stated plan to deploy more than $1B from 2026–2029 to scale US operations (Fintech Futures coverage).
On December 18, 2025, SoFi Bank, N.A. became the first US national bank to issue a stablecoin on a public, permissionless blockchain. The asset, SoFiUSD, is fully reserved and built on top of BitGo's Stablecoin-as-a-Service infrastructure (minting, redemption, compliance). SoFi's investor announcement frames SoFiUSD as infrastructure for banks, fintechs, and enterprise partners, not just a SoFi-only product. In March 2026, Mastercard partnered with SoFi to enable SoFiUSD settlement across Mastercard's global payments network — a notable step because it makes the stablecoin usable for merchant settlement, not just on-chain transfers. In May 2026, SoFi made SoFiUSD available to its 14.7M members, per PYMNTS coverage. The bank-stablecoin category is now a meaningful part of the 2026 stablecoin market, with SoFiUSD joining the wave of JPM Coin and other bank-issued assets (eco.com's survey).
On May 29, 2026, Yahoo Finance reported that Apollo and Blackstone are seeking investors for a TPU-backed debt facility tied to Anthropic's AI infrastructure buildout. The structure: a newly formed special purpose vehicle issues debt, uses the proceeds to purchase tensor processing units (TPUs) from Broadcom, and leases compute capacity back to Anthropic under a long-term contract. Rebellion Research's writeup describes the deal mechanics. The asset class is unusual but not unprecedented — power-purchase agreements effectively did the same thing for renewable energy in the 2010s. The thesis is that the future cash flows from inference (and Anthropic's $7B+ run-rate revenue trajectory) can support investment-grade-style debt, even though the company itself is not yet public. The facility would give Anthropic a way to monetize its committed TPU procurement without diluting further or waiting for IPO proceeds. (Note: Anthropic did later file a confidential S-1 on June 1, 2026 — but the $36B facility is a parallel financing path, not a substitute for the IPO.)
Three stories, one underlying pattern: the AI and fintech capex bill is so large that the financing structures around it are getting more creative than the actual product announcements. Airwallex's 50% step-up isn't a fintech story in isolation — it's a vote that the cross-border B2B category will keep compounding as the AI-economy trade flows scale. SoFiUSD isn't a crypto story in isolation — it's a vote that the bank-issued stablecoin is the compliance-acceptable version of the dollar on a public chain. And the $36B TPU-backed facility isn't a debt story in isolation — it's the template for how the AI labs will fund the next leg of the capex bill without further equity dilution.
The most underrated of the three is the SoFiUSD + Mastercard combination. A US-bank-issued stablecoin that can settle across the Mastercard network is meaningfully different from USDC or Tether because the compliance perimeter is bank-grade, and the rails are merchant-grade. If SoFiUSD gets traction with even a fraction of Mastercard's merchant base, the bank-issued stablecoin category becomes the default for any regulated payment use case, and the offshore stablecoin issuers start losing the institutional on-ramp. The question is whether SoFi can scale the operational load — BitGo is a strong partner, but bank-issued stablecoins at scale are a new problem class.
The $36B facility is the one with the most second-order consequences. If Apollo and Blackstone can close a TPU-backed investment-grade-style debt deal, every other AI lab will want one. The next 12 months will bring OpenAI, xAI, and CoreWeave announcing similar structures. The risk is concentration: the debt is only as good as Anthropic's inference revenue, and the underlying TPUs have a useful life measured in years, not decades. If the AI capex cycle peaks before the TPU leases are paid off, the asset class will look like 2014-era yieldco. If it doesn't, this is the financing structure that lets the AI buildout scale to $1T+ in committed infrastructure.
The Airwallex round is the most boring of the three and the most reliable signal. A 50% step-up in six months, ARR growing 50%, a clear US-expansion story — this is the kind of compounding that public-market investors will underwrite at a 10–15x revenue multiple when the IPO comes. If you have a B2B cross-border business and you haven't looked at the unit economics in 2026, this is the bar.
Airwallex printed a 50% step-up to a $12B valuation in six months on $1.5B ARR. SoFi launched SoFiUSD — the first US national-bank stablecoin on a public chain — with Mastercard handling settlement. Apollo and Blackstone are circulating a $36B TPU-backed debt facility for Anthropic. The fintech and AI capex bill is so large that the financing structures are getting more creative than the products.
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Source: TLDR | mr.technology — The Master Skill Index