AI Infrastructure Sell-Off Puts Miami’s Hut 8 in Focus

The AI boom just had a week where the story was debt, not demand.

CoreWeave and Nebius both closed the week down more than 25%, Yahoo Finance reported. Technology fell with them, and the S&P 500 and Nasdaq ended the week negative.

What Spooked Investors?

The trigger was financing. A Bloomberg report that CoreWeave’s unsecured bonds had slid to levels read as strain set off the selling, 24/7 Wall St. reported.

The same coverage cites CoreWeave’s own filing, which admits a heavy reliance on continued capital market access.

Baird strategist Ted Mortonson pointed to a higher cost of capital and “a lot of scrutiny now on circular finance.”

MAIN explained why in Why Wall Street is nervous about Nvidia’s circular deals. When a chipmaker also funds its customers, the demand can look larger than it is.

Nvidia holds roughly a 10% stake in CoreWeave. CEO Jensen Huang tried to calm the market by voicing optimism about the company.

Mortonson said CoreWeave, Nebius and Oracle are probably at the bottom of tech on free cash flow.

Not everyone saw a crack. Patrick Moorhead of Moor Insights & Strategy called it “just another scare,” Yahoo Finance reported.

Wedbush’s Dan Ives pointed to CoreWeave’s revenue backlog of roughly $104 billion. UBS called it a recalibration of expectations, not a break in the AI investment story.

Ives called it “same script, different cast,” comparing it to the software sell-off earlier this year. Commentary from chip equipment maker ASML and chipmaker TSMC pointed to strong AI demand.

How Is Miami Money Handling the Stress?

The debate is about how AI infrastructure gets paid for. One Miami company answered it differently.

Hut 8 is headquartered on Brickell Avenue. It closed a $1.07 billion bank revolver on September 24. MAIN covered Miami’s Hut 8 landing a $1.07B AI data center loan.

The facility is non-dilutive, so Hut 8 did not have to sell equity. It was undrawn at closing.

Hut 8’s two big campuses are funded separately. Each has its own non-recourse bond, structured to amortize in full.

That is a different posture from a company leaning on capital markets. A bank line and project bonds answer to a few lenders, not to daily trading in a company’s bonds.

CFO Sean Glennan said the facility gives Hut 8 flexibility on when and how it deploys capital.

MAIN explained the category in What Is a Neocloud?. These firms rent GPU power to AI labs, and they fund the buildout with multi-year contracts and debt.

That model carries two known risks, MAIN reported. One is a refinancing wall. The other is customer concentration.

Microsoft alone accounted for roughly two-thirds of CoreWeave’s revenue last year. A sell-off hits hardest where borrowing and dependence meet.

Miami has a second link to this story. In July, AI hardware names including Nebius and CoreWeave fell sharply and forced a hedge fund to sell, as MAIN reported.

Ken Griffin’s Citadel bought roughly $16 billion of that fund’s public holdings. It then resold more than 80% in block trades. MAIN covered the sequence in Miami’s Ken Griffin just cleaned up a $16B AI wreck.

A Miami firm was the buyer when the AI trade last unwound. Its experience is a reminder of who provides liquidity when sentiment turns.

The Test Ahead for Metrobloks and Local Data Centers

Local projects are heading into the same market. Metrobloks MIA-A1 near Sweetwater is aimed at a late-2026 opening for dense AI workloads.

Projects like it need capital years before they earn revenue. Interconnection deposits, utility payments and equipment all come first.

That is why this week matters beyond Wall Street. Cost of capital sets which data centers get built and who owns them.

For AI infrastructure, the question is no longer who can build. It is who can pay for it.

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