Wall Street's biggest bank just bet big on the same AI infrastructure play that the guy who called the 2008 crash is actively shorting.
The Summary
- Goldman Sachs disclosed a 7.2% passive stake in Nebius Group, the AI infrastructure company born from Yandex's restructuring
- Michael Burry opened short positions against Nebius and Oracle, betting against the AI infrastructure boom
- Burry also exited positions in Microsoft and Oracle, signaling broader skepticism about AI sustainability
- Goldman's long position and Burry's short on the same stock creates one of the most interesting divergences in AI infrastructure bets
The Signal
Goldman Sachs now owns 7.2% of Nebius, a passive stake that signals confidence in the AI infrastructure buildout. Nebius is the AI-focused spinoff from Yandex, the Russian tech giant that restructured to separate its international AI operations from its domestic Russian business. The company builds GPU clusters and cloud infrastructure for training large models. Goldman's filing shows they're betting the picks-and-shovels play in AI is real, not hype.
But here's the wrinkle: Michael Burry, the investor who famously shorted the housing market before 2008, is now shorting both Nebius and Oracle. Same company Goldman just went long on. Burry's thesis centers on financial overvaluation in AI infrastructure and concerns about how these companies account for asset depreciation. When you're capitalizing billions in GPU purchases and depreciating them over years, but the actual useful life of cutting-edge chips might be 18 months, your book value starts to look creative.
"Burry's skepticism highlights potential financial overvaluation in AI infrastructure, urging investors to scrutinize asset depreciation practices."
Burry didn't stop at shorting. He completely exited his Microsoft and Oracle positions, stripping out exposure to the two companies most associated with enterprise AI adoption. This isn't a tactical trade. This is a macro call that the AI infrastructure boom is running ahead of actual sustainable demand. Burry sees corrections coming.
Goldman's stake raises another question beyond the directional bet: conflicts of interest. When you're advising clients on AI investments while holding a 7.2% stake in an AI infrastructure provider, your neutrality gets murky. It's passive for now, but passive stakes have a way of becoming active when billions are on the line.
The contrast here is stark:
- Goldman sees AI infrastructure as foundational, worth billions in committed capital
- Burry sees it as overvalued, with accounting that masks real depreciation risk
- Both are making their bets at the same time, on the same stock
The Implication
If you're building in AI or betting on the infrastructure layer, pay attention to both sides of this trade. Goldman's stake confirms that institutional capital is flowing into GPU clusters and training infrastructure. That's real. But Burry's short is a warning that the unit economics and accounting practices might not support current valuations.
Watch how Nebius reports depreciation in the next two quarters. If Burry's right, you'll start seeing faster writedowns and margin compression. If Goldman's right, you'll see revenue growth that justifies the capital intensity. One of these very smart institutions is about to lose a lot of money.