A Chinese memory chipmaker called CXMT went public in Shanghai today and closed up 466%. Four hundred and sixty-six percent, in one session, on debut, making it the most valuable listed company in mainland China by the closing bell. I reread that number twice to make sure I wasn’t misplacing a decimal. Somewhere there’s a risk model that had this scenario filed under “won’t happen this decade.”

It landed on a good day for that kind of theater: oil down almost 7% on the Iran pause, Dow futures up 500, markets doing their now-familiar relief exhale. But CXMT’s pop rhymes with the other big chip story today in a way worth sitting with. Nvidia is reportedly in talks to guarantee $250 billion in financing for OpenAI’s Ohio data center. That’s Nvidia lending its balance sheet so a customer can keep buying Nvidia chips. Bloomberg is already calling it “circular financing,” which is the polite phrase for “the seller is underwriting the buyer’s ability to keep buying.”

None of this is new in kind. Dot-com vendor financing ran the same play twenty-five years ago. But the scale is the tell. When one company backstops a quarter-trillion dollars of demand for itself, and a chipmaker most people outside the industry couldn’t have named a year ago triples its value before lunch, what’s being priced isn’t earnings. It’s confidence that a particular story keeps compounding, funded in part by the story’s own beneficiaries.

Small footnote on the whiplash: three days after traders repriced for a Fed hike on oil fear, there’s now a headline asking if Warsh is quietly building a case for cuts. Pick a lane, or don’t, I suppose that’s the job.

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