Is the AI Bubble Bursting? How to Tell a Correction From a Top

Every great bull market ends with the same question being asked one too many times: is this finally the top? The trouble is that the question feels most urgent precisely when it is most likely to be wrong — and feels irrelevant right up until it is fatally right. AI has carried this market for the better part of two years. After the latest drawdown, the bubble debate is back with full force.

We are not in the business of calling tops. We are in the business of measuring conditions. A correction and a bursting bubble are indistinguishable for the first week or two; what differs is the underlying structure. Here is the framework we use.

1. Is earnings growth still funding the move?

Healthy bull markets are paid for by rising profits. Bubbles are paid for by rising multiples. When a sector keeps climbing while forward earnings estimates flatten or fall, the gap between price and fundamentals is the bubble — and it always closes eventually. Track the direction of estimate revisions, not just the headline beats.

2. Has the leadership narrowed to a handful of names?

Late-stage rallies get thin. When an index keeps making highs on the backs of three or four megacaps while the average stock quietly rolls over, the move is living on borrowed time. Breadth deteriorating under a rising index is one of the most reliable late-cycle tells there is.

3. Is the marginal buyer leveraged or hedged?

Markets do not top on bad news. They top when the last committed buyer has already bought — and the only thing left to do is sell.

Watch positioning. When short interest collapses to multi-year lows, retail call buying goes vertical and everyone is on the same side of the boat, the fuel for further upside is gone. Conversely, a wall of skepticism and elevated hedging usually means a rally still has doubters to convert.

4. What are insiders doing with their own shares?

The people who know a business best vote with their own money. Heavy, broad-based insider selling near the highs is not proof of a top — executives sell for many reasons — but a complete absence of insider buying combined with accelerating sales is a posture worth respecting.

5. Does the selloff find buyers, or just keep going?

The cleanest real-time tell is simply how the market behaves on weakness. Corrections get bought; tops do not. If every bounce is sold and institutions are distributing into strength, the character of the market has changed — and that change shows up in the flow data long before it shows up in the headlines.

You cannot watch all of this by hand

Estimate revisions, breadth, positioning, insider activity, flow — no human tracks all five across the whole market in real time. TradersQuant does it for you and surfaces when the conditions are quietly shifting, so you are not the last committed buyer finding out from a red screen.