The first warning sign arrived Tuesday following Palantir Technologies’ earnings report — one of the poster children of this year’s market rally.

Palantir fell for four straight sessions, losing more than 15% from Monday’s highs. The damage didn’t stop there: AI heavyweights including Nvidia, AMD and Oracle each sank roughly 10% over the week.

After a six-month winning streak, investors thought the artificial intelligence boom was bulletproof. The week of Nov. 3 proved otherwise.

A series of events sent technology and AI-linked stocks into their worst week since April’s tariff-driven sell-off.

The first warning sign arrived Tuesday following Palantir Technologies’ earnings report — one of the poster children of this year’s market rally.

The company, whose software powers real-time dat

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