The AI boom is starting to break time-tested stock-market signals

Economy MarketWatch By Mark DeCambre 28 Oct 2026 11:25 1 min read
The AI boom is starting to break time-tested stock-market signals

The relationship between gold and platinum used to be a reliable stock-market signal. Has artificial-intelligence spending caused it to short-circuit? Meanwhile, the Fed faces a big question of its own today.

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