By Lewis Kra us kopf

Summary:

– Tech accounts for 36% of S&P 500 , nearly half including mega-cap names.

– AI -fueled stocks like Nvidia and Palantir drive recent gains and pullbacks.

– High valuations and heavy sector weighting make broader market sensitive to tech trends.

NEW YORK — This week’s wobble in shares connected to artificial intelligence is a stark reminder that the U.S. stock market is ever more reliant on the tech nology sector to drive it higher.

The S&P 500 and Nasdaq Composite on Tuesday suffered their biggest one-day drops in nearly a month, weighed down by a sharp tech decline. The indexes recovered somewhat on Wednesday, while the tech group extended losses slightly.

Fueled by a long period of strong performance, tech is by

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