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AI stock wobble points to U.S. market reliance on tech theme

Heavy tech exposure and lofty valuations make the U.
Investors are spotlighting the heavy concentration of tech and AI‑exposed stocks in the U.S. market, noting that a confirmed pull‑back in that segment could ripple across broader indices.
The tech sector weight in the S&P 500 has risen to around 36 % from under 33 % at the start of the year.
With the forward P/E for tech near 32× versus a longer‑term average of ~22×, strategists say this part of the market is due for a correction.
While the current move may serve as a reset, sustained weakness could raise concerns about the broader rally’s durability.