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US semiconductor stocks head for worst week since 'liberation day' as AI trade reverses

NEW YORK, July 19. An index of U.S. semiconductor stocks was on track for its worst weekly performance since last year's "liberation day" rout, according to market data, as the artificial intelligence trade went into reverse and technology shares fell broadly across Wall Street.

By Ines Ferreira2 min read
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Key takeaways

  • A U.S. semiconductor stock index was on track for its worst weekly performance since last year's 'liberation day' rout as the AI trade reversed.
  • Technology shares fell broadly across Wall Street, with AI-linked names absorbing much of the selling.
  • The AI trade had drawn steady capital inflows into semiconductor makers and related technology shares before coming under pressure this week.
  • Investors who had positioned in semiconductor and technology stocks on expectations of sustained AI-linked spending reduced their exposure during the week.
  • The 'liberation day' selloff of last year, driven by sweeping tariff announcements, remains a reference point for chip investors because of how quickly and how far it moved.

NEW YORK, July 19. An index of U.S. semiconductor stocks was on track for its worst weekly performance since last year's "liberation day" rout, according to market data, as the artificial intelligence trade went into reverse and technology shares fell broadly across Wall Street.

Chip stocks at the center of the selloff

The semiconductor index's weekly trajectory put it among the hardest-hit pockets of U.S. equity markets. Last year's "liberation day" episode, driven by sweeping tariff announcements, had delivered sharp losses to chip stocks over a compressed stretch. This week's decline was being measured against it.

AI-linked technology names absorbed much of the selling. The artificial intelligence trade had drawn steady capital inflows into semiconductor makers and related technology shares over prior sessions. That positioning came under pressure this week.

The AI trade unwinds across Wall Street

Wall Street technology stocks fell broadly as the AI trade reversed. Selling spread through the technology sector, reaching names that had been built up as primary beneficiaries of artificial intelligence infrastructure spending, according to market data.

The pullback interrupted a period of accumulation in AI-related equities. Investors who had positioned in semiconductor and technology stocks on expectations of sustained AI-linked spending reduced exposure during the week.

Why the 'liberation day' comparison matters

The "liberation day" selloff of last year remains a reference point for chip stock investors because of how quickly it moved and how far it reached. Placing this week's semiconductor index decline alongside that episode put the current move in a narrow category of weekly drawdowns for the sector.

Frequently asked

Why are semiconductor stocks falling this week?

They are falling because the artificial intelligence trade reversed, prompting broad selling in technology and AI-linked shares across Wall Street.

What was 'liberation day' and why is it being compared to this week?

'Liberation day' refers to last year's tariff-driven selloff that delivered sharp losses to chip stocks over a compressed stretch, and this week's semiconductor decline is being measured against it.

Which stocks were hit hardest in the selloff?

AI-linked technology names, including semiconductor makers seen as primary beneficiaries of artificial intelligence infrastructure spending, absorbed much of the selling.

What did investors do during the week?

Investors who had accumulated semiconductor and technology stocks on expectations of sustained AI-linked spending reduced their exposure.

When was the article published?

The article was datelined New York, July 19.