Trading on Wall Street is mixed early Friday as worries persist about a potential bubble in artificial-intelligence technology, despite another strong earnings report from the sector.

Futures for the S&P 500 slipped less than 0.2%, while futures for the Dow Jones Industrial Average rose 0.2%. Futures for the Nasdaq, where the biggest technology players are listed, fell 0.5%.

The Dow this week is up more than 1.5%, while the Nasdaq is treading water.

Broadcom shares sank nearly 6% overnight as concerns over its sales projections and margin pressure overshadowed record revenue from the chipmaker and AI heavyweight.

A day earlier, Oracle handily beat profit expectations but its stock tumbled more than 10% because of the company's spending blitz. Capital spending for the quarter was 40

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