Wall Street pointed toward losses before the opening bell Tuesday as many of the same tech companies that lifted markets to start the week sold off.

Futures for the S&P 500 slid 1% in premarket trading, while the futures for the Dow Jones industrials fell 0.6%. Nasdaq futures tumbled 1.4%.

Palantir Technologies lost some of its recent gains, falling 7% overnight even after its third-quarter earnings topped Wall Street targets. The analytic software company has benefitted from the recent AI frenzy, its shares rising 176% so far this year as of Monday's close.

Chipmaker Nvidia also reversed course Tuesday, falling 1.7% before the bell. Amazon, whose shares jumped Monday after announcing a $38 billion agreement with OpenAI, fell 1.3%.

Criticism has been rising that the broad U.S. market,

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