India, Nov. 3 -- European stocks may open on a sluggish note on Tuesday after the S&P 500 and Nasdaq reversed early gains to end lower overnight on growing pessimism about big tech and the artificial intelligence trade.

U.S. equity futures ticked lower after Apple delivered mixed earnings results. The iPhone maker posted increased quarterly revenue and profits but forecast slightly below-consensus gross margin for the current quarter, citing mounting headwinds from rising component prices.

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