Stock Market Today: Dow Futures Fall, Nasdaq Gains As Middle East Tensions Intensify— Palo Alto, Marvell In Focus (UPDATED)

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(Editor’s note: The future prices of benchmark tracking ETFs and the headline were updated in the story.) U.S. stock futures were mixed on Wednesday, after a record close on Tuesday, as the Dow Jones and S&P 500 declined but the Nasdaq 100 rose.