Among individual movers, SoundHound SOUN rallied 30% after the voice AI platform provider posted a more than 200% leap in second-quarter revenue, to a record $42.7 million. It also raised its full-year midpoint sales outlook to $169 million, up from $167 million. Its loss of 3 cents per share narrowed from the year-earlier quarter.

US stock futures edged higher as Wall Street assessed President Trump's nomination of Stephen Miran to the Federal Reserve Board of Governors and the close of the first day under his sweeping new tariffs.