Dow Jones futures fell slightly after hours, along with S&P 500 futures and Nasdaq futures. The Fed's inflation gauge will be released before the open. Costco Wholesale, Zscaler, Ulta Beauty and Dell Technologies reported after the close.

US stock markets surged Tuesday, fuelled by tech gains and easing Treasury yields, following a US-EU trade truce that calmed tariff escalation fears.

U.S. stocks drifted lower, as Wall Street's momentum cooled a day after charging back within a few good days’ worth of gains from its all-time high.