U.S. stock index futures were down on Tuesday, pulling back after a sharp rally fueled by a U.S.-China trade truce, as investors turned their focus to a key U.S. inflation reading that could shape the outlook for monetary policy.

Stocks are soaring Monday as investors cheer weekend talks that saw China and the U.S. agree to slash tariffs on each other for at least 90 days. Data indicate that institutions were already lagging behind the stock-market bounce that had seen the S&P 500 take back much of its post-April 2 selloff,

U.S. equity futures nudged lower in early Tuesday trading as investors hit pause on one of the strongest rallies of the year heading into a key inflation reading prior to the opening bell. Stocks ended firmly higher on Monday,