US-China trade truce euphoria is giving way to worry over economic slowdown in the wait for the latest US consumer inflation report

Stock futures were mixed Tuesday after kicking off the week with massive gains fueled by a de-escalation in the trade spat between the U.S. and China.

Monthly data for the consumer price index showed that prices rose 0.2% in April, which is what analysts on Wall Street had forecasted. That puts CPI at 2.3% year-over-year and core CPI at 2.8%. Bullish stock-index futures traders appeared pleased with the data.

Stocks looked set for losses on Tuesday as investors locked in their gains from a stellar trading session. Signs of thawing trade tensions between the U.S. and China sparked an eye-popping rally Monday.

FIIs added 78,532 long contracts and covered 29,899 shorts, boosting their net long position by 108,431 contracts, taking the long-short ratio up from 1.88 to 1.94.

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,