Stock futures fell on Wednesday after the U.S. launched strikes on Iran and as investors turned their attention to inflation data.
Technology stocks in the U.S. looked set to extend Tuesday's losses after artificial intelligence-linked companies fell in Asia trade.
"Not only are we oscillating between deal or no deal with the US and Iran, but markets are also swinging between 1999-style AI exuberance and 2000-type tech crash fears," Deutsche Bank said.
The market is now focusing on today's CPI figure, "where the uncertainty about how the Federal Reserve will act with new leadership under Kevin Warsh increases the uncertainty," SEB said.
Analysts in a Wall Street Journal poll expect headline CPI to rise to 4.2% from 3.8% in April.
