Futures for the Dow Jones Industrial Average and other major stock indexes pared gains Wednesday, as Wall Street reacted to the potential start of U.S.-China trade talks. Next, the Federal Reserve's interest-rate decision and subsequent comments from Fed Chairman Jerome Powell are scheduled for later in the session.

U.S. stock futures bounced and Asian currencies rose on Wednesday, as investors welcomed news of a meeting between top U.S. and Chinese trade officials, set for the weekend in Switzerland, as a chance to tone down the trade war.