Asian stocks are mixed ahead of the Fed’s last rate decision this year. U.S. futures rose while oil prices were mixed. Nissan Motor Co.’s shares surged nearly 24% after reports said the company was considering a possible merger with Honda Motor Co. On Tuesday, the S&P 500 slipped 0.4% and the Dow Jones Industrial Average dropped 0.6%. The Nasdaq composite lost 0.3% from its record set the day before. Nvidia, the superstar stock that’s been a big reason for Wall Street’s run to records this year, fell for its eighth loss in the last nine days.