 After the closing bell, shares in Nike fell 12% after the athletic retailer disappointed investors by cutting its full-year guidance. Shares in Foot Locker, one of Nike's biggest distributors, fell 5% in response after hours. Later today, the Core Personal Consumption Expenditures Price Index is released. The PCE is the Federal Reserve's favorite gauge of inflation. It's expected to be flat from April to May and 2.5% higher from a year ago.