US STOCKS-S&P 500 ends slightly higher after Fed gives mixed signals By: Reuters: Company News September 18, 2019 at 16:37 PM EDT * Indexes: Dow +0.13%, S&P 500 +0.03%, Nasdaq -0.11% (Updates with close) Read More >> Related Stocks: Amazon.com Comcast Corp FedEx Corp Restaurant Brands International Roku Inc