U.S. stock futures point to a lower open as investors brace for one of the busiest weeks of earnings season.

U.S. stock index futures were little changed on Monday as investors braced for a week packed with key economic data and earnings from some of Wall Street's biggest companies, with the Trump administration's trade policy developments also in focus.

After an encouraging week for Wall Street, U.S. stock futures fell late Sunday, ahead of a busy slate of quarterly earnings over the coming days.