After Friday's big selloff as President Trump fired back at China's tightening of rare earths export curbs with higher tariffs, investors will be watching closely for the latest trade policy developments. An ongoing federal government shutdown may delay the release of several economic reports, but investors can look forward to a full slate of corporate earnings from big banks and mainstays in the semiconductor industry. JPMorgan Chase, Wells Fargo, Goldman Sachs, and American Express are on the list of majo ...