Global shares dropped on Tuesday as tensions between the U.S. and China rose ahead of trade talks. Markets rebounded after U.S. Treasury Secretary mentioned a summit between Trump and Xi Jinping. Both countries are charging port fees on shipping firms amid escalating posturing before the November summit. Stocks in Europe and Asia fell, futures on S&P 500 and Nasdaq also dropped. Gold rose, bitcoin fell, dollar gained against pound and Aussie. Yen strengthened, U.S. 10-year Treasury bond yield down. Two-year yields down as well. Fed expected to cut rates to combat weakening labour market. Euro dipped, Brent crude fell after OPEC report projected balanced supply and demand next year.

Read more at Yahoo Finance: Stocks slide, gold jumps as investors shun risk