The FTSE 100 is called to open 22 points higher at 7350. U.S. stocks were mixed, as a surge in Boeing's stock helped the DJIA eke out a small gain. Pessimism surrounding the trade talks between the U.S. and China sent the dollar and oil lower. Gold was slightly higher after last week's big losses. Stocks were mixed Tuesday in Asia as investors awaited further developments on the U.S.-China trade front and kept an eye on the situation in Hong Kong. Treasuries recouped some of their recent losses.