US STOCKS-Wall Street tumbles as U.S.-China trade spat escalates By: Reuters: Company News June 18, 2018 at 10:08 AM EDT * Indexes down: Dow 0.95 pct, S&P 0.74 pct, Nasdaq 0.75 pct (Updates to open) Read More >> Related Stocks: Alphabet-A Boeing Co Caterpillar Jd.com Inc ADR