US STOCKS-Wall St drops on Trump's threats of govt shutdown, NAFTA end By: Reuters: Company News August 23, 2017 at 10:02 AM EDT * Indexes lower: Dow 0.36 pct, S&P 0.34 pct, Nasdaq 0.35 pct (Updates to open) Read More >> Related Stocks: Home Depot Interpublic GroupCompanies Lowe's Companies Omnicom Group