US STOCKS-Trade optimism, energy stocks lift Dow; tech slide hits Nasdaq By: Reuters: Company News September 12, 2018 at 11:54 AM EDT * Indexes: Dow up 0.52 pct, S&P flat, Nasdaq down 0.50 pct (Adds comments, updates prices) Read More >> Related Stocks: Alphabet-A Amazon.com Apple Applied Materials Boeing Co Caterpillar Entegris Inc Facebook Galapagos NV ADR Gilead Sciences Micron Technology Twitter, Inc.