US STOCKS-Wall St dragged lower by tech stocks; Yellen in focus By: Reuters: Company News June 27, 2017 at 13:34 PM EDT * Indexes down: Dow 0.10 pct, S&P 0.27 pct, Nasdaq 0.82 pct (Updates to early afternoon) Read More >> Related Stocks: Alphabet-A Bank of America Charter Communications Inc Comcast Corp Facebook JPMorgan Chase & Co Microsoft Sentinelone Inc Cl A