US equity markets retreated following another big day on the third quarter earnings calendar - Dow fell -166-points or -0.58% . Walmart Inc (down -1.6%) that it will offer “Black Friday Deals for Days” throughout November, both online and in stores. There are three events planned, starting online on 4 November. The broader S&P500 -0.66%, with Consumer Discretionary (down -1.43%) leading eight of the eleven primary sectors lower. The technology-centric Nasdaq lost -0.80%. Amazon.com Inc (down -2.32%) fell over >2% to lead most of the Big Tech complex lower. In merger and acquisition (M&A) news, ConocoPhillips fell -1% after a Bloomberg news report it was in talks to buy Concho Resources CXO, citing people familiar with the matter.