US equity markets opened the week sharply lower, with traders eyeing quarterly results from Nvidia Corp (down -1.88%) and some major retailers later in the week as well as delayed economic data - Dow fell -627-points or -1.33% American Express Co dropped -4.46% and was the worst performer in the 30-stock index after the financial-services giant said its U.S. Consumer Card Member loans net write-off rate was 2.2% in October, up from 1.9% in September, while its U.S. Small Business Card Member loans net write-off rate ticked up to 2.6% from 2.5%.
