U.S. Stock ETFs Retreat as Oil Crash Adds to Economic Concerns

U.S. markets and stock exchange traded funds retreat as the record sell-off in crude oil and weak outlook further added to fears that we are in for a longer-than-expected economic slump. On Tuesday, the Invesco QQQ Trust (NASDAQ: QQQ) was down 3.0%, SPDR Dow Jones Industrial Average ETF (NYSEArca:...