Traders are focusing on the unofficial start of the earnings season. JPMorgan Chase & Co. fluctuated in the premarket after beating estimates for trading and investment-banking fees. Goldman Sachs Group Inc. fell more than 2% after a slight miss in equities sale and trading revenue. Citigroup Inc. rose 1% after revenue beats in every division. Wells Fargo raised a key profitability metric but net interest income slightly missed estimates. Bloomberg's Sridhar Natarajan breaks down all the earnings on "Bloomberg Open Interest." (Source: Bloomberg)
