Corporate earnings season should pick up steam on Wednesday and that will be the next big test for stocks.

Take note that big financials like Bank of America, Wells Fargo and BlackRock will report ahead of the opening bell, followed by  J.P. Morgan and their disappointing results late Tuesday.

J.P. Morgan earned $1.32 per share, excluding $2.2 billion in tax benefits and other items. This means J.P. Morgan is seen as a bellwether that could set the tone for the rest of the sector come Wednesday.

We could easily see earnings be a particular challenge for stocks this quarter, with analysts expecting a 4.8 percent decline in S&P 500 profits, according to Thomson Reuters. So far, there’s been a trickle of reports, but the season gains momentum Wednesday with results from the major financials and others, like Delta Airlines, Kinder Morgan and Netflix reporting after the close.