Bank stocks had run up ahead of the start of the Q4 earnings season, on favorable trends in treasury yields and the market’s Fed expectations.The pullback in the stocks following the quarterly releases looked like a sell-the-news type of development. But there has been legitimate worries about some of these bank quarterly releases as well. For example, the cost outlook provided by JPMorgan JPM and Goldman Sachs GS was higher than consensus estimates, but we didn’t see this issue with Bank of America (BAC) and Morgan Stanley MS.This suggests that the cost issue at JPMorgan, Goldman Sachs and a few others may be a result of company specific factors.The cost issue will be key across different industries in this reporting cycle, as it will determine near- and long-term margin trends.For more details about the Q4 earnings season and evolving expectations for the coming periods, please check out our weekly Earnings Trends report >>> Big Wall Street Banks Provide Mixed Start to Q4 Earnings Season 5 Stocks Set to Double Each was handpicked by a Zacks expert as the #1 favorite stock to gain +100% or more in 2021. Previous recommendations have soared +143.0%, +175.9%, +498.3% and +673.0%. Most of the stocks in this report are flying under Wall Street radar, which provides a great opportunity to get in on the ground floor.Today, See These 5 Potential Home Runs >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report The Goldman Sachs Group, Inc. (GS): Free Stock Analysis Report JPMorgan Chase & Co. (JPM): Free Stock Analysis Report Morgan Stanley (MS): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research