With Wells Fargo's (WFC 1.13%) earnings report having kicked off earnings season for the big banks last week, investors got to see the beginnings of some of the trends are becoming broad-reaching across several banks this season. In this video, Motley Fool financial analyst Matt Koppenheffer talks about some of those trends, such as the compression of net interest margins and how banks more heavily reliant on fees have performed better, and he highlights which banks hit on all cylinders this quarter, and which ones misfired.