If you think Bank of America (NYSE:BAC) is a bank that's just too complicated to ever own stock in, think again.

Though BofA does have a derivatives portfolio and an investment banking that has trading operations, a huge chunk of the bank's income still comes from basic banking businesses. And it's in those basic banking businesses that the bank has a big advantage.

In the video below, Motley Fool banking analyst Matt Koppenheffer breaks down one simple reason why Bank of America is a bank that's still worth owning.