Investors may be surprised to learn which big bank performed the worst last year. No, it wasn't Bank of America (BAC +1.28%) or Citigroup (C 1.61%), the most frequently maligned too-big-to-fail banks. Instead, it was Wells Fargo (WFC 1.81%), the nation's fourth largest lender by assets and arguably the most respected of the bunch. In the video below, Fool contributor John Maxfield explains how this irony came to be.
