Shares of the largest U.S. banks have been on a tear over the past 15 months. However, yesterday, Bank of America (NYSE:BAC) and Citigroup (NYSE:C) shares took a beating, leaving many investors looking for answers and wondering if the rally has reached its peak. Is it time for investors to lock in gains and cash out?

In this video, Motley Fool banking analyst David Hanson reminds Fools to readdress their initial investment thesis to see if their investment stance has changed. 

David Hanson has no position in any stocks mentioned. The Motley Fool owns shares of Bank of America and Citigroup. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.