Warren Buffett’s Berkshire Hathaway has recently been selling down some of its long-held stake in Bank of America You might consider buying. Over the past month, Bank of America has underperformed the KBW Nasdaq Bank Index, down about 5% versus a roughly 1.5% drop for the index. What is good for Berkshire over a decade-plus time horizon isn’t necessarily the same as what might work for other investors in the quarters ahead.