Bank of America (BAC) announced an additional $800 million stock buyback. The authorization is on top of the $4.0 billion approved last year. The amount isn't large in comparison to the market cap of nearly $140 billion, but the move is a big signal that the market is wrong about the large bank. The stock trades at $13.75 with book value at $22.54. Even tangible book value is up at $15.62. Buy the stock alongside the company all day at this price.