HP has lost $80 billion in value in the last two years. Yahoo has lost $42 billion, and RIM $78 billion. And before a quick rebound to $86 billion in market value, Bank of America shed a staggering $136 billion in the past six years.
But that's just part of the story.
Poor hiring decisions, clueless management moves, scandals, and crazy acquisitions are all reasons HP, RIM, Yahoo, and BofA are in the running for worst corporate governance of the year.