Best Buy (BBY)
Year-to-Date: Down 48 Percent
Looking at Best Buy's stock price in December, it's tough to believe that shares appeared poised to hit $30 in March. A few reasons have contributed to the decline, from a third-quarter loss and worsening cash flow, not to mention increased competition from Amazon.com. Best Buy's founder and its largest shareholder, Richard Schultze, reportedly sought to take the company public, but faces a financing hurdle, adding more uncertainty to the company's shares.
(Watch: Worst Trades of 2012: Best Buy)