Look out below: Stocks that are down 40% this year By: CNBC.com News October 13, 2014 at 11:49 AM EDT Stocks have taken a pounding, with small- and mid-cap indexes already in correction territory-but some shares are doing a lot worse than others. Read More >> Related Stocks: Groupon Cl A Pandora Media Inc Rite Aid Corp Zynga Inc Cl A