Midday Losers; OpenTable Down Over 9%

Quicksilver Resources KWK -7.60% - hearing the company was downgraded to Neutral at UBS. Central European Distribution CEDC -6.47% on average volume. NovaGold Resources NG -7.37% on heavy volume. RealD RLD -6.45% on low volume. OpenTable OPEN -9.53% after Google acquired its competitor, Zagat.