Spectrum Pharmaceuticals, Carmike Cinemas Among Stocks Gapping Down Thursday

Here are stocks that gapped down today with opening prices significantly lower than the previous trading day's close:

• Spectrum Pharmaceuticals (NASDAQ:SPPI) opened at $10.79 after closing the previous trading session at $12.21, gapping down. Shares are down 10%, trading at a volume of 3.8 million. The stock has lost momentum over the last three months, losing $4.51 (-29.1%) from $15.50 on January 9, 2012. The stock is trading at 83.3% of its 50-day moving average and 87% of its 200-day moving average.

• With an opening price of $13, Carmike Cinemas (NASDAQ:CKEC) gapped down from its previous close of $14.53. While trading at a volume of 585,506, the stock price has fallen 8.7%.

• Ruby Tuesday (NYSE:RT) opened at $7.98 after closing the previous trading session at $8.88, gapping down. Shares are trading at a volume of 973,146 at a price decrease of 13.9%. The stock has been falling recently, and shares are down $1.46 (-16%) from a price of $9.10 on March 29, 2012. The stock has moved down across its 50-day moving average of $8.29 today.

• After closing the previous trading session at $1.87, Galena Biopharma (NASDAQ:GALE) gapped down with an opening price of $1.60. Shares have dropped 13.9%, trading at a volume of 4.4 million.