NEW YORK ( TheStreet) -- Shares of Allos Therapeutics (Nasdaq: ALTH) were gapping down Friday morning with an open price 15.1% lower than Thursday's closing price. The stock closed at $1.66 Thursday and opened today's trading at $1.41. The average volume for Allos has been 590,800 shares per day over the past 30 days. Allos has a market cap of $184.3 million and is part of the health care sector and drugs industry. Shares are up 16.9% year to date as of the close of trading on Thursday. Allos Therapeutics, Inc., a biopharmaceutical company, engages in the development and commercialization of anti-cancer therapeutics. TheStreet Ratings rates Allos as a sell. Among the areas we feel are negative, one of the most important has been a generally disappointing historical performance in the stock itself. You can view the full Allos Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping down? Get free SMS text alerts sent to you when the action happens by texting DOWN to 95370 or select from multiple alert options.