NEW YORK ( TheStreet) -- Shares of OncoGenex Pharmaceuticals (Nasdaq: OGXI) were gapping down Friday morning with an open price 19.7% lower than Thursday's closing price. The stock closed at $17.43 Thursday and opened today's trading at $13.99. The average volume for OncoGenex has been 40,700 shares per day over the past 30 days. OncoGenex has a market cap of $133.8 million and is part of the health care sector and drugs industry. Shares are up 48.5% year to date as of the close of trading on Thursday. OncoGenex Pharmaceuticals, Inc., a biopharmaceutical company, engages in the development and commercialization of new cancer therapies that address treatment resistance in cancer patients. TheStreet Ratings rates OncoGenex as a sell. Among the areas we feel are negative, one of the most important has been weak operating cash flow. You can view the full OncoGenex 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.