NEW YORK ( TheStreet) -- Shares of Theravance (Nasdaq: THRX) were gapping down Monday morning with an open price 31.7% lower than Friday's closing price. The stock closed at $20.20 Friday and opened today's trading at $13.79. The average volume for Theravance has been 349,400 shares per day over the past 30 days. Theravance has a market cap of $1.7 billion and is part of the health care sector and drugs industry. Shares are down 8.6% year to date as of the close of trading on Friday. Theravance, Inc., a biopharmaceutical company, engages in the discovery, development, and commercialization of small molecule medicines for various therapeutic areas, including respiratory disease, bacterial infections, and central nervous system (CNS)/pain. TheStreet Ratings rates Theravance as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, weak operating cash flow, generally disappointing historical performance in the stock itself and feeble growth in its earnings per share. You can view the full Theravance 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.