NEW YORK ( TheStreet) -- Shares of AEterna Zentaris (Nasdaq: AEZS) were gapping down Tuesday morning with an open price 11.2% lower than Monday's closing price. The stock closed at $2.15 Monday and opened today's trading at $1.91. The average volume for AEterna Zentaris has been 1.1 million shares per day over the past 30 days. AEterna Zentaris has a market cap of $162.5 million and is part of the health care sector and drugs industry. Shares are up 39.6% year to date as of the close of trading on Monday. Aeterna Zentaris Inc. operates as a late-stage drug development company specialized in oncology and endocrine therapy. TheStreet Ratings rates AEterna Zentaris as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, weak operating cash flow and poor profit margins. You can view the full AEterna Zentaris 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.