NEW YORK ( TheStreet) -- Shares of Antares Pharma (AMEX: AIS) were gapping down Thursday morning with an open price 22.8% lower than Wednesday's closing price. The stock closed at $2.41 Wednesday and opened today's trading at $1.86. The average volume for Antares has been 1.2 million shares per day over the past 30 days. Antares has a market cap of $271.2 million and is part of the health care sector and health services industry. Shares are up 54.1% year to date as of the close of trading on Wednesday. Antares Pharma, Inc., a pharmaceutical company, focuses on self-injection pharmaceutical products and technologies, and topical gel-based products. TheStreet Ratings rates Antares as a sell. The area that we feel has been the company's primary weakness has been its disappointing return on equity. You can view the full Antares 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.