NEW YORK ( TheStreet) -- Shares of Stereotaxis (Nasdaq: STXS) were gapping down Tuesday morning with an open price 42.5% lower than Monday's closing price. The stock closed at $2.85 Monday and opened today's trading at $1.64. The average volume for Stereotaxis has been 300,000 shares per day over the past 30 days. Stereotaxis has a market cap of $153.3 million and is part of the health care sector and health services industry. Shares are down 25.6% year to date as of the close of trading on Monday. Stereotaxis, Inc. designs, manufactures, and markets cardiology instrument control systems for use in a hospital's interventional surgical suite or interventional lab for the treatment of arrhythmias and coronary artery diseases in the United States and internationally. TheStreet Ratings rates Stereotaxis as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income, generally weak debt management, weak operating cash flow and generally disappointing historical performance in the stock itself. You can view the full Stereotaxis 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.