NEW YORK ( TheStreet) -- Shares of Medtox Scientific (Nasdaq: MTOX) were gapping up Monday morning with an open price 35.2% higher than Friday's closing price. The stock closed at $19.70 Friday and opened today's trading at $26.63. The average volume for Medtox Scientific has been 31,900 shares per day over the past 30 days. Medtox Scientific has a market cap of $181.3 million and is part of the health care sector and health services industry. Shares are up 40.2% year to date as of the close of trading on Friday. MEDTOX Scientific, Inc., together with its subsidiaries, provides forensic and clinical laboratory services, and offers diagnostic devices. Its Laboratory Services segment offers drugs-of-abuse testing services. The company has a P/E ratio of 34.8, equal to the average health services industry P/E ratio and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Medtox Scientific as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, impressive record of earnings per share growth, compelling growth in net income and good cash flow from operations. Although no company is perfect, currently we do not see any significant weaknesses which are likely to detract from the generally positive outlook. You can view the full Medtox Scientific Ratings Report. Get more investment ideas from our investment research center.