NEW YORK ( TheStreet) -- Shares of Zoll Medical Corporation (Nasdaq: ZOLL) have taken a tremendous swing upward. The stock is trading at $92.95 as of 9:30 a.m. ET, 23.8% above Friday's closing price of $75.10. Volume is at 972,021, 2.9 times the daily average of 336,400. Zoll Medical has a market cap of $1.49 billion and is part of the health care sector and health services industry. Shares are up 18.9% year to date as of the close of trading on Friday. ZOLL Medical Corporation develops, manufactures, and markets resuscitation devices, related data management and software solutions, and temperature management technology worldwide. The company has a P/E ratio of 53.8, below the average health services industry P/E ratio of 68.5 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Zoll Medical as a buy. The company's strengths can be seen in multiple areas, such as its robust 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 Zoll Medical Ratings Report. See our top % gaining stocks list for other stocks that are soaring today, or get investment ideas from our investment research center. Interested in other stocks that are soaring? Get free SMS text alerts sent to you when the action happens by texting SOAR to 95370 or select from multiple alert options.