NEW YORK ( TheStreet) -- Shares of Healthspring (NYSE: HS) were gapping up Friday morning with an open price 10.9% higher than Thursday's closing price. The stock closed at $34.12 Thursday and opened today's trading at $37.84. The average volume for Healthspring has been 494,400 shares per day over the past 30 days. Healthspring has a market cap of $1.9 billion and is part of the health care sector and health services industry. HealthSpring, Inc., through its subsidiaries, operates as a managed care organization in the United States. It focuses primarily on Medicare, the federal government sponsored health insurance program for the U. S. The company has a P/E ratio of 10.2, below the average health services industry P/E ratio of 10.4 and below the S&P 500 P/E ratio of 23.4. TheStreet Ratings rates Healthspring 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, solid stock price performance, impressive record of earnings per share growth and compelling growth in net income. We feel these strengths outweigh the fact that the company shows low profit margins. You can view the full Healthspring Ratings Report. Get more investment ideas from our investment research center.