4. As of noon trading, GlaxoSmithKline ( GSK) is down $0.27 (-0.6%) to $48.25 on heavy volume Thus far, 2.5 million shares of GlaxoSmithKline exchanged hands as compared to its average daily volume of 2.4 million shares. The stock has ranged in price between $48.15-$48.48 after having opened the day at $48.46 as compared to the previous trading day's close of $48.52. GlaxoSmithKline plc, together with its subsidiaries, discovers, develops, manufactures, and markets pharmaceutical products, over-the-counter medicines, and health-related consumer products worldwide. GlaxoSmithKline has a market cap of $128.9 billion and is part of the health care sector. The company has a P/E ratio of 14.4, below the S&P 500 P/E ratio of 17.7. Shares are up 11.6% year to date as of the close of trading on Thursday. TheStreet Ratings rates GlaxoSmithKline as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, notable return on equity, expanding profit margins and increase in stock price during the past year. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full GlaxoSmithKline Ratings Report now. Exclusive Offer: Jim Cramer's 'go-to' small/mid-cap guru Bryan Ashenberg only buys stocks he thinks could return 50-100%. See his top picks for 14-days FREE.