Pharmasset Inc ( VRUS) pushed the Drugs industry lower today making it today's featured Drugs loser. The industry as a whole closed the day up 3.6%. By the end of trading, Pharmasset Inc fell $1.44 (-1.1%) to $130.99 on heavy volume. Throughout the day, 6.8 million shares of Pharmasset Inc exchanged hands as compared to its average daily volume of 1.9 million shares. The stock ranged in price between $130.40-$132.50 after having opened the day at $132.50 as compared to the previous trading day's close of $132.43. Other company's within the Drugs industry that declined today were: Poniard Pharmaceuticals Inc ( PARDD), down 14.4%, Horizon Pharma Inc ( HZNP), down 12.7%, Marina Biotech Inc ( MRNA), down 9.1%, and AspenBio Pharma Inc ( APPY), down 8.1%. Pharmasset, Inc., a clinical-stage pharmaceutical company, engages in discovering, developing, and commercializing novel drugs to treat viral infections. Pharmasset Inc has a market cap of $10.09 billion and is part of the health care sector. Shares are up 508% year to date as of the close of trading on Tuesday. TheStreet Ratings rates Pharmasset as a sell. The company's weaknesses can be seen in multiple areas, such as its feeble growth in its earnings per share, weak operating cash flow and deteriorating net income.