Top 10 Biggest Stock Percentage Movers Today

Wall St. Watchdog reveals information about 10 stocks showing big percentage moves on our trading screens:

Big gainers:

1. EnerSys (NYSE:ENS): Up +18.45%. EnerSys manufactures, markets, and distributes industrial batteries. The Company also manufactures, markets, and distributes related products such as chargers, power equipment, and battery accessories. EnerSys provides related after-market and customer-support services for lead-acid industrial batteries. Get the most recent company news and stock data here >>
2. RSC Holdings Inc. (NYSE:RRR): Up +8.65%. RSC Holdings, Inc. rents equipment. The Company operates equipment rental locations in the United States and Canada. Get the most recent company news and stock data here >>
3. Cabot Oil & Gas Corporation (NYSE:COG): Up +7.95%. Cabot Oil & Gas Corporation is an independent oil and gas company that develops, exploits, and explores oil and gas properties located in North America. The Company holds interests Appalachian Basin, onshore Gulf Coast, including south and east Texas and north Louisiana, the Rocky Mountains and the Anadarko Basin as well as in the deep gas basin of Western Canada. Get the most recent company news and stock data here >>
4. Viacom, Inc. (NYSE:VIA.B): Up +7.92%. Get the most recent company news and stock data here >>
5. Fortinet, Inc. (NASDAQ:FTNT): Up +7.69%. Fortinet Inc. provides network security solutions. The Company offers network security appliances and related software, and subscription services. Fortinet systems integrate the industry’s broadest suite of security technologies, including firewall, VPN, antivirus, intrusion prevention (NYSE:IPS), Web filtering, antispam, and traffic shaping. Get the most recent company news and stock data here >>

Big losers:

1. Green Mountain Coffee Roasters Inc. (NASDA Q:GMCR): Down -39.99%. Green Mountain Coffee Roasters, Inc. roasts Arabica coffees and offers various coffee selections. The Company’s products include single-origin, estate, certified organic, Fair Trade, signature blends, and flavored coffees sold under the Green Mountain Coffee Roasters brand. Green Mountain serves offices, supermarkets, and convenience stores, and operates a direct mail business. Get the most recent company news and stock data here >>
2. Silver Standard Resources Inc. (NASDAQ:SSRI): Down -21.26%. Silver Standard Resources Inc. is a silver exploration company focused on acquiring and developing silver resources on a global basis. The Company has projects in Argentina, Peru, Mexico, Canada, Chile, the United States and Australia. Get the most recent company news and stock data here >>
3. Pegasystems Inc. (NASDAQ:PEGA): Down -20.63%. Pegasystems Inc. develops customer relationship management software. The software automates customer interactions across transaction-intensive enterprises. The Company provides its products to customers in the banking, mutual funds and securities, mortgage services, card services, insurance, healthcare management, and telecommunications industries. Get the most recent company news and stock data here >>
4. Melco Crown Entertainment Ltd (NASDAQ:MPEL): Down -13.21%. Melco Crown Entertainment. Ltd. develops, owns and operates casino gaming and entertainment resort facilities. Get the most recent company news and stock data here >>
5. PriceSmart, Inc. (NASDAQ:PSMT): Down -10.35%. PriceSmart, Inc. owns and manages international merchandising businesses. The Company licenses and owns membership stores using the trade name PriceSmart and PriceCostco. PriceSmart’s international market consists of Latin America and Asia. The Company also operates domestic merchandising programs, including its Auto Referral Program and its Travel Program. Get th! e most r ecent company news and stock data here >>