Morning Market Movers

LML Payment Systems LMLP shares advanced 81.82% to $3.40 at 9:50 am. Digital River DRIV announced its plans to buy LML Payment Systems for around $97.3 million. Longwei Petroleum Investment Holding Limited LPH surged 28.92% to $1.56. Longwei Petroleum reported that it will complete the purchase of the assets of Huajie Petroleum Co Ltd by the end of this month. Skystar Bio Pharmaceutical Company SKBI surged 23.68% to $1.88. Skystar Bio Pharmaceutical's trailing-twelve-month operating margin is 31.52%. Rambus RMBS climbed 21.91% to $6.01. Rambus shares have dropped 65.08% over the past 52 weeks, while the S&P 500 index has gained 25.57% in the same period.