Morning Market Movers

PokerTek (NASDAQ: PTEK) shares advanced 45.08% to $1.77 after the company and Carnival Corporation & plc entered into a 5-year contract. SemiLEDs (NASDAQ: LEDS) surged 13.28% to $1.45. SemiLEDs' trailing-twelve-month revenue is $28.78 million. MPG Office Trust (NYSE: MPG) climbed 10.36% to $2.77. MPG Office Trust's trailing-twelve-month profit margin is 167.15%. Mexco Energy (AMEX: MXC) surged 9.54% to $6.2325. Mexco Energy shares have dropped 30.44% over the past 52 weeks, while the S&P 500 index has gained 9.85% in the same period.