Melco Crown Entertainment Limited (NASDAQ:

) shares jumped 6.15% to create a new 52-week high of $16.06. Macau posted a 48.4% surge in July gambling revenue. National American University Holdings Inc (NASDAQ: NAUH) shares gained 2.83% to touch a new 52-week high of $10.54. NAUH is scheduled to report its FQ4 results on August 4. PAETEC Holding Corp (NASDAQ:

) shares rose 21.49% to create a new 52-week high of $5.37. Windstream announced its plans to acquire Paetec Holding for around $891 million in stock. MarketAxess Holdings Inc (NASDAQ:

) shares gained 2.37% to create a new 52-week high of $26.75. MKTX reported upbeat Q2 earnings.