Morning Market Movers (XPRT, ARB, LULU, HELE)

LECG Corporation XPRT shares advanced 23.53% to $1.26 at 10:00 am. XPRT's shares have dipped 62.22% over the past 52 weeks, while the S&P 500 index has gained 12.07% in the same period. Arbitron Inc ARB shares surged 16.77% to $36.55. ARB projects its 2011 revenue to rise between 6% and 8% over the company's 2010 revenue. lululemon athletica inc LULU jumped 14.43% to $63.74. LULU reported better-than-expected Q3 results. Helen of Troy Ltd HELE climbed 10.41% to $25.99. HELE announced its plans to purchase Kaz Inc for $260 million in cash. Read more from Benzinga's Markets.