NEW YORK ( TheStreet) -- Shares of SINA Corporation (Nasdaq: SINA) were gapping up Wednesday morning with an open price 11.1% higher than Tuesday's closing price. The stock closed at $51.68 Tuesday and opened today's trading at $57.44. The average volume for SINA has been 4.6 million shares per day over the past 30 days. SINA has a market cap of $3.46 billion and is part of the technology sector and internet industry. Shares are down 0.6% year to date as of the close of trading on Tuesday. SINA Corporation provides online media and mobile value-added services (MVAS) in the People's Republic of China. It provides advertising, non-advertising, and free services through SINA.com, Weibo.com, and SINA Mobile. TheStreet Ratings rates SINA as a hold. The company's strengths can be seen in multiple areas, such as its increase in net income, robust revenue growth and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including disappointing return on equity and a generally disappointing performance in the stock itself. You can view the full SINA Ratings Report. Get more investment ideas from our investment research center.