Watch List: Weibo Corp (ADR) (NASDAQ:WB), Twitter Inc (NYSE:TWTR), Facebook Inc (NASDAQ:FB), SINA Corp (NASDAQ:SINA)

Weibo Corp (ADR) (NASDAQ:WB) the Chinese microblogging service owned by Sina Corp., surged 19 percent in its first day of trading after pricing its initial public offering at the low end of the marketed range. Weibo Corp (ADR) (NASDAQ:WB) shares after opening at $16.27 moved to $24.48 on last trade day and at the end of the day closed at $20.24.

Twitter Inc (NYSE:TWTR) successfully completed the acquisition of a privately held company called MoPub Inc. MoPub is an advertising exchange which is mobile focused. The acquisition was completed for about $350 million. Twitter Inc (NYSE:TWTR) shares advanced 1.33% in last trading session and ended the day on $45.01. TWTR return on equity ratio is recorded as -105.10% and its return on assets is -41.20%.

Facebook Inc has acquired a developer of online applications called Mobile Technologies. It has also successfully completed the acquisition of Onavo Inc. Other prized and strategic acquisitions of this year include Little Eye Software Labs Pvt Ltd. and Branch Media Inc. Facebook Inc (NASDAQ:FB) shares moved down -1.31% in last trading session and was closed at $58.94, while trading in range of $58.72-$60.58. Facebook Inc (NASDAQ:FB) year to date performance is 7.85%.

Stifel Nicolaus reiterated their buy rating on shares of SINA Corp (NASDAQ:SINA) in a research report released on Thursday morning, AnalystRatings.Net reports. Stifel Nicolaus currently has a $80.00 price objective on the stock, down from their previous price objective of $100.00. SINA Corp (NASDAQ:SINA) weekly performance is 6.34%. On last trading day company shares ended up $56.55. SINA Corp (NASDAQ:SINA) distance from 50-day simple moving average is -12.83%. Analysts mean target price for the company is $88.64.