Sina (SINA -8.5%) is adding to last week's losses with another sharp move lower. In addition to...

|About: Sina Corporation (SINA)|By:, SA News Editor

Sina (SINA -8.5%) is adding to last week's losses with another sharp move lower. In addition to ongoing regulatory fears, shares could be affected by news of Tencent's (TCEHY.PK) rival microblogging service beating Sina's service to the punch in offering English-language support. SINA has now fallen 30% since its Sep. 14 close.