Tech ratings change roundup: Sina, Maxwell, Changyou, Harmonic

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

Sina (SINA -5%) has been cut to Hold by Jefferies. Shares fell yesterday thanks to a government report estimating Weibo users fell 9% in 2013.

Maxwell (MXWL +8.5%) has been upgraded to Overweight by Piper. Q4 results are due on Feb. 20.

Changyou (CYOU -1%) has been cut to Neutral by Credit Suisse.

Harmonic (HLIT -12.8%) has been cut to Underperform ahead of its Jan. 28 Q4 report.

Stamps.com (STMP +0.5%) has been started at Outperform by Northland.