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.