Tech ratings changes: Seagate, ON Semi, Freescale, Montage

• Seagate (STX +3.3%) has been upgraded to Outperform by RBC.
• ON Semi (ONNN +1%) and Freescale (FSL +1.5%) have been started at Buy by Drexel Hamilton.
• Montage Technology (MONT +0.3%) has been cut to Market Perfrorm by Raymond James, and to Equalweight by Barclays, a day after posting a Q4 beat.
• Telecom New Zealand (NZTCY -0.5%) has been upgraded to Neutral by Citi.