A roundup of tech analyst ratings changes

|By:, SA News Editor

Palo Alto Networks (PANW +4.7%) has been upgraded to Market Perform by Oppenheimer following its FQ4 results and solid FQ1 guidance.

Fusion-io (FIO +4%) has been upgraded by Piper, as M&A speculation (I, II) continues to swirl in the wake of Western Digital/Virident.

Jabil (JBL +2.6%) has been upgraded to Strong Buy by Needham.

Calix (CALX -2.9%) has been cut to Sell by Goldman.

Analogic (ALOG +1.5%) has been started at Buy by Benchmark.

Konami (KNM +4.1%) has been started at Underperform by Jefferies.