A roundup of tech ratings changes

|By:, SA News Editor

Akamai (AKAM -2.1%) has been cut to Neutral by B. Riley.

China Unicom (CHU -0.7%) has been cut to Hold by BNP Paribas.

Esterline Technologies (ESL -1.8%) has been cut to Underperform by BofA/Merrill.

Orbcomm (ORBC +0.6%) has been started at Buy by Chardan Capital.