GT Advanced Technologies (GTAT -6.2%) slides on a downgrade to Sector Perform from Pac Crest....

|About: GT Advanced Technologies, Inc. (GTATQ)|By:, SA News Editor

GT Advanced Technologies (GTAT -6.2%) slides on a downgrade to Sector Perform from Pac Crest. The LED/solar equipment maker rallied yesterday in response to its Q3 warning, after initially trading lower.