Tech ratings changes: Corning, Symantec, TE Connectivity, Imperva

|About: Corning Inc. (GLW)|By:, SA News Editor

Corning (GLW -1.4%) has been cut to Neutral by UBS.

Symantec (SYMC -1.3%) has been cut to Equal Weight by Barclays.

TE Connectivity (TEL +1.3%) has been upgraded to Buy by BofA/Merrill.

Imperva (IMPV +1.6%) has received a contrarian upgrade to Buy from Sterne Agee a day after falling 44% due to its Q1 warning.

Demandware (DWRE +0.9%) has been upgraded to Outperform by BMO.

Ellie Mae (ELLI -5%) has been cut to Market Perform by FBR.