Intra-day, Barclays downgraded CIENA (NASDAQ: CIEN) from Overweight to Underweight with a price target of $11.00 which following Q4 results and Q1 guidance.

For an analyst ratings summary and ratings history on CIENA click here. For more ratings news on CIENA click here.

Shares of CIENA closed at $15.57 yesterday, with a 52 week range of $10.30-$18.39.

Analyst PT Change Downgrades

Despite Weak Numbers, Ciena Corp. (CIEN) Stock Holds Ground, Concerns RemainDecember 14, 2012 11:51 AM Jefferies Views Ciena Corp (CIEN) Valuation as FairDecember 14, 2012 7:55 AM BMO Capital Downgrades CIENA (CIEN) to Market PerformDecember 14, 2012 6:59 AM Ciena Corp. (CIEN) Posts Q4 Loss of 7c/Share; Guides Q1 SalesDecember 13, 2012 7:01 AM