The group is trading sharply lower following disappointing guidance this morning from optical networking component provider Ciena (CIEN).

FORBES: Optical Stocks Slide On Ciena's Weak April Quarter Outlook

Shares of optical networking provider Oclaro are trading higher Wednesday afternoon after the company said Q4 revenues topped previous guidance.

FORBES: Oclaro Says Q4 Revs Topped Guidance Range; Shrs Jump