Shares have nosedived on the guidance after trading higher earlier today in response to the telecom equipment vendor's Q3 beat.
Several other telecom equipment firms are also seeing sizable declines on a down day for tech, as are some component/chip suppliers. CIEN -4.3%. JDSU -3.9%. FNSR -4.5%. JNPR -2.8%. AMCC -3.8%. DRWI -4.7%. RVBD -3.3%.