Why Is Ciena Corporation ( $CIEN ) Stock Up +4.42% Today? (Find out why any stock moved today on Tickeron.) Ciena Corporation (CIEN) shares rose +4.42%, climbing roughly $14.13 to about $333.77 versus a prior close of $319.64. The move was driven primarily by an optics and photonics sector rebound, as buyers returned to networking names hit hardest in Monday's selloff. $LITE $VIAV $AAOI $NOK $LTRX