Lumentum is trading 6.37% down at $861.00 amid broad technology and semiconductor selling. - It is down from its October 29 close of $919.53; no new Lumentum-specific announcement explaining the overnight decline surfaced in the search. - Reported Marvell acquisition talks remained unconfirmed and had previously supported the shares. - Reuters said selling spread across tech and semiconductor stocks after Intel fell sharply on weak fourth-quarter guidance and Amazon’s results renewed concerns about AI spending costs.