Up initially following its all-stock acquisition of Opnext (OPXT +47.8%), Oclaro (OCLR -7.1%) is now lower. Concerns about the deal's premium, and perhaps the potential for share loss as customers strive to keep a diverse stable of suppliers, could be having an impact. That, in turn, has brought Opnext shares down to $1.67, well below the $1.96 price implied by yesterday's close. Rivals are trading higher: FNSR +3.4%. JDSU +2.2%. NPTN +1.1%.