Networking/telecom hardware vendors and some of their suppliers are naturally the biggest decliners. Many of them have run up strongly this year on hopes of gradually improving carrier capex and enterprise IT spending. ALU -3.3% AH. JNPR -2.4%. ARUN -1.4%. FFIV -2%. ARRS -2.4%. RVBD -3.2%. JDSU -1.6%. FNSR -2.8%. CIEN -2.2%. CAVM -2%.