Filtronic is among today's main risers after the electronics group said trading in the second half of the year has been as expected with a better than breakeven result and operating cash neutrality. The group also announced that chief financial officer Stephen Mole will step down at the end of September. The process to appoint a successor is underway, it added. John Poulter meanwhile, will stand down as chairman at the AGM in September to be succeeded by Howard Ford who joined the board in December 2008. FTSE TechMARK - RisersInion (IIN) 0.70p +16.67%Oxford Biomedica (OXB) 12.25p +6.52%Filtronic (FTC) 32.25p +5.74%AEA Technology (AAT) 23.00p +4.55%KCOM Group (KCOM) 28.25p +3.67%E2V Technologies (E2V) 70.00p +2.94%Axis-Shield (ASD) 325.00p +2.36%Emblaze (BLZ) 37.00p +2.07%Phoenix IT Group (PNX) 200.00p +1.91%Kofax (KFX) 138.50p +1.84%FTSE TechMARK - FallersPhytopharm (PYM) 5.25p -4.55%Optos (OPTS) 70.00p -4.11%RM Group (RM.) 160.00p -3.03%ProStrakan (PSK) 90.00p -2.70%Skyepharma (SKP) 152.00p -2.56%Alphameric (ALM) 29.25p -2.50%NXT (NTX) 11.25p -2.17%Vernalis (VER) 77.00p -1.91%Puricore (PURI) 13.50p -1.82%Sepura (SEPU) 43.00p -1.71%