Chipmaker Imagination Technologies is higher on the day after interim revenue rose 16% to £44m.Adjusted pre-tax profit surged to £10.1m as chip unit volumes doubled and licensing revenues increased. Imagination is buying Caustic Graphics for $27m, which will enable it to bring 3D graphics to mobile phones.Oxford Biomedica continues to fall after yesterday's £20m fundraising at 5p a share. The shares have fallen by more than one-fifth in the past two days. The gene-based therapies developer is offering existing shareholders the opportunity to subscribe for two new shares for every nine they hold at 5p a share. FTSE TechMARK - RisersImagination Technologies Group (IMG) 382.20p +6.31%Electronic Data Processing (EDP) 47.50p +3.26%Axis-Shield (ASD) 273.00p +3.02%COLT Group SA (COLT) 130.30p +2.92%Alterian (ALN) 189.25p +2.85%RM (RM.) 154.00p +2.67%QinetiQ Group (QQ.) 131.50p +2.65%Gresham Computing (GHT) 25.50p +2.00%Domino Printing Sciences (DNO) 574.50p +1.95%Oxford Instruments (OXIG) 700.00p +1.89%FTSE TechMARK - FallersOxford Biomedica (OXB) 5.98p -9.89%Antisoma (ASM) 5.75p -6.50%Kofax (KFX) 275.00p -3.51%CSR (CSR) 322.50p -2.27%Optos (OPTS) 156.00p -1.89%DRS Data & Research Services (DRS) 20.25p -1.22%Sinclair Pharma (SPH) 41.00p -1.20%E2V Technologies (E2V) 92.00p -0.81%