FTSE 250 movers: Chips down for Imagination

Imagination's update has failed to impress the market.The chip designer is building up its war chest to fund an acquisition spree, starting with HelloSoft, a US voice over internet protocol (VOIP) operator.Imagination is paying a maximum of $47m for Hellosoft, a company that has technology patents that are complementary to Imagination's. The final consideration is dependent on the performance of Hellosoft over the next three years.Similarly, SIG, a supplier of insulation and construction products, falls back even after it said it is confident of reaching full year profit expectations and posted a modest rise in second half sales.Engineer Morgan Crucible has motored ahead after saying profits this year are expected to be in "in the top half of analyst forecasts" after strong sales since the half year.FTSE 250 - RisersFenner (FENR) 286.40p +4.64%Centamin Egypt Ltd. (CEY) 179.40p +4.61%Morgan Crucible Co (MGCR) 232.20p +4.45%Ferrexpo (FXPO) 375.10p +3.91%Premier Foods (PFD) 18.08p +3.85%RIT Capital Partners (RCP) 1,169.00p +3.36%Redrow (RDW) 101.10p +2.80%WH Smith (SMWH) 466.30p +2.75%Daejan Holdings (DJAN) 2,413.00p +2.68%Mondi (MNDI) 505.00p +2.60%FTSE 250 - FallersYule Catto & Co (YULC) 238.90p -6.50%Imagination Technologies Group (IMG) 304.20p -6.40%SIG (SHI) 112.90p -4.32%John Wood Group (WG.) 467.70p -3.94%Heritage Oil (HOIL) 375.30p -3.60%Regus (RGU) 76.55p -3.59%Unite Group (UTG) 193.40p -3.30%Cable & Wireless Worldwide (CW.) 66.70p -3.19%Restaurant Group (RTN) 271.10p -3.18%Senior (SNR) 139.90p -2.98%