Hiscox advanced after the insurer said first-half profit rose 44 per cent, driven by growth in gross written premiums.Hochschild Mining rallied after reporting was on track to achieve its 2013 production target and saying it was starting a cost cutting programme. Software and services supplier, Fidessa Group, on the other hand, slumped after the company said its first-half pre-tax profit fell to £20.5m, compared to £21.7m last year. British aero engineer Senior plunged after saying its margins would come under pressure as planemakers and governments seek to pay less for its components.FTSE 250 - RisersHiscox Ltd (HSX) 648.50p +6.22%Hochschild Mining (HOC) 179.00p +4.99%Homeserve (HSV) 277.40p +4.29%Ferrexpo (FXPO) 173.40p +2.91%Balfour Beatty (BBY) 250.60p +2.62%African Barrick Gold (ABG) 115.50p +2.58%Rank Group (RNK) 161.00p +2.55%BH Global Ltd. USD Shares (BHGU) 11.89 +2.41%888 Holdings (888) 159.70p +2.37%Alent (ALNT) 365.10p +2.21%FTSE 250 - FallersBumi (BUMI) 210.10p -8.21%Fidessa Group (FDSA) 1,959.00p -5.36%Senior (SNR) 258.90p -4.99%Keller Group (KLR) 1,095.00p -2.67%Bodycote (BOY) 598.50p -2.37%Salamander Energy (SMDR) 126.00p -2.33%Drax Group (DRX) 631.50p -2.17%Paragon Group Of Companies (PAG) 319.20p -1.75%F&C Asset Management (FCAM) 96.70p -1.68%Dialight (DIA) 1,117.00p -1.67%RD