Investors in infrastructure specialist Balfour Beatty applauded its agreement with the trustees of the company's pension fund to tackle the company's £375m pension fund deficit.Retail-related stocks are also in demand, with baby products group Mothercare, grocery delivery firm Ocado and fashion group Supergroup among the top risers.Buy-to-let mortgage lender Paragon enjoyed good gains earlier this week when it reported a sharp increase in full-year profit on strong rental demand, but the shares are lower today.FTSE 250 - RisersTelecity Group (TCY) 472.60p +6.44%Mothercare (MTC) 566.50p +3.94%Devro (DVO) 270.10p +3.09%Bellway (BWY) 541.00p +3.05%Melrose (MRO) 298.30p +2.86%Cable & Wireless Worldwide (CW.) 63.85p +2.65%Balfour Beatty (BBY) 280.20p +2.64%Ocado Group (OCDO) 148.60p +2.48%Cable & Wireless Communications (CWC) 45.99p +2.43%Supergroup (SGP) 1,530.00p +2.34%FTSE 250 - FallersImagination Technologies Group (IMG) 331.00p -3.50%Paragon Group Of Companies (PAG) 162.50p -3.45%Phoenix Group Holdings (DI) (PHNX) 638.50p -2.96%Fidessa Group (FDSA) 1,460.00p -2.86%Unite Group (UTG) 191.70p -2.69%BH Global Ltd. USD Shares (BHGU) 11 -2.65%Elementis (ELM) 115.80p -2.61%Grainger (GRI) 90.80p -2.21%International Personal Finance (IPF) 303.30p -2.16%Hargreaves Lansdown (HL.) 490.90p -2.11%