Shares in Talvivaara jumped after the Finnish metals group said it has reached an agreement to supply 1.25m tonnes of zinc to Belgium's Nyrstar.Pub groups are in demand with JD Wetherspoon and Marston's among the top 10 risers. Oil-related stocks are going well, with explorer and producer Heritage and specialist engineer to oil and gas firms Lamprell among the top 10 risers.FTSE 250 - RisersTalvivaara Mining Company (TALV) 384.50p +9.51%Domino Printing (DNO) 343.00p +4.45%Ashmore Group (ASHM) 240.30p +4.34%JD Wetherspoon (JDW) 464.30p +3.80%Heritage Oil (HOIL) 518.50p +3.08%Lamprell (LAM) 195.70p +3.00%Caledonia Investments (CLDN) 1,562.00p +2.83%Marston's (MARS) 85.90p +2.81%Moneysupermarket.com (MONY) 74.00p +2.78%Spirent Communications (SPT) 107.90p +2.76%FTSE 250 - FallersMelrose Resources (MRS) 307.00p -5.39%Tullett Prebon (TLPR) 300.40p -3.13%Close Brothers Group (CBG) 713.50p -1.86%F&C Asset Management (FCAM) 70.55p -1.67%BlueBay Asset Management (BBAY) 337.40p -1.60%COLT Telecom Group S.A. (COLT) 130.50p -1.58%Shanks Group (SKS) 118.40p -1.33%Euromoney Institutional Investor (ERM) 466.00p -1.27%Domino's Pizza UK & IRL (DOM) 311.00p -1.27%Melrose (MRO) 164.90p -1.20%