Exhibitions and conferences firm ITE Group benefited from the first time contributions from new events and a softer comparator last year to boost revenues by nearly 43% in the third quarter. However, shares of the media-related company fell the most on the FTSE 250 index.Not far behind was The Rank Group, which gave up most of yesterday's gains. Shares of the company slipped 3.25%, while it had added 3.5% on Monday. Bwin.party Digital Entertainment captured the position of the top riser on the index after the online gaming company said it had launch of a number of new branded online gaming services in Italy.Meanwhile, IG Group's full year results have come in a shade ahead of expectations, with the spread-betting company continuing to bag new clients in spite of tough economic conditions. FTSE 250 - RisersBwin.party Digital Entertainment (BPTY) 139.70p +5.59%IG Group Holdings (IGG) 432.20p +5.06%Henderson Group (HGG) 155.90p +4.56%Debenhams (DEB) 66.45p +4.15%Petropavlovsk (POG) 829.50p +3.49%Regus (RGU) 104.40p +3.37%Aberdeen Asset Management (ADN) 226.60p +3.28%Domino's Pizza UK & IRL (DOM) 448.40p +2.94%London Stock Exchange Group (LSE) 991.00p +2.85%Elementis (ELM) 182.00p +2.82%FTSE 250 - FallersITE Group (ITE) 226.40p -3.25%Rank Group (RNK) 149.30p -2.86%St. Modwen Properties (SMP) 174.30p -2.57%Morgan Crucible Co (MGCR) 327.60p -2.47%Daejan Holdings (DJAN) 2,900.00p -1.83%Cable & Wireless Worldwide (CW.) 44.19p -1.80%Kenmare Resources (KMR) 52.30p -1.78%Telecom Plus (TEP) 664.00p -1.63%Exillon Energy (EXI) 423.40p -1.56%SThree (STHR) 384.00p -1.54%