Digital sports media firm Perform dropped sharply on Thursday after a pre-close trading update said that despite still expecting strong revenue growth this year, a change in revenue mix, together with additional rights and other investment, will impact the rate of earnings growth.Paper and plastic packaging company DS Smith jumped after seeing annual pre-tax profits soar 51% and revenue surge 86% following a "transformational year". Analysts at Investec said that the results were ahead of forecast on all metrics, highlighting the 36% increase in the dividend to 8.0p, "significantly more than we had expected (6.5p)".Greene King, the UK pub operator, also impressed with its record annual results, which showed a 6.6% increase in pre-tax profit to £162m in spite of tough weather conditions in its second half.Construction group Carillion rose strongly after scoring a "prestigious" £130m contract to design and build a luxury hotel in Abu Dhabi through its joint-venture business in the United Arab Emirates, Al Futtaim Carillion.High Street department store Debenhams may have missed estimates with a slowdown in like-for-like sales growth in its third quarter but shares rose after the firm lowered its operating cost guidance.FTSE 250 - Risers888 Holdings (888) 152.40p +7.17%Drax Group (DRX) 568.50p +6.46%Smith (DS) (SMDS) 253.10p +5.55%Ocado Group (OCDO) 282.50p +4.86%Debenhams (DEB) 94.85p +4.46%Carillion (CLLN) 272.80p +4.16%Britvic (BVIC) 491.50p +4.15%Telecity Group (TCY) 1,007.00p +3.81%Centamin (DI) (CEY) 31.59p +3.71%Greene King (GNK) 772.50p +3.55%FTSE 250 - FallersPerform Group (PER) 525.50p -9.71%Man Group (EMG) 81.05p -4.25%Hochschild Mining (HOC) 158.00p -4.13%Imagination Technologies Group (IMG) 286.70p -2.98%Evraz (EVR) 97.40p -2.79%Elementis (ELM) 221.90p -2.68%Petra Diamonds Ltd.(DI) (PDL) 112.00p -2.27%Polymetal International (POLY) 454.10p -2.13%AZ Electronic Materials SA (DI) (AZEM) 304.00p -2.03%Fenner (FENR) 309.00p -1.90%