Cost cutting measures helped Gem Diamonds move into profit in the year to December 31 even as revenues slumped on lower diamond prices, but the shares are looking a bit lacklustre.Wellstream, which designs and manufactures flexible risers and flowlines for the oil and gas industry, also slips, after it reported lower than expected profits in a tough year that saw activity in the oil and gas sector tail off.But merchant bank Close Brothers has jumped after it reported a 50% jump in half year profits thanks to a strong performance in its Banking and Securities divisions.FTSE 250 - RisersClose Brothers Group (CBG) 765.50p +7.06%Travis Perkins (TPK) 767.50p +3.65%Ashtead Group (AHT) 95.85p +3.45%Aberdeen Asset Management (ADN) 128.30p +2.97%Henderson Group (HGG) 142.50p +2.81%Ashmore Group (ASHM) 253.90p +2.67%DSG International (DSGI) 33.88p +2.54%Greggs (GRG) 434.90p +2.09%Berkeley Group Holdings (BKG) 806.00p +2.03%BBA Aviation (BBA) 192.40p +2.01%FTSE 250 - FallersMelrose Resources (MRS) 315.60p -4.22%JD Wetherspoon (JDW) 504.50p -4.00%Mcbride (MCB) 221.30p -3.28%Wellstream Holdings (WSM) 522.00p -2.43%DS Smith (SMDS) 132.30p -2.00%Computacenter (CCC) 315.00p -1.78%888 Holdings (888) 106.30p -1.76%Hiscox (HSX) 345.50p -1.76%St. Modwen Properties (SMP) 189.60p -1.71%Gem Diamonds (GEMD) 240.80p -1.71%