Aquarius Platinum is the best performer as prices for the precious metal climbed to 15-month highs.Things are going swimmingly for Brewin Dolphin too after the stockbroker and fund manager saw profits slide in the year to September 27, but said current trading is satisfactory, leaving it confident for the future. Pub operator Mitchells & Butlers, which yesterday axed a director and appointed its senior independent director as the new chairman, is also higher.Elsewhere in the world of drinks, AG Barr, the maker of Irn-Bru, which yesterday warned that economic conditions continue to be challenging, has lost a bit of fozz.Business publisher Informa, whose titles include the shipping newspaper Lloyd's List, is lower after yesterday scrapping merger talks with German publisher Springer.FTSE 250 - RisersAquarius Platinum Ltd. (AQP) 380.90p +4.50%Jardine Lloyd Thompson Group (JLT) 442.30p +3.03%GKN (GKN) 113.50p +2.99%Brewin Dolphin (BRW) 170.10p +2.66%Mitchells & Butlers (MAB) 268.40p +2.60%Eaga (EAGA) 134.30p +2.52%Spectris (SXS) 679.00p +2.34%BBA Aviation (BBA) 160.40p +1.91%Charter International (CHTR) 744.50p +1.71%Premier Farnell (PFL) 160.20p +1.65%FTSE 250 - FallersPayPoint (PAY) 437.00p -3.96%F&C Commercial Property Trust (FCPT) 85.00p -3.41%AG Barr (BAG) 865.50p -3.40%Melrose Resources (MRS) 329.00p -3.24%Punch Taverns (PUB) 78.05p -3.16%Grainger (GRI) 129.00p -3.08%Talvivaara Mining Company (TALV) 398.40p -3.07%Informa (INF) 298.20p -2.68%St. Modwen Properties (SMP) 212.90p -2.65%Ferrexpo (FXPO) 205.00p -2.38%