Shares in Tate & Lyle sweetened after the food ingredients company more than doubled profits on sales that were boosted by higher corn prices.Shares in telecom equipment tester Spirent moved up towards a 12-month high as it reported trading since July has exceeded its expectations.JD Wetherspoon is among today's fallers. First quarter like-for-like sales at the pub chain increased 1.6% while total sales in the period rose 7.3%."Our sales, profit and cashflow continue to be resilient and the performance of our recently opened pubs remains encouraging," the group said in today's quarterly update.FTSE 250 - RisersKenmare Resources (KMR) 23.60p +12.38%Taylor Wimpey (TW.) 25.23p +9.27%Tate & Lyle (TATE) 527.50p +7.61%Barratt Developments (BDEV) 83.35p +7.34%Persimmon (PSN) 359.00p +6.69%Devro (DVO) 234.30p +6.50%Spirent Communications (SPT) 154.20p +6.27%Ferrexpo (FXPO) 353.40p +5.52%Senior (SNR) 142.10p +5.26%Yell Group (YELL) 15.07p +5.02%FTSE 250 - FallersCable & Wireless Communications (CWC) 48.04p -11.12%Charter International (CHTR) 680.50p -6.46%Sports Direct International (SPD) 137.50p -2.20%Dairy Crest Group (DCG) 348.90p -2.16%Cable & Wireless Worldwide (CW.) 69.80p -2.10%Logica (LOG) 126.90p -1.63%JD Wetherspoon (JDW) 408.30p -1.61%Enterprise Inns (ETI) 117.40p -1.10%QinetiQ Group (QQ.) 104.90p -1.04%Melrose (MRO) 293.20p -1.01%