The FTSE 250 index was in the positive territory for the third consecutive day. The high profile merger of the London Stock Exchange and Canadian bourse TMX - touted as the much needed trans-Atlantic transaction by the LSE - fell through after LSE's shareholders failed to support the deal. The London Stock Exchange, which has now become a possible takeover target, gained nearly 8% as investors were overjoyed at the outcome of the transaction. On the company earnings front, work wear rental group Berendsen provided an upbeat forecast for the first half of the year, making it one of the top gainers on the index. Berendsen said Holland is seeing growth and margin improvement, while the benefits of restructuring has begun to appear in Germany; Sweden is performing strongly, while Denmark is showing signs of improvement. The UK textile division saw modest revenue growth.On the downside, the heavily indebted food manufacturer Premier Foods painted a gloomy picture of its future profits. It company expects to report trading profit of between £65m and £70m, compared with £94m last year. Shares of Premier Foods, which owns brands like Hovis, Bisto and Branston, sank more than 22%. FTSE 250 - RisersTalvivaara Mining Company (TALV) 468.80p +7.79%Berendsen (BRSN) 542.00p +7.22%London Stock Exchange Group (LSE) 1,013.00p +5.96%International Personal Finance (IPF) 362.40p +5.50%New World Resources A Shares (NWR) 917.00p +5.40%Northgate (NTG) 326.00p +5.23%SThree (STHR) 395.70p +5.02%St James's Place (STJ) 339.60p +4.81%Keller Group (KLR) 460.30p +4.61%Rathbone Brothers (RAT) 1,129.00p +4.54%FTSE 250 - FallersPremier Foods (PFD) 19.69p -19.57%Greene King (GNK) 489.40p -5.52%Cable & Wireless Worldwide (CW.) 46.23p -2.94%AZ Electronic Materials SA (WI) (AZEM) 308.70p -1.94%Betfair Group (BET) 757.00p -1.88%Kofax (KFX) 445.00p -1.55%Gem Diamonds Ltd. (DI) (GEMD) 226.80p -1.52%Brown (N.) Group (BWNG) 263.20p -1.42%Daejan Holdings (DJAN) 2,722.00p -1.41%Halfords Group (HFD) 372.30p -1.38%