Leading the way north for the FTSE 250 index is struggling food manufacturer Premier Foods, which has been given a bit of breathing space by its bankers, who have agreed to defer the company's end-of-year loan covenant tests by three months.The company, which a month ago issued a profits-warning and which has seen its share price dive by two-fifths since, said the agreement with its bankers forms part of the company's discussions about longer term refinancing of the group's debt and confirms ongoing bank support for the business. Meanwhile, Rentokil, the pest control and cleaning services company, was heading lower having seen its profits drop in the third quarter as its City Link delivery business continues to drag the group down. FTSE 250 - RisersPremier Foods (PFD) 3.70p +9.96%Supergroup (SGP) 632.50p +5.50%London Stock Exchange Group (LSE) 899.50p +3.04%Betfair Group (BET) 791.50p +2.86%F&C Asset Management (FCAM) 70.00p +2.41%QinetiQ Group (QQ.) 122.60p +2.17%Talvivaara Mining Company (TALV) 231.80p +2.16%Lancashire Holdings (LRE) 755.50p +2.09%Intermediate Capital Group (ICP) 235.60p +2.04%Pace (PIC) 67.55p +2.04%FTSE 250 - FallersAfren (AFR) 75.75p -7.51%Homeserve (HSV) 298.90p -7.29%Phoenix Group Holdings (DI) (PHNX) 486.90p -5.82%SThree (STHR) 237.80p -5.75%New World Resources A Shares (NWR) 487.20p -5.03%Rentokil Initial (RTO) 66.30p -3.84%Carillion (CLLN) 319.30p -3.74%Cape (CIU) 458.60p -3.66%Invensys (ISYS) 215.10p -3.54%Carpetright (CPR) 450.00p -3.14%NR