Dixons Retail was a strong riser after Cantor Fitzgerald reiterated its 'buy' rating on the stock. Supergroup climbed after Canaccord Genuity gave the group's new women's range an excellent write-up, describing it as potentially 'transformational'. Asset manager Ashmore Group has continued to rise one day after posting a 9.4 per cent rise in assets under management (AuM) in the third quarter. This morning saw Citigroup up its target price from 355p to 410p, keeping a neutral rating, while Jefferies raised its target price from 435p to 490p and maintained a buy recommendation.Ferrexpo shares were hit by Deutsche Bank's decision to cut its target price on the industrial metals stock from 370p to 365p. FTSE 250 - RisersDixons Retail (DXNS) 34.79p +4.79%Supergroup (SGP) 694.50p +2.89%Persimmon (PSN) 1,129.00p +2.82%Fenner (FENR) 390.20p +2.71%Victrex (VCT) 1,628.00p +2.65%Ashmore Group (ASHM) 411.30p +2.57%Big Yellow Group (BYG) 378.30p +2.52%Home Retail Group (HOME) 158.80p +2.32%United Drug (UDG) 297.30p +2.31%Bank of Georgia Holdings (BGEO) 1,630.00p +2.26%FTSE 250 - FallersFerrexpo (FXPO) 182.10p -5.75%Menzies(John) (MNZS) 705.50p -3.82%Hochschild Mining (HOC) 267.80p -3.50%Salamander Energy (SMDR) 198.80p -3.31%Kenmare Resources (KMR) 29.42p -3.22%Anite (AIE) 118.30p -3.03%Morgan Advance Materials (MGAM) 273.10p -3.02%Centamin (DI) (CEY) 44.11p -2.76%Lonmin (LMI) 283.00p -2.75%Petropavlovsk (POG) 191.70p -2.74%NR