Lifted by top tier counterpart Next, retailers were today putting in a strong performance, with gains seen by Dixons, Home Retail, as well as Debenhams as it recovered from its profit warning issued earlier this week. Mobile satellite communications services company Inmarsat inched higher on the news it has completed the acquisition of Global Wireless after receiving regulatory approvals. The Florida-based provider of maritime communications services to the shipping market was purchased to $45m.As on the top tier, miners were putting in a mixed performance as investors weighed up poor data from China with rising gold and silver prices. Kazakhmys was hit by a downgrade from Investec. United Arab Emirates healthcare provider NMC Health declined despite the fact it said its results for 2013 were expected to be in line with expectations, with growth seen in both its healthcare and distribution divisions throughout the 12-month period. The group's net debt position, capital expenditure and operational cash flow were all also anticipated to be in line with management expectations.FTSE 250 - RisersDixons Retail (DXNS) 49.84p +4.86%Home Retail Group (HOME) 199.50p +4.29%BTG (BTG) 590.00p +4.06%RPS Group (RPS) 347.10p +3.98%Debenhams (DEB) 78.05p +3.86%Telecity Group (TCY) 763.50p +3.74%African Barrick Gold (ABG) 204.30p +3.44%Renishaw (RSW) 2,074.00p +3.24%FirstGroup (FGP) 129.20p +2.70%Devro (DVO) 297.50p +2.66%FTSE 250 - FallersKenmare Resources (KMR) 20.10p -5.01%Kazakhmys (KAZ) 209.70p -2.96%PayPoint (PAY) 1,000.00p -2.44%Synthomer (SYNT) 257.70p -2.42%NMC Health (NMC) 438.10p -2.41%Perform Group (PER) 218.80p -2.10%Imagination Technologies Group (IMG) 186.60p -2.05%Lonmin (LMI) 308.00p -1.91%Laird (LRD) 273.40p -1.55%Vedanta Resources (VED) 907.50p -1.41%NR