Security solutions group G4S was extending gains made earlier this week when it announced plans to sell assets to reduce its debt pile and issue new shares to help strengthen its balance sheet. G4S has gained by nearly 15 per cent over the last month alone and has now erased all of the losses experienced earlier in the year.JPMorgan Cazenove kept an 'overweight' rating on the stock saying that there could be upside to current forecasts on the back of the company's revenue growth potential and new business opportunities. Telecoms giant Vodafone was continuing to rise after yesterday's impressive surge following the confirmation that it is in talks about selling its 45% stake in Verizon Wireless to US partner Verizon. The sale could generate up to $130bn for the UK group, reports have suggested.Outsourcing giant Serco was rebounding after a heavy fall yesterday after confirming that it is under investigation because of a "misreporting of data" in connection with it prisoner escort contract with the Ministry of Justice. Shares dropped 11% the day before after it said it would forgo any past and future profits on the £285m contract.Burberry was near the top of the leaderboard on positive readacross from some better-than-expected interim earnings figures out from French luxury peer Hermes.Chip designer ARM Holdings edged higher after Deutsche Bank upgraded the chip designer to 'buy' and more than doubled its target price, saying that fears of competition from Intel have been overdone.Mining stocks were broadly out of favour today with Vedanta leading the fallers as metals prices declined.Anglo American was lower on reports that it could close or sell off mines at Anglo Platinum (Amplats) if the division doesn't see improving profits next year. Meanwhile, Rio Tinto was down on concerns over delays to its Simandou iron ore project in Guinea.FTSE 100 - RisersG4S (GFS) 258.20p +2.66%Vodafone Group (VOD) 207.85p +1.51%Serco Group (SRP) 545.50p +1.30%Burberry Group (BRBY) 1,549.00p +1.24%Antofagasta (ANTO) 854.50p +0.65%Babcock International Group (BAB) 1,142.00p +0.53%Land Securities Group (LAND) 892.50p +0.51%Hammerson (HMSO) 487.70p +0.47%British American Tobacco (BATS) 3,283.50p +0.38%Marks & Spencer Group (MKS) 478.50p +0.31%FTSE 100 - FallersVedanta Resources (VED) 1,162.00p -2.11%Petrofac Ltd. (PFC) 1,393.00p -2.11%Centrica (CNA) 384.50p -2.09%GKN (GKN) 329.10p -2.00%easyJet (EZJ) 1,234.00p -1.99%Aviva (AV.) 389.30p -1.91%WPP (WPP) 1,206.00p -1.71%United Utilities Group (UU.) 682.00p -1.59%InterContinental Hotels Group (IHG) 1,814.00p -1.57%International Consolidated Airlines Group SA (CDI) (IAG) 287.90p -1.54%BC