Public services outsourcing company Serco Group led the FTSE 100 race on Friday after saying it expects to report strong revenue growth in its full-year results. Schroders edged higher as the asset manager was upgraded by analysts at BNP Paribas to an 'outperform' rating in a research report on Friday.Lloyds Banking Group surged as Merrill Lynch reiterated its 'buy' rating on the stock and raised its target price to 80p from 70p, saying it believes the bank is closer to privatisation. In contrast, Fresnillo slumped after commodity prices, including silver and gold, dipped this week. Eurasian Natural Resources Corp. retreated following reports the independent board committee maintains a take-over offer from the founders of the group "materially undervalues" the company.As well, analysts at UBS downgraded the stock to neutral (from buy) and their price target to 230p (from 285p) to reflect the now lower value of the consortium's take-over bid. Engineering company Weir Group slumped after a topping the FTSE on Thursday.FTSE 100 - RisersSerco Group (SRP) 626.50p +4.33%Schroders (SDR) 2,247.00p +4.22%Resolution Ltd. (RSL) 286.90p +2.39%Lloyds Banking Group (LLOY) 64.17p +2.08%Associated British Foods (ABF) 1,748.00p +1.81%Pearson (PSON) 1,173.00p +1.65%Croda International (CRDA) 2,478.00p +1.52%GKN (GKN) 306.70p +1.32%Hammerson (HMSO) 485.10p +1.32%Melrose Industries (MRO) 251.60p +1.25%FTSE 100 - FallersFresnillo (FRES) 847.00p -3.97%Eurasian Natural Resources Corp. (ENRC) 206.30p -2.60%Weir Group (WEIR) 2,157.00p -2.04%BAE Systems (BA.) 384.00p -1.84%G4S (GFS) 230.90p -1.62%Antofagasta (ANTO) 804.50p -1.47%Carnival (CCL) 2,284.00p -1.17%RSA Insurance Group (RSA) 118.80p -1.16%TUI Travel (TT.) 357.10p -1.14%Compass Group (CPG) 843.00p -1.11%RD