Airline IAG, luxury brand Burberry and chip giant ARM are the best performing blue chips.Rio Tinto is edging higher after coming to an agreement with the government of Guinea, paving the way for work to begin on the Simandou iron ore project in the southern part of the country. Meanwhile, sector peers Randgold Resources, Vedanta Resources and Anglo American are in the red.Financial Times publisher and education group Pearson is wanted after acquiring Schoolnet, which provides tailored instruction for US school kids, for $230m.Energy provider Scottish and Southern Energy is among the risers after some kind words with Credit Suisse which said that the lead indicators for profitability are still not priced-in, and sees a risk of upgrades. ---bcFTSE 100 - RisersInternational Consolidated Airlines Group SA (IAG) 227.90p +3.73%Burberry Group (BRBY) 1,307.00p +2.83%ARM Holdings (ARM) 620.50p +2.56%Aggreko (AGK) 1,704.00p +2.28%Essar Energy (ESSR) 449.90p +2.25%Vodafone Group (VOD) 172.65p +2.13%Tesco (TSCO) 402.95p +1.94%Capital Shopping Centres Group (CSCG) 403.00p +1.87%BT Group (BT.A) 192.30p +1.75%Royal Dutch Shell 'B' (RDSB) 2,293.00p +1.73%FTSE 100 - FallersReckitt Benckiser Group (RB.) 3,241.00p -1.49%TUI Travel (TT.) 235.80p -1.30%HSBC Holdings (HSBA) 651.50p -1.23%Next (NXT) 2,212.00p -1.21%Cairn Energy (CNE) 449.70p -1.16%Randgold Resources Ltd. (RRS) 5,255.00p -0.94%Associated British Foods (ABF) 1,031.00p -0.87%Vedanta Resources (VED) 2,347.00p -0.80%Anglo American (AAL) 3,140.00p -0.70%John Wood Group (WG.) 701.50p -0.64%