Chip designer ARM is higher following yesterday's $1.4bn purchase of Infineon's wireless subsidiary by Intel. The Infineon business' chips use ARM architecture so Intel may have to push its rival's technology.Miners had a strong afternoon with Fresnillo and Randgold Resources among the highest risers on the day. Worries about the lack of bookings hit the share price of Intercontinental Hotels Group. BG Group is lower after selling 35% of its White Bear gas condensate project to KazMunaiGas Exploration. Another exploration well is planned for 2011. FTSE 100 - RisersARM Holdings (ARM) 366.80p +8.58%Fresnillo (FRES) 1,090.00p +3.22%Randgold Resources (RRS) 6,080.00p +2.62%Royal Bank of Scotland Group (RBS) 44.58p +2.48%Rio Tinto (RIO) 3,300.00p +2.37%Vodafone Group (VOD) 156.75p +2.05%Reckitt Benckiser Group (RB.) 3,251.00p +1.98%Anglo American (AAL) 2,340.00p +1.94%Amec (AMEC) 917.00p +1.89%BHP Billiton (BLT) 1,831.50p +1.86%FTSE 100 - FallersInterContinental Hotels Group (IHG) 982.00p -2.96%Serco Group (SRP) 582.00p -2.51%Intertek Group (ITRK) 1,665.00p -2.00%BG Group (BG.) 1,049.50p -1.59%Imperial Tobacco Group (IMT) 1,800.00p -1.59%Aggreko (AGK) 1,419.00p -1.25%Centrica (CNA) 325.30p -1.21%Inmarsat (ISAT) 667.50p -1.18%Eurasian Natural Resources (ENRC) 846.50p -1.17%G4S (GFS) 252.40p -1.10%