Chip designer ARM is higher due to bid rumours. Oracle says that it is interested in buying chip companies and ARM is a potential target, although US firm AMD is probably more likely. Miners are the worst performers headed by Antofagasta, Kazakhmys, and Anglo American after a downbeat note from UBS.The Swiss broker cut Antofagasta to 'sell' from 'neutral' because it believes the time is right to take profits. UBS has a cautious near-term view on copper prices. Anglo drops to 'neutral' from 'buy'.FTSE 100 - RisersBurberry Group (BRBY) 996.50p +5.39%ARM Holdings (ARM) 410.20p +4.96%Hammerson (HMSO) 405.70p +4.27%Invensys (ISYS) 293.60p +3.56%BT Group (BT.A) 143.80p +3.38%Schroders (SDR) 1,439.00p +3.08%BAE Systems (BA.) 347.00p +2.94%Tullow Oil (TLW) 1,302.00p +2.92%BG Group (BG.) 1,168.00p +2.73%Cairn Energy (CNE) 459.20p +2.64%FTSE 100 - FallersAntofagasta (ANTO) 1,188.00p -1.90%Aggreko (AGK) 1,524.00p -1.36%Admiral Group (ADM) 1,627.00p -0.97%National Grid (NG.) 545.00p -0.64%Kazakhmys (KAZ) 1,419.00p -0.63%United Utilities Group (UU.) 569.50p -0.61%African Barrick Gold (ABG) 597.00p -0.50%Randgold Resources (RRS) 6,530.00p -0.46%Anglo American (AAL) 2,540.50p -0.39%Vodafone Group (VOD) 161.20p -0.37%