Miners were among the best performers on the Footsie with precious metals group Fresnillo rising strongly. The group this morning hailed a strong start to 2012 with gold production beating its own expectations and silver output being on target. BHP Billiton was wanted after iron ore production at its Western Australian operations still hit record levels in the nine months to the end of March, despite cyclone activity depressing third quarter production. Sector peers Rio Tinto, Anglo American and Antofagasta were also on the up. Meanwhile, a number of heavyweights on the index were providing a drag after going ex-dividend, including BAE Systems, Capita, Kazakhmys, Legal & General, Old Mutual, Petrofac, Resolution and Smith & Nephew. International distribution and outsourcing group Bunzl also fell despite saying trading in 2012 has been strong, with the group seeing solid top line growth and an improvement in the group operating margin.Another notable stock was supermarket firm Tesco which erased the morning's gains to trade slightly lower by the afternoon following its in-line full-year results. According to Merchant Securities, the stock is trading at a "justified" discount to sector peers Sainsbury and Morrison and is "fairly priced". The latter two stocks were putting in a solid performance today. FTSE 100 - RisersFresnillo (FRES) 1,627.00p +3.43%Weir Group (WEIR) 1,754.00p +2.99%Admiral Group (ADM) 1,222.00p +2.17%Severn Trent (SVT) 1,635.00p +1.81%Tullow Oil (TLW) 1,509.00p +1.75%Imperial Tobacco Group (IMT) 2,485.00p +1.55%BHP Billiton (BLT) 1,952.00p +1.32%ITV (ITV) 89.20p +1.25%Morrison (Wm) Supermarkets (MRW) 299.50p +1.15%Shire Plc (SHP) 2,024.00p +1.15%FTSE 100 - FallersResolution Ltd. (RSL) 225.70p -5.56%Man Group (EMG) 102.90p -4.28%Legal & General Group (LGEN) 119.00p -4.19%BAE Systems (BA.) 291.20p -4.15%Old Mutual (OML) 150.90p -2.90%CRH (CRH) 1,252.00p -2.11%Capita (CPI) 732.50p -2.07%Evraz (EVR) 369.40p -2.07%Lloyds Banking Group (LLOY) 30.32p -2.02%Kazakhmys (KAZ) 879.50p -2.01%NR