RBS adds to the strong gains it posted yesterday, and is the best performer in the FTSE 100. Barclays is another riser, boosted by comments from Deutsche Bank, which says the bank offers both growth and recovery potential.Also among today's big gainers is the hedge fund manager Man Group, which has benefited from some upbeat coverage from the broker Nomura. It has a buy rating on Man, which it thinks offers a strong market position, balance sheet and yield.Next falls after it kicked off the stream of Christmas trading updates by increasing full-year profit forecasts but saying it was cautious on prospects for 2010.Next's fellow clothing retailer Marks & Spencer, which is due to update tomorrow, is another faller.Also falling back is Cadbury after it emerged Kraft Foods is to bump up the cash element of its bid for UK gum and chocolate company, but Swiss rival Nestle ruled itself out of a bid.FTSE 100 - RisersRoyal Bank of Scotland Group (RBS) 34.86p +8.60%Barclays (BARC) 297.35p +5.99%Man Group (EMG) 328.00p +4.99%Lloyds Banking Group (LLOY) 54.43p +4.15%Fresnillo (FRES) 826.00p +3.25%Old Mutual (OML) 115.00p +3.23%Aviva (AV.) 405.40p +2.76%HSBC Holdings (HSBA) 745.90p +2.67%Legal & General Group (LGEN) 81.50p +2.52%Anglo American (AAL) 2,839.00p +2.51%FTSE 100 - FallersSmiths Group (SMIN) 1,042.00p -2.53%Marks & Spencer Group (MKS) 402.10p -2.50%Next (NXT) 2,087.00p -2.43%Unilever (ULVR) 1,949.00p -2.35%GlaxoSmithKline (GSK) 1,309.50p -2.24%Autonomy Corporation (AU.) 1,496.00p -2.16%Cadbury (CBRY) 789.50p -1.93%Diageo (DGE) 1,064.00p -1.75%Home Retail Group (HOME) 290.60p -1.69%Tesco (TSCO) 422.25p -1.44%