Hedge fund manager Man Group is rising on rumours that a US bank might bid. The shares have risen by around 15% so far this month. Like-for-like sales growth at retailer Marks & Spencer's UK stores was well ahead of market expectations in the third quarter. M&S delivered a 5.3% increase in the 13 weeks to 2 October, which was better than even the most optimistic of forecasts. Miners are heading lower with Kazakhmys leading the way. Shares in chip designer ARM have fallen even though Morgan Stanley has initiated coverage with an overweight recommendation. FTSE 100 - RisersMan Group (EMG) 247.90p +4.29%Marks & Spencer Group (MKS) 405.50p +3.76%RSA Insurance Group (RSA) 135.30p +3.05%Burberry Group (BRBY) 1,032.00p +2.69%Capital Shopping Centres Group (CSCG) 396.70p +1.93%ICAP (IAP) 457.10p +1.69%GlaxoSmithKline (GSK) 1,294.50p +1.69%International Power (IPR) 406.00p +1.68%Hammerson (HMSO) 418.00p +1.46%National Grid (NG.) 570.00p +1.33%FTSE 100 - FallersKazakhmys (KAZ) 1,413.00p -4.72%Antofagasta (ANTO) 1,277.00p -2.74%Lloyds Banking Group (LLOY) 74.40p -2.61%Wolseley (WOS) 1,610.00p -2.60%ARM Holdings (ARM) 380.70p -2.21%Essar Energy (ESSR) 494.70p -1.75%Royal Bank of Scotland Group (RBS) 48.70p -1.60%Bunzl (BNZL) 756.50p -1.56%Cairn Energy (CNE) 445.60p -1.48%BAE Systems (BA.) 350.90p -1.27%