Global power systems firm Rolls-Royce was the high riser on Thursday after it revealed two major initiatives which are expected to significantly raise its operating profits in the future. Following close behind was Hargreaves Lansdown, after the wealth management stockbroking firm said first-quarter operating revenue rose 27% to £57.2m. Ashmore Group was heading in the opposite direction, after it said total assets under management (AuM) decreased 10.5% to $58.9 billion in the third quarter of 2011.Despite rising earlier on, the banking sector is well and truly out of favour on the back of reports that credit ratings agency Fitch could issue a sector-wide downgrade later today. Barclays is in the bottom 10.The mining sector was also dragging the index lower as copper prices dropped on widespread concerns after the weaker-than-expected Chinese trade data. Kazakhmys leads the sector lower.FTSE 100 - RisersRolls-Royce Group (RR.) 670.50p +7.11%Hargreaves Lansdown (HL.) 490.60p +1.97%SABMiller (SAB) 2,304.00p +1.27%British American Tobacco (BATS) 2,782.00p +1.13%International Consolidated Airlines Group SA (IAG) 167.40p +0.97%Tate & Lyle (TATE) 630.00p +0.88%Kingfisher (KGF) 262.40p +0.77%Unilever (ULVR) 2,052.00p +0.74%Imperial Tobacco Group (IMT) 2,165.00p +0.70%Cairn Energy (CNE) 292.40p +0.69%FTSE 100 - FallersMan Group (EMG) 146.30p -6.40%Ashmore Group (ASHM) 312.50p -5.70%Kazakhmys (KAZ) 881.50p -5.42%Antofagasta (ANTO) 1,091.00p -5.21%Anglo American (AAL) 2,298.50p -5.02%Vedanta Resources (VED) 1,202.00p -4.83%Weir Group (WEIR) 1,649.00p -4.57%Xstrata (XTA) 937.10p -4.49%Schroders (SDR) 1,338.00p -4.15%Barclays (BARC) 179.35p -4.09%NR