- Stocks rebound after Draghi-fuelled sell-off- Chinese data improves- RBS leads banks higher after first-half resultsThe Footsie rose strongly Friday morning, rebounding after a heavy sell-off the day before, with RBS and the banks providing a lift early on.Stocks sank yesterday after a press conference with European Central Bank (ECB) President Mario Draghi failed to live up to expectations. One week after Draghi excited investors by saying that the Bank would do "whatever it takes to preserve the euro", he explained that while it is ready to intervene in the bond markets (to bring down elevated bond spreads), this is subject to a number of conditions that Eurozone members must adhere to first. "These comments clearly didn't go down well with Germany and the Bundesbank who refused to comment about the lack of action from the ECB. The ECB president met with Jens Weidmann, head of the Bundesbank, in the run up to the ECB meeting and given his sheepish appearance, it would suggest he did not receive the backing he was hoping for," said analyst Craig Erlam from Alpari.The HSBC/Markit Chinese service sector purchasing managers' index (PMI) rose from 52.3 to 53.1 in July. Combined with the manufacturing data, the composite index improved from 50.6 to 51.9.Hongbin Qu, the chief economist for China at HSBC said: "The modest gain in July's HSBC services and manufacturing PMIs implies that the slowdown of the Chinese economy is likely to have stabilised. That said, the pace of expansion suggested by the composite PMI remained only modest and is not sufficient to warrant a meaningful recovery."The news increased speculation that China would be slow to step up policy easing to boost economic growth.Meanwhile, markets will be looking ahead to non-farm payrolls data from the US today, which are expected to have increased by 100,000 in July, after increasing by 80,000 the month before. The jobless rate is expected to stay at 8.2% though.FTSE 100: RBS gains, IAG drops after first-half resultsRoyal Bank of Scotland advanced after saying that the performances of its ongoing businesses in the first half were more resilient than before. RBS's operating profit in the first half of 2012 was £1,834m, down from £1,966m the year before, after a £125m provision for costs arising from the technology incident in June 2012 and a £50m provision for interest rate swap mis-selling. Sector peers Barclays and Standard Chartered were also in demand.Heading the other way was airline group IAG after saying that it would fail to achieve its 'break-even' operating target this year after it registered a steep loss in the six months to June 30th as fuel costs jumped and losses at its Spanish airline increased.Mining group BHP Billiton gained after saying that its Chief Executive Officer would forgo his 2012 bonus after a $2.84bn write-down on US shale gas assets.Pharmaceuticals giant GlaxoSmithKline rose after completing its $3.6bn acquisition of Human Genome Sciences (HGS), its long-term biotech partner.FTSE 250: Inmarsat and Rentokil lead the waySecond-quarter earnings at Inmarsat were down but the satellite operator was encouraged by progress in returning its core Global MSS business to growth, causing shares to jump early on.Rentokil Initial, the laundry and pest control conglomerate, also rose after saying its troubled courier division will turn a profit by the end of the year, while first-half profits across the whole business have risen dramatically.FTSE 100 - RisersAviva (AV.) 295.80p +3.72%Barclays (BARC) 168.05p +3.54%Royal Bank of Scotland Group (RBS) 211.30p +3.33%Evraz (EVR) 236.20p +3.01%Aggreko (AGK) 2,162.00p +2.95%Schroders (SDR) 1,338.00p +2.77%Admiral Group (ADM) 1,128.00p +2.27%CRH (CRH) 1,175.00p +2.17%Kingfisher (KGF) 271.40p +2.11%Prudential (PRU) 761.50p +2.08%FTSE 100 - FallersInternational Consolidated Airlines Group SA (CDI) (IAG) 151.20p -5.08%Associated British Foods (ABF) 1,267.00p -0.24%Smith & Nephew (SN.) 673.50p -0.22%Centrica (CNA) 318.30p -0.19%Vodafone Group (VOD) 187.90p -0.03%Diageo (DGE) 1,717.00p -0.03%FTSE 250 - RisersInmarsat (ISAT) 526.00p +8.61%ITE Group (ITE) 197.70p +4.27%Rentokil Initial (RTO) 74.70p +4.26%Ferrexpo (FXPO) 177.60p +3.50%Taylor Wimpey (TW.) 47.70p +3.36%International Personal Finance (IPF) 293.40p +3.13%Barratt Developments (BDEV) 138.00p +2.91%Home Retail Group (HOME) 76.75p +2.88%Bodycote (BOY) 332.60p +2.75%Talvivaara Mining Company (TALV) 142.60p +2.59%FTSE 250 - FallersAquarius Platinum Ltd. (AQP) 33.50p -3.49%Kier Group (KIE) 1,230.00p -2.23%IP Group (IPO) 140.36p -1.71%Fidelity China Special Situations (FCSS) 72.70p -1.62%Brown (N.) Group (BWNG) 262.20p -1.58%Big Yellow Group (BYG) 310.70p -1.27%Perform Group (PER) 367.30p -1.26%Oxford Instruments (OXIG) 1,246.00p -1.11%Bank of Georgia Holdings (BGEO) 1,161.00p -1.11%Grainger (GRI) 90.00p -1.10%BC