London midday: Lloyds and RBS fall again as FTSE 100 slides

The leading share index is stuck below the 5,000 point mark amid continuing worries over the global economic situation. Banks Lloyds and RBS are suffering hefty losses again as is IAG, the owner of British Airways.But shares in Autonomy rocketed by over 75% in early trading after US computing giant Hewlett-Packard made a recommended offer for the Cambridge-based software firm, valuing it at around £7.09bn.Shareholders at FTSE 250 bus and rail transport firm Stagecoach celebrated after the firm announced that they are to pocket £340m as part of a proposed one-off return of cash. It has managed to stay in the fast lane today despite the slide.Nomura said that the shape of future earnings at Stagecoach is improving and revised its target price for the bus and train group to 278p, from 275p previously.High diamond prices have helped Gem Diamonds achieve record earnings in the first six months of 2011, which surged almost five-fold compared with the first half of 2010. Shares jumped over 3% higher.Fund manager Jupiter fell despite saying that it is to pay a maiden interim dividend of 2.5p after a strong performance in the first half of the year. Assets under management (AUM) at the end of June stood at £24.8bn, up from the year-end figure of £24.1bn.BSkyB fell after the Competition Commission provisionally determined that satellite broadcaster's control over the pay-TV film rights in the UK is restricting competition between pay-TV providers, leading to higher prices and reduced choice and innovation for subscribers.Turning to small companies today, shares in IPSO Ventures tumbled to a new low after the technology commercialisation group posted a pre-tax loss in the year to 30 April amid "challenging" trading. IPSO exploits innovations developed by researchers in universities and other institutions. FTSE 100 - RisersAutonomy Corporation (AU.) 2,490.00p +74.25%ARM Holdings (ARM) 490.20p +2.40%Petrofac Ltd. (PFC) 1,141.00p +0.71%Randgold Resources Ltd. (RRS) 6,460.00p +0.70%International Power (IPR) 290.60p +0.45%G4S (GFS) 242.90p -0.29%Fresnillo (FRES) 1,834.00p -0.33%Standard Chartered (STAN) 1,324.50p -0.53%Man Group (EMG) 184.50p -0.59%Smith & Nephew (SN.) 546.50p -0.64%FTSE 100 - FallersIMI (IMI) 727.00p -6.13%International Consolidated Airlines Group SA (IAG) 168.90p -5.85%Lloyds Banking Group (LLOY) 28.09p -5.75%Royal Bank of Scotland Group (RBS) 20.76p -5.42%Tullow Oil (TLW) 941.00p -5.33%John Wood Group (WG.) 499.90p -5.05%Land Securities Group (LAND) 727.50p -4.65%Kazakhmys (KAZ) 914.00p -4.59%Burberry Group (BRBY) 1,189.00p -4.50%GKN (GKN) 179.90p -4.46%FTSE 250 - RisersMisys (MSY) 247.10p +5.28%Aveva Group (AVV) 1,440.00p +3.45%Redrow (RDW) 113.90p +2.98%Ocado Group (OCDO) 117.00p +2.81%Stagecoach Group (SGC) 238.10p +2.67%Gem Diamonds Ltd. (DI) (GEMD) 186.60p +2.53%New World Resources A Shares (NWR) 527.00p +2.43%St. Modwen Properties (SMP) 136.10p +2.33%Kofax (KFX) 310.70p +2.20%JD Sports Fashion (JD.) 837.50p +2.01%FTSE 250 - FallersBodycote (BOY) 267.00p -5.95%Henderson Group (HGG) 122.30p -5.92%Lamprell (LAM) 279.40p -5.89%Morgan Crucible Co (MGCR) 233.80p -4.96%Pace (PIC) 94.25p -4.89%Aquarius Platinum Ltd. (AQP) 222.70p -4.83%Atkins (WS) (ATK) 528.50p -4.69%Michael Page International (MPI) 344.90p -4.67%Spectris (SXS) 1,277.00p -4.56%Dixons Retail (DXNS) 11.76p -4.55%