Footsie lost more ground over the lunch time session as Wall Street opened mixed, failing to carry on the strong advance seen yesterday.GKN is lower on speculation of a bid for French peer Latecoere. The French aerospace firm, which provides doors for Boeing and Airbus, is looking for a buyer, according to reports from a French newspaper. Chinese aviation group AVIC and Dutch aircraft firm Fokker-Stork are also potential bidders. Meanwhile, specialty chemicals group Johnson Matthey, which is heavily dependent on the catalytic converter market, and Inchcape, the car seller, are sharply lower on the back of concerns over their exposure to the Japanese car industry. Toyota and Honda have extended plant shutdowns until the weekend, at least.Prudential is "firing on all cylinders", with its final results beating consensus expectations on all key performance measures, according to UBS. The Swiss bank remains a buyer and ups the target price from 800p to 850p, saying "our detailed analysis suggests a strong underlying picture."Elsewhere in the financial sector Royal Bank of Scotland is buoyed by comments from the group's managing director and head of corporate finance, Tom Emmet, who said the bank is rubbing its hands at the prospect of being involved in at least two flotations in the Middle East and Africa region in 2011 and a further seven to ten mandates for bond issuances.Fund manager Schroders gets a leg-up from Citigroup, which has raised its price target for the ordinary shares from 1960p to 2000p.Cairn Energy is wanted in a generally firm oil sector. Anyone hoping that the release of the results would coincide with an agreement with the Indian authorities over the proposed sale of its Rajasthan assets to Vedanta was disappointed, as the sale of its 51% stake in Cairn India is still awaiting approval. Cairn posted a net profit of $1.08bn in 2010, up from $53m. An update on the oil explorer's plans for Greenland was generally well received. RBS analyst Phil Corbett said that Greenland is an exciting exploration opportunity over the long term, "and that the shares deserve to trade at a premium to our 400p estimate of the read through from the Vedanta deal." RBS rates the shares a "buy" and has a 510p target price for the stock.Turkish Airlines has signed a $200m order for Rolls-Royce's flagship Trent 700 engines to power three Airbus A330 freighters.Punch Taverns, the biggest pubs group in Britain, is to split itself in two by the end of the summer and sell thousands of boozers. The review, which started in October, has concluded that the way forward is to separate the Spirit managed pubs business from the struggling leased operation - Punch. This will create two independent public companies and allow the investment and development needed to speed up its operational turnaround and drive growth. The market - most of it anyway - raised a glass to news of the deal. Broker Peel Hunt was a dissenting voice. "The proposed demerger is less favourable to equity shareholders than we would have assumed, and as a result we expect to reduce our valuation of Spirit to c70p. Although shareholders still get the potential benefit of equity in the tenanted division of Punch, we struggle to attribute any value to this," the broker said, as it moved its rating from "buy" to "hold".Another stock getting downgraded is advertising giant WPP. Exane BNP Paribas has moved to a neutral stance on the company that some pundits speculate may be the subject of a move by the Chancellor of the Exchequer in tomorrow's Budget to move its tax base back to Britain from Ireland. Shares in troubled sportswear retailer JJB Sports shot up this morning ahead of the results of the vote on the firm's controversial restructuring plans. Speculators were betting that the proposal would get the thumbs up from creditors and investors and their hunch proved correct though, as per the old adage of "buy on the rumour, sell on the fact", the shares came off the top when the vote in favour was confirmed. Sticking with turnaround situations, shareholders in AIM-quoted AssetCo have passed all the resolutions at its reconvened general meeting today after chief executive John Shannon was forced to vote in favour. The outsourced fire services provider obtained an injunction yesterday evening that required Shannon to vote in favour of the resolutions because he had originally promised irrevocable support for them. AssetCo can now raise £16m at 10p a share.Ports operator Forth Ports has agreed a bid worth 1,630p a share from major shareholder, the Arcus European Infrastructure Fund. Shareholders will also get to keep the proposed final dividend of 20p a share expected to be paid on 13 May. "The Arcus offer gives Forth Ports shareholders the opportunity to realise their investment for cash at a fair price," chairman David Richardson said.An extensive exploration programme in 2010 has hauled gold miner Petropavlovsk's proven and probable reserves up by 36%.Treatt, which makes ingredients for the flavour, fragrance and cosmetic industries, said results for the full year are expected to be materially higher than previously anticipated after strong trading at its US division. Trading during the half year 'significantly exceeded expectations' while order books have remained strong, the group. Beowulf Mining pulled out of its recent share price slump after releasing assay results for the first 10 drill holes on its Kallak South iron ore project in Sweden. The drilling programme has confirmed the presence of a high grade iron ore of a similar type and quality to the ore uncovered at Kallak North.VPhase, the energy saving products group, made "considerable" progress last year and thinks it should begin to break even on a monthly basis by early 2012.