By Dominic Lau
LONDON, April 25 (Reuters) - Britain's top share index edged up by midday on Friday as optimism that banks had seen the worst of credit market-linked writedowns lifted the sector, though miners tracked lower metal prices.
By 1030 GMT, the FTSE 100 <
> was up 13.9 points, or 0.2 percent at 6,064.6, underperforming Frankfurt's DAX < > and Paris' CAC-40 < > because of weakness in heavyweight miners."The strengthening in the dollar has impacted on the oil price, which should be broadly good for companies," said Keith Bowman, equity analyst at Hargreaves Lansdown.
Oil dipped below $116 a barrel as a stronger dollar offset concerns over supply disruptions in Nigeria and the North Sea.
Beaten-down banks were the standout gainers, with HBOS <HBOS.L>, HSBC <HSBA.L>, Barclays <BARC.L>, Royal Bank of Scotland <RBS.L> and Lloyds TSB <LLOY.L> up between 0.8 and 2.4 percent.
UBS said in a report that it had upgraded the global banking sector to "neutral", citing improvements in credit markets, increased government intervention, a near-end to marked-to-market writedowns and fundraising by banks.
Also in the financial sector, ICAP <IAP.L> and London Stock Exchange <LSE.L> put on more than 4 percent.
GlaxoSmithKline <GSK.L> advanced 1.7 percent after European drug regulators recommended approval of Glaxo's new breast cancer pill Tykerb, or Tyverb, but with additional warnings about potential liver toxicity, late on Thursday. [
]WPP Group <WPP.L>, however, topped the losers' list on the FTSE 100, down 7.5 percent after the world's second-largest advertising firm reported first-quarter like-for-like revenue growth towards the low end of forecasts.
Also in the media sector, ITV <ITV.L> fell 3.2 percent after Morgan Stanley cut its price target with an "underweight" rating over concerns that the UK display advertising environment had suddenly deteriorated.
Heavyweight miners were also down, as traders cited falling metal prices and profit-taking after recent advances in the sector.
Antofagasta <ANTO.L> shed 3.5 percent, Kazakhmys <KAZ.L> dropped 2.7 percent, Eurasian Natural Resources <ENRC.L> lost 4 percent and Anglo American <AAL.L> slipped 2.5 percent.
Shares in Carphone Warehouse <CPW.L> rose 4.2 percent, making them among the top gainers, after Morgan Stanley lifted its rating on the stock to "overweight" from "equal weight".
Traders also said persistent bid speculation was also boosting the shares. Carphone declined to comment.
Bus and train operator FirstGroup <FGP.L> added 4.1 percent after peer Go-Ahead Group <GOG.L> said trading for the third quarter of its financial year was strong and it expected to deliver a full-year performance in line with its expectations.
Go-Ahead jumped nearly 14 percent. (Additional reporting by Michael Taylor)