* FTSE 100 up 1.9 percent; bargain hunters prevail
* Prudential climbs on talk AIA deal is off
* BP leads energy stocks higher; defining day in oil spill
By David Brett
LONDON, May 27 (Reuters) - Britain's top shares rose in midday trade on Thursday as investors continued to hunt bargains after recent steep falls, with Prudential leading insurers higher on talk its takeover of AIG's Asian arm may be abandoned.
By 1059 GMT, the FTSE 100 <
> index was up 93.82 points, or 1.9 percent at 5,131.90, adding to the previous session's 2 percent gain.The blue chip index is still down 12 percent since mid-April when fears about the euro zone debt crisis escalated.
"Stocks are being viewed on the cheap side and, while the sentiment is there, the market will continue to rise," Jimmy Yates, head of equities at CMC Market said.
"I can't see investors getting too far ahead of themselves though given the uncertainty still lingering in the background." <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Graph on stock performance in 2010: http://graphics.thomsonreuters.com/10/GLB_PRFE0510.html Latest wrapup on the euro zone debt crisis: [
] Graphic on the euro zone debt: http://link.reuters.com/fyw72j Global investing blog http://blogs.reuters.com/globalinvesting/ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>Evidence that the UK recovery will not be plain sailing came as British retail sales suffered an unexpected hit in May. [
]Among the big gainers, Prudential <PRU.L>, Britain's largest insurer, added 6 percent on market talk its $35.5 billion takeover of U.S. giant AIG'S Asian business may be off.
Prudential said it would not comment on market rumour and speculation.
The Times earlier reported that shareholders holding up to 15 percent of the British insurer's shares plan to write to the chairman saying they oppose the takeover.
Prudential led the insurers higher, with the sector also boosted by an upbeat note from Nomura on Aviva <AV.L> and Legal & General <LGEN.L>.
The broker said it saw "remarkable value" for investors in the two stocks on growing evidence that significant credit provisions could constitute "hidden reserves" that might materially boost earnings over the medium term.
Aviva and Legal & General rose 6.0 percent and 5.5 percent respectively.
Elsewhere, BP <BP.L> led a rally by oil majors as it faces a defining day in its five-week Gulf of Mexico oil spill disaster when its latest attempt to seal a gushing well deep underwater will be deemed either a success or a failure. [
]BP has lost over 20 percent of its market value since news of the spill broke.
Other energy stocks, BG Group <BG.L>, Royal Dutch Shell <RDSa.L>, Tullow Oil <TLW.L>, and Cairn Energy <CNE.L> gained 0.9 to 3.8 percent, helped by a rally in crude <CLc1>, up above $72 per barrel as demand sentiment improved.
IT'S A MAN'S WORLD
British hedge fund manager Man Group <EMG.L> topped the FTSE <
> leaders board, up 8.0 percent, after the company posted better-than-expected annual profits and said a decline in its asset values has bottomed out since March.Banks extended Wednesday's gain as euro zone fears ebbed and risk appetite improved. Lloyds Banking Group <LLOY.L>, Royal Bank of Scotland <RBS.L> and Barclays <BARC.L> added 3.3 percent - 3.8 percent.
The market took heart from comments from an official in China which allayed fears that the country may be distancing itself from euro zone debt holdings. [
].Miners were good performers, helped by firmer metal prices, and as Australia left open the possibility of watering down its "super tax" on the sector. [
]Vedanta Resources <VED.L>, Rio Tinto <RIO.L>, Kazakhmys <KAZ.L> and Fresnillo <FRES.L> climbed 4.2 percent to 6.1 percent.
A batch of U.S. data is due later in the session, with the second reading for Q1 GDP and the latest weekly jobless claims due at 12.30 GMT giving an indication on the recovery stateside.
U.S. stock index futures pointed to a strong rebound on Wall Street on Thursday after a late sell-off in the previous session, with the S&P 500 <SPc1>, Dow Jones <DJc1> and Nasdaq 100 <NDc1> futures all up sharply.
(Editing by Elaine Hardcastle)