* FTSE ends down 5.7 percent at 4,272.41 points
* Jittery market shrugs off 150 bps rate cut from BoE
* Commodities shares, banks tumble
By Rebekah Curtis
LONDON, Nov 6 (Reuters) - Britain's FTSE 100 <
> slid 5.7 percent on Thursday, with banks and commodities skidding after a surprise 150 basis-point rate cut by the Bank of England's which failed to calm investors' jangled nerves.The FTSE ended down 258.32 points at 4,272.41 points.
The index briefly rallied after the rate cut, but headed south again as investors, bracing themselves for a recession, focused on how deeply a snowballing financial crisis would damage the economy.
British blue-chip shares have shed about 34 percent in value so far this year in a credit crisis that has put the brakes on world growth and wreaked havoc and brought hefty losses in the global banking system.
The Bank of England (BoE) slashed borrowing costs to 3 percent, their lowest level in more than half a century, and the central bank's biggest cut since it was made independent in 1997. (For a TAKE A LOOK on the BoE rate cut, click on [
])"While clearly this is good news in the long term, inevitably it just shows what a desperate situation the economy is in at the moment, and the fact that they're having to use historically drastic action to try to turn things around," said Henk Potts, strategist at Barclays stockbrokers.
Banks were standout losers on the day, with Barclays <BARC.L>, HSBC <HSBA.L>, Lloyds TSB <LLOY.L> and Royal Bank of Scotland <RBS.L> down between about 4 and 10 percent.
Lloyds said it would cut its standard variable rate on mortgages to 5 percent from 6.5 percent after the Bank of England slashed interest rates by 150 basis points to 3 percent.
Most economists polled by Reuters had forecast a half-point cut from the BoE, although several had changed their forecasts to 100 basis points after gloomy data.
"This is not that they know something that we don't. What the Bank of England have admitted today was that they were behind the curve," said Neil Parker, a strategist at Royal Bank of Scotland. "It's a bold move, it's the right move."
ECB RATE-CUT
The European Central Bank was tamer with the axe, cutting borrowing costs by 50 basis points to 3.25 percent. Shares skidded across Europe.
U.S. stocks fell between about 2 and 3 percent, depressed by a disappointing revenue outlook from Cisco Systems <CSCO.O> and bleak sales from some major U.S. retailers.
British oil shares languished with crude prices <CLc1>. Royal Dutch Shell <RDSa.L> and BP <BP.L> slid 7.4 and 5.7 percent respectively.
Miners tracked downward pressure on metals prices as the dollar climbed. Rio Tinto <RIO.L> and BHP Billiton <BLT.L> both lost 15 percent.
Vedanta Resources <VED.L> tumbled 20.5 percent after the India-focused miner posted a 24.7 percent drop in first-half profit to $350 million, but said it was well placed to cope with lower metal prices.
Man Group <EMG.L> was the FTSE's biggest casualty, plunging 31.2 percent after the hedge fund group reported a 24 percent fall in pretax profit to $622 million in the six months to end-September due to a drop in performance fees and amortisation charges.
Private equity group 3i <III.L> fell 12.9 percent after the firm said first-half revenues from company disposals were down 43 percent as the credit crisis had made it difficult to sell companies in which it had invested.
British technology group Invensys Plc <ISYS.L> fell 17.6 percent after it posted weaker than expected first half operating profit and said sales of its control systems were suffering in the consumer downturn, sending its shares down 13.5 percent.
The BoE's interest rate decision comes at a time when British house prices are plunging. House prices fell by a record 14.9 percent on the year in October, the Halifax house price survey showed. [
]But shares in International Power <IPR.L> rose 2.8 percent as investors took comfort from a positive trading update, analysts said. The British power generator said it expected another year of growth in 2008. (Additional reporting by Harpreet Bhal; Editing by David Cowell)