* Wall St drops on liquidation, deep recession fear
* Dow and S&P 500 down 4 percent, Nasdaq off 3 pct
* Forced selling exacerbates losses
* Energy companies' shares fall with oil price (Updates to afternoon, changes byline)
By Kristina Cooke
NEW YORK, Oct 24 (Reuters) - U.S. stocks tumbled on Friday in a worldwide selloff with investors cashing out of stocks as signs mounted that the global economic slowdown could be deeper than feared and the corporate profit outlook darkened.
Forced liquidations by hedge funds and mutual funds to raise cash to meet large-scale redemptions by investors made the losses even steeper, analysts said.
Stock markets tumbled around the globe on Friday.
For more see [
].By afternoon trading in New York, the MSCI's all-country world index <.MIWD00000PUS> was down 5.6 percent on more evidence of a sharp slowdown in Europe and a rash of profit warnings worldwide.
The sell-off on Wall Street did not, however, live up to investors' worst fears after selling in index futures before the marked opened was so severe that trading was halted.
Bellwether IBM Inc <IBM.N> was among the biggest drags on the Dow, falling 3.5 percent to $81.39, while Apple <AAPL.O> weighed on the Nasdaq, sliding 4.6 percent to $93.74.
Energy companies such as Chevron <CVX.N> also tumbled as the price of oil <CLc1> slid $3.84 to $64 a barrel on bets the global economic slowdown will cut into demand for fuel.
Estimates for S&P 500 third-quarter earnings growth fell further, with analysts on average expecting an 11 percent decline -- sharply below the 2.9 percent decline expected at the beginning of October, according to Thomson Reuters data.
"They're again looking at the global situation and seeing that it is deteriorating and the implication for earnings and investment opportunities is bleak," said Bucky Hellwig, senior vice president at Morgan Asset Management in Birmingham, Alabama.
"The continual liquidations of holdings from hedge funds as they raise cash for required and anticipated withdrawals is fueling the selling."
The Dow Jones industrial average <
> dropped 435.91 points, or 5.02 percent, to 8,255.34, while the Standard & Poor's 500 Index <.SPX> slid 46.21 points, or 5.09 percent, at 861.90. The Nasdaq Composite Index < > was down 66.14 points, or 4.12 percent, at 1,537.77. Its session low of 1,493.79 was the index's lowest intraday level since May 2003.U.S. bank shares fell on fears that losses from bad loans will soar due to a deep global recession, and as National City a large, ailing U.S. bank, agreed to be acquired at a below-market price.
Shares of National City Corp <NCC.N> slid 26.9 percent to $2.01 after PNC Financial Services Group Inc <PNC.N> said it would buy the Cleveland-based bank for $5.6 billion. [
]. PNC pushed against the current, gaining 1.1 percent to $57.52.Technology shares, including iPod maker Apple, fell on concern about the outlook for profits and consumer spending. News that Japan's Sony <6758.T> halved its profit forecast and Korea's Samsung <005930.KS> posted a 44 percent drop in quarterly profit also unsettled investors.
Among energy shares, Chevron <CVX.N> lost 7.5 percent to $61.75 while Exxon Mobil <XOM.N> gave up 4.8 percent to $67.04.
Before the market opened, stock futures fell so steeply they had to be frozen after triggering a limit down. Losses at the open were not as severe, however, and by midday, stocks had come off their lows before turning lower once again.
"Amazingly enough, we're not down more than this," said David Henderson, NYSE floor member and president of Raven Securities Corp, on the exchange floor.
"The market is showing some signs that there are value buyers out there."
Data showing the British economy shrank 0.5 percent in the third quarter, the first contraction in 16 years and substantially more than expected, fueled global economic concerns. [
]. (Additional reporting by Jonathan Spicer; Editing by James Dalgleish)