Shim said investors were on guard ahead of the release of quarterly earnings reports from big US investment banks this week, including Lehman Brothers Holdings Inc., Goldman Sachs Group Inc., and Morgan Stanley. Bear Stearns called off its report.
In an extraordinarily move, the Federal Reserve cut the discount rate, its lending rate to financial institutions, to 3.25 percent from 3.5 percent, effective immediately. The Fed also created another lending facility for big investment banks to secure short-term loans that would be available to big Wall Street firms on Monday.
The Fed was also widely expected to again cut its headline interest rate, the fed funds rate, by as much as a full percentage point to 2 percent at a regular meeting set for Tuesday.
In currency trading, the dollar plunged as low as 95.72 yen — its lowest since August 1995 — dragged down by a gloomy outlook for the American economy and prospects for lower interest rates. The euro rose to a record high $1.5903.
Japanese officials quickly called for calm in the currency markets, but did not announce any plans for intervention to shore up the greenback by buying up dollars.
Oil prices, meanwhile, hit an all-time trading high in Asia as the greenback's tumble and the decline in stock markets prompted investors to seek shelter in commodities such as crude oil. Light, sweet crude for April delivery spiked to a record $111.80 a barrel in electronic trading on the New York Mercantile Exchange.
On Friday, US stocks sank after the announcement of a Fed plan in conjunction with JPMorgan to alleviate the liquidity crisis at Bear Stearns touched off concerns about the severity of credit troubles in the world's largest economy. The Dow Jones industrial average fell 194.65, or 1.60 percent, to 11,951.09.
Wall Street appeared poised for another drop when trading resumed Monday morning. Dow index futures were down 164 points, or 1.4 percent, to 11,818, while the Standard & Poor's 500 index was down 21.7 points, or 1.65 percent, to 1,291.6.
Further slides in Asian markets are likely, said Ismael Cruz, the governor of the Philippine Association of Securities Brokers and Dealers, Inc.
"The outlook is very grim," he said.