Stock fell yesterday, as waning corporate earnings returned in the form of diminished forecasts from electronics retailer RadioShack and network computer giant Sun Microsystems, among others.

"Certainly Sun's earnings warning was much worse than expected and weighing heavily on technology stocks," said Mr Tim Ghriskey, senior portfolio manager at mutual fund company Dreyfus Corp. "There's been a big run-up in tech stocks since April 3 and the sector was really due for a correction."

Year-to-date, the Nasdaq composite is down 15.6 per cent, the Dow is up 0.80 per cent, and the S&P 500 has dropped 5.5 per cent.