Stocks fell for the first day in four. Hon Hai Precision Industry Co (鴻海精密) dropped on concern computer orders may slow after Hewlett-Packard Co said sales this fiscal year will rise less than it expected.
The TAIEX slid 66.44, or 1.4 percent, to close at 4,727.49. More than two stocks fell for every one that rose. The total value of trade was NT$71.4 billion (US$2.04 billion).
Hon Hai, the nation's largest maker of computer parts and a Hewlett-Packard supplier, shed NT$2.50, or 1.9 percent, to NT$131.50.
"We're avoiding computer-related stocks," said Katherine Chen, who manages NT$800 million (US$23 million) in stocks at International Investment Trust Co (國際投信).
"We're not optimistic about computer demand this year or next," she said.
High Tech Computer Corp (宏達國際) rose NT$10, or 6.5 percent, to NT$165. The maker of handheld computers for customers such as Orange SA said it withdrew an application to sell shares to overseas investors.
Macronix International Co (旺宏電子) dropped NT$1, or 6.9 percent, to NT$13.60. The maker of memory chips for electronic games said November sales fell 6 percent from a year ago to NT$1.5 billion.
Nanya Technology Corp (南亞科技) fell NT$1.20, or 4.4 percent, to NT$26. The chipmaker raised NT$7.7 billion selling new shares to fund construction of a chip plant.
Orient Semiconductor Electronics Ltd (
Quanta Display Inc (廣輝電子) fell NT$0.90, or 5.9 percent, to NT$14.40. The flat-panel display maker owned by Sharp Corp and Quanta Computer Inc (廣達電腦) dumped its NT$1.7 billion pretax profit forecast for the year for a NT$452.4 million loss, blaming tumbling prices.
Shin Tai Industry Co (興泰實業) rose NT$1.10, or 6.5 percent, to NT$18. The maker of feeds for ducks, chickens and other animals more than doubled its pretax profit forecast for the year to NT$102.5 million, from NT$49.5 million, citing rising prices.
Yuanta Core Pacific Securities Co (
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