The TAIEX fell for the fourth day, reversing earlier gains. Formosa Plastics Corp (台塑) and Taiwan Styrene Monomer Corp (台苯) declined on concern that rising crude prices will boost their raw material costs.
Taiwan Semiconductor Manufacturing Co (TSMC,
The TAIEX shed 2.78, or 0.1 percent, to 4,496.05. The index rose as much as 0.9 percent in intra-day trading. About five stocks rose for every four that declined. Shares worth NT$30.6 billion (US$880 million) changed hands, the lowest volume since Oct. 16, 2001.
"Most investors rather stay sidelined to monitor the development in Iraq," said Mike Shiao (
MSCI Taiwan futures for March delivery in Singapore rose 0.1 percent to 192.60, while the Taiwan Futures Index declined 0.1 percent to 4,470.
Formosa Plastics shed NT$0.10, or 0.2 percent, to NT$45.40, its third consecutive day of decline. Taiwan Styrene dropped NT$0.70, or 2.3 percent, to NT$29.30.
Crude oil for May delivery rose as much as NT$0.69, or 2.5 percent, to US$28.66 a barrel in after-hours electronic trading on the New York Mercantile Exchange. It traded at US$28.55 a barrel at 1:29pm in Singapore.
TSMC, the world's largest maker of computer chips on a subcontracting basis, rose NT$0.40, or 0.9 percent, to NT$47. Its US traded shares added 1.8 percent to US$8.09 yesterday, equivalent to NT$56.23.
"Many investors will turn to movements in the US market for direction," said Simon Chao (
Billionton Systems Inc (
Yieh Hsing Enterprise Co (燁興) fell NT$0.45, or 6.7 percent, to NT$6.30. The company yesterday offered to swap its own shares with privately held Yieh United Steel Corp (燁聯) to take over the rival steelmaker.



