Stocks gained for a second session. Taiwan Semiconductor Manufac-turing Co (TSMC, 台積電) advanced after California-based Nvidia Corp, one of its largest customers, said second-quarter sales may beat some analysts' forecasts.
Nvidia makes graphics processors for personal computers and Microsoft Corp's Xbox video-game console.
The TAIEX added 16.84, or 0.4 percent, to 4,261.02. More than five stocks fell for every four that gained. The Taiwan Futures Index rose 0.5 percent to 4,245.
TSMC added NT$0.80, or 1.7 percent, to NT$48.30.
"TSMC is the least affected by slowing overseas demand for technology products and the spread of SARS, because of its dominant position in the industry," said Celine Chiang (江宜津), who helps manage the equivalent of US$144 million in equities at Polaris International Securities Investment Trust Co (寶來投信).
Nvidia said sales this quarter may increase as much as 18 percent to US$478 million.
Nvidia, which last year accounted for almost a third of TSMC's sales, expects to keep its orders with the company at about US$1 billion this year, a local newspaper reported, citing Huang Jen-hsun (
Evergreen Marine Corp (長榮海運) fell NT$0.60, or 2.3 percent, to NT$25. Yang Ming Marine Transport Corp (陽明海運) declined NT$0.60, or 3.3 percent, to NT$17.60. EVA Airways Corp (