臺灣加權指數9月9日（週三）收盤上漲77.58點，漲幅0.16%，報47183.36點。

LME three-month copper slipped 0.3% in European trade to $14,685/tonne from a prior close of $14,728/tonne, staying close to record highs after several days of gains. Prices are being supported by US potential tariff concerns and supply challenges at major global mines. Sucden Financial says copper needs to hold $14,600/tonne to maintain the breakout, warning a break below could prompt a larger pullback given the recent run-up. A narrowing near-month vs three-month spread indicates near-term supply tightness is easing despite benchmark prices near historical peaks.

U.S. President Trump touts the stock market and economic data.