美股盘初，主要行业ETF涨跌不一，半导体ETF、网络股指数ETF涨幅居前。

Core Viewpoint - The major industry ETFs in the US stock market showed mixed performance, with semiconductor and internet stock index ETFs leading the gains [1]. Group 1: Semiconductor and Internet Stocks - The semiconductor ETF (SMH) increased by 4.56 to 203.47, representing a rise of 2.29% with a trading volume of 678,200 shares and a total value of 24.05 billion [1]. - The internet stock index ETF (FDN) rose by 3.47 to 222.01, marking a gain of 1.59% with a trading volume of 8,124 shares and a total value of 147.41 billion [1]. Group 2: Other Technology and Sector ETFs - The technology sector ETF (XLK) saw an increase of 2.88 to 200.92, which is a 1.45% rise with a trading volume of 312,500 shares and a total value of 639.04 billion [1]. - The gold ETF (GLD) rose by 2.21 to 305.87, reflecting a 0.73% increase with a trading volume of 1,639,300 shares and a total value of 827.36 billion [1]. - The energy sector ETF (XLE) increased by 0.53 to 81.77, a rise of 0.65% with a trading volume of 776,800 shares and a total value of 204.77 billion [1]. Group 3: Underperforming ETFs - The biotechnology index ETF (IBB) decreased by 0.17 to 121.83, a decline of 0.14% with a trading volume of 67,616 shares and a total value of 96.73 billion [1]. - The regional bank ETF (KRE) fell by 0.10 to 53.45, representing a decrease of 0.18% with a trading volume of 1,204,100 shares and a total value of 44.61 billion [1]. - The financial sector ETF (XLF) declined by 0.15 to 47.56, a drop of 0.32% with a trading volume of 2,697,600 shares and a total value of 529.42 billion [1].