美股盘初，主要行业ETF涨跌不一，半导体ETF跌超2%，生物科技指数ETF涨近2%。

Group 1 - The semiconductor ETF experienced a decline of over 2%, closing at 283.56 with a drop of 6.95 (-2.39%) [1][2] - The biotechnology index ETF saw an increase of nearly 2%, indicating positive movement in that sector [1] Group 2 - The global technology stocks ETF decreased by 1.70%, closing at 93.67 with a loss of 1.62 [2] - The technology sector ETF fell by 1.33%, ending at 257.76 with a decrease of 3.47 [2] - The network stocks index ETF dropped by 1.00%, closing at 267.59 with a decline of 2.69 [2] - The global airline industry ETF decreased by 0.90%, closing at 24.80 with a loss of 0.23 [2] - The regional banks ETF saw a slight decline of 0.13%, closing at 62.99 with a drop of 0.08 [2] - The consumer discretionary ETF increased by 0.19%, closing at 223.65 with a gain of 0.43 [2] - The financial sector ETF rose by 0.37%, closing at 52.59 with an increase of 0.20 [2] - The gold ETF increased by 0.49%, closing at 314.65 with a gain of 1.52 [2]