本周，标普500指数累跌约2.3%，道指累跌约2.5%，纳指累跌约2.4%，纳斯达克100指数累跌约2.4%，半导体指数累跌于4.4%、银行指数累跌约4.2%，美国科技股七巨头指数跌约2.8%、“特朗普关税输家指数”累跌5%，小盘股指跌3.3%，生物科技指数涨0.4%。周五当天，标普500指数初步收跌0.6%，科技板块跌1.2%，电信、可选消费、金融等板块至多跌0.9%，公用事业板块涨1.2%。纳斯达克100指数初步收跌0.9%，成分股Workday跌12.4%，Copart跌11.6%，罗斯百货跌9.9%

Market Performance - The S&P 500 index declined approximately 2.3% this week, while the Dow Jones Industrial Average fell about 2.5% [1] - The Nasdaq index dropped around 2.4%, and the Nasdaq 100 index also saw a decline of about 2.4% [1] - The semiconductor index experienced a significant drop of 4.4%, and the banking index fell approximately 4.2% [1] - The index tracking the seven major U.S. tech stocks decreased by about 2.8%, and the "Trump Tariff Losers Index" fell by 5% [1] - Small-cap stocks declined by 3.3%, while the biotechnology index saw a slight increase of 0.4% [1] Daily Performance - On Friday, the S&P 500 index initially closed down by 0.6%, with the technology sector dropping 1.2% [1] - Other sectors such as telecommunications, consumer discretionary, and financials saw declines of up to 0.9%, while the utilities sector rose by 1.2% [1] - The Nasdaq 100 index initially closed down by 0.9%, with notable declines in stocks like Workday (down 12.4%), Copart (down 11.6%), and Ross Stores (down 9.9%) [1] - Conversely, stocks such as CrowdStrike (up 2.9%), Grail (up 3.6%), and Intuit (up 8.2%) experienced gains [1]