道指暴泻近900点！科技、中概板块重挫

Market Overview - The US stock market experienced a significant decline on Friday, driven by renewed concerns over geopolitical tensions and trade policy uncertainty, with the technology sector leading the drop [2] - The CBOE Volatility Index (VIX) surged to its highest level since mid-June, indicating a sharp increase in market fear [2] - The Dow Jones Industrial Average fell by 878.82 points, closing at 45479.60 points, a drop of 1.9%; the S&P 500 Index decreased by 182.6 points to 6552.51 points, down 2.71%; and the Nasdaq Composite Index dropped by 820.2 points to 22204.43 points, a decline of 3.56% [2] Weekly Performance - For the week, the S&P 500 Index declined by 2.43%, the Dow Jones Industrial Average fell by 2.73%, and the Nasdaq decreased by 2.53% [2] Sector Performance - Major technology stocks saw widespread declines, with Broadcom down 5.9%, Tesla down 5.1%, Amazon down approximately 5%, Nvidia down 4.9%, Meta down 3.9%, Apple down 3.45%, Microsoft down 2.2%, and Alphabet down 1.95% [2] - The semiconductor sector was particularly hard hit, with the Philadelphia Semiconductor Index dropping by 6.3% [3] - Chinese concept stocks also faced pressure, with the Nasdaq Golden Dragon China Index falling by 6.1%, including Alibaba down over 8%, Pinduoduo down over 5%, JD.com down over 6%, and NIO down over 10% [3] Bond Market - In the bond market, the yield on the 10-year US Treasury note fell by 9.1 basis points to 4.057%, the lowest in over a month; the two-year Treasury yield decreased by 7.5 basis points to 3.512% [3] Economic Indicators - The University of Michigan's preliminary consumer confidence index for October remains at historically low levels, with inflation and employment outlooks dampening consumer sentiment [4] - Federal Reserve officials indicated that future monetary policy adjustments should proceed with a "cautious and gradual" approach, with potential rate changes of 25 basis points [4] - Commodity markets experienced increased volatility, with international oil prices significantly declining; WTI crude oil futures fell by 4.24% to $58.90 per barrel, and Brent crude oil futures dropped by 3.82% to $62.73 per barrel [4] - Gold futures rose by 0.70% to $4000.4 per ounce, supported by safe-haven buying [4]