中概股飘绿，哔哩哔哩涨超6%，黄金、白银急剧跳水

Market Overview - As of October 21, US stock indices showed mixed performance, with the Dow Jones up by 0.89% and the Nasdaq down by 0.16% [1] - The Dow Jones Industrial Average reached 47,121.38, gaining 414.80 points [2] - The Nasdaq Composite Index was at 22,953.11, decreasing by 37.43 points [2] - The S&P 500 Index rose by 0.18%, closing at 6,747.05 [2] Technology Sector Performance - The Nasdaq 100 Index fell by 0.10%, while the major tech stocks showed varied results [2] - Amazon led the gains among the tech giants with a rise of 2.39%, while Google experienced the largest decline at 3.3% [3] - Apple continued its upward trend, increasing by 0.25% and reaching a new high [3] Chinese Stocks - The Nasdaq China Golden Dragon Index saw a slight decline of 0.6%, with most popular Chinese stocks experiencing losses [4] - Notable declines included NIO, Baidu, and Alibaba, each dropping over 2%, while Bilibili rose over 6% [4] Commodity Market - Precious metals faced significant declines, with gold prices dropping sharply, marking a 6% decrease, the largest drop since August 2020 [6][8] - The price of gold fell to $4,106.82 per ounce, with a daily loss of $250 [6] - Silver also saw a decline, dropping over 8% and falling below $48 per ounce [6] Geopolitical Impact - The changing dynamics of the Russia-Ukraine situation have introduced volatility in the gold market, with European leaders expressing strong support for Ukraine [7] - Analysts suggest that the current ETF holdings in gold are not at peak levels, indicating potential for further price adjustments if US economic data shows strength [7][8]