白银重挫超5%！贵金属、金属突然大跌，发生了什么？

Group 1: US Stock Market - The US stock market experienced a collective decline, with the Dow Jones showing a slight drop, the S&P 500 down by 1%, and the Nasdaq falling sharply by 1.69%, with an intraday drop exceeding 2% [1] - The significant drop in the Nasdaq was attributed to Oracle postponing the construction of an OpenAI data center until 2028 due to labor and material shortages, leading to a 6% decline in Oracle's stock [1] - The entire AI sector was affected, with Nvidia and AMD dropping by 3% and 5% respectively, and Broadcom experiencing an 11% decline amid a backlog of $73 billion in AI product orders [1] Group 2: A-Share Market - A-share technology stocks are likely to be influenced by the decline in US tech stocks, which may lead to volatility in the upcoming week [2] - The current adjustment in A-share tech stocks is considered insufficient, making it challenging to initiate a second wave of market rally [2] Group 3: Precious Metals and Commodities - Precious metals, particularly silver, experienced a significant drop, with silver futures falling by 5% intraday, from $64 to $61, and closing down by 3.88% [4] - Copper futures also saw a near 4% intraday drop, closing down by 2.6%, attributed to new signals from the Federal Reserve indicating a more restrictive policy stance [4] - The market's outlook on potential interest rate cuts has become less optimistic, impacting inflation-related trades in metals and precious metals [4] - The recent declines in metals are viewed as technical adjustments rather than an end to the upward trend, driven by previous significant price increases [5]