深夜黄金大跳水，白银暴跌26%，美股全线下跌，亿鹏能源狂飙超3000%，美国宣布对伊朗最新制裁

Market Overview - On January 31, US stock indices closed lower, with the Dow Jones down 0.36%, the Nasdaq down 0.94%, and the S&P 500 down 0.43% [1][2] - The panic selling affected global precious metal markets, with silver prices dropping over 36% and gold prices falling below $5,000, reaching a low of $4,709.68 per ounce [2][5] Technology Sector - Major technology stocks mostly declined, with the Wande American Technology Seven Giants Index down 0.32%. Notable declines included META and TSMC, both down nearly 3%, while Tesla saw a rise of 3% [2] - The semiconductor sector experienced significant losses, with companies like AMD and GlobalFoundries dropping over 5%, and Micron Technology and Intel down over 4% [2][4] Chinese Stocks - The Nasdaq China Golden Dragon Index fell by 2.36%, with many Chinese stocks declining, including Bilibili and Li Auto, both down over 3%. However, Yipeng Energy surged by 3141.11% [3][4] Precious Metals - The precious metals sector saw a significant drop, with gold and silver prices plummeting. COMEX gold futures fell by $447.30, a decline of 8.35%, while COMEX silver futures dropped by $29.18, a decrease of 25.50% [5][6] - Major gold mining companies also faced steep declines, with Barrick Gold down 12.09% and AngloGold down 13.28% [4] Economic Indicators - Recent economic data from the US shows mixed signals, with December PPI rising 3.0%, indicating persistent inflationary pressures. The Chicago PMI for January rebounded to 54, indicating unexpected expansion in manufacturing activity [8] Federal Reserve Nomination - The potential nomination of Kevin Walsh as the next Federal Reserve Chair by President Trump has raised concerns in the market, as Walsh is known for his hawkish stance on monetary policy, which could impact future asset prices [7][8]