美联储按兵不动，内部分歧创纪录！铜价暴跌18%美股震荡，Meta营收展望超预期盘后暴涨12%，美对韩征15%关税

Market Performance - The U.S. stock market showed mixed performance on July 30, with the Dow Jones Industrial Average falling by 171.71 points, a decrease of 0.38%, closing at 44,461.28 points. The S&P 500 index dropped by 7.94 points, down 0.12%, ending at 6,362.92 points. In contrast, the Nasdaq Composite Index rose by 31.38 points, an increase of 0.15%, closing at 21,129.67 points [1][2]. Federal Reserve Decision - The Federal Reserve decided to maintain the federal funds rate target range at 4.25% to 4.50%, which was in line with market expectations. However, there was notable internal division within the Fed, with a 9-2 vote reflecting differing views on the economic outlook. The statement indicated increased caution, highlighting that "uncertainty remains high" [3]. Commodity Market Impact - Gold and copper stocks experienced significant declines, with U.S. gold prices dropping over 7%. Major gold mining companies like IGM and Newmont Mining saw their stocks fall sharply. The copper sector was particularly affected, with Freeport-McMoRan declining nearly 10%, accumulating a total drop of 13% over the past five trading days [4][6]. International Trade Developments - President Trump announced a 50% tariff on imports of semi-finished copper products and copper-intensive derivatives, effective August 1. However, raw copper materials and scrap copper are exempt from these tariffs. This decision contributed to a sharp decline in copper prices, with COMEX copper futures ultimately closing down 16.95% [6]. U.S.-South Korea Trade Agreement - The U.S. and South Korea reached a comprehensive trade agreement, where South Korea will invest $350 billion in U.S. projects and purchase $100 billion worth of LNG or other energy products. In return, the U.S. will impose a 15% tariff on South Korean goods, while U.S. products will be exempt from tariffs [7].