黄金突发跳水，降息，大消息

Group 1: Market Reaction to Trade News - Gold prices experienced a significant drop, with London gold falling over 1% to below $4100 and COMEX gold also declining by more than 1% [1] - The highest price for London gold was recorded at $4111.555, while the lowest was $4063.350 [2] - COMEX gold saw a decrease of $47.5, or -1.15%, with a closing price of $4090.3 [3] Group 2: Trade Relations Developments - Canadian Prime Minister Carney expressed readiness to continue trade negotiations with the U.S. amid easing trade tensions [5] - U.S. President Trump announced an additional 10% tariff on Canada due to perceived negative advertising related to tariffs [5] - Brazilian President Lula reported constructive talks with President Trump regarding tariffs and sanctions, with immediate discussions planned [5] Group 3: Federal Reserve Interest Rate Expectations - The Federal Reserve is expected to lower interest rates by 25 basis points, bringing the federal funds rate to a range of 3.75% to 4.00% [6] - Investors are closely monitoring the Fed's language post-meeting for signals on future rate adjustments [6] - Despite a consensus on the October rate cut, there are internal disagreements within the Fed regarding the future path of rate cuts due to ongoing inflation risks [6]