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Group 1 - Gold prices reached around $3,450 per ounce, marking the best monthly performance since April, driven by expectations of a potential interest rate cut by the Federal Reserve in September [1][3] - The S&P 500 index fell 0.64% to 6,460.26 points, while the Nasdaq and Dow Jones indices also experienced declines of 1.15% and 0.20%, respectively, as investors analyzed inflation data indicating the impact of tariffs on prices [1] - The Federal Reserve is expected to cut rates once or possibly twice this year, which is generally supportive of commodity prices, including gold and silver [3] Group 2 - The U.S. dollar remained stable but experienced a monthly decline of 2.2%, making gold cheaper for overseas buyers [3] - The personal consumption expenditures price index in the U.S. rose 0.2% month-over-month and 2.6% year-over-year, aligning with expectations [3] - Traders increased the likelihood of a 25 basis point rate cut at the September policy meeting from 85% to 89% following the release of inflation data [3]