Group 1 - The core viewpoint indicates that gold prices experienced a slight increase of 0.47%, reaching $3290.70 per ounce, while showing a cumulative decline of 0.39% for July [1] - COMEX gold futures saw a minor decrease of 0.16%, settling at $3290.60 per ounce, with the October contract down by 0.26% at $3316.80, reflecting a cumulative drop of 0.59% for July [1] - The Philadelphia Gold and Silver Index rose by 0.07%, closing at 204.21 points, with a cumulative increase of 1.69% for July [1] Group 2 - Spot silver prices increased by 1.69%, reaching $36.7180 per ounce, while COMEX silver futures rose by 1.72%, closing at $36.795 per ounce, indicating an overall M-shaped trend [1] - COMEX copper futures experienced a significant decline of 13.30%, priced at $4.4270 per pound [1]