黄金跌约0.4%，纽约铜期货跌1%持续试探5.5美元的支撑位

Group 1 - The spot gold price decreased by 0.39%, closing at $3342.68 per ounce, with an intraday trading range of $3375.01 to $3341.15 [1] - COMEX gold futures fell by 0.38%, settling at $3351.40 per ounce [2] - The Philadelphia Gold and Silver Index dropped by 0.36%, ending at 210.30 points [3] Group 2 - Spot silver declined by 0.75%, priced at $38.1290 per ounce, while COMEX silver futures decreased by 1.35%, closing at $38.430 per ounce [3] - COMEX copper futures fell by 0.98%, trading at $5.5265 per pound, having previously reached a historical high of $5.8955 on July 8 [3] - Spot platinum decreased by 1.04%, closing at $1367.53 per ounce, and spot palladium fell by 0.82%, ending at $1191.89 per ounce [4]