现货白银、COMEX白银均跌逾4%，沪银期货主力合约跌逾3%，上期所：做好市场风险控制工作

Core Viewpoint - Silver prices have accelerated their decline, with spot silver and COMEX silver both dropping over 4%, while Shanghai silver futures fell more than 3% as of January 7 [1] Group 1: Market Adjustments - The Shanghai Futures Exchange (SHFE) issued four announcements prior to the night trading session on January 7, advising market participants to manage risk and adjusting trading margin ratios, price limits, trading limits, and transaction fees for silver futures [1][3] - Starting from January 9, 2026, the SHFE will adjust the trading margin ratios and price limits for silver futures contracts AG2601, AG2602, AG2603, and AG2604, with price limits set at 16% and margin ratios for hedging positions at 17% and for general positions at 18% [3][4] Group 2: Trading Limits and Fees - The maximum number of contracts for day trading in silver futures for non-futures company members and special overseas non-broker participants will be limited to 7,000 contracts starting from January 9, 2026, with specific rules for related accounts [4] - The transaction fees for silver futures AG2604 will be adjusted to 0.025% of the transaction amount for day trading starting from January 9, 2026 [5]