上期所：调整黄金、白银交易保证金比例和涨跌停板幅度

Core Viewpoint - The Shanghai Futures Exchange has announced adjustments to margin requirements and price fluctuation limits for gold and silver futures contracts, effective from December 30, 2025, in preparation for the New Year holiday period in 2026 [1][4]. Group 1: Margin and Price Fluctuation Adjustments - The price fluctuation limit for gold and silver futures contracts has been adjusted to 15% [1][4]. - The margin requirement for holding positions in gold and silver futures has been set at 16% for hedging positions and 17% for general positions [1][4]. - The fluctuation limit and margin requirements for the silver AG2602 contract remain unchanged at 15% and 16% for hedging, and 17% for general positions [4]. Group 2: Holiday Trading Schedule - There will be no night trading on December 31, 2025, and the market will be closed from January 1 to January 4, 2026 [2]. - Trading will resume on January 5, 2026, with a collective auction from 08:55 to 09:00, followed by the resumption of night trading on the same day [3]. Group 3: Future Adjustments - After the first trading day without a one-sided market following January 5, 2026, the price fluctuation limits and margin requirements for specific gold and silver futures contracts will remain unchanged, while other futures contracts will revert to their original levels [4].