上期所宣布：白银期货“提保扩板”

Group 1 - The Shanghai Futures Exchange announced adjustments to silver futures contract trading margin ratios and price fluctuation limits, effective from December 12, increasing the fluctuation limit to 15% and the margin ratio for holding positions to 16% [1] - Global silver prices have surged significantly, with London spot silver breaking $61 per ounce for the first time, marking a 70% increase in the second half of the year and a 110% increase year-to-date [1] - The main silver futures contract on the Shanghai Futures Exchange closed at 14,373 yuan per kilogram on December 10, up 5.44%, and has risen 89% year-to-date [1] Group 2 - The rapid increase in silver prices has led to premium risks for related silver funds, with the Guotai Asset Management announcing significant fluctuations in the trading price of its silver fund [2] - As of December 9, the net asset value of the Guotai silver fund was 1.5595 yuan, while the closing price on December 10 was 1.815 yuan, indicating a substantial premium over the net asset value [2] - The fund has issued multiple risk warning announcements in December, advising investors to be cautious of high premium rates that could lead to significant losses [2]