As the year-end approaches, the market continues last week's trend, with relatively light trading volume. During such quiet periods, a short-term piece of news can often trigger significant market volatility, so everyone needs to pay slight attention (especially those chasing rallies). Over the weekend, the CME Group issued a major margin adjustment notice on December 26th, stating that it will comprehensively increase the performance margins for metal futures such as gold, silver, platinum, and palladium after the close on Monday, December 29th.Normally, this is just a routine exchange operation for high-volatility products. However, when a product experiences abnormally rapid one-sided movement in a short period, such news often leads to substantial volatility (though not necessarily a t