金银突发！芝商所出手，保证金大变！

Group 1 - The Chicago Mercantile Exchange (CME) announced changes to the margin setting for gold, silver, platinum, and palladium contracts, shifting from a fixed dollar amount to a percentage of the contract's nominal value [1] - The new margin requirements will be approximately 5% for gold contracts and about 9% for silver contracts, effective after the market closes on January 13 [1] - This adjustment marks the third increase in margin requirements for precious metals by CME in the past month, with a simultaneous decrease in margin for most natural gas contracts [1]