芝商所上调保证金，金银期货价格震荡

Group 1 - The core viewpoint of the articles highlights the volatility in gold and silver futures prices, with significant declines followed by a rebound in the market [2][3] - On February 2, 2023, gold futures closed at $4653 per ounce, down 1.95% from the previous trading day, while silver futures fell 1.94% to $77 per ounce [2] - Following the price drop, both gold and silver futures experienced a notable rebound in overnight trading, with increases exceeding 4% and 9% respectively [2] Group 2 - The Chicago Mercantile Exchange Group announced an increase in margin requirements for metal futures on January 30, raising gold futures margin from 6% to 8% and silver futures margin from 11% to 15%, effective after the close on February 2 [2] - The increase in margin requirements is expected to negatively impact related contracts by reducing speculative participation and liquidity, potentially forcing traders to liquidate positions [2] - Matthew Pigott from the independent research firm Metal Focus described the recent sell-off in precious metals as a "healthy correction," despite its extremity [3]