CME UPDATES PRECIOUS-METALS MARGIN RULES CME Group will set gold, silver, platinum, and palladium margins as a percentage of notional value instead of a fixed dollar amount, effective Tuesday’s close, after a surge in prices and volatility. The change aims to better reflect risk and reduce frequent adjustments, though extreme volatility could prompt further increases. Analysts say the move may temporarily pressure precious metals, which have rallied sharply amid a weaker dollar, potential Fed rate cuts, and speculation over U.S. import tariffs on silver.(*Walter Bloomberg)