金银期价大幅下探，发生了什么？

Core Viewpoint - The domestic futures market for metals experienced significant declines, particularly in precious metals like silver and gold, with major contracts hitting their daily limit down, indicating a lack of substantial support for the bullish fundamentals [1][4]. Group 1: Market Performance - On December 30, the metal sector opened lower, with notable declines in Shanghai silver and gold, and platinum and palladium futures hitting their daily limit down [1]. - The main contracts for Shanghai gold and silver reported declines of over 3% and 5% respectively, while platinum and palladium futures saw a drop of 13% [3]. - Other metals such as copper, aluminum, zinc, lead, and tin also experienced varying degrees of decline, with tin futures dropping over 5% [3]. Group 2: Analyst Insights - Analysts noted that recent volatility in the metal sector, particularly in precious metals, is attributed to a lack of supportive fundamentals and potential profit-taking by investors [1][4]. - Despite expectations of a more accommodative monetary policy from the Federal Reserve and geopolitical risks supporting precious metals, the rapid price increases have led to accumulated risks in related contracts [4]. - The overall sentiment in the precious metals market has been positive due to tight fundamentals for silver and platinum, but there is a need for caution as profit-taking may lead to short-term adjustments in prices [4].