期货收评：钯期货涨超4%，线材涨超3%，铂期货、PVC涨超2%；沪锡跌超3%，沥青、沪镍、低硫燃油、菜油跌超2%

Group 1: Macro Perspective - The Federal Reserve's FOMC meeting on December 11 resulted in a rate cut of 25 basis points to 3.5-3.75%, with a commitment to purchase $40 billion in short-term government bonds monthly starting December 12 to maintain liquidity [2] - The market's expectation of continued monetary easing by the Federal Reserve has not changed, leading to a weaker dollar and supporting the overall price increase of precious metals [2] - Following new highs in gold and silver prices, funds have shifted towards relatively undervalued platinum and palladium, driving a rebound in these metals [2] Group 2: Supply and Demand Dynamics - South Africa's ongoing electricity crisis, maintenance of aging mines, and declining production capacity are disrupting global platinum and palladium supply [2] - Geopolitical factors are also affecting Russian supply, contributing to the overall supply disturbances of platinum and palladium [2] - On the demand side, weak demand for traditional automobiles negatively impacts platinum and palladium [2] Group 3: Market Performance - As of December 16, domestic main contracts showed mixed results, with palladium rising over 4% and platinum futures, PVC increasing over 2% [3] - In contrast, Shanghai tin fell over 3%, while asphalt, nickel, low-sulfur fuel oil, and rapeseed oil dropped over 2% [3] - The performance of platinum is slightly better than that of palladium, indicating a potential for further price increases in both metals [4]