Platinum and palladium futures experienced significant gains on December 15, driven by a broader commodity market rally. Platinum futures hit a 7%涨停 on the Guangzhou Futures Exchange, while palladium futures rose by 4.73%. This surge is attributed to tight supply conditions and increasing demand, particularly in the hydrogen energy sector. Analysts highlight structural shortages and potential easing by the Federal Reserve as supportive factors for the rally. However, they caution about ongoing risks such as market volatility and the possibility of substitution. The rally has also elevated the fear and greed index, indicating a renewed risk appetite among traders.