道指、标普创新高，德纳维制药深夜狂拉38%，金银走势分化，钯金大跌7%

Market Performance - US stock markets closed early due to the Christmas holiday, with all three major indices recording gains for five consecutive days, marking new all-time closing highs for both the S&P 500 and Dow Jones [1] - The Dow Jones increased by 0.6% to 48,731.16 points, the S&P 500 rose by 0.32% to 6,932.05 points, and the Nasdaq gained 0.22% to 23,613.31 points [1][2] Sector Performance - Large technology stocks showed mixed results, with the Tech Giants Index slightly up; Apple led with a 0.53% increase, while Intel fell by 0.52% and Nvidia dropped by 0.32% [2] - Micron Technology surged by 3.77%, with a year-to-date increase of over 241%; Sandisk rose by 2.12%, and Western Digital increased by 0.73%, with year-to-date gains of 613% and 300% respectively [2] Individual Stock Highlights - Denali Therapeutics saw its stock price soar over 38% following Sanofi's announcement of a $2.2 billion acquisition to expand its vaccine product line [3] - Nike's stock closed nearly 5% higher, although it has dropped over 12% year-to-date, underperforming the S&P 500 [4] - Notably, Apple CEO Tim Cook purchased 50,000 shares of Nike stock, marking his first personal investment in the company, which is seen as a strong signal of confidence in Nike's future value [5] Commodity Market - Gold and silver prices showed a divergence, with COMEX gold futures closing at $4,505.4 per ounce, while COMEX silver futures rose to above $71 per ounce [6][7] - Palladium experienced a significant drop of over 8%, with NYMEX palladium futures closing near $1,800 per ounce [6] Economic Indicators - Initial jobless claims in the US were reported at 214,000, lower than the expected 224,000, indicating a stronger labor market [8][9] - The four-week average of initial claims was 216,750, suggesting stability in the job market, which may influence the Federal Reserve's future interest rate decisions [9]