有色金属、锂矿股飙升，A股成交额突破2万亿元，高手看好三大主线

Market Performance - The Shanghai Composite Index experienced significant fluctuations, with a brief drop followed by a recovery, ultimately closing up 0.10% at 3963.68 points [1] - The total trading volume in the Shanghai and Shenzhen markets reached 2.16 trillion yuan, an increase of 235.7 billion yuan compared to the previous Thursday [1] Sector Highlights - The commercial aerospace sector continued to perform strongly, along with notable gains in non-ferrous metals and lithium mining stocks [1] - Participants in the competition expressed optimism about the price increase themes in lithium carbonate, precious metals, and non-ferrous metals [3] Competition Overview - The 80th edition of the "Digging Gold Competition" began on December 15, with registration open from December 13 to December 31, featuring simulated trading with a capital of 500,000 yuan [1] - Cash rewards for the competition include 688 yuan for the first place, with additional prizes for subsequent positions, and a total of 500 yuan to be shared among other profitable participants [3] Additional Benefits - Participants who register for the competition will receive free access to the "Fire Line Quick Review" for six trading days, with top performers receiving extended access [4] - The "Fire Line Quick Review" product includes insights on market trends, investment logic, and company analysis, highlighting significant gains in sectors such as the Nvidia supply chain, rare earths, and tungsten [4]