Market Overview - On the first trading day of 2026, the A-share market experienced a "red opening," with the Shanghai Composite Index surpassing 4000 points and over 4100 stocks rising, including 127 stocks hitting the daily limit [1][2] - Notable market participants included well-known speculators appearing on the leaderboard of several popular thematic stocks [1] Investment Themes - The most active sectors on January 5 included commercial aerospace, lithium batteries, and AI applications, with significant trading volumes concentrated in these areas [2][9] - The commercial aerospace sector index saw a substantial increase of 29.87% from November 24, 2025, to January 5, 2026 [2] Notable Stocks - **Aerospace Machinery (航天机电)**: - The stock saw significant buying from major speculators, with the top buying seat from Guotai Junan Securities in Yichang contributing 261 million yuan [2][3] - The total trading volume for the stock reached approximately 551.83 million yuan on January 5 [3] - **China Satellite Communications (中国卫通)**: - This stock attracted major speculative interest, with a buying amount of 341 million yuan from a prominent speculator's seat [4] - The stock also achieved a daily limit increase on the same day [4] - **Tianji Shares (天际股份)**: - The stock's leaderboard was notably active, with four of the top five buying seats being from well-known speculators [5][6] - The company specializes in lithium hexafluorophosphate, a key material for lithium batteries [5] - **Salt Lake Potash (盐湖股份)**: - The stock received significant buying interest, with major speculators purchasing over 118 million yuan [6][7] - The company is expected to report a net profit of 8.29 to 8.89 billion yuan for 2025, reflecting a year-on-year growth of 77.78% to 90.65% [7] - **BlueFocus Communication Group (蓝色光标)**: - The stock experienced a strong 20% limit increase, with total trading volume reaching 1.75 billion yuan [8] - However, the major speculators on its leaderboard primarily sold the stock [8] Speculative Activity - The trading activity on January 5 indicated a high level of engagement from speculators, particularly in the aforementioned sectors, suggesting a continuation of interest in these themes into the new year [9][10] - The brain-computer interface sector also saw some speculative activity, although it was primarily focused on stocks that also had lithium battery connections [9][10]