A股大小指数分化：沪指涨0.04%，创指跌0.66%，商业航天题材活跃

Market Performance - The three major A-share indices showed mixed performance on December 29, with the Shanghai Composite Index up 0.04% to 3965.28 points, while the Shenzhen Component Index fell 0.49% to 13537.1 points and the ChiNext Index dropped 0.66% to 3222.61 points [2] - A total of 1993 stocks rose while 3325 stocks fell across the exchanges, with a total trading volume of 21,393 billion yuan, a decrease from the previous day's 21,601 billion yuan [3] Sector Performance - The defense and military sector saw strong gains, with several stocks hitting the daily limit or rising over 10%, including Aerospace Huanyu and Guangwei Composites [5] - The oil and petrochemical sector led the market, with stocks like Intercontinental Oil and Unified Shares reaching the daily limit, while several banks also experienced gains of over 3% [5] - The lithium battery supply chain faced declines, with significant drops in retail stocks and sectors like Hainan Free Trade Zone and cross-border e-commerce [2][5] Market Outlook - Citic Securities indicated that the A-share market has entered a cross-year rally, driven by positive signals from the Shanghai Composite Index and optimistic expectations from institutional investors [7] - The market is expected to experience a "spring surge" as liquidity improves and policy expectations rise, with the overall market showing signs of strength [7] - Guosheng Securities noted that while the market is still in a phase of adjustment, there are opportunities for investors to position themselves ahead of potential upward movements [8] Investment Recommendations - Huatai Securities suggested that despite a short-term market adjustment, there is potential for a spring rally, recommending investments in sectors such as batteries, chemicals, military, and consumer goods [9] - The report emphasized the importance of focusing on stocks with pricing power and policy support within these sectors [9]