AH比较系列（4）：A股优势有望延续

Core Insights - The report indicates that A-shares are expected to outperform Hong Kong stocks in the second half of 2025, driven by factors such as increased domestic capital inflow, restructuring of international monetary order, and favorable policies for certain sectors [1][2]. Market Performance - From August 18 to December 12, 2025, the Shanghai Composite Index rose by 5.2%, and the CSI 300 increased by 9.0%. In contrast, the Hang Seng Index only gained 2.8% during the same period [1]. - The growth of the ChiNext Index and the STAR 50 was significant, with increases of 26.0% and 22.5% respectively, highlighting the strong performance of growth-oriented stocks in A-shares [1]. Reasons for A-share Outperformance - Fundamentals: A-shares have advantages in high-growth sectors such as hard technology and new energy, which are expected to see improved performance in the second half of the year. The report notes that A-shares are more focused on hardware sectors like semiconductors and electronics, while Hong Kong stocks are more represented by large internet companies [2]. - Liquidity: The report highlights that the active participation of individual investors and the inflow of medium to long-term funds have provided A-shares with additional liquidity. The margin trading balance increased from 2.1 trillion yuan in mid-August to 2.5 trillion yuan by mid-December [2][4]. - Overseas Factors: A-shares are less affected by overseas liquidity and trade policy risks compared to Hong Kong stocks, which have a higher proportion of foreign investment. The report notes that recent fluctuations in U.S. monetary policy and trade relations have had a more pronounced impact on Hong Kong stocks [2][3]. Future Outlook - The report anticipates that A-shares will continue to maintain their relative advantages in the medium term, particularly as AI technology begins to see more widespread industrial application. Key areas of focus include computing power, cloud computing, and domestic production [4]. - The liquidity in the A-share market is expected to remain active, with the potential for further inflows from bank wealth management products and institutional investors [4]. - The restructuring of the international monetary order and the revaluation of Chinese assets are expected to further support the performance of A-shares compared to Hong Kong stocks [4].