中金 | AH比较系列（4）：A股优势有望延续

Core Viewpoint - The A-share market is expected to outperform the Hong Kong stock market in the second half of 2025 due to factors such as increased incremental capital, restructuring of international monetary order, and favorable policies that benefit A-share sectors [2][3]. Group 1: Market Performance - From August 18 to December 12, the A-share market showed a significant performance advantage, with the Shanghai Composite Index rising by 5.2%, the CSI 300 by 9.0%, and the ChiNext Index and STAR 50 by 26.0% and 22.5% respectively, while the Hang Seng Index and Hang Seng Tech Index only increased by 2.8% and 1.7% [2]. - The leading sectors in both A-shares and Hong Kong stocks were similar, with notable gains in non-ferrous metals, semiconductors, and electrical equipment [2]. Group 2: Fundamental Factors - A-share advantages stem from high growth in sectors like hard technology and new energy, with A-shares benefiting more from the domestic economic recovery compared to Hong Kong stocks [3]. - The A-share market has a stronger focus on hardware sectors such as semiconductors and electronics, while Hong Kong stocks are more represented by large internet companies [3]. Group 3: Liquidity Factors - The A-share market has seen increased liquidity due to active participation from individual investors, with margin trading balances rising from 2.1 trillion yuan in mid-August to 2.5 trillion yuan by mid-December [4]. - The trend of "deposit migration" continues, with non-bank deposits maintaining high growth rates, contributing to the liquidity in the A-share market [4]. Group 4: Overseas Factors - The Hong Kong market is more sensitive to overseas factors, including international liquidity and trade policies, which have led to greater volatility compared to A-shares [5]. - Recent fluctuations in U.S. monetary policy and trade tensions have had a more pronounced negative impact on the Hong Kong market, while A-shares demonstrated resilience during these periods [5]. Group 5: Future Outlook - The A-share market is expected to maintain its advantages in the medium term, particularly in hardware sectors related to AI and cloud computing, as these areas are projected to see increased industrial application [6]. - Continued liquidity support from long-term capital inflows and favorable policies is anticipated to sustain A-share market activity [6]. - The restructuring of international monetary order and the potential for improved U.S.-China trade relations may further enhance the attractiveness of A-shares compared to Hong Kong stocks [6].