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Core Viewpoint - The article discusses the effectiveness of grid trading strategies in the context of high volatility and potential high returns in the A-share market, particularly focusing on the securities sector as an ideal application for such strategies [1][12]. Group 1: Market Conditions and Strategy Suitability - The A-share market is experiencing increased volatility as the Shanghai Composite Index approaches the 4000-point mark, creating a challenging investment environment characterized by both high volatility and high returns [1]. - Grid trading strategies, which emphasize disciplined "buy low, sell high" operations, are well-suited for navigating this volatility, particularly in the securities sector, which is highly sensitive to market liquidity and policy changes [1][2]. Group 2: Product Characteristics and Execution Efficiency - The success of grid trading relies on selecting trading targets that exhibit moderate volatility, ample liquidity, and reasonable valuations. The E Fund Hong Kong Securities ETF (513090) and the E Fund CSI 300 Non-Bank ETF (512070) are highlighted as ideal choices due to their unique product advantages [1][3]. - The Hong Kong Securities ETF has an annualized daily volatility of 32.5%, significantly higher than other thematic ETFs, making it suitable for the "high buy low sell" operations of grid strategies [2]. - The E Fund CSI 300 Non-Bank ETF provides a diversified exposure to the non-bank financial sector, reducing individual stock volatility risk and featuring low trading fees, which aligns with the cost control needs of high-frequency trading [3]. Group 3: Performance and Strategy Optimization - Backtesting data from August 1, 2025, to November 7, 2025, shows that the grid trading strategy for the Hong Kong Securities ETF achieved a cumulative return of 4.63%, outperforming a -0.77% return from a traditional buy-and-hold strategy during the same period [9]. - The grid strategy's ability to convert negative returns into positive ones is demonstrated through multiple successful trades during market fluctuations, highlighting its effectiveness in volatile conditions [9][11]. - Compared to other investment strategies, the grid strategy yielded a positive return of 11.50% during a similar volatile market period, showcasing its superior performance in translating volatility into profit [11]. Group 4: Investment Recommendations - In the current market environment characterized by increased volatility around the 4000-point level, the securities sector is positioned as an attractive area for grid trading strategies due to its low valuations, high elasticity, and improving performance [12]. - Investors are encouraged to leverage high-quality ETF tools and scientifically set strategies to capture investment opportunities in the securities sector during this volatile market phase [12].