量化交易新规7月7日实施；证监会：始终把维护市场稳定作为监管工作首要任务｜每周金融评论（2025.6.30-2025.7.7）

Core Viewpoint - The article emphasizes the importance of maintaining market stability as a primary regulatory task, highlighting the need for a balanced approach between efficiency and fairness in capital market operations [8][9]. Group 1: Regulatory Developments - The China Securities Regulatory Commission (CSRC) held a meeting on July 2, 2025, stressing the need for a stable market environment and the implementation of mechanisms to prevent risks in areas such as bond defaults and private equity funds [8]. - The CSRC aims to optimize capital market mechanisms, including stock and bond financing and mergers and acquisitions, to support technological and industrial innovation [8][9]. Group 2: Cross-Border Payment System - The People's Bank of China (PBOC) released a draft for public consultation regarding the rules for the Renminbi Cross-Border Payment System, indicating a move to adapt to the evolving needs of cross-border payment systems [6][7]. Group 3: Quantitative Trading Regulations - New regulations for quantitative trading came into effect on July 7, 2025, tightening the supervision of high-frequency trading, which could lead to increased costs and a shift in trading strategies [12]. - The new rules may result in a short-term decrease in market liquidity, with daily trading volumes potentially dropping by approximately 100 billion yuan due to high-frequency trading accounting for 20%-30% of A-share trading [12]. Group 4: Hong Kong IPO Market - In the first half of 2025, Hong Kong's IPO market raised over 107 billion HKD, ranking first globally, with a 22% increase compared to the previous year [13]. - The rise in IPOs reflects Hong Kong's strengthened position as an international financial center, driven by regulatory innovations and improved market conditions [13].