中小投资者迎喜讯，A股制度建设迎来重大升级！

Market Overview - The market experienced a high and then a pullback, with the Shanghai Composite Index briefly rising over 1% to approach 3500 points [1] - Market hotspots were mixed, with over 4100 stocks declining, while the total trading volume in the Shanghai and Shenzhen markets reached 1.43 trillion yuan, an increase of 118.8 billion yuan from the previous trading day [2] Sector Performance - Bank stocks strengthened again, with several stocks like Pudong Development Bank reaching historical highs [3] - Stablecoin concept stocks rebounded, with companies like Jingbeifang hitting the daily limit [3] - Power stocks remained active, with Huayin Electric also hitting the daily limit [3] - In contrast, solid-state battery concept stocks underwent adjustments, with companies like Xinyu Ren falling over 10% [3] Regulatory Changes - A significant upgrade in A-share system construction is set to take place, with the implementation of the "Procedural Trading Management Implementation Rules" on July 7, 2025, aimed at regulating quantitative trading practices [4] - The new regulations detail four types of abnormal trading behaviors, including excessive order submission rates, frequent order cancellations, simultaneous manipulation of multiple stocks, and large transactions within a short time frame [5] - High-frequency trading is defined as more than 300 orders per second or over 20,000 orders per day, which will attract regulatory scrutiny [6] - These changes may limit trading enthusiasm in the short term, particularly for small-cap stocks that are heavily traded by quantitative strategies [6] Earnings Outlook - The upcoming earnings season is expected to highlight companies with better-than-expected performance, with several companies already issuing forecasts since late June [8] - The TMT sector, driven by AI, is anticipated to show strong earnings growth, with the computer industry reporting a profit growth rate of 671.5% in the first quarter [9] - The "trade-in" policy is expected to support resilience in the home appliance and automotive sectors, with profit growth rates of 25.3% and 11.3%, respectively [10] - Other sectors such as steel, building materials, and non-ferrous metals are also expected to see marginal improvements in profitability due to low base effects and price increases [10] - Key sectors expected to maintain high growth rates in mid-year reports include TMT (semiconductors, optical electronics, consumer electronics), midstream manufacturing (automotive, photovoltaics), and consumer services [13]