证券时报·2025-07-04 09:21Market Overview - A-shares showed strong performance in the morning but retreated in the afternoon, with the Shanghai Composite Index reaching a new high for the year, up 1% at one point, and closing at 3472.32 points, a gain of 0.32% [1] - The Shenzhen Component Index and ChiNext Index turned negative in the afternoon, with the former down 0.25% and the latter down 0.36% [1] - The total trading volume in the Shanghai, Shenzhen, and Beijing markets reached 145.47 billion yuan, an increase of over 120 billion yuan compared to the previous day [1] Sector Performance Banking Sector - The banking sector performed strongly, with major banks like CITIC Bank, Industrial Bank, and Shanghai Pudong Development Bank hitting new highs, with gains exceeding 3% [6][7] - The overall stability of the banking sector's fundamentals is expected to enhance valuation safety, supported by a relatively ample credit supply and a positive policy stance on interest margins [6][7] Power Sector - The power sector saw significant gains, with companies like Shaoneng Co., ShenNeng Electric A, and Huayin Power hitting the daily limit, while Xiexin Energy rose over 7% [9][10] - High temperatures in northern China are expected to increase electricity demand, with a projected increase of approximately 100 million kilowatts during peak summer periods in 2025 [10][11] Digital Currency Sector - The digital currency sector became active again, with Longbright Technology rising over 13% and Tianyang Technology increasing by more than 10% [12][13] - Recent developments in stablecoin regulations in the U.S. and Hong Kong are expected to promote further adoption of cryptocurrencies [14][15]