沪指突破3800点！A500ETF基金（512050）涨1.6%，昆仑万维等多股涨停

Group 1 - A-shares experienced a strong rebound on August 22, with the Shanghai Composite Index surpassing 3,800 points, marking a new high for the period [1] - The technology sector led the market rally, with active concepts including GPU, servers, stock trading software, and optical module CPO [1] - The A500 ETF (512050) rose by 1.69%, with major holdings such as Kunlun Wanwei and Haiguang Information hitting the daily limit, and Cambrian's stock surging over 17% [1] Group 2 - Foreign institutional investors are accelerating their entry into A-shares, with global hedge funds buying Chinese stocks at the fastest pace since June [1] - As of August 21, foreign institutions held approximately 2.5 trillion yuan in A-shares, an 8% increase from the end of 2024, accounting for 2.72% of the total circulating market value [1] - Among the 920 companies that disclosed their mid-year reports for 2025, 261 had qualified foreign institutional investors (QFII) among their top ten shareholders, with a total holding value of about 30.14 billion yuan [1] Group 3 - The new generation core A500 ETF (512050) and A500 Enhanced ETF (512370) facilitate investors in accessing core A-share assets [2] - The ETF tracks the CSI A500 Index, employing a dual strategy of industry balanced allocation and leading stock selection, covering all 35 sub-industries [2] - The ETF has a natural "dumbbell" investment characteristic, overweighting sectors such as AI, pharmaceuticals, renewable energy, and defense industries compared to the CSI 300 [2]