Group 1 - The best-performing fund managed by manager Ai Xiaojun in the second quarter of 2025 is the Guotai Nasdaq 100 ETF (513100), with a quarterly net value increase of 17.15% [1] - Ai Xiaojun manages a total of 13 funds, with the Guotai Zhongzheng All Index Securities Company ETF (512880) having a scale of 29.795 billion yuan and a quarterly increase of 4.47% [2] - The Guotai Nasdaq 100 ETF has an annualized return of 18.77% and a scale of 15.446 billion yuan, with major holdings including Nvidia, which has a weight of 8.30% [2] Group 2 - During Ai Xiaojun's tenure as the manager of the Guotai Shanghai Stock Exchange 180 Financial ETF, the cumulative return is 176.97% with an average annualized return of 9.25% [2] - The number of adjustments in major holdings during this period is 86, with a profit rate of 60.47% [2] - Notable successful stock adjustments include Guizhou Moutai, which yielded an estimated return of 673.28% over a holding period of over four years [4][6] Group 3 - The Guotai CES Semiconductor Chip ETF (512760) has a scale of 11.474 billion yuan and a quarterly decrease of 0.27% [2] - The Guotai Zhongzheng All Index Communication Equipment ETF (515880) has a scale of 2.7 billion yuan and a quarterly increase of 14.87% [2] - The Guotai Standard & Poor's 500 (QDII-ETF) has an annualized return of 17.27% and a scale of 578 million yuan [2]

Market Performance - The recent 5 trading days saw the Sci-Tech 50 Index increase by 0.24%, the ChiNext Index rise by 4.13%, large-cap value stocks up by 1.55%, large-cap growth stocks up by 2.05%, the SSE 50 Index up by 1.46%, and the small-cap represented by the CSI 2000 up by 3.77% [1] - The defense and military industry, as well as the communication sector, performed well, while steel and retail sectors lagged behind [1] Risk Premium Analysis - The static PE of the CSI All Index minus the yield of 10-year government bonds indicates a risk premium, which has historically reached extreme levels at two standard deviations above the mean during significant market bottoms, such as in 2012, 2018, and 2020 [1] - As of April 26, 2022, the risk premium reached 4.17%, and on October 28, 2022, it was 4.08%, with a recent reading of 4.11% on January 19, 2024, marking the fifth occurrence since 2016 of exceeding 4% [1] Valuation Levels - As of May 9, 2025, the CSI All Index's PETTM is at the 50th percentile, with the SSE 50 and CSI 300 at 61% and 47% respectively, while the ChiNext Index is close to 11% [2] - The ChiNext Index's valuation is relatively low compared to historical averages [2] Long-term Market Trends - The technical analysis of the Deep 100 Index indicates a pattern of bear markets every three years followed by bull markets, with previous declines ranging from 40% to 45% [2] - The current adjustment cycle began in Q1 2021, suggesting a potential for upward movement from the bottom [2] Fund Flow and Trading Activity - In the last 5 trading days, ETF funds saw an outflow of 17.9 billion yuan, while margin trading increased by approximately 4.4 billion yuan [2] - The average daily trading volume across both markets was 1.2918 trillion yuan [2] AI and Machine Learning Insights - A convolutional neural network (CNN) was utilized to model price and volume data, mapping learned features to industry themes, with a current focus on banking [2][7] Market Sentiment - The proportion of stocks above the 200-day moving average is being tracked to gauge market sentiment [9] Equity and Bond Risk Preference - Ongoing monitoring of risk preferences between equity and bond assets is being conducted [11]