Market Performance - The three major A-share indices collectively declined, with the Shanghai Composite Index down by 0.65%, the Shenzhen Component Index down by 1.76%, and the ChiNext Index down by 2.6% [1] - The total trading volume in the Shanghai, Shenzhen, and Beijing markets was 21,661 billion yuan, a decrease of 2,257 billion yuan compared to the previous day [1] - Over 3,400 stocks in the market experienced declines [1] Sector Performance - The sectors that saw the highest gains included wind power equipment, chemical fibers, agricultural chemical products, soybeans, textile manufacturing, and military equipment [1] - Conversely, the sectors with the largest declines included gaming, computing hardware, photolithography machines, and consumer electronics [1] ETF Performance - The Bosera All-Index Cash Flow ETF increased by 4.6%, with a latest premium/discount rate of 3.68% [1] - Hong Kong financial stocks performed well, with the Huaxia Fund Hong Kong Stock Connect Financial ETF and the GF Fund Hong Kong Stock Connect Non-Bank ETF rising by 1.36% and 1.01%, respectively [1] - Dividend strategy ETFs were active, with the Morgan Fund Hong Kong Dividend Index ETF and the Invesco Great Wall Fund Hong Kong Dividend Low Volatility ETF increasing by 1.3% and 1.15%, respectively [1] Specific Sector Declines - AI application sectors saw significant pullbacks, with gaming ETFs and Huatai-PB gaming ETFs both declining by 4% [1] - The cloud computing sector experienced widespread declines, with data ETFs and GF cloud computing ETFs both down by 5% [1] - The computing power sector also faced losses, with 5G ETFs and 5G communication ETFs dropping by 4.03% and 3.81%, respectively [1]

Core Viewpoint - The cloud gaming industry continues to lead the market, with significant gains in the information security and big data sectors, as evidenced by the performance of related ETFs [1] Group 1: ETF Performance - Several ETFs related to big data have shown a half-day increase of over 1%, with specific ETFs like the Information Security ETF (159613) and the Big Data Industry ETF (516700) rising by 1.59% and 1.51% respectively [2][3] - The Information Security ETFs (159613 and 562920) have small scales, with half-day trading volumes below 10 million yuan, tracking the CSI Information Security Theme Index [3] Group 2: Index Composition - The CSI Information Security Theme Index includes listed companies involved in information security technology, products, and services, reflecting the overall performance of securities in the information security sector [4] - Major stocks in the CSI Information Security Theme Index include Inspur Information (5.78%), Unisoc (5.39%), and Hikvision (5.02%) [5] Group 3: Big Data Sector - The Big Data Industry ETF (516700), Big Data ETF (515400), and Data ETF (516000) also experienced gains exceeding 1%, with the Big Data ETF (515400) having a large scale of 2.3 billion shares and a half-day trading volume of 96.73 million yuan [6] - The CSI Big Data Industry Index selects companies involved in big data storage, analysis, operations, and applications, reflecting the overall performance of securities in the big data sector [6][7] - Key stocks in the CSI Big Data Industry Index include iFlytek (9.23%), Inspur Information (8.72%), and Unisoc (6.22%) [7]

Group 1 - The A-share market opened slightly lower on May 26, but the CSI Big Data Industry Index saw a strong increase of 1.35%, with constituent stocks like China Great Wall rising by 3.69% and Shiji Information by 3.13% [1] - The Data ETF (516000) rose by 1.36%, reaching a latest price of 0.89 yuan, and has accumulated a 30.71% increase over the past year, ranking first among comparable funds [1] - The Data ETF experienced a turnover of 2.39% with a transaction volume of 9.9744 million yuan, and has seen continuous net inflows over the past three days, totaling 8.0574 million yuan [1] Group 2 - On May 25, the domestic CPU leader Haiguang Information announced a stock swap merger with the server giant Zhongke Shuguang, valued at 90.5 billion yuan, with both companies' A-shares suspended from trading starting May 26 [2] - The merger aims to optimize the industrial layout from chips to software and systems, enhancing the integration capabilities of Zhongke Shuguang and promoting the large-scale application of domestic chips in key industries [2] - Industry expert Jiang Guowen stated that a successful merger would create a full-chain capability of "chip + complete machine + computing power services" [2] Group 3 - The Data ETF (516000) and its linked funds closely track the CSI Big Data Industry Index, focusing on popular sectors such as DeepSeek, AI computing power, and the Hongmeng industrial chain, covering stocks like iFlytek and Zhongke Shuguang [3]

Core Viewpoint - The Zhongzheng Big Data Industry Index (930902) has shown strong performance, with significant increases in constituent stocks and a notable rise in the Data ETF (516000) [3][4]. Performance Summary - As of May 9, 2025, the Data ETF has achieved a net value increase of 35.62% over the past three years, ranking first among comparable funds [4]. - The Data ETF's highest single-month return since inception was 31.45%, with an average monthly return of 8.34% and a year-to-date profit percentage of 66.67% [4]. - The Data ETF has a Sharpe ratio of 1.05 for the past year, indicating the highest return for the same level of risk among comparable funds [4]. - The Data ETF has the lowest management fee rate of 0.50% and a custody fee rate of 0.10% among comparable funds [4]. Trading Activity - The Data ETF experienced a trading volume of 1.65% with a total transaction value of 6.96 million yuan on the latest trading day [3]. - Over the past week, the average daily transaction value for the Data ETF was 23.82 million yuan [3]. Fund Flows - The Data ETF has seen a net outflow of 1.87 million yuan recently, but it attracted a total of 11.64 million yuan over the last four trading days [3]. Index Composition - The top ten weighted stocks in the Zhongzheng Big Data Industry Index account for 50.19% of the index, with notable companies including iFlytek (002230) and Inspur Information (000977) [5][7].

Group 1 - The Shanghai Stock Exchange Sci-Tech Innovation Board Composite Index rose by 0.34%, with significant gains in constituent stocks such as Jingjin Electric, which hit the daily limit, and others like Xinxiangwei, China Electric Research, and Weidao Nano showing increases of 12.76%, 11.45%, and 10.78% respectively [1] - The Huaxia Sci-Tech Innovation Index ETF (589000) increased by 0.43%, with the latest price reported at 0.93 yuan [1] - The trading volume of the Huaxia Sci-Tech Innovation Index ETF reached 1.25 billion yuan, with a turnover rate of 3.38% [1] Group 2 - The Huaxia Sci-Tech Innovation Index ETF has achieved a recent scale of 3.693 billion yuan, leading among similar products [2] - Over the past 13 days, the Huaxia Sci-Tech Innovation Index ETF has seen continuous net inflows, with a peak single-day net inflow of 1.361 billion yuan, totaling 2.908 billion yuan in net inflows, averaging 224 million yuan daily [1] - The recent release of 70 demonstration scenarios for public data utilization aims to accelerate the development of data products and services, enhancing market-oriented operations in the data industry [2]