Sou Hu Cai Jing·2025-05-16 06:47Group 1 - The China Securities Big Data Industry Index (930902) decreased by 0.33% as of May 16, 2025, with mixed performance among constituent stocks [3] - Tianxiaxiu (600556) led the gains with an increase of 2.77%, while Taxfriend (603171) experienced the largest decline at 2.37% [3] - The Data ETF (516000) also fell by 0.33%, closing at 0.91 yuan, but has seen a cumulative increase of 1.44% year-to-date, ranking in the top third among comparable funds [3] Group 2 - The Data ETF had a turnover rate of 2.32% during the trading session, with a total transaction volume of 9.6766 million yuan [3] - Over the past year, the average daily transaction volume for the Data ETF was 16.8495 million yuan [3] - The latest share count for the Data ETF reached 455 million, marking a one-month high [3] Group 3 - The Data ETF recorded a net inflow of 6.4383 million yuan recently, accumulating a total of 19.9569 million yuan over the last eight trading days [3] - On May 15, Huawei announced a product launch event for the nova 14 series and the first HarmonyOS computer, scheduled for May 19 [3] Group 4 - As of April 30, 2025, the top ten weighted stocks in the China Securities Big Data Industry Index accounted for 50.19% of the index, with iFlytek (002230) having the highest weight at 8.49% [4] - Other significant stocks include Zhongke Shuguang (603019) at 8.32% and Unisplendour (000938) at 6.40% [4][6]