2 1 Shi Ji Jing Ji Bao Dao·2025-05-26 03:32Group 1 - The Shanghai Composite Index turned positive on May 26, with the Sci-Tech Innovation Index rising by 0.28%, driven by stocks like Kejie Intelligent and Zhongyou Technology, which saw significant gains [1] - The Tianhong Sci-Tech Innovation Index ETF (589860) reported a trading volume exceeding 48 million yuan and a turnover rate of over 5.7%, indicating active trading [1] - The Tianhong ETF experienced a net inflow of 14.73 million yuan on May 23, reflecting investor interest in the Sci-Tech Innovation Index [1] Group 2 - The overall profitability of companies listed on the Sci-Tech Innovation Board is continuously improving, with over 80% of these companies concentrated in high-tech and strategic emerging industries [2] - The average R&D investment of Sci-Tech Innovation Board companies reached 12.64% of their operating income in 2022, totaling 168.08 billion yuan, which is 2.5 times their net profit [2] - Companies with high R&D investment ratios are primarily found in sectors with high technical barriers and long R&D cycles, such as biomedicine, semiconductors, and artificial intelligence [2]