拓尔思跌2.01%，成交额1.10亿元，主力资金净流出1604.23万元

Core Insights - The stock price of Tuolisi has decreased by 2.01% on October 16, reaching 20.47 CNY per share, with a total market capitalization of 17.883 billion CNY [1] - The company has experienced a year-to-date stock price decline of 2.24%, with a significant drop of 9.78% over the last five trading days [1] - Tuolisi's main business segments include artificial intelligence products and services (44.49% of revenue), big data products and services (33.73%), security products (11.07%), and system integration and others (10.70%) [2] Financial Performance - For the first half of 2025, Tuolisi reported a revenue of 245 million CNY, a year-on-year decrease of 38.36%, and a net profit attributable to shareholders of -73.6312 million CNY, representing a 223.11% decline [2] - The company has distributed a total of 325 million CNY in dividends since its A-share listing, with 55.6704 million CNY distributed over the past three years [2] Shareholder Structure - As of June 30, 2025, the top ten circulating shareholders include Hong Kong Central Clearing Limited as the third-largest shareholder, holding 6.3563 million shares, a decrease of 1.5779 million shares from the previous period [3] - Southern CSI 1000 ETF and other ETFs have increased their holdings, indicating a shift in institutional investment [3]