海南自贸区概念股，集体爆发

Core Viewpoint - The A-share market experienced a slight upward trend in early trading, with all three major indices showing small gains, indicating a mixed sentiment among investors [1] Market Performance - The Shanghai and Shenzhen markets recorded a half-day trading volume of 1.12 trillion, a decrease of 23 billion compared to the previous trading day [1] - Over 3,900 stocks in the market saw an increase, reflecting a generally positive market sentiment [1] Sector Analysis - The Hainan Free Trade Zone concept stocks surged collectively, with nearly 20 stocks, including Hainan Airport, hitting the daily limit [1] - Super water power concept stocks rebounded from a low point, with stocks like Tibet Tianlu also reaching the daily limit [1] - Rare earth permanent magnet concept stocks strengthened again, with Zhongke Sanhuan hitting the daily limit [1] - The sectors with the highest gains included Hainan Free Trade Zone, lithium mining, rare earth, and super water power, while sectors like precious metals, banking, CPO, and pork saw declines [1] Index Performance - By the end of trading, the Shanghai Composite Index rose by 0.48%, the Shenzhen Component Index increased by 0.65%, and the ChiNext Index gained 0.72% [1]