三大股指集体高开！沪指高开0.43%，续创年内新高

Core Viewpoint - The A-share market indices opened higher on August 18, reaching new highs for the year, indicating positive market sentiment and investor confidence [1] Group 1 - The Shanghai Composite Index opened at 3712.5 points, up by 0.43% [1] - The Shenzhen Component Index and the ChiNext Index also saw increases, with gains of 0.21% and 0.23% respectively [1] - Overall, the three major A-share indices continued to show upward momentum, reflecting a strong performance in the market [1]