A500指数半日涨超1%，资金交投活跃，A500ETF易方达（159361）净申购超4000万份

Group 1 - The core viewpoint of the news indicates that the A-share market is expected to experience a significant upward trend after the Spring Festival, driven by policy expectations, liquidity support, and industrial trends [1] - The A500 index rose by 1.4%, the A100 index increased by 1.5%, and the A50 index saw a rise of 1.6% at midday, indicating active trading in the market [1][3] - The A500 ETF from E Fund recorded a trading volume of approximately 2.5 billion yuan and received over 40 million net subscriptions [1] Group 2 - The A500 index consists of 500 securities with large market capitalization and good liquidity, covering 89 out of 93 sub-industries [3] - The A100 index is composed of 100 representative securities with large market capitalization, reflecting the overall performance of core leading companies in the market [3] - The A50 index includes the 50 largest stocks from various industries, showcasing a balanced distribution across 50 sub-industries with a focus on large-cap stocks [3]