沪指半日涨0.12%，冲击四连涨，A500ETF易方达(159361)、沪深300ETF易方达(510310)等助力布局核心资产

Group 1 - The A-share market saw all three major indices rise collectively, with the Shanghai Composite Index increasing by 0.12%, marking a potential four-day rally, and over 2,700 stocks in the market showing gains [1] - In terms of sector performance, the CPO, optical chips, and optical communication sectors led the gains, while cultural media, short drama games, catering and tourism, and banking sectors experienced declines [1] - The ChiNext Index rose by 1.2%, while the CSI 300 Index increased by 0.2%, and the STAR Market 50 Index saw a rise of 0.6%. Conversely, the Hang Seng China Enterprises Index fell by 1.0% [1] Group 2 - The ChiNext Index is composed of 100 stocks from the ChiNext market that have large market capitalization and good liquidity, with a high proportion of strategic emerging industries, particularly in power equipment, communication, and electronics [3] - The STAR Market 50 Index consists of 50 stocks from the STAR Market with large market capitalization and good liquidity, prominently featuring "hard technology" leaders, with over 65% in semiconductors and a combined 80% in medical devices, software development, and photovoltaic equipment [3]