科创50大涨4%，海光信息涨停

Group 1 - The core viewpoint of the article highlights a significant increase in the ChiNext 50 ETF (588000), which rose by 4.92%, with a notable stock, Haiguang Information, surging by 20% and hitting the daily limit [1] - GF Securities recommends maintaining a focus on the technology sector, asserting that the market has established a "bull market mentality," making it difficult to reverse the trend once formed [1] - Since late June, changes in four funding pools have occurred, initiating a positive spiral of "capital inflow - profit effect - capital inflow" [1] Group 2 - The ChiNext 50 ETF (588000) tracks the ChiNext 50 Index, with 68.77% of its holdings in the electronics sector and 9.85% in the pharmaceutical and biological sector, totaling 78.62% concentrated in these industries [1] - The index also covers various sub-sectors, including medical devices, software development, and photovoltaic equipment, indicating a high level of hard technology content [1] - The current position of the ChiNext 50 Index is near its base points, and based on historical trends of the ChiNext, the future growth potential is promising [1]