Core Insights - The social security fund has disclosed its stock holdings for the second quarter, appearing in the top ten shareholders of six stocks on the Sci-Tech Innovation Board, with a total holding of 20.43 million shares valued at 1.063 billion yuan [1][2] Group 1: Stock Holdings - The social security fund increased its holdings in four stocks and maintained its position in one stock, while entering one new stock [1] - The stock with the highest holding ratio is Nanwei Medical, accounting for 4.89% of the circulating shares, followed by Zhongchumei at 3.45% [1] - The total market value of the holdings is led by Nanwei Medical at 620 million yuan, followed by Yingshi Network at 136.73 million yuan and Zhongchumei at 92.096 million yuan [1][2] Group 2: Performance Metrics - Among the stocks held by the social security fund, six reported year-on-year net profit growth in the first half of the year, with the highest growth seen in Rongzhi Rixin at 2063.42% [1] - The average increase in the share prices of the stocks held by the social security fund since July is 23.86%, with Dingtong Technology showing the highest cumulative increase of 63.30% [2] - Other notable stock performances include Nanwei Medical and Rongzhi Rixin, which increased by 41.88% and 19.35%, respectively [2]