Group 1: Investment Activities - Dong Chengfei's private fund, Ruijun Asset, has newly invested in two companies: Yangjie Technology and Tubao, while reducing holdings in Chipon Micro [1][2][3] - Yangjie Technology was added to the top ten circulating shareholders list with a purchase of 2.5533 million shares, valued at approximately 133 million yuan, representing 0.47% of circulating shares [2] - Tubao was also newly acquired, with 6.068 million shares held, valued at around 59 million yuan, making it the ninth largest circulating shareholder [3] Group 2: Company Performance - Yangjie Technology reported a revenue of 3.455 billion yuan in the first half of the year, a year-on-year increase of 20.58%, and a net profit of 601 million yuan, up 41.55% [2] - Tubao's revenue for the first half was 3.634 billion yuan, a decrease of 7.01%, while its net profit rose by 9.71% to 268 million yuan [3][4] - Chipon Micro achieved a revenue of 636 million yuan, a year-on-year increase of 40.32%, and a net profit of 90 million yuan, up 106.02% [4] Group 3: Market Performance - Yangjie Technology's stock price has increased approximately 34% year-to-date, recovering from a drop to 37.59 yuan per share in April to around 58 yuan per share [2] - Tubao's stock price has decreased by about 8.8% year-to-date [4] - Chipon Micro's stock price has risen approximately 47% year-to-date [4]