DEVELOP(SH:688377) Xin Lang Cai Jing·2026-02-02 05:37Group 1 - The stock price of Diwei Er fell by 5.17% to 40.36 CNY per share, with a trading volume of 54.11 million CNY and a turnover rate of 0.67%, resulting in a total market capitalization of 7.857 billion CNY [1] - Diwei Er, established on August 19, 2009, and listed on July 8, 2020, is located in Jiangbei New District, Nanjing, Jiangsu Province, and specializes in the research, production, and sales of oil and gas equipment components [1] Group 2 - Ping An Fund holds a significant position in Diwei Er, with its fund "Ping An Research Selected Mixed A" (021576) reducing its holdings by 10,900 shares in the fourth quarter, now holding 12,200 shares, which accounts for 4.62% of the fund's net value, ranking as the sixth-largest holding [2] - The fund "Ping An Research Selected Mixed A" has a current scale of 1.9319 million CNY, with a year-to-date return of 7.35%, ranking 3009 out of 9000 in its category, and a one-year return of 49.76%, ranking 2067 out of 8193 [2] - The fund manager, Zhang Yinxian, has been in position for 2 years and 103 days, with total assets under management of 1.783 billion CNY, achieving a best return of 97.23% and a worst return of 47.48% during his tenure [2]