[Yongding Shares: Q3 net profit fell 30% month-on-month] On October 23, Yongding Shares (600105.SH) announced that its third-quarter revenue was 2.091 billion yuan, a year-on-year increase of 52.56%; net profit was 239 million yuan, a year-on-year increase of 2165.42%. Revenue in the first three quarters was 5.430 billion yuan, a year-on-year increase of 49.57%; net profit was 743 million yuan, a year-on-year increase of 125.75%. The change in performance was mainly due to the fact that during the reporting period, the optical communications sector was driven by the demand for AI computing power. The volume and price of the optical fiber market increased. Supply and demand in the entire industry chain were tight, and both volume and price increased. The gross profit margin increased, driving the company's total profit to grow significantly year-on-year. Xiaocai's note: The company's Q3 net profit was 239 million, and Q2 net profit was 345 million. Based on this calculation, Q3 net profit dropped 30% month-on-month.