[Market Movement Analysis] Ultrasonic Electronics plunged on September 18: Nvidia certification rumor clarified, previous large gains, main funds net outflow

1. According to the abnormal fluctuation announcement on September 13, 2026, the company clarified that the rumor about its high-frequency boards being certified by NVIDIA is not true. Currently, there are no products being supplied to NVIDIA, and the supporting PCBs for 800G and 1.6T optical modules are still in the R&D follow-up stage, with no large-scale supply achieved yet.
2. According to data from iFinD, the company's stock rose by 29.52% and 64.87% in the previous 5 and 20 trading days respectively, resulting in a large short-term increase and profit-taking in the share price.
3. According to data from iFinD, as of 9:55 a.m. on September 18, 2026, the net outflow of main funds from the company today was 199 million yuan, with relatively weak capital support during the session.

(Disclaimer: This content is automatically generated by AI technology based on publicly available information and is for reference only. It does not constitute investment advice. Please refer to listed company announcements for official information.)