Today, the sse science and technology innovation board 50 index closed up by 0.04% at 667.34 points. There are no obvious hot spots in the market, with only 9 individual stocks having price fluctuations greater than 5%. Influenced by yesterday's merger announcement, SlinJay 20CM hit the limit up, while Waymes rose by over 6%. The biomedical and medical instruments sectors performed actively, with Kangweishiji rising by over 8%, Yifang Biotechnology up over 5%, Shanghai Sanyou Medical increasing by nearly 5%, and Aotec Biological, Youcare Pharmaceutical Group, etc., all rising. The semiconductor industry chain collectively rose, with PCB concept stock Shenzhen Yanmade Technology Inc. up by over 8%, BiYiWei rising by over 5%, memsensing microsystems(suzhou, china)co.,ltd., 3peak incorporated, and others rising.