Today, the Science Innovation 50 Index closed down 0.51% to 734.85 points. On the market, the power grid equipment sector is booming. Weiteng Electric rose more than 16%, Jinguan Electric rose more than 4%, and Hangzhou Colin and Xinfengguang followed suit. The biomedical sector showed active performance. Olin Biotech rose more than 13%, Kangwei Century rose more than 11%, and Yakang Biotech and Rongchang Biotech followed suit. The semiconductor sector had mixed ups and downs. Juquan Technology rose more than 5%, Zhenlei Technology rose more than 4%; Aisen shares fell more than 4%, and Shengke Communications and Helin Weina fell more than 3%. The high-speed connector concept is still sluggish, and Huafeng Technology has fallen by more than 8%.