[Bidding to see the leader] On September 17, the market focus stock Mindong Electric Power (6 boards) opened lower by 9.96%, PCB concept stocks Aohong Electronics (4 boards) opened higher by 6.02%, Xilong Science (2 boards) opened higher by 7.33%, Bezi Technology (2 boards) opened higher by 3.81%, optical fiber sector Huamai Technology (8 days and 4 boards) opened higher by 2.45%, Tongding Internet (2nd board) opened 0.12% higher, equity transfer Bohui Technology (3rd board of Science and Technology Innovation Board) opened 4.35% higher, rice wine sector Kuaijishan (3rd board in 6 days) opened 0.11% higher, chip industry chain Zhongjing Technology (2nd board) opened at the daily limit, Del Future (2nd board) opened 1.25% lower, and wind power sector Xihua Technology (2nd board) opened 3.69% lower.