[Bidding to see the leader] On October 30, the market focus stock Qingdao Food (4 boards) opened higher by 9.98%, the robot concept stock Guangyang Co., Ltd. (4 boards) opened lower by 0.86%, Dongbei Group (3 boards) bid lowered, Yujing Shares (2 boards) opened lower by 3.84%, the short drama concept stock Cultural Investment Holdings (4 boards in 7 days) opened lower by 9.69%, and the medical sector Aoyang Health (2nd board) opened 4.47% higher, Oriental Ocean (4 days 2nd board) opened 5.06% higher, Shandong Mining Machinery (2nd board), whose performance exceeded expectations, opened 9.76% lower, Lianming Shares (2nd board) opened 7.62% lower, commercial aerospace concept stock Shanghai Hugong (2nd board) bid for the daily limit, and end-side AI concept stock Shifeng Culture (2nd board) opened 2.30% higher.