[Bidding to see the leader] On November 2, the market focus stock Qingdao Food (5 boards) opened higher by 3.31%, the medical sector Oriental Ocean (4 boards in 8 days) opened higher by the bidding limit, Aoyang Health (3 boards) opened higher by 5.08%, the commercial aerospace concept stock Shanghai Hugong (3 boards) opened higher by 8.26%, Sunshine Lighting (2 boards) opened higher by the bidding limit, Shengyang Technology (2nd board) opened 5.94% higher, Guilin Sanjin (2nd board), whose performance exceeded expectations, opened at the daily limit, Chuanzhi Education (2nd board) opened 7.43% higher, BiEwe (Science and Technology Innovation Board, 2nd board in 3 days) opened 1.79% lower, large consumer sector Babi Food (2nd board) opened flat, and PCB concept stock Jinan Guoji (3rd day, 2nd board) opened 2.83% higher.