[Bidding to see the leader] On October 12, the market focus stock Xinhua Media (9 boards) opened at the bidding limit, PCB concept stock Aohong Electronics (9 boards in 15 days) opened 6.32% lower, network security concept stock Zhongxinseike (8 boards in 16 days) opened 3.54% higher, media sector Xinhua Wenxuan (7 boards in 10 days) opened 2.15% higher, Decai Shares (2 boards in 3 days) Bidding reached the daily limit. The battery industry chain's Era Wanheng (5th board) opened 6.12% higher, Zizhu Hi-Tech (4th board) opened 3.85% lower, and Lingpai Technology (GEM 2nd board) opened 1.76% lower. The robot concept stock Joyoung (5th board) opened at the bidding limit, Hongdou Shares (2nd board) opened 2.01% lower, and the coal sector Antai Group (2nd board) opened 0.26% lower.