[analysis of midday trading on May 29] A total of 33 shares rose by the daily limit of May 29 in the two markets, with a total of 10 shares and 15 shares failed to close the board, with a closure rate of 69% (excluding St shares, delisted shares and unopened new shares). In terms of individual stocks, robot plate Ruineng technology 7 board, Keli sensor 7-day 4 board, Jintuo stock 6-day 3 board, electric power stock Hengsheng energy 4 board, Shimao energy 3-day 2 board, arithmetic plate Jinbaize gem board 3 board, Hongbo stock 3 board, brain-computer interface concept stock new intelligence cognition board 2 board, innovative medical board 2 board.