[analysis of the daily limit at noon on May 31] A total of 29 shares rose by the daily limit of May 31 in the two markets, with a total of 7 shares and 16 shares failed to close the board, with a closure rate of 64% (excluding St shares, delisted shares and unopened new shares). Individual stocks, the strong brain-computer interface plate Hengqiang, concept stocks Xin Zhi cognitive board 4, innovative medical board 4, Jin Zitianzheng 2 board, Boxin shares 2 board. In addition, the game stock health 10 days 5 boards, consumer electronics plate Liding photoelectric 2 boards, CPO concept stocks Resconda 2 boards.