[analysis of the daily limit at noon on June 19] A total of 32 shares rose by the daily limit of June 19 in the two markets, with a total of 6 shares and 18 shares failed to close the board, with a closure rate of 64% (excluding St shares, delisted shares and unopened new shares). In terms of individual stocks, optical communications plate Huaxi shares 6 days 5 boards, Optical Xun Technology 4 days 3 boards, Yi Tian shares growth Enterprise Board, Robot concept stocks Dalide 4 boards, artificial intelligence plate Dingjie Software growth Enterprise Board 2 boards, Runda Medical Board 2 boards.