[April 21 limit analysis] Today, a total of 11 shares rose by the daily limit, with a total of 2 shares with a total of 11 shares failed to seal the board, with a closure rate of 50% (excluding St shares, delisted shares and unopened new shares). In terms of individual stocks, the performance exceeded expectations + the Tieke Railway Science Board 2, the Golden Eagle heavy Industry growth Enterprise Board, the data element plate China Publishing Board 2, and the CPO concept stock Yongding shares 4 days 2 boards. Today, there were 556 stocks up and 4371 stocks down.