ninja1024

The bonus is more like stock dividends, rather than stock split, but the same applies to both stock splits and stock dividends: consider the shares resulted from the split or the dividends as active at the beginning of the period (year or operating cycle, whichever is longer).
The major difference between stock splits and dividends is that a split increases the number of shares, decreases the value of each individual share, without changing the total value of equity, while a stock dividend increases the number of shares outstanding and the total value of equity, without changing the value of an individual share.