Organizations undertake stock splits when it is perceived within the firm that shares of the company are traded at a too high price and this may slow down trading activity. If a stock split is undertaken, the market value of shares can slightly increase. Such increase tends to be maintained as long as dividends after the split also increase.
If a firm undertakes a 2 for 1 split than 2 new shares will be given in exchange for every 1 old share. The stock split does not affect the organizational capital structure.
Organizations can also do reverse stock splits when firm wants to increase the share price. Increase in share price may help to enhance trading of a shares activity. This occurs because unsophisticated investors tend to equate low priced stocks to low quality investments.
If firm undertakes a 1 for 2 split, one new share will be exchanged for 2 old shares.