A stock split is a method by which a company increases the number of its shares outstanding. A stock split leads to a fall in the price per share of the company. A stock split does not have any effect on the market capitalisation of a firm.
A five for one split means that for every one stock a shareholder owns, it is multiplied by 5
Number of stocks a shareholder has after a 5-for-1 stock split = 5 x number of stocks the shareholder had before the split
