In a 2-for-1 stock split, the corporation issues an additional share of stock to the shareholder for each share the shareholder owns. You now own 200 shares, but your total basis is still $1,500. Following the stock split, you must reallocate your basis between the original shares and the shares newly acquired in the stock split. STOCK SPLITS: Here is an example of how to record a stock split. Assume that you bought 100 shares of IBM on 4/2/2000 for $2000.00 On 5/2/2001, IBM declared a four for one stock split and you received 300 additional shares. Your original cost basis for 100 shares was $20.00 per share, total cost $2,000.00 There are two types of stock splits: forward and reverse. The most common is a forward split, where a company splits its stock into smaller pieces. Splits are denoted in ratios. For example, a two for one split is shown as 2:1. For example, if you have 100 shares of Intel stock, worth $100 a share, you get 200 shares worth $50 each in a 2:1