Various methods for constructing a model for a firm to repurchase stock of the firm are disclosed. The method may include estimating stock repurchase needs for the firm for at least a portion of a fiscal period; calculating a base stock repurchase amount associated with at least one trading period included within the fiscal period portion; calculating a base stock repurchase price associated with the stock of the firm; and constructing a stock repurchase model for generating an amount of stock to repurchase during the fiscal period portion based on the calculated base stock repurchase amount and the calculated base stock repurchase price.