Patent ID: 8010436

Claim:
A share sale assurance computer-implemented method, comprising: receiving collateral security data including a collateral security issue price and a collateral security issue-date stock price, as well as variable share forward-contract data including a variable-share forward-contract maturity date; generating a variable-share determination trigger through a comparison of a current date to the variable-share forward-contract maturity date; determining a current stock price derived from current market data or an average historical stock trading price in accordance with the variable-share forward-contract data; calculating, via a computer, a number of shares associated with the variable-share forward-contract as a product of a ratio of the collateral security issue price to the collateral security issue-date stock price and a multiplier derived from a ratio of the collateral security issue-date stock price to the determined current stock price; and executing a transaction for the calculated number of shares associated with a variable-share forward-contract identified in the variable-share forward-contract data.