Patent US 8,090,639

A warrant on company stock that is used to determine value of employee options for U.S. accounting purposes on company stock. The warrant comprises an amortization factor, an exercise term that is the same or substantially similar to an exercise term of the employee options, and a strike price that is the same or substantially similar to a strike price of the employee options. The warrant also comprises a provision to periodically determine the amortization factor based on early forfeiture and/or early exercise of the employee options, a provision to apply the amortization factor to the warrants; and a provision to determine an intrinsic value of the warrants. Value of the employee options for U.S. accounting purposes is determined using market value of the warrants at issue.