US Patent 7337141 Hedging employee stock options

An efficient process, from both a regulatory and tax perspective, for individuals to hedge employee stock options. No margin is required for a listed call option written on an equity security when the account holds a “long” position in a vested employee stock option which can be immediately exercised without restriction (not including the payment of money) to purchase an equal or greater quantity of the security underlying the listed option provided that the vested employee stock option does not expire before the short listed call option, and provided that the amount (if any) by which the exercise price of the vested employee stock option exceeds the exercise price of the short listed call option is held in or deposited to the account.