A series of selections that the seller of a FUTURES contract on a US BOND can make that can increase the value of the contract. The delivery options include the quality option (ability to select a specific bond for DELIVERY), the wildcard option (ability to delay announcement of intent to deliver for a period of up to several hours), the ACCRUED INTEREST option (ability to deliver a security with a particular amount of accrued interest), and the endofmonth option (ability to use closing futures prices seven days before month end and deliver the bond at month end).