Function SecurityCouponNumber(SettlementDate, MaturityDate, Frequency)


The function SecurityCouponNumber returns the number of coupons from settlement date and maturity date of a security that pays interest at the end of each coupon period.

    SettlementDate,           ! (input) scalar string expression
    MaturityDate,             ! (input) scalar string expression
    Frequency,                ! (input) numerical expression



The date of settlement of the security. SettlementDate must be in date format.


The date of maturity of the security. MaturityDate must also be in date format and must be a date after SettlementDate.


The number of coupon payments in one year. Frequency must be 1 (annual), 2 (semi-annual) or 4 (quarterly).

Return Value

The function SecurityCouponNumber returns the number of coupon payments from the settlement date until the maturity date.


The function SecurityCouponNumber is similar to the Excel function COUPNUM.

See also

Day count basis methods. General equations for securities with multiple coupons.