COUPNUM

COUPNUM(settlement, maturity, frequency [,basis])

Returns the number of coupons between the settlement date and the maturity date.

settlement	The settlement date of the security.
maturity	The maturity of the security.
frequency	The number of coupon payments in a year: 1 = annual 2 = semi annual 4 = quarterly
basis	(Optional) The type of day counting to use. 0 = 30/360 (default, US convention) 1 = Actual/Actual 2 = Actual/360 3 = Actual/365 4 = 30/360 (European convention)

REMARKS

* The number returned from this function is always rounded up the nearest whole number.
* The "settlement" is the date a buyer purchases a coupon, such as a bond.
* The "maturity" is the date when the security expires.
* If "settlement" >= "maturity", then #NUM! is returned.
* If "settlement" is not an integer, it is truncated.
* If "settlement" is not a valid date, then #NUM! is returned.
* If "maturity" is not a valid date, then #NUM! is returned.
* If "maturity" is not an integer, it is truncated.
* If the "maturity" date has passed, then #VALUE! is returned.
* If "frequency" is not an integer, it is truncated.
* If "frequency" is any number other than 1, 2 or 4, then #NUM! is returned.
* If "basis" is left blank, then 0 is used.
* If "basis" is not an integer, it is truncated.
* If "basis" < 0, then #NUM! is returned.
* If "basis" > 4, then #NUM! is returned.
* You can use the COUPDAYBS function to return the number of days between the previous coupon date and the settlement date.
* You can use the COUPDAYS function to return the number of days between the coupon dates on either side of the settlement date.
* You can use the COUPDAYSNC function to return the number of days between the settlement date and the next coupon date.
* You can use the COUPNCD function to return the next coupon date after the settlement date.
* You can use the COUPPCD function to return the previous coupon date before the settlement date.
* For the Microsoft documentation refer to support.microsoft.com

	A
1	=COUPNUM("1/25/1998", "11/15/1999", 2, 1) = #VALUE!