Documentation/How Tos/Calc: COUPDAYS function
From Apache OpenOffice Wiki
COUPDAYS
Returns the number of days in the coupon period that contains the settlement date.
This function is only available if the Analysis AddIn is installed.
Syntax:
COUPDAYS(settlement; maturity; frequency; basis)
- settlement: the date of purchase of the security.
- maturity: the date on which the security matures (expires).
- frequency: number of interest payments per year (1, 2 or 4).
- basis: is chosen from a list of options and indicates how the year is to be calculated. Defaults to 0 if omitted.
- 0 - US method (NASD), 12 months of 30 days each
- 1 - Exact number of days in months, exact number of days in year
- 2 - Exact number of days in month, year has 360 days
- 3 - Exact number of days in month, year has 365 days
- 4 - European method, 12 months of 30 days each
Example:
COUPDAYS("2001-01-25"; "2001-11-15; 2; 4)
- returns 180. A security is purchased on 2001-01-25; the date of maturity is 2001-11-15. Interest is paid half-yearly (frequency is 2). Using basis 4, there are 180 days (= 6 * 30) in the interest period in which the settlement date falls.
See also:
Issues:
- Both Calc and Excel can return a non-integer number of days (including a fraction) - for example COUPDAYS("2001-01-25"; "2001-11-15; 2; 3) returns 182.5 (= 365/2).
