Which interest calculation methods does the software support?

When creating a new emission, you will always need to select an interest calculation method. In portagon go, you have four different methods to choose from. The following table compares these methods and their characteristics:

ISDA Actual/360 - Eurozins method

• • Accurate determination of interest days based on the calendar year having 365 or 366 days.
  • A year is assumed to have 360 interest days (not day-accurate).
  • The first investment day is subject to interest, while the last investment day is not.

ISDA Actual/365

• • Accurate determination of interest days based on the calendar year having 365 or 366 days.
  • A year is assumed to have 365 interest days (not day-accurate).
  • The first investment day is not subject to interest, while the last investment day is subject to interest.

ISDA Actual/Actual - Day-Count or Effective Interest Method

• • Accurate determination of interest days based on the calendar year having 365 or 366 days.
  • A year is assumed to have the exact number of days (365 or 366) for interest calculation.
  • The first investment day is not subject to interest, while the last investment day is subject to interest.

ISDA 30E/360 (Eurobond Basis)

• • The interest month is assumed to have a fixed 30 days, meaning the calendar year has 360 interest days.
  • Exception: February is considered to have 28 or 29 days, depending on whether the period start or end falls on one of these days.
  • A year is assumed to have 360 interest days (not day-accurate).
  • The first investment day is not subject to interest, while the last investment day is subject to interest.

	ISDA Actual/360 (Eurozins method)	ISDA Actual/365	ISDA Actual/Actual	ISDA 30E/360 (Eurobond Basis)
Zinstage	calendar-accurate 365 or 366 days	calendar-accurate 365 or 366 days	calendar-accurate 365 or 366 days	interest month: 30 Tage year: 360 days
Ausnahmen	-	-	-	Exception: February, calendar-accurate 28 or 29, if period start or end falls on one of these days
Basisjahr	360 days	365 days	calendar-accurate 365 or 366 days	360 days
Verzinsung erster Anlagetag	yes	no	no	no
Verzinsung letzter Anlagetag	no	yes	yes	yes