Using the adjustment frequency, you specify the intervals at which the system should check a condition during index adjustment to see if it should be adjusted. Here you can specify how the frequency is interpreted:
Fixed The adjustment is performed only at fixed points in time (adjustment dates). These dates are determined using the date of the last adjustment (or first adjustment) and the adjustment frequency. Adjustmenttakes place only if the other conditions specified in the rule (minimum increase in index points) are fulfilled. Otherwise, the system checks the condition after another period, based on the frequency, to see if it can be adjusted. If it can be, the adjustment is made. If an adjustment delay was entered for a fixed adjustment frequency, then the adjustment is performed on a fixed date anyway. The adjustment is then made using an old index level, with the number of months specified in the adjustment delay subtracted from the adjustment date to determine this index level (positive adjustment delay). Or the adjustment is effective retroactively using an index level after the adjustment date (negative adjustment delay).
Earliest The condition is adjusted, at the earliest, on the date determined by the date of the last adjustment (or first adjustment) and the adjustment frequency. It might not be possible to adjust the condition on this date if all other requirements of the rule are not fulfilled. In that case, the system checks the condition again on each subsequent possible date to see if it can be adjusted, and adjusts it if possible.
Latest If the system could not perform the adjustment before the date determined in this way, then it performs the adjustment on this date, even if all other requirements of the rule (such as minimum change to the index points) are not fulfilled.