Optional in a conditional subsequence (C16
)
C17
This field specifies the designated maturities used for the interpolation of the rates in the last stub period.
Period From and Period To must contain one of the following codes (Error code(s): T48):
If a specific designated maturity is applicable for the stub period, the 'to' and 'from' values are the same.
If this field is not present and there are stub periods, the rate defaults to the Designated Maturity in field 38E in the same sequence.
For OIS trades, this field must not be used.
If the stub period is not an interpolation, the same information must appear in both subfields.