Tranche

The Tranche (Underlying) refers to the tranche credit spread curves (bond and CDS) [MAR21.10](2).

Key Field Key Description
As-of Date Y Timestamp (at close of business) for the data (T-1)
Tranche Name (Underlying) Y Name of the tranche credit spread curve
Risk Class Y “CSR Sec non-CTP”
Bucket 1-25
Credit Quality e.g. “Senior IG”, “IG”, “HY”, or “NR”
Sector The relevant sector of the asset pool
Pool The asset pool
Attachment The attachment point of the tranche in the pool
Detachment The detachment point of the tranche in the pool