> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# UnderlyingDescription

The **UnderlyingDescription** store contains the description of the [underlying](../data-model-core/underlying).

The following table lists the fields in the store that are used for the CSR Sec CTP risk-class.
See the [UnderlyingDescription](../../../../../../datastore/standardisedapproach/underlying-desc) store documentation for details on the store.

| Data Model Field | Store Field | Notes         |
| ---------------- | ----------- | ------------- |
| As-Of Date       | AsOfDate    |               |
| Underlying Name  | Underlying  |               |
| Risk Class       | RiskClass   | “CSR Sec CTP” |
| Bucket           | Bucket      |               |
| Credit Quality   | CSRQuality  |               |
| Sector           | CSRSector   |               |