> ## 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.

# Tranche

The **Tranche** store contains the description of a DRC Sec non-CTP tranche.

It is indexed by **Tranche**, **RiskClass**, and **AsOfDate**
and referenced from the [DRCBase](./drc-base) store by these three fields.

This store references the [DrcSecNonCtpBuckets](./drc-sec-non-ctp-buckets) store by **Region**, **Asset Class**, and **AsOfDate**.

| Store Field | Key | CanBeNull | Type              | Cube Field                                                            | Description                                                                     |
| ----------- | --- | --------- | ----------------- | --------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
| Tranche     | Y   |           | String            | [DRC Sec non-CTP Tranche](../../cube/drc-sec-non-ctp-tranche)         | ID of the Tranche                                                               |
| RiskClass   | Y   |           | String            |                                                                       | Set to "DRC Sec non-CTP"                                                        |
| Bucket      |     |           | String            | [DRC Sec non-CTP Bucket](../../cube/drc-sec-non-ctp-bucket)           | The DRC bucket.                                                                 |
| Seniority   |     |           | String            | [DRC Sec non-CTP Seniority](../../cube/drc-sec-non-ctp-seniority)     | Seniority of the tranche.                                                       |
| Rating      |     |           | String            | [DRC Sec non-CTP Rating](../../cube/drc-sec-non-ctp-rating)           | The credit rating of the Tranche                                                |
| Type        |     |           | String            | [DRC Sec non-CTP Rating Type](../../cube/drc-sec-non-ctp-rating-type) | The rating type used alongside the rating to determine the SEC-ERBA risk-weight |
| Region      |     |           | String            | [DRC Sec non-CTP Region](../../cube/drc-sec-non-ctp-region)           | The region used to determine the Bucket                                         |
| Asset Class |     |           | String            | [DRC Sec non-CTP Asset Class](../../cube/drc-sec-non-ctp-asset-class) | The asset class used to determine the Bucket                                    |
| Attachment  |     |           | Double            | [DRC Sec non-CTP Attachment](../../cube/drc-sec-non-ctp-attachment)   | Attachment point (Decimal values are expected)                                  |
| Detachment  |     |           | Double            | [DRC Sec non-CTP Detachment](../../cube/drc-sec-non-ctp-detachment)   | Detachment point (Decimal values are expected)                                  |
| RiskWeight  |     | Y         | Double            | DRC Sec non-CTP JTD Weightings Override measure                       | Optional override for the DRC Sec non-CTP Tranche risk-weight                   |
| AsOfDate    | Y   |           | Date\[yyyy-mm-dd] | See field in referencing store                                        | Timestamp (at close of business) for the data                                   |