> ## 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.

# Risk factor [MAR10.9]

The **Risk Factor** is used to identify [sensitivities](./sensitivities).
However, it is not used directly in the calculations, instead the **[Equity](./equity)**, **Type**, and tenor fields are used (as appropriate for the risk-measure).
This means that multiple **Risk Factor Names** may be used for the same risk-factor.

| Field                    | Key | Risk Measure | Description                                                                              |
| ------------------------ | --- | ------------ | ---------------------------------------------------------------------------------------- |
| As-of Date               | Y   | All          | Timestamp (at close of business) for the data (T-1)                                      |
| Risk Factor Name         | Y   | All          | A name for the risk-factor                                                               |
| Risk Class               | Y   | All          | “Equity”                                                                                 |
| Risk Measure             | Y   | All          | “Delta”, “Vega”, or “Curvature”                                                          |
| Option Maturity          |     | Vega         | The maturity of the option                                                               |
| Equity Name (Underlying) |     | All          | Name of the equity or equity issuer (see [interpretation note](../interpretation-note)). |
| Type                     |     | All          | “Spot” or “Repo”.                                                                        |

For Vega and Curvature, the risk-factor is the same as the underlying.