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

# Volatility of Volatility (DVol Index)

> This endpoint returns the Deribit "DVol" index and the associated 30-day rolling volatility of that index. This is a good measure of the volatility of volatility. The volatility of volatility method is calculated using the close-to-close volatility.



## OpenAPI

````yaml get /analytics/volatility/volatility-of-volatility
openapi: 3.1.0
info:
  title: derivatives-api
  version: '2'
servers:
  - url: https://api.amberdata.com/markets/derivatives
security:
  - sec0: []
paths:
  /analytics/volatility/volatility-of-volatility:
    get:
      summary: Volatility of Volatility (DVol Index)
      description: >-
        This endpoint returns the Deribit "DVol" index and the associated 30-day
        rolling volatility of that index. This is a good measure of the
        volatility of volatility. The volatility of volatility method is
        calculated using the close-to-close volatility.
      operationId: derivatives-volatility-index-volatility-of-volatility
      parameters:
        - name: currency
          in: query
          description: >-
            **[Optional]** The underlying currency for which to retrieve the
            volatility index. 

            **[Examples]** `BTC | SOL_USDC`  

            Note: inverse options have underlying currencies formatted as (BTC,
            ETH) while linear option currency formats include the stable coin in
            the same  (SOL_USDC)
          required: true
          schema:
            type: string
            default: BTC
        - name: timeFormat
          in: query
          description: >-
            **[Optional]** Time format of the timestamps in the return payload.

            **[Defaults]** `milliseconds | ms* | iso | iso8601 | hr |
            human_readable`
          schema:
            type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: integer
                    example: 200
                  title:
                    type: string
                    example: OK
                  description:
                    type: string
                    example: Successful request
                  payload:
                    type: object
                    properties:
                      data:
                        type: array
                        items:
                          type: object
                          properties:
                            timestamp:
                              type: integer
                              example: 1723507200000
                              description: The timestamp of the data in milliseconds
                            closeDvol:
                              type: number
                              example: 57.47
                              description: The closing value of the Deribit DVol index
                            volVol30:
                              type: number
                              example: 92.4
                              description: >-
                                The 30-day rolling volatility of the DVol index
                                (volatility of volatility)
              examples:
                Result:
                  value:
                    status: 200
                    title: OK
                    description: Successful request
                    payload:
                      data:
                        - timestamp: 1723507200000
                          closeDvol: 57.47
                          volVol30: 92.4
                        - timestamp: 1723420800000
                          closeDvol: 57.13
                          volVol30: 94.5
                        - timestamp: 1723334400000
                          closeDvol: 56.29
                          volVol30: 96.3
                        - timestamp: 1723248000000
                          closeDvol: 55.02
                          volVol30: 96.1
                        - timestamp: 1723161600000
                          closeDvol: 56.79
                          volVol30: 95.9
                        - timestamp: 1723075200000
                          closeDvol: 60.87
                          volVol30: 92.6
                        - timestamp: 1722988800000
                          closeDvol: 61.53
                          volVol30: 92.4
                        - timestamp: 1722902400000
                          closeDvol: 63.09
                          volVol30: 93.3
                        - timestamp: 1722816000000
                          closeDvol: 56.11
                          volVol30: 85.1
                        - timestamp: 1722729600000
                          closeDvol: 51.46
                          volVol30: 80.4
                        - timestamp: 1722643200000
                          closeDvol: 51.39
                          volVol30: 81.9
                        - timestamp: 1722556800000
                          closeDvol: 49.8
                          volVol30: 84.5
                        - timestamp: 1722470400000
                          closeDvol: 48.73
                          volVol30: 86.8
                        - timestamp: 1722384000000
                          closeDvol: 50.61
                          volVol30: 85.8
                        - timestamp: 1722297600000
                          closeDvol: 51.73
                          volVol30: 86.4
                        - timestamp: 1722211200000
                          closeDvol: 52.66
                          volVol30: 87.7
                        - timestamp: 1722124800000
                          closeDvol: 55.05
                          volVol30: 88.5
                        - timestamp: 1722038400000
                          closeDvol: 60.1
                          volVol30: 82.1
                        - timestamp: 1721952000000
                          closeDvol: 61.82
                          volVol30: 81.8
                        - timestamp: 1721865600000
                          closeDvol: 61.38
                          volVol30: 84.9
                        - timestamp: 1721779200000
                          closeDvol: 63.91
                          volVol30: 84.9
                        - timestamp: 1721692800000
                          closeDvol: 67.62
                          volVol30: 82
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: {}
              schema:
                type: object
                properties: {}
      deprecated: false
      security:
        - ApiKeyAuth: []
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key

````