> ## 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.

# Delta Surface Floating

> This endpoint returns the option delta surface with floating maturities (exchange listed expirations).



## OpenAPI

````yaml get /analytics/volatility/delta-surfaces/floating/tradfi
openapi: 3.1.0
info:
  title: derivatives-api
  version: '2'
servers:
  - url: https://api.amberdata.com/markets/derivatives
security:
  - sec0: []
paths:
  /analytics/volatility/delta-surfaces/floating/tradfi:
    get:
      summary: Delta Surface Floating
      description: >-
        This endpoint returns the option delta surface with floating maturities
        (exchange listed expirations).
      operationId: tradfi-volatility-delta-surfaces-floating
      parameters:
        - name: currency
          in: query
          description: >
            **[Required]** The underlying currency for which there are listed
            option instruments. 

            **[Examples]** ` IBIT | COIN ` 
          required: true
          schema:
            type: string
            default: IBIT
        - name: startDate
          in: query
          description: >-
            **[Optional]** Payload only includes data after this date
            (inclusive). 

            **[Formats]** `seconds | milliseconds | iso8601`

            **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00`
          schema:
            type: string
            format: date-time
        - name: endDate
          in: query
          description: >-
            **[Optional]** Payload only includes data before this date
            (exclusive). 

            **[Formats]** `seconds | milliseconds | iso8601`

            **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00`
          schema:
            type: string
            format: date-time
        - name: daysToExpirationStart
          in: query
          description: >-
            **[Optional]** Users can pass a days to expiration filter lower
            bound, to return only a subset of the delta surface. 

            **[Examples]** ` 0 | 7 | 60 `
          schema:
            type: integer
            format: int32
        - name: daysToExpirationEnd
          in: query
          description: >-
            **[Optional]** Users can pass a days to expiration filter upper
            bound, to return only a subset of the delta surface. 

            **[Examples]** ` 1 | 30 | 180 `
          schema:
            type: integer
            format: int32
        - name: timeInterval
          in: query
          description: >-
            **[Optional]** Time interval of data frequency for the selected date
            range. 

            **[Examples]** `minute | hour | day` 
             **[Note]** Due to the density of data historical date ranges are limited to 60x 1-minute or 24x 1 hour intervals, per call.
          schema:
            type: string
        - 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
                  title:
                    type: string
                  description:
                    type: string
                  payload:
                    type: object
              examples:
                Result:
                  value:
                    status: 200
                    title: OK
                    description: Successful request
                    payload:
                      data:
                        - atm: 67.88
                          currency: IBIT
                          daysToExpiration: 6.13
                          deltaCall05: 91.48
                          deltaCall10: 82.41
                          deltaCall15: 78.19
                          deltaCall20: 75.78
                          deltaCall25: 73.98
                          deltaCall30: 72.64
                          deltaCall35: 71.65
                          deltaCall40: 70.8
                          deltaCall45: 69.89
                          deltaPut05: 72.27
                          deltaPut10: 66.72
                          deltaPut15: 65.59
                          deltaPut20: 65.6
                          deltaPut25: 65.57
                          deltaPut30: 65.93
                          deltaPut35: 66.59
                          deltaPut40: 67.35
                          deltaPut45: 67.92
                          exchange: tradfi
                          indexPrice: 56.45423913043478
                          multiplier: 100
                          timestamp: 1732308900000
                          underlyingRate: 0.05209
                        - atm: 64.99
                          currency: IBIT
                          daysToExpiration: 13.13
                          deltaCall05: 87.13
                          deltaCall10: 77.56
                          deltaCall15: 73.58
                          deltaCall20: 71.39
                          deltaCall25: 69.9
                          deltaCall30: 68.75
                          deltaCall35: 67.68
                          deltaCall40: 67.04
                          deltaCall45: 66.32
                          deltaPut05: 70.04
                          deltaPut10: 65.35
                          deltaPut15: 64.56
                          deltaPut20: 64.13
                          deltaPut25: 63.91
                          deltaPut30: 64.44
                          deltaPut35: 64.17
                          deltaPut40: 64.57
                          deltaPut45: 65.05
                          exchange: tradfi
                          indexPrice: 56.45293478260869
                          multiplier: 100
                          timestamp: 1732308900000
                          underlyingRate: 0.05181
                      metadata:
                        api-version: '2023-09-30'
        '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

````