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

# Get IV surface time series

> Get IV surface history from the `iv_surface_daily` hypertable.

Returns daily snapshots including term structure, skew, ATM IV,
and historical percentiles.

## Parameters

- **days**: Number of days of history (default 30, max 90)

## Performance Target

<200ms response time.



## OpenAPI

````yaml /api/openapi.json get /api/graph/v1/options/{symbol}/surface
openapi: 3.1.0
info:
  title: Sequency Graph API
  description: >

    # Sequency Graph-Native Trading API


    Graph-native API for trading intelligence, built on FalkorDB.


    ## Features


    - **Screener**: Filter stocks using graph-native queries with relationship
    expansion

    - **Stock Detail**: Complete stock context with all relationships

    - **Confluence Scoring**: Setup quality assessment with weighted components

    - **Strategy Matching**: Find matching options strategies via graph
    traversal

    - **Market Context**: Current market-wide context for trading decisions


    ## Data Sources


    All data is sourced from the FalkorDB knowledge graph, populated by:

    - Pattern detector (Go) - Technical indicators, patterns

    - Graph sync service - Levels, volume profiles, news, day classification
  version: 1.0.0
servers: []
security: []
paths:
  /api/graph/v1/options/{symbol}/surface:
    get:
      tags:
        - Options Screener
      summary: Get IV surface time series
      description: |-
        Get IV surface history from the `iv_surface_daily` hypertable.

        Returns daily snapshots including term structure, skew, ATM IV,
        and historical percentiles.

        ## Parameters

        - **days**: Number of days of history (default 30, max 90)

        ## Performance Target

        <200ms response time.
      operationId: get_iv_surface_api_graph_v1_options__symbol__surface_get
      parameters:
        - name: symbol
          in: path
          required: true
          schema:
            type: string
            title: Symbol
        - name: days
          in: query
          required: false
          schema:
            type: integer
            maximum: 90
            minimum: 1
            description: Days of history
            default: 30
            title: Days
          description: Days of history
      responses:
        '200':
          description: IV surface time series
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IVSurfaceResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
        '504':
          description: Query timeout
components:
  schemas:
    IVSurfaceResponse:
      properties:
        symbol:
          type: string
          title: Symbol
        snapshots:
          items:
            $ref: '#/components/schemas/IVSurfaceSnapshot'
          type: array
          title: Snapshots
        days:
          type: integer
          title: Days
          description: Number of days of data returned
      type: object
      required:
        - symbol
        - days
      title: IVSurfaceResponse
      description: IV surface time series for a symbol.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    IVSurfaceSnapshot:
      properties:
        time:
          type: string
          format: date-time
          title: Time
        atm_iv:
          anyOf:
            - type: number
            - type: 'null'
          title: Atm Iv
        atm_iv_change:
          anyOf:
            - type: number
            - type: 'null'
          title: Atm Iv Change
        iv_7d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv 7D
        iv_14d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv 14D
        iv_21d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv 21D
        iv_30d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv 30D
        iv_45d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv 45D
        term_slope:
          anyOf:
            - type: number
            - type: 'null'
          title: Term Slope
        term_structure_shape:
          anyOf:
            - type: string
            - type: 'null'
          title: Term Structure Shape
        skew_ratio:
          anyOf:
            - type: number
            - type: 'null'
          title: Skew Ratio
        skew_percentile:
          anyOf:
            - type: number
            - type: 'null'
          title: Skew Percentile
        iv_percentile_30d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv Percentile 30D
        iv_percentile_60d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv Percentile 60D
        iv_percentile_90d:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv Percentile 90D
        realized_vol_20d:
          anyOf:
            - type: number
            - type: 'null'
          title: Realized Vol 20D
        iv_rv_ratio:
          anyOf:
            - type: number
            - type: 'null'
          title: Iv Rv Ratio
        data_quality:
          anyOf:
            - type: number
            - type: 'null'
          title: Data Quality
      type: object
      required:
        - time
      title: IVSurfaceSnapshot
      description: IV surface data for a single day.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError

````