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

# Get ETF Sector Weightings

> **Feature Overview**
[OpenAPI JSON Spec](/docs/output/v1_etf_sector-weightings_get.json)
Retrieve sector allocation information for a specified ETF symbol. This endpoint provides detailed breakdown of the ETF's sector exposure and their respective weight percentages.

**Main Use Cases**
- **Sector Analysis**: Analyze ETF's sector diversification and concentration
- **Risk Assessment**: Evaluate sector-specific risk exposure
- **Portfolio Construction**: Use sector weightings for sector allocation
- **Investment Research**: Understand ETF's sector distribution
- **Performance Attribution**: Analyze performance by sector exposure

**Response Data Structure**

- `weightings` ([]SectorWeighting): Array of sector weighting items

**SectorWeighting fields:**
- `symbol` (string): ETF symbol
- `sector` (string): Sector name (e.g., "Technology", "Financial Services")
- `weight_percentage` (float64): Percentage weight as number (e.g., 34.62)
- `updated_at` (string): Data update time (RFC3339), the last refresh time of this data



## OpenAPI

````yaml /api-reference/openapi.json get /v1/etf/sector-weightings
openapi: 3.0.0
info:
  contact: {}
  description: >-
    Welcome to Arrays!


    Arrays is a unified financial data layer for both financial institutions and
    retail users, delivering comprehensive market data across crypto and equity
    markets. Our datasets cover fundamentals, ETFs, options, crypto, and more.


    Visit [arrays.org](https://arrays.org) to request an API key and start your
    free trial. You can explore our full API offerings in the documentation
    below.


    For any questions regarding APIs or pricing, please contact
    support@arrays.org.
  title: Arrays API
  version: '1.0'
servers:
  - url: https://data-tools.prd.arrays.org/api
security: []
paths:
  /v1/etf/sector-weightings:
    get:
      tags:
        - ETF
      summary: Get ETF Sector Weightings
      description: >-
        **Feature Overview**

        [OpenAPI JSON Spec](/docs/output/v1_etf_sector-weightings_get.json)

        Retrieve sector allocation information for a specified ETF symbol. This
        endpoint provides detailed breakdown of the ETF's sector exposure and
        their respective weight percentages.


        **Main Use Cases**

        - **Sector Analysis**: Analyze ETF's sector diversification and
        concentration

        - **Risk Assessment**: Evaluate sector-specific risk exposure

        - **Portfolio Construction**: Use sector weightings for sector
        allocation

        - **Investment Research**: Understand ETF's sector distribution

        - **Performance Attribution**: Analyze performance by sector exposure


        **Response Data Structure**


        - `weightings` ([]SectorWeighting): Array of sector weighting items


        **SectorWeighting fields:**

        - `symbol` (string): ETF symbol

        - `sector` (string): Sector name (e.g., "Technology", "Financial
        Services")

        - `weight_percentage` (float64): Percentage weight as number (e.g.,
        34.62)

        - `updated_at` (string): Data update time (RFC3339), the last refresh
        time of this data
      parameters:
        - description: ETF symbol (uppercase, e.g., SPY, QQQ, IWM)
          in: query
          name: symbol
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successfully retrieved ETF sector weightings
          content:
            application/json:
              schema:
                allOf:
                  - $ref: '#/components/schemas/model.APIResponse'
                  - properties:
                      data:
                        items:
                          $ref: '#/components/schemas/model.SectorWeighting'
                        type: array
                    type: object
        '400':
          description: Invalid parameters
          content:
            application/json:
              schema:
                allOf:
                  - $ref: '#/components/schemas/model.APIResponse'
                  - properties:
                      data:
                        $ref: '#/components/schemas/model.APIError'
                    type: object
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                allOf:
                  - $ref: '#/components/schemas/model.APIResponse'
                  - properties:
                      data:
                        $ref: '#/components/schemas/model.APIError'
                    type: object
      security:
        - ApiKeyAuth: []
components:
  schemas:
    model.APIResponse:
      properties:
        data: {}
        error:
          $ref: '#/components/schemas/model.APIError'
        metadata: {}
        pagination: {}
        request_id:
          type: string
        success:
          type: boolean
      type: object
    model.SectorWeighting:
      properties:
        sector:
          example: Technology
          type: string
        symbol:
          example: SPY
          type: string
        updated_at:
          description: Data update time, RFC3339
          example: '2025-09-09T12:09:15Z'
          type: string
        weight_percentage:
          example: 34.62
          type: number
      type: object
    model.APIError:
      properties:
        code:
          example: RESOURCE_NOT_FOUND
          type: string
        details:
          items:
            $ref: '#/components/schemas/model.APIErrorDetail'
          type: array
        docs_url:
          type: string
        examples:
          items:
            type: string
          type: array
        hint:
          type: string
        message:
          example: The requested resource was not found.
          type: string
        suggestions:
          items:
            type: string
          type: array
      type: object
    model.APIErrorDetail:
      properties:
        field:
          type: string
        got:
          type: string
        reason:
          type: string
      type: object
  securitySchemes:
    ApiKeyAuth:
      description: 'API Key authentication. Example: "your-api-key-here"'
      in: header
      name: X-API-Key
      type: apiKey

````