> ## 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 Information > **Feature Overview** [OpenAPI JSON Spec](/docs/output/v1_etf_info_get.json) Retrieve comprehensive information about a specified ETF, including basic details, performance metrics, expense ratios, and fund characteristics. **Main Use Cases** - **Investment Research**: Get detailed ETF information for investment decisions - **Fund Comparison**: Compare different ETFs based on metrics and characteristics - **Performance Analysis**: Analyze historical returns and risk metrics - **Cost Analysis**: Evaluate expense ratios and fee structures - **Portfolio Planning**: Use ETF information for asset allocation strategies **Response Data Structure** `data` is an array of ETFInfo objects containing: - `symbol` (String): Ticker Symbol. The unique identifier for the ETF listed on an exchange (e.g., "SPY") - `name` (String): ETF Name. The official full name of the fund (e.g., "SPDR S&P 500 ETF Trust") - `etf_company` (String): Issuer. The fund family or company managing the ETF (e.g., "SPDR") - `description` (String): Fund Description. A summary of the ETF's investment objective, tracked index, and key features - `website` (String): Official Website. The URL link to the product's official detail page - `updated_at` (Timestamp): Last Updated. The timestamp indicating when this data entry was last refreshed - `asset_class` (String): Asset Class. The primary category of assets the ETF invests in (e.g., "Equity" for stocks) - `assets_under_management` (Number): AUM. The total market value of the financial assets managed by the fund - `nav` (Number): Net Asset Value. The value per share of the ETF - `nav_currency` (String): Currency. The currency in which the NAV is denominated (e.g., "USD") - `avg_volume` (Number): Average Volume. The average number of shares traded daily over a specific period - `expense_ratio` (Number): Expense Ratio. The annual fee charged to investors to manage the fund (e.g., 0.0945 means 0.0945%) - `inception_date` (Date): Inception Date. The date when the fund was launched and began trading - `domicile` (String): Domicile. The country or jurisdiction where the fund is legally registered (e.g., "US") - `holdings_count` (Number): Holdings Count. The total number of individual securities held in the ETF portfolio - `isin` (String): ISIN. International Securities Identification Number; a unique code for identifying securities globally - `security_cusip` (String): CUSIP. A unique alphanumeric code used to identify securities, primarily in North America - `sectors_list` (Array): Sector Breakdown. A list showing how the fund's assets are distributed across different industries ↳ `industry` (String): Industry Name. The specific sector category (e.g., "Technology", "Financial Services") ↳ `exposure` (Number): Exposure (%). The percentage weight of this sector in the total portfolio. Note: For equity ETFs like SPY, this is typically Market-Cap Weighted, meaning sectors with larger capitalized companies have a higher percentage ## OpenAPI ````yaml /api-reference/openapi.json get /v1/etf/info 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/info: get: tags: - ETF summary: Get ETF Information description: >- **Feature Overview** [OpenAPI JSON Spec](/docs/output/v1_etf_info_get.json) Retrieve comprehensive information about a specified ETF, including basic details, performance metrics, expense ratios, and fund characteristics. **Main Use Cases** - **Investment Research**: Get detailed ETF information for investment decisions - **Fund Comparison**: Compare different ETFs based on metrics and characteristics - **Performance Analysis**: Analyze historical returns and risk metrics - **Cost Analysis**: Evaluate expense ratios and fee structures - **Portfolio Planning**: Use ETF information for asset allocation strategies **Response Data Structure** `data` is an array of ETFInfo objects containing: - `symbol` (String): Ticker Symbol. The unique identifier for the ETF listed on an exchange (e.g., "SPY") - `name` (String): ETF Name. The official full name of the fund (e.g., "SPDR S&P 500 ETF Trust") - `etf_company` (String): Issuer. The fund family or company managing the ETF (e.g., "SPDR") - `description` (String): Fund Description. A summary of the ETF's investment objective, tracked index, and key features - `website` (String): Official Website. The URL link to the product's official detail page - `updated_at` (Timestamp): Last Updated. The timestamp indicating when this data entry was last refreshed - `asset_class` (String): Asset Class. The primary category of assets the ETF invests in (e.g., "Equity" for stocks) - `assets_under_management` (Number): AUM. The total market value of the financial assets managed by the fund - `nav` (Number): Net Asset Value. The value per share of the ETF - `nav_currency` (String): Currency. The currency in which the NAV is denominated (e.g., "USD") - `avg_volume` (Number): Average Volume. The average number of shares traded daily over a specific period - `expense_ratio` (Number): Expense Ratio. The annual fee charged to investors to manage the fund (e.g., 0.0945 means 0.0945%) - `inception_date` (Date): Inception Date. The date when the fund was launched and began trading - `domicile` (String): Domicile. The country or jurisdiction where the fund is legally registered (e.g., "US") - `holdings_count` (Number): Holdings Count. The total number of individual securities held in the ETF portfolio - `isin` (String): ISIN. International Securities Identification Number; a unique code for identifying securities globally - `security_cusip` (String): CUSIP. A unique alphanumeric code used to identify securities, primarily in North America - `sectors_list` (Array): Sector Breakdown. A list showing how the fund's assets are distributed across different industries ↳ `industry` (String): Industry Name. The specific sector category (e.g., "Technology", "Financial Services") ↳ `exposure` (Number): Exposure (%). The percentage weight of this sector in the total portfolio. Note: For equity ETFs like SPY, this is typically Market-Cap Weighted, meaning sectors with larger capitalized companies have a higher percentage 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 information content: application/json: schema: allOf: - $ref: '#/components/schemas/model.APIResponse' - properties: data: items: $ref: '#/components/schemas/model.ETFInfo' 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.ETFInfo: properties: asset_class: example: Equity type: string assets_under_management: example: 661267310000 type: number avg_volume: example: 73651172 type: integer description: example: >- The SPDR S&P 500 ETF Trust seeks to provide investment results that correspond generally to the price and yield performance of the S&P 500 Index. type: string domicile: example: US type: string etf_company: example: SPDR type: string expense_ratio: example: 0.0945 type: number holdings_count: example: 503 type: integer inception_date: example: '1993-01-22' type: string isin: example: US78462F1030 type: string logo: example: >- https://storage.googleapis.com/arrays-public-assets/etf/logos/SPY.svg type: string name: example: SPDR S&P 500 ETF Trust type: string nav: example: 649.08 type: number nav_currency: example: USD type: string sectors_list: items: $ref: '#/components/schemas/model.ETFSector' type: array security_cusip: example: 78462F103 type: string symbol: example: SPY type: string updated_at: example: '2025-09-06T02:56:15.171Z' type: string website: example: >- https://www.ssga.com/us/en/institutional/etfs/spdr-sp-500-etf-trust-spy type: string 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.ETFSector: properties: exposure: example: 34.62 type: number industry: example: Technology type: string 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 ````