> ## Documentation Index > Fetch the complete documentation index at: https://edgeful.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # pre market volume indicator standard > Computes the correlation between daily pre-market volume (4:00-9:15 AM) and regular-hours volume (9:30 AM-3:45 PM). Returns mean volume for each session, the correlation coefficient, and a per-day breakdown - used to anticipate regular-session participation from the pre-market read. ## OpenAPI ````yaml /openapi-public.json get /intraday_calculation/pre-market-volume-indicator-standard/{market_type}/{ticker} openapi: 3.1.0 info: title: Edgeful API description: >- Public API reference for Edgeful market analysis calculations. The bearer token is your Edgeful API key: paste the key itself in the docs playground. Report responses include row-level output in `detailed` only when your plan includes row-level detail. version: 1.0.0 servers: - url: https://api.edgeful.com description: Production security: - BearerAuth: [] tags: - name: reports - name: live data paths: /intraday_calculation/pre-market-volume-indicator-standard/{market_type}/{ticker}: get: tags: - reports summary: pre market volume indicator standard description: >- Computes the correlation between daily pre-market volume (4:00-9:15 AM) and regular-hours volume (9:30 AM-3:45 PM). Returns mean volume for each session, the correlation coefficient, and a per-day breakdown - used to anticipate regular-session participation from the pre-market read. operationId: >- pre_market_volume_indicator_standard_intraday_calculation_pre_market_volume_indicator_standard__market_type___ticker__get parameters: - name: ticker in: path required: true schema: type: string description: >- ticker symbol. format varies by `market_type`: stocks use a plain symbol (e.g., SPY), forex uses a 6-character pair (e.g., EURUSD), crypto uses a contract pair (e.g., BTCUSD), futures uses the root symbol (e.g., ES). examples: - SPY - EURUSD - BTCUSD - ES title: Ticker description: >- ticker symbol. format varies by `market_type`: stocks use a plain symbol (e.g., SPY), forex uses a 6-character pair (e.g., EURUSD), crypto uses a contract pair (e.g., BTCUSD), futures uses the root symbol (e.g., ES). - name: market_type in: path required: true schema: $ref: '#/components/schemas/MarketTypeEnum' description: >- market venue for the ticker. one of: `forex`, `futures`, `crypto`, `stock`. determines supported symbols and whether session-based intraday aggregation is available. examples: - stock - forex description: >- market venue for the ticker. one of: `forex`, `futures`, `crypto`, `stock`. determines supported symbols and whether session-based intraday aggregation is available. - name: start_date in: query required: true schema: type: string description: >- inclusive start date, `YYYY-MM-DD`, interpreted in the request `timezone`. sessions on or after this date are included in the calculation. examples: - '2024-01-01' title: Start Date description: >- inclusive start date, `YYYY-MM-DD`, interpreted in the request `timezone`. sessions on or after this date are included in the calculation. - name: end_date in: query required: true schema: type: string description: >- inclusive end date, `YYYY-MM-DD`, interpreted in the request `timezone`. sessions on or before this date are included in the calculation. examples: - '2024-12-31' title: End Date description: >- inclusive end date, `YYYY-MM-DD`, interpreted in the request `timezone`. sessions on or before this date are included in the calculation. - name: timeframe in: query required: false schema: type: string description: >- intraday candle granularity used for the calculation. accepted values: `1min`, `5min`, `15min`, `30min`, `1hour`. route-specific defaults are shown in the `default` field. default: 15min title: Timeframe description: >- intraday candle granularity used for the calculation. accepted values: `1min`, `5min`, `15min`, `30min`, `1hour`. route-specific defaults are shown in the `default` field. responses: '200': description: Successful Response content: application/json: schema: {} '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - BearerAuth: [] x-codeSamples: - lang: curl label: cURL source: |- curl --request GET \ --url 'https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date=' \ --header 'Authorization: Bearer ' - lang: python label: Python source: >- import requests url = "https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date=" headers = {"Authorization": "Bearer "} response = requests.get(url, headers=headers) print(response.json()) - lang: javascript label: JavaScript source: >- const url = "https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date="; const options = { method: "GET", headers: { Authorization: "Bearer " }, }; const response = await fetch(url, options); const data = await response.json(); console.log(data); - lang: php label: PHP source: >- /?start_date=&end_date="); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET"); curl_setopt($ch, CURLOPT_HTTPHEADER, ["Authorization: Bearer "]); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($ch); curl_close($ch); echo $response; - lang: go label: Go source: |- package main import ( "fmt" "io" "net/http" ) func main() { req, _ := http.NewRequest("GET", "https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date=", nil) req.Header.Set("Authorization", "Bearer ") resp, _ := http.DefaultClient.Do(req) defer resp.Body.Close() body, _ := io.ReadAll(resp.Body) fmt.Println(string(body)) } - lang: java label: Java source: >- import java.net.URI; import java.net.http.HttpClient; import java.net.http.HttpRequest; import java.net.http.HttpResponse; HttpClient client = HttpClient.newHttpClient(); HttpRequest request = HttpRequest.newBuilder() .uri(URI.create("https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date=")) .header("Authorization", "Bearer ") .method("GET", HttpRequest.BodyPublishers.noBody()) .build(); HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); System.out.println(response.body()); - lang: ruby label: Ruby source: >- require "net/http" require "uri" uri = URI("https://api.edgeful.com/intraday_calculation/pre-market-volume-indicator-standard//?start_date=&end_date=") request = Net::HTTP::Get.new(uri) request["Authorization"] = "Bearer " response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == "https") do |http| http.request(request) end puts response.body components: schemas: MarketTypeEnum: type: string enum: - forex - futures - crypto - stock title: MarketTypeEnum HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError 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 securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: API Key description: >- Use your Edgeful API key as the bearer token. In the API Reference authorization drawer, paste only the key (for example, `ef_live_`). ````