---
updatedAt: 2026-05-15T09:04:24.000Z
agentTools:
projectIndex: https://docs.ortex.com/llms.txt
---
# Delayed Reported Short Interest
Retrieve Official short interest data for US, Canada, Australia and Hong Kong for a given stock ticker. Short interest is the count of shares sold short that remain open (not yet bought back), offering a window into positioning and crowd sentiment. Elevated short interest can reflect bearish conviction and, in some cases, set the stage for short-squeeze dynamics.
Use Cases: Market sentiment analysis, short-squeeze monitoring, risk management, trading strategy tuning.
Available Data Points:
- Short Interest: Total shares reported as short.
- Days to Cover: Computed as short_interest ÷ avg_daily_volume, estimating how many trading days are needed for shorts to cover. For display and risk flags, values below 1 are rounded up to 1.
- Avg Daily Volume: The stock's average daily trading volume over a defined lookback, used to normalize short interest.
- Settlement Date: The official reporting/settlement date tied to the exchange calendar for this short interest snapshot.
Coverage
This API currently provides officially filed short interest statistics for the following countries (country code):
- United States (US)
- Australia (AU)
- Canada (CA)
- Hong Kong (HK)
# OpenAPI definition
```json
{
"openapi": "3.0.3",
"info": {
"title": "ORTEX APIs",
"version": "1.0",
"description": "A revolutionary global equity analytics platform which identifies and analyses relevant data for your stocks."
},
"paths": {
"/api/v1/stock/official_short_interest": {
"get": {
"operationId": "stock_official_short_interest_list",
"description": "Retrieve Official short interest data for US, Canada, Australia and Hong Kong for a given stock ticker. Short interest is the count of shares sold short that remain open (not yet bought back), offering a window into positioning and crowd sentiment. Elevated short interest can reflect bearish conviction and, in some cases, set the stage for short-squeeze dynamics.
\nUse Cases: Market sentiment analysis, short-squeeze monitoring, risk management, trading strategy tuning.
\nAvailable Data Points:
\n\n - Short Interest: Total shares reported as short.
\n - Days to Cover: Computed as short_interest ÷ avg_daily_volume, estimating how many trading days are needed for shorts to cover. For display and risk flags, values below 1 are rounded up to 1.
\n - Avg Daily Volume: The stock's average daily trading volume over a defined lookback, used to normalize short interest.
\n - Settlement Date: The official reporting/settlement date tied to the exchange calendar for this short interest snapshot.
\n
\nCoverage
\nThis API currently provides officially filed short interest statistics for the following countries (country code):
\n\n - United States (US)
\n - Australia (AU)
\n - Canada (CA)
\n - Hong Kong (HK)
\n
",
"summary": "Delayed Reported Short Interest",
"parameters": [
{
"in": "query",
"name": "country_code",
"schema": {
"type": "string"
},
"description": "2 character ISO country code: US, CA, AU, HK",
"required": true
},
{
"name": "page",
"required": false,
"in": "query",
"description": "A page number within the paginated result set.",
"schema": {
"type": "integer"
}
},
{
"name": "page_size",
"required": false,
"in": "query",
"description": "Number of results to return per page.",
"schema": {
"type": "integer"
}
},
{
"in": "query",
"name": "settlement_from_date",
"schema": {
"type": "string"
},
"description": "Starting settlement date for short interest data (YYYY-MM-DD)",
"required": true
},
{
"in": "query",
"name": "settlement_to_date",
"schema": {
"type": "string"
},
"description": "Ending settlement date for short interest data (YYYY-MM-DD). If no input, will default to settlement_from_date"
},
{
"in": "query",
"name": "ticker",
"schema": {
"type": "string"
},
"description": "Ticker symbol of company to retrieve short interest for (e.g. \"AAPL\")",
"required": true
}
],
"tags": [
"Short Interest"
],
"security": [
{
"ApiKeyAuth": []
}
],
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/PaginatedShortFINRAPositionList"
}
}
},
"description": ""
},
"400": {
"description": "Invalid request parameters"
},
"403": {
"description": "Not authorized"
},
"404": {
"description": "Data not found"
},
"429": {
"description": "Rate limit exceeded"
},
"500": {
"description": "Internal server error"
}
}
}
}
},
"components": {
"schemas": {
"PaginatedShortFINRAPositionList": {
"type": "object",
"required": [
"length",
"paginationLinks",
"rows"
],
"properties": {
"paginationLinks": {
"type": "object",
"example": {
"next": "http://api.example.org/accounts/?page=4",
"previous": "http://api.example.org/accounts/?page=2"
}
},
"length": {
"type": "integer",
"example": 123
},
"rows": {
"type": "array",
"items": {
"$ref": "#/components/schemas/ShortFINRAPosition"
}
}
}
},
"ShortFINRAPosition": {
"type": "object",
"properties": {
"ticker": {
"type": "string"
},
"companyName": {
"type": "string"
},
"settlementDate": {
"type": "string",
"format": "date"
},
"publishedDate": {
"type": "string",
"format": "date"
},
"shortsInterest": {
"type": "number",
"format": "double",
"maximum": 1e+21,
"minimum": -1e+21,
"exclusiveMaximum": true,
"exclusiveMinimum": true
},
"avgDailyVolume": {
"type": "number",
"format": "double",
"maximum": 1e+21,
"minimum": -1e+21,
"exclusiveMaximum": true,
"exclusiveMinimum": true
},
"daysToCover": {
"type": "number",
"format": "double",
"maximum": 1e+21,
"minimum": -1e+21,
"exclusiveMaximum": true,
"exclusiveMinimum": true
},
"country": {
"type": "string"
}
},
"required": [
"avgDailyVolume",
"companyName",
"country",
"daysToCover",
"publishedDate",
"settlementDate",
"shortsInterest",
"ticker"
]
}
},
"securitySchemes": {
"ApiKeyAuth": {
"type": "apiKey",
"in": "header",
"name": "Ortex-Api-Key",
"description": "Use test API key: `TEST` to get a limited result."
}
}
},
"servers": [
{
"url": "https://api.ortex.com/",
"description": "Production"
}
]
}
```