# List Stock Historical Bars
Retrieves historical bars data for multiple stock symbols in batch.
# OpenAPI definition
```json
{
"info": {
"title": "Webull OpenAPI Documentation",
"description": "The Webull OpenAPI enables integration of trading APIs, market data for building trading applications and brokerage solutions. It supports HTTP-based historical and real-time market data and MQTT streaming via WebSocket/TCP, along with SDKs, secure authentication, and APIs for orders, accounts, and event contract trading.",
"contact": {
"name": "Webull Developer Support",
"url": "https://www.webull.hk/en/help",
"email": "webull-api-support@webull.com"
},
"version": "2.0",
"x-logo": {
"url": "static/png/logo.png"
}
},
"servers": [
{
"url": "https://api.sandbox.webull.hk"
}
],
"path": "/market-data/stocks/bars/list",
"method": "post",
"tags": [
"Stock Market Data"
],
"description": "Retrieves historical bars data for multiple stock symbols in batch.",
"operationId": "historicalBars",
"parameters": [
{
"name": "x-app-key",
"in": "header",
"description": "A unique identifier issued to a developer for accessing an application's API.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "x-app-secret",
"in": "header",
"description": "A unique key issued to developers to access the application's API.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "x-timestamp",
"in": "header",
"description": "Timestamp of the request, follows ISO8601 format: YYYY-MM-DDThh:mm:ssZ, e.g. 2023-07-16T19:23:51Z, only supports UTC time zone.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "x-signature-version",
"in": "header",
"description": "Signature algorithm version, default is 1.0.",
"required": true,
"schema": {
"type": "string",
"default": "1.0"
},
"examples": {
"1.0": {
"value": "1.0"
}
}
},
{
"name": "x-signature-algorithm",
"in": "header",
"description": "Signature algorithm, default is HMAC-SHA1.",
"required": true,
"schema": {
"type": "string",
"default": "HMAC-SHA1"
},
"examples": {
"HMAC-SHA1": {
"value": "HMAC-SHA1"
}
}
},
{
"name": "x-signature-nonce",
"in": "header",
"description": "Signature unique random number.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "x-access-token",
"in": "header",
"description": "An access token is a credential that represents the authorization granted to a client (e.g., a user or an application) to access specific protected resources on behalf of a user, without needing to share their password.",
"required": true,
"schema": {
"type": "string"
}
},
{
"name": "x-version",
"in": "header",
"description": "API interface version. Supported values: `v2`, `v3`.",
"required": true,
"schema": {
"type": "string",
"default": "v3"
},
"examples": {
"v3": {
"value": "v3"
}
}
},
{
"name": "x-signature",
"in": "header",
"description": "A signature is a unique digital fingerprint, typically encrypted, that verifies the authenticity and integrity of a message or transaction, ensuring it has not been tampered with during transmission.",
"required": true,
"schema": {
"type": "string"
}
}
],
"requestBody": {
"content": {
"application/json": {
"schema": {
"required": [
"category",
"symbols",
"timespan"
],
"type": "object",
"properties": {
"symbols": {
"type": "array",
"description": "List of security symbols, supports JSON array format, multiple symbols separated by commas; maximum 100 symbols per query.",
"example": [
"AAPL",
"GOOG"
],
"items": {
"type": "string",
"description": "List of security symbols, supports JSON array format, multiple symbols separated by commas; maximum 100 symbols per query.",
"example": "[\"AAPL\",\"GOOG\"]"
}
},
"category": {
"type": "string",
"description": "Security type. Category values are as shown in the enum; US_OPTION type query is currently not supported.",
"example": "US_STOCK",
"enum": [
"US_STOCK",
"US_ETF",
"HK_STOCK",
"CN_STOCK"
]
},
"timespan": {
"type": "string",
"description": "Bar time granularity.",
"example": "D",
"enum": [
"S5",
"S15",
"M1",
"M5",
"M15",
"M30",
"M60",
"M120",
"M240",
"D",
"W",
"M",
"Y"
]
},
"count": {
"type": "integer",
"description": "Number of bars, default 200, maximum limit 1200 (M1 supports up to 1650).",
"format": "int32",
"example": 500
},
"real_time_required": {
"type": "boolean",
"description": "Return the latest trading data, default is true;
true: Pulls only the completed bars from the previous period at the nearest whole hour at the time of request.
false: The returned data includes the latest market data.",
"example": false
},
"trading_sessions": {
"type": "string",
"description": "Specify trading session(s). Multiple sessions separated by \",\".",
"example": "PRE,RTH",
"enum": [
"PRE",
"RTH",
"ATH",
"OVN"
]
},
"start_time": {
"type": "integer",
"description": "Start time as timestamp in milliseconds. Used to specify the beginning of the time range for bar data.",
"format": "int64",
"example": 1711262998500
},
"end_time": {
"type": "integer",
"description": "End time as timestamp in milliseconds. Used to specify the end of the time range for bar data. Delayed permission will automatically offset the time.",
"format": "int64",
"example": 1711349398500
}
},
"title": "BatchBarRequest"
}
}
},
"required": true
},
"responses": {
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"required": [
"result"
],
"type": "object",
"properties": {
"result": {
"type": "array",
"description": "List of batch bar data results, each element contains historical bar data for one stock.",
"items": {
"required": [
"instrument_id",
"result",
"symbol"
],
"type": "object",
"properties": {
"symbol": {
"type": "string",
"description": "Futures contract symbol used in trading and market data, e.g. front-month code provided by the exchange.",
"example": "SILZ5"
},
"instrument_id": {
"type": "string",
"description": "Unique instrument identifier for this futures contract in the Webull system or exchange.",
"example": "470059643"
},
"result": {
"type": "array",
"description": "List of historical bar data for this futures.",
"items": {
"required": [
"close",
"high",
"low",
"open",
"time",
"volume"
],
"type": "object",
"properties": {
"time": {
"type": "string",
"description": "Bar UTC time",
"example": "2021-12-28T09:00:09.945+0000"
},
"open": {
"type": "string",
"description": "Open price",
"example": "1.3362"
},
"close": {
"type": "string",
"description": "Close price",
"example": "1.3362"
},
"high": {
"type": "string",
"description": "High price",
"example": "1.3362"
},
"low": {
"type": "string",
"description": "Low price",
"example": "1.3362"
},
"volume": {
"type": "string",
"description": "Volume",
"example": "10"
}
},
"description": "Single K-line price record",
"title": "PriceRecord"
}
}
},
"description": "Historical K-line data for a single futures",
"title": "SymbolData"
}
}
},
"description": "Batch historical K-line data response object",
"title": "BatchBarsVo"
}
}
}
},
"401": {
"description": "Unauthorized: Authentication required",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"error_code": {
"type": "string",
"description": "Internal logic error code",
"example": "UNAUTHORIZED"
},
"message": {
"type": "string",
"description": "Error message",
"example": "Insufficient permission"
}
}
}
}
}
},
"417": {
"description": "A business logic error triggered when the request cannot be processed due to domain-specific constraints.",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"error_code": {
"type": "string",
"description": "Internal logic error code",
"example": "INVALID_PARAMETER"
},
"message": {
"type": "string",
"description": "Error message",
"example": "Parameter error, phone"
}
}
}
}
}
},
"500": {
"description": "Internal Server Error.",
"content": {
"application/json": {
"schema": {
"type": "object",
"properties": {
"error_code": {
"type": "string",
"description": "Internal logic error code",
"example": "SYSTEM_ERROR"
},
"message": {
"type": "string",
"description": "Error message",
"example": "Internal Server Error"
}
}
}
}
}
}
},
"jsonRequestBodyExample": {
"symbols": [
"AAPL",
"GOOG"
],
"category": "US_STOCK",
"timespan": "D",
"count": 500,
"real_time_required": false,
"trading_sessions": "PRE,RTH",
"start_time": 1711262998500,
"end_time": 1711349398500
},
"postman": {
"name": "List Stock Historical Bars",
"description": {
"content": "Retrieves historical bars data for multiple stock symbols in batch.",
"type": "text/plain"
},
"url": {
"path": [
"market-data",
"stocks",
"bars",
"list"
],
"host": [
"{{baseUrl}}"
],
"query": [],
"variable": []
},
"header": [
{
"disabled": false,
"description": {
"content": "(Required) A unique identifier issued to a developer for accessing an application's API.",
"type": "text/plain"
},
"key": "x-app-key",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) A unique key issued to developers to access the application's API.",
"type": "text/plain"
},
"key": "x-app-secret",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Timestamp of the request, follows ISO8601 format: YYYY-MM-DDThh:mm:ssZ, e.g. 2023-07-16T19:23:51Z, only supports UTC time zone.",
"type": "text/plain"
},
"key": "x-timestamp",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Signature algorithm version, default is 1.0.",
"type": "text/plain"
},
"key": "x-signature-version",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Signature algorithm, default is HMAC-SHA1.",
"type": "text/plain"
},
"key": "x-signature-algorithm",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) Signature unique random number.",
"type": "text/plain"
},
"key": "x-signature-nonce",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) An access token is a credential that represents the authorization granted to a client (e.g., a user or an application) to access specific protected resources on behalf of a user, without needing to share their password.",
"type": "text/plain"
},
"key": "x-access-token",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) API interface version. Supported values: `v2`, `v3`.",
"type": "text/plain"
},
"key": "x-version",
"value": ""
},
{
"disabled": false,
"description": {
"content": "(Required) A signature is a unique digital fingerprint, typically encrypted, that verifies the authenticity and integrity of a message or transaction, ensuring it has not been tampered with during transmission.",
"type": "text/plain"
},
"key": "x-signature",
"value": ""
},
{
"key": "Content-Type",
"value": "application/json"
},
{
"key": "Accept",
"value": "application/json"
}
],
"method": "POST",
"body": {
"mode": "raw",
"raw": "",
"options": {
"raw": {
"language": "json"
}
}
}
}
}
```