US Options Open Interest

The U.S. Options Open Interest dataset provides daily open interest information for U.S. equity and index options, derived from Options Price Reporting Authority (OPRA) open interest publications. The dataset consolidates open interest across all U.S. equity options exchanges, delivering contract-level visibility into the number of outstanding option positions at the end of each trading day. Open interest values are provided per option contract, enabling analysis of market participation, liquidi

GET https://api.devalgoseek.com/api/v1/data/us-equity-opt/opt-open-interest#

For more details, please refer to the dataset documentation: US Options Open Interest Guide.

Advanced Filtering

You can provide one or multiple filter expressions based on the dataset's columns to narrow down the results. For example, StartDate.gt=2023-01-01&StartDate.lt=2023-12-31, Ticker=AAPL.

Please refer to the Advanced Filtering Guide for the extensive reference.

Request#

Query Parameters#

sort Sort

Sorting criteria for the results. Provide a column name with optional prefix '+' for ascending order, or prefix with '-' for descending order. Multiple sorting fields may be supported depending on the dataset. If sort prefix is not provided, the ascending order is applied.

columns Columns

A comma-separated list of columns to include in the response. Use this parameter to select only specific fields from the dataset. If not provided, all available columns will be returned.

offset Offset

Possible values: >= 0

Number of records to skip before returning results. To be used with the limit parameter for pagination. If not provided, defaults to 0.

Default value: 0

Example: 100

limit Limit

Possible values: >= 0 and <= 100000

Maximum number of records to return. Used to control response size and pagination. If not provided, a default limit is applied by the server.

Default value: 10000

Example: 100

response_format ResponseFormat

Possible values: [json, csv, csv_gzip]

The type of the data to return

Default value: json

Examples:

JSON
CSV Gzip

JSON format (default)

Example: json

Compressed CSV format

Example: csv_gzip

Responses#

JSON, CSV file, or gzip-compressed CSV file, depending on the value of response_format query parameter

application/json
text/csv
application/gzip

Schema
Example (auto)

Schema

data object[]required

Array [

TradeDatedate

The trading day

Example: 2023-08-02

EventDateTimedate-time

Event timestamp (EST) with a millisecond resolution

Example: 2023-08-02 06:30:03.113

Tickerstring

Symbol name

Example: AAPL

CallPutstring

Option contract class: "C" for Call or "P" for Put

Example: C

Strikenumber

A fixed price for buying or selling an underlying security

Example: 50

ExpirationDatedate

Expiration date of the option contract

Example: 2023-08-04

OpenInterestinteger

The total number of options contracts held by market participants for the previous trading day

Example: 128

]

pagination objectrequired

offsetinteger

The number of records skipped to fetch the current page

Default value: 0

limitintegerrequired

The maximum number of records in the current page

next_offsetinteger

The number of records to skip to fetch the next page

{
  "data": [
    {
      "TradeDate": "2023-08-02",
      "EventDateTime": "2023-08-02 06:30:03.113",
      "Ticker": "AAPL",
      "CallPut": "C",
      "Strike": 50,
      "ExpirationDate": "2023-08-04",
      "OpenInterest": 128
    }
  ],
  "pagination": {
    "limit": 1000,
    "next_offset": 2000,
    "offset": 1000
  }
}

Schema
Example (auto)

Schema

stringbinary

"string"

Schema
Example (auto)

Schema

stringbinary

"string"

Validation Error

application/json

Schema
Example (auto)

Schema

detail object[]

Array [

loc object[]required

Array [

anyOf

string
integer

string

]

msgstringrequired

typestringrequired

inputInput

ctxobject

]

{
  "detail": [
    {
      "loc": [
        "string",
        0
      ],
      "msg": "string",
      "type": "string",
      "ctx": {}
    }
  ]
}

Authorization: X-API-KEY#

name: X-API-KEYtype: apiKeyin: header

HTTPCLIENT
RESTSHARP

var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "https://api.devalgoseek.com/api/v1/data/us-equity-opt/opt-open-interest");
request.Headers.Add("Accept", "application/json");
request.Headers.Add("X-API-KEY", "<X-API-KEY>");
var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
Console.WriteLine(await response.Content.ReadAsStringAsync());

Response

Click the Send API Request button above and see the response here!

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