ALalgoseek
us-equity-opt-ref-market-structure-compliance

OCC Information Memos

Changed on

The OCC Information Memos dataset is derived from official Options Clearing Corporation records and provides authoritative coverage of information memos issued by the OCC. The dataset includes key identifiers such as the memo id, publishing and effective dates, options and futures symbols affected by the event described in memo, and other contract adjustments, along with detailed descriptions of the information contained in each memo.

For more details, please refer to the dataset documentation: OCC Information Memos Guide.

<details> <summary>**Advanced Filtering**</summary>

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 <a href="https://algoseek.com/docs/rest-api/tutorial/advanced-filtering">Advanced Filtering Guide</a> for the extensive reference.

</details>
get/v1/data/us-equity-opt-ref/occ-info-memos

Request

Query parameters

sortstring nullable

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.

columnsstring nullable

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.

offsetinteger

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

limitinteger

Maximum number of records to return. Default and maximum values depend on the response format; see format_limits in the schema for details.

response_format'json' | 'csv' | 'csv_gzip'

Note the lowercase which is used for the consistency with other projects and tools

The type of the data to return

Response

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

Example response

{
  "data": [
    {
      "MemoId": 52953,
      "PublishDate": "2023-08-01",
      "EffectiveDate": "2023-08-02",
      "SymbolChangeDate": [
        "2023-08-02",
        "2023-08-02"
      ],
      "OldSymbol": [
        "4MXEF",
        "4SPX"
      ],
      "NewSymbol": [
        "MXEF",
        "SPXW"
      ],
      "SymbolAssetType": [
        "O",
        "O"
      ],
      "SymbolChangeDetail": "MSCI Emerging Markets Index 4MXEF to MXEF; S&P 500 INDEX PM/EURO 4SPX to SPXW",
      "StrikeDivisor": 1,
      "Deliverables": [
        ""
      ],
      "UnderSymbolCUSIP": [
        ""
      ]
    }
  ],
  "pagination": {
    "limit": 1000,
    "next_offset": 2000,
    "offset": 1000
  }
}

Changes