AlgoSeek

US Equities Detailed Adjustment Factors

The U.S. Equities Detailed Adjustment Factors dataset provides an event-level, fully attributed view of corporate actions that impact U.S. equity price and volume history. This dataset extends basic adjustment factors by exposing detailed metadata for each corporate event, enabling deeper analysis, auditability, and reconstruction of historical adjustments. In addition to the adjustment factor itself, each record includes the algoseek SecId, ticker symbol effective on the event date, event reaso

GET 
https://api.devalgoseek.com/api/v1/data/us-equity-ref/eq-adj-factors-detail#

The U.S. Equities Detailed Adjustment Factors dataset provides an event-level, fully attributed view of corporate actions that impact U.S. equity price and volume history. This dataset extends basic adjustment factors by exposing detailed metadata for each corporate event, enabling deeper analysis, auditability, and reconstruction of historical adjustments. In addition to the adjustment factor itself, each record includes the algoseek SecId, ticker symbol effective on the event date, event reason, and a unique corporate event identifier. The dataset also captures the security name, and the source of the corporate action information, providing a complete and transparent representation of how each event alters the underlying security’s attributes. This dataset is designed for users who require granular corporate-action tracking, detailed reconciliation, and high-fidelity historical back-testing, particularly in environments where adjustment provenance and event-level explainability are critical.

For more details, please refer to the dataset documentation: US Equities Detailed Adjustment Factors 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 format (default)

    Example: json

Responses#

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

Schema
    data object[]required
  • Array [
    • ASIDinteger

    A unique identifier for a security

    Example: 1010000000019026
    Tickerstring

    Symbol name

    Example: WFC
    Namestring

    Company name

    Example: Wells Fargo & Co.
    ISINstring

    International Securities Identification Number

    Example: US9497461015
    EffectiveDatedate

    The date on which the event becomes effective

    Example: 2023-08-03
    ReportDatedate

    Date of the algoseek event report file

    Example: 2023-08-03
    Revisioninteger

    Version of the algoseek event report file

    Example: 2
    AdjustmentFactornumber

    The value of the Adjustment factor for the event

    Example: 0.992239467849224
    AdjustmentReasonstring

    The reason for the Corporate Event

    Example: CashDiv
    EventTypestring

    Type of event

    Example: DIV
    EventIdstring

    Unique Event ID under the AdjustmentReason

    Example: 3087413
    DivPayratenumber

    The cash dividend payout rate

    Example: 0.35
    DivCurrencystring

    The currency of a cash dividend

    Example: USD
    DivPaymentTypestring

    The type of divided payment

    Example: INT
    Detailstring

    Details of the event including Dividend Amount, Period (e.g., Interim), etc

    Example: INT Dividend (cash) of USD0.35/EQS [DIVPAYRATE=0.35] [DIVCURRENCY=USD] [DIVPERIOD=QTR] [OPTION=1] [EXCHGCD=USNYSE]
  • ]
    • 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

Authorization: X-API-KEY#

name: X-API-KEYtype: apiKeyin: header
var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "https://api.devalgoseek.com/api/v1/data/us-equity-ref/eq-adj-factors-detail");
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());
Request
Base URL
https://api.devalgoseek.com
Auth
Parameters
— query
— query
— query
— query
— query
Column Filters
Accept
Response

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

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