Historical Stock Splits API – Finnworlds

The Historical Stock Splits API by Finnworlds provides developers with a structured database of historical stock split events in JSON. Whether you're tracking stock split history for a specific company or analyzing patterns across markets, this RESTful API delivers split ratios, effective dates, and associated metadata in a consistent and developer-friendly format.

Built for financial platforms, data analysts, and investment research tools, this stock splits API allows retrieval of past share split data using tickers and dates. The API handles the data infrastructure, updates, and historical continuity for you.

Ideal for fintech apps, research dashboards, portfolio management platforms, or academic studies, the API supports seamless integration with JSON output, and additional formats like CSV, PDF, and email delivery.

Common Use Cases

– Tracking historical share split activity for investor tools and dashboards
– Integrating split-adjusted data into backtesting and trading algorithms
– Displaying historical stock split events on company profile pages

API Features

– Stock Split Ratio (e.g., 4:1, 2:1)
– Effective Date of the Split
– Stock Ticker Reference
– Supports historical range queries

Get started by getting your API key on the Finnworlds website. Looking for academic or non-profit use? Send us an email to start the conversation.

How to Access the Historical Stock Splits Data

• JSON REST API
• Excel CSV download
• PDF reports
• Email link

Documentation

Our documentation includes input parameters, output object descriptions, usage examples, and endpoint references. SDKs are available for all major languages and frameworks: Javascript, JQuery, VueJS, Angular, JAVA, PHP, NodeJS, Python, Go, Ruby, C#, R, Strest, Rust, Swift, and Scala.

Examples

https://api.finnworlds.com/api/v1/stocksplits?key=API_KEY&ticker=AAPL

https://api.finnworlds.com/api/v1/stocksplits?key=API_KEY&ticker=AAPL&date_from=2011-03-20&date_to=2025-01-01

{
    "status": {
        "code": 200,
        "message": "OK",
        "details": ""
    },
    "result": {
        "basics": {
            "ticker": "AAPL"
        },
        "output": {
            "stocksplits": [
                {
                    "stock_split": "4:1",
                    "date": "2020-08-31"
                },
                {
                    "stock_split": "7:1",
                    "date": "2014-06-09"
                },
                {
                    "stock_split": "2:1",
                    "date": "2005-02-28"
                },
                {
                    "stock_split": "2:1",
                    "date": "2000-06-21"
                },
                {
                    "stock_split": "2:1",
                    "date": "1987-06-16"
                }
            ]
        }
    }
}

Customer Support

Need help, have questions? Get in touch with Support.

Legal

Use of the Finnworlds website, services like API and database are subject to  Finnworlds terms & Conditions.