Launch AppUtility
🗄️Developer Resource // JSON Endpoint

OPEN JSON Data API

Access 300 data points for OPEN spanning 6 years (2020–Mar 6, 2026). Optimized JSON format (43.9 KB).

Download as CSV

Prefer CSV format? Download OPEN historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.

GET /api/tickers/OPEN/json● 200 OK (Live)

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{
  "symbol": "OPEN",
  "timestamp": "2026-03-08T10:40:38.117Z",
  "price": 5,
  "change_24h": -3.4749034749034693,
  "history_sample": [
    {
      "date": "2020-06-15",
      "open": 10.75,
      "high": 11.5,
      "low": 10.7,
      "close": 10.93,
      "volume": 532100
    },
    {
      "date": "2020-06-22",
      "open": 11.11,
      "high": 12.82,
      "low": 10.9,
      "close": 11.28,
      "volume": 1388200
    }
  ]
}
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Import via CLI

Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.

npx pocket-portfolio --import OPEN
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync OPEN.json updates to your private Google Drive for backtesting and compliance.

Enable Sovereign Sync

Includes unlimited API calls & historical CSV exports.

Dataset Specifications

  • Format: Standardized JSON (OHLCV)
  • Frequency: End-of-Day (EOD) + Real-time delay
  • Adjustments: Split-adjusted, Dividend-adjusted
  • Source: Multi-provider aggregation (AlphaVantage, Yahoo fallback)