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🗄️Developer Resource // JSON Endpoint

GBX JSON Data API

Access 381 data points for GBX spanning 32 years (1994–Mar 6, 2026). Optimized JSON format (55.8 KB).

Download as CSV

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

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

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{
  "symbol": "GBX",
  "timestamp": "2026-03-07T21:06:29.858Z",
  "price": 54.56,
  "change_24h": -1.7644940583363287,
  "history_sample": [
    {
      "date": "1994-08-01",
      "open": 16.25,
      "high": 18.5,
      "low": 15.75,
      "close": 17.38,
      "volume": 883700
    },
    {
      "date": "1994-09-01",
      "open": 17.38,
      "high": 19,
      "low": 16.25,
      "close": 18.63,
      "volume": 480500
    }
  ]
}
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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 GBX
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync GBX.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)