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🗄️Developer Resource // JSON Endpoint

GMG JSON Data API

Access 159 data points for GMG spanning 18 years (2000–Jul 1, 2017). Optimized JSON format (23.3 KB).

GET /api/tickers/GMG/json● 200 OK (Live)
{
  "symbol": "GMG",
  "timestamp": "2026-01-22T07:04:19.984Z",
  "price": null,
  "change_24h": null,
  "history_sample": [
    {
      "date": "2000-01-01",
      "open": 0.1,
      "high": 0.1,
      "low": 0.09,
      "close": 0.09,
      "volume": 0
    },
    {
      "date": "2000-02-01",
      "open": 0.09,
      "high": 0.09,
      "low": 0.08,
      "close": 0.08,
      "volume": 0
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import GMG
🛡️

Need to archive this data?

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