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🗄️Developer Resource // JSON Endpoint

GCMG JSON Data API

Access 371 data points for GCMG spanning 8 years (2019–Mar 6, 2026). Optimized JSON format (54.3 KB).

Download as CSV

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

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

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{
  "symbol": "GCMG",
  "timestamp": "2026-03-08T23:46:12.163Z",
  "price": 11.27,
  "change_24h": -4.0851063829787275,
  "history_sample": [
    {
      "date": "2019-02-04",
      "open": 9.75,
      "high": 9.75,
      "low": 9.75,
      "close": 9.75,
      "volume": 0
    },
    {
      "date": "2019-02-11",
      "open": 9.75,
      "high": 9.88,
      "low": 9.75,
      "close": 9.88,
      "volume": 1018400
    }
  ]
}
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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 GCMG
🛡️

Need to archive this data?

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