Launch AppUtility
🗄️Developer Resource // JSON Endpoint

GRND JSON Data API

Access 270 data points for GRND spanning 6 years (2021–Mar 6, 2026). Optimized JSON format (39.6 KB).

Download as CSV

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

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

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Start Free — Local First
{
  "symbol": "GRND",
  "timestamp": "2026-03-09T03:23:29.973Z",
  "price": 11.61,
  "change_24h": -0.17196904557180867,
  "history_sample": [
    {
      "date": "2021-01-11",
      "open": 11,
      "high": 11.01,
      "low": 10.3,
      "close": 10.55,
      "volume": 464300
    },
    {
      "date": "2021-01-18",
      "open": 10.65,
      "high": 10.74,
      "low": 10.3,
      "close": 10.49,
      "volume": 552100
    }
  ]
}
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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 GRND
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Need to archive this data?

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