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🗄️Developer Resource // JSON Endpoint

GDXU JSON Data API

Access 275 data points for GDXU spanning 6 years (2020–Mar 2, 2026). Optimized JSON format (40.3 KB).

Download as CSV

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

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

Tired of exporting to Excel? Track GDXU and analyze your portfolio locally with Pocket Portfolio.

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{
  "symbol": "GDXU",
  "timestamp": "2026-03-09T07:14:04.914Z",
  "price": 308.15,
  "change_24h": -2.174603174603182,
  "history_sample": [
    {
      "date": "2020-11-30",
      "open": 242.9,
      "high": 245.22,
      "low": 233,
      "close": 236.08,
      "volume": 1990
    },
    {
      "date": "2020-12-07",
      "open": 243.1,
      "high": 276.9,
      "low": 227.2,
      "close": 228.71,
      "volume": 34610
    }
  ]
}
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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 GDXU
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Need to archive this data?

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