Launch AppUtility
🗄️Developer Resource // JSON Endpoint

GPMT JSON Data API

Access 454 data points for GPMT spanning 9 years (2017–Mar 2, 2026). Optimized JSON format (66.5 KB).

Download as CSV

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

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

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{
  "symbol": "GPMT",
  "timestamp": "2026-03-09T07:17:45.057Z",
  "price": 1.72,
  "change_24h": -1.7142857142857157,
  "history_sample": [
    {
      "date": "2017-06-26",
      "open": 19.08,
      "high": 19.16,
      "low": 18.61,
      "close": 18.92,
      "volume": 3340600
    },
    {
      "date": "2017-07-03",
      "open": 19.06,
      "high": 19.21,
      "low": 18.86,
      "close": 18.95,
      "volume": 514300
    }
  ]
}
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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 GPMT
🛡️

Need to archive this data?

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