Launch AppUtility
🗄️Developer Resource // JSON Endpoint

DENN JSON Data API

Access 338 data points for DENN spanning 29 years (1997–Jan 1, 2026). Optimized JSON format (49.5 KB).

Download as CSV

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

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

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

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{
  "symbol": "DENN",
  "timestamp": "2026-03-09T19:46:59.598Z",
  "price": 6.25,
  "change_24h": -0.1597444089456835,
  "history_sample": [
    {
      "date": "1997-12-01",
      "open": 11,
      "high": 11,
      "low": 8,
      "close": 9.25,
      "volume": 181300
    },
    {
      "date": "1998-01-01",
      "open": 9.25,
      "high": 11.56,
      "low": 8.75,
      "close": 10,
      "volume": 2099600
    }
  ]
}
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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 DENN
🛡️

Need to archive this data?

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