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🗄️Developer Resource // JSON Endpoint

EFC JSON Data API

Access 184 data points for EFC spanning 16 years (2010–Jan 21, 2026). Optimized JSON format (27.0 KB).

GET /api/tickers/EFC/json● 200 OK (Live)
{
  "symbol": "EFC",
  "timestamp": "2026-01-21T20:34:33.229Z",
  "price": 13.985,
  "change_24h": 0.46695402298850214,
  "history_sample": [
    {
      "date": "2010-11-01",
      "open": 22.11,
      "high": 22.65,
      "low": 21.45,
      "close": 22.3,
      "volume": 590700
    },
    {
      "date": "2010-12-01",
      "open": 22.4,
      "high": 22.68,
      "low": 21.76,
      "close": 22.24,
      "volume": 619800
    }
  ]
}
💻

Import via CLI

Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.

npx pocket-portfolio --import EFC
🛡️

Need to archive this data?

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