Launch AppUtility
🗄️Developer Resource // JSON Endpoint

CEFS JSON Data API

Access 469 data points for CEFS spanning 9 years (2017–Mar 6, 2026). Optimized JSON format (68.7 KB).

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CEFS",
  "timestamp": "2026-03-07T20:56:48.205Z",
  "price": 22.61,
  "change_24h": -2.2904062229904976,
  "history_sample": [
    {
      "date": "2017-03-20",
      "open": 20.03,
      "high": 20.37,
      "low": 19.84,
      "close": 19.96,
      "volume": 149500
    },
    {
      "date": "2017-03-27",
      "open": 20.33,
      "high": 20.33,
      "low": 19.83,
      "close": 20.18,
      "volume": 75400
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CEFS
🛡️

Need to archive this data?

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