Launch AppUtility
🗄️Developer Resource // JSON Endpoint

CII JSON Data API

Access 263 data points for CII spanning 22 years (2004–Mar 6, 2026). Optimized JSON format (38.5 KB).

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CII",
  "timestamp": "2026-03-07T18:51:07.447Z",
  "price": 21.86,
  "change_24h": -2.060931899641581,
  "history_sample": [
    {
      "date": "2004-06-01",
      "open": 20,
      "high": 20.01,
      "low": 17.3,
      "close": 17.5,
      "volume": 795700
    },
    {
      "date": "2004-07-01",
      "open": 17.51,
      "high": 18.45,
      "low": 16.34,
      "close": 16.81,
      "volume": 573800
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CII
🛡️

Need to archive this data?

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