🗄️Developer Resource // JSON Endpoint
CENX JSON Data API
Access 362 data points for CENX spanning 31 years (1996–Apr 22, 2026). Optimized JSON format (53.0 KB).
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Download as CSV
Prefer CSV format? Download CENX historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/CENX/json● 200 OK (Live)Tired of exporting to Excel? Track CENX and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "CENX",
"timestamp": "2026-04-22T20:33:04.584Z",
"price": 63.09,
"change_24h": 2.752442996742679,
"history_sample": [
{
"date": "1996-04-01",
"open": 13.63,
"high": 15.13,
"low": 13,
"close": 14.75,
"volume": 4381700
},
{
"date": "1996-05-01",
"open": 14.75,
"high": 16.25,
"low": 14.75,
"close": 15.13,
"volume": 2904500
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import CENX🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync CENX.json updates to your private Google Drive for backtesting and compliance.
Enable Sovereign SyncIncludes 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)