🗄️Developer Resource // JSON Endpoint

CIEN JSON Data API

Absolute endpoints (copy‑paste)
JSON:https://www.pocketportfolio.app/api/tickers/CIEN/json?range=max
CSV:https://www.pocketportfolio.app/api/tickers/CIEN/csv?range=max

Access 353 data points for CIEN spanning 30 years (1997–Jun 5, 2026). Optimized JSON format (51.7 KB).

Chart where your browser is the vault — wire this endpoint to the Terminal.
Minimal cloud, maximal local control — start from this stateless slice.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CIEN",
  "timestamp": "2026-06-07T05:04:14.570Z",
  "price": 488.21,
  "change_24h": -8.853126225192767,
  "history_sample": [
    {
      "date": "1997-03-01",
      "open": 136.5,
      "high": 147,
      "low": 94.94,
      "close": 99.53,
      "volume": 2148885
    },
    {
      "date": "1997-04-01",
      "open": 98,
      "high": 134.75,
      "low": 77.88,
      "close": 109.38,
      "volume": 3550599
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CIEN
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync CIEN.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)
> system_ready. Initialize Sovereign reasoning for this asset?[Y]— open Terminal