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🗄️Developer Resource // JSON Endpoint

FONR JSON Data API

Access 166 data points for FONR spanning 42 years (1985–Jan 21, 2026). Optimized JSON format (24.3 KB).

GET /api/tickers/FONR/json● 200 OK (Live)
{
  "symbol": "FONR",
  "timestamp": "2026-01-22T07:04:13.864Z",
  "price": 18.69,
  "change_24h": -0.21356113187399436,
  "history_sample": [
    {
      "date": "1985-01-01",
      "open": 90,
      "high": 110,
      "low": 67.5,
      "close": 72.5,
      "volume": 121080
    },
    {
      "date": "1985-04-01",
      "open": 72.5,
      "high": 97.5,
      "low": 60,
      "close": 80,
      "volume": 148115
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import FONR
🛡️

Need to archive this data?

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