🗄️Developer Resource // JSON Endpoint
GERN JSON Data API
Access 358 data points for GERN spanning 30 years (1996–Apr 22, 2026). Optimized JSON format (52.4 KB).
Local-first charts from this JSON — open the Terminal.
Parse and visualize without shipping raw ledgers to a vendor database.
Download as CSV
Prefer CSV format? Download GERN historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/GERN/json● 200 OK (Live)Tired of exporting to Excel? Track GERN and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "GERN",
"timestamp": "2026-04-22T17:55:53.413Z",
"price": 1.55,
"change_24h": 3.333333333333336,
"history_sample": [
{
"date": "1996-08-01",
"open": 7.21,
"high": 7.44,
"low": 6.14,
"close": 6.5,
"volume": 1483210
},
{
"date": "1996-09-01",
"open": 6.5,
"high": 6.85,
"low": 6.03,
"close": 6.62,
"volume": 395164
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import GERN🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync GERN.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)