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🗄️Developer Resource // JSON Endpoint

GTLB JSON Data API

Access 231 data points for GTLB spanning 5 years (2021–Mar 6, 2026). Optimized JSON format (33.8 KB).

Download as CSV

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

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

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{
  "symbol": "GTLB",
  "timestamp": "2026-03-09T00:49:32.762Z",
  "price": 24.925,
  "change_24h": -1.6959179648984408,
  "history_sample": [
    {
      "date": "2021-10-11",
      "open": 94.25,
      "high": 115.46,
      "low": 93.11,
      "close": 115,
      "volume": 13504900
    },
    {
      "date": "2021-10-18",
      "open": 114.35,
      "high": 120.97,
      "low": 99.55,
      "close": 120.03,
      "volume": 7654500
    }
  ]
}
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Import via CLI

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

npx pocket-portfolio --import GTLB
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Need to archive this data?

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