Launch AppUtility
🗄️Developer Resource // JSON Endpoint

HYIN JSON Data API

Access 253 data points for HYIN spanning 5 years (2021–Mar 2, 2026). Optimized JSON format (37.1 KB).

Download as CSV

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

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

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{
  "symbol": "HYIN",
  "timestamp": "2026-03-09T07:25:15.681Z",
  "price": 14.59,
  "change_24h": -1.4854827819041232,
  "history_sample": [
    {
      "date": "2021-05-03",
      "open": 24.92,
      "high": 25.07,
      "low": 24.66,
      "close": 24.99,
      "volume": 10100
    },
    {
      "date": "2021-05-10",
      "open": 25.56,
      "high": 25.56,
      "low": 23.71,
      "close": 24.61,
      "volume": 53100
    }
  ]
}
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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 HYIN
🛡️

Need to archive this data?

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