Launch AppUtility
🗄️Developer Resource // JSON Endpoint

HAYW JSON Data API

Access 257 data points for HAYW spanning 5 years (2021–Feb 2, 2026). Optimized JSON format (37.6 KB).

Download as CSV

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

GET /api/tickers/HAYW/json● 200 OK (Live)
{
  "symbol": "HAYW",
  "timestamp": "2026-02-09T09:32:58.484Z",
  "price": 16.71,
  "change_24h": 4.568210262828538,
  "history_sample": [
    {
      "date": "2021-03-08",
      "open": 17,
      "high": 17.75,
      "low": 16.62,
      "close": 17,
      "volume": 10633800
    },
    {
      "date": "2021-03-15",
      "open": 17.16,
      "high": 17.98,
      "low": 16.74,
      "close": 17,
      "volume": 9795700
    }
  ]
}
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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 HAYW
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Need to archive this data?

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