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🗄️Developer Resource // JSON Endpoint

CMSA JSON Data API

Access 419 data points for CMSA spanning 8 years (2018–Mar 10, 2026). Optimized JSON format (61.4 KB).

Download as CSV

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

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

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{
  "symbol": "CMSA",
  "timestamp": "2026-03-11T12:11:49.805Z",
  "price": 22.07,
  "change_24h": 0.27260336210812686,
  "history_sample": [
    {
      "date": "2018-03-12",
      "open": 25.05,
      "high": 25.2,
      "low": 24.97,
      "close": 25.12,
      "volume": 956900
    },
    {
      "date": "2018-03-19",
      "open": 25.05,
      "high": 25.19,
      "low": 24.98,
      "close": 25.05,
      "volume": 501200
    }
  ]
}
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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 CMSA
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Need to archive this data?

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