🗄️Developer Resource // JSON Endpoint

CMPR JSON Data API

Access 248 data points for CMPR spanning 21 years (2005–Apr 22, 2026). Optimized JSON format (36.3 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 CMPR historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.

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

Tired of exporting to Excel? Track CMPR and analyze your portfolio locally with Pocket Portfolio.

Start Free — Local First
{
  "symbol": "CMPR",
  "timestamp": "2026-04-22T19:20:44.248Z",
  "price": 82.64,
  "change_24h": 0.3399708596406036,
  "history_sample": [
    {
      "date": "2005-10-01",
      "open": 15.25,
      "high": 17.64,
      "low": 14,
      "close": 16.93,
      "volume": 4693300
    },
    {
      "date": "2005-11-01",
      "open": 16.85,
      "high": 19.74,
      "low": 16.54,
      "close": 18.16,
      "volume": 1555200
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CMPR
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync CMPR.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)
> system_ready. Initialize Sovereign reasoning for this asset?[Y]— open Terminal