🗄️Developer Resource // JSON Endpoint
DMAR JSON Data API
Access 267 data points for DMAR spanning 6 years (2021–Apr 22, 2026). Optimized JSON format (39.1 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 DMAR historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/DMAR/json● 200 OK (Live)Tired of exporting to Excel? Track DMAR and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "DMAR",
"timestamp": "2026-04-22T19:26:41.027Z",
"price": 43.91,
"change_24h": 0.390266876698979,
"history_sample": [
{
"date": "2021-03-22",
"open": 29.72,
"high": 29.96,
"low": 29.58,
"close": 29.95,
"volume": 1545200
},
{
"date": "2021-03-29",
"open": 29.98,
"high": 30.17,
"low": 29.9,
"close": 30.16,
"volume": 180600
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import DMAR🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync DMAR.json updates to your private Google Drive for backtesting and compliance.
Enable Sovereign SyncIncludes 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)