🗄️Developer Resource // JSON Endpoint
DAIO JSON Data API
Absolute endpoints (copy‑paste)
JSON:
https://www.pocketportfolio.app/api/tickers/DAIO/json?range=maxCSV:
https://www.pocketportfolio.app/api/tickers/DAIO/csv?range=maxAccess 450 data points for DAIO spanning 38 years (1989–Jun 9, 2026). Optimized JSON format (65.9 KB).
Chart where your browser is the vault — wire this endpoint to the Terminal.
Minimal cloud, maximal local control — start from this stateless slice.
Download as CSV
Prefer CSV format? Download DAIO historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/DAIO/json● 200 OK (Live)Tired of exporting to Excel? Track DAIO and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "DAIO",
"timestamp": "2026-06-10T04:37:23.162Z",
"price": 3.63,
"change_24h": 0.8333333333333279,
"history_sample": [
{
"date": "1989-02-01",
"open": 8.38,
"high": 10.5,
"low": 8,
"close": 9,
"volume": 2034300
},
{
"date": "1989-03-01",
"open": 9,
"high": 10.13,
"low": 5.13,
"close": 5.88,
"volume": 2482400
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import DAIO🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync DAIO.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)