JADE Data Sources

Where the ranking data comes from.

Fundamental Data (S&P 500)

SEC EDGAR API

Official financial statements of US companies (10-K, 10-Q filings). Annual data: revenue, net income, balance sheet, cash flows. Source: data.sec.gov/api/xbrl/companyfacts/

Price and Quarterly Data

Yahoo Finance (yfinance)

Stock prices, market ratios (P/E, P/B), quarterly data, dividends, historical financials (up to 4 years). Used for both S&P 500 and GPW.

Fundamental Data (GPW)

Yahoo Finance (.WA)

For GPW companies we use the .WA suffix (e.g. PKN.WA, CDR.WA). Data in PLN. ISIN and company metadata from WIG20, mWIG40, sWIG80 index composition.

Smart Money

SEC EDGAR — Forms 13D, 13G, Form 4

Large institutional investor filings and insider transactions.

Update Frequency

Prices and market ratios: daily (cron at 06:00 UTC)
Fundamental data: daily (new 10-K reports auto-detected)
Smart Money: daily (EDGAR RSS feed)