Data sources

Where StockLab's numbers come from.

Every number on StockLab comes from one of these sources. StockLab never estimates or fills in missing numbers.

Latest closing prices: November 3, 2026

Last update: November 4, 2026

523 companies · 523 with prices

Updated every weekday night, after U.S. markets close.

  • Company financials

    SEC filings

    Revenue, profit, cash flow, debt, shares and revenue by segment come from the annual (10-K) and quarterly (10-Q) reports companies file with the U.S. Securities and Exchange Commission (SEC), in its public EDGAR database. Brazilian companies traded in New York file a yearly report (20-F); StockLab converts its figures from reais to dollars.

    SEC EDGAR

  • Stock prices

    Alpha Vantage

    Daily closing prices for every company, adjusted for stock splits. Also SPY, a fund that follows the S&P 500 (used for Beta), and the daily dollar-to-real exchange rate (used to convert Brazilian companies' figures). Prices are from the latest trading day's close, not live.

    Alpha Vantage

  • Which companies

    The S&P 500 list

    Which companies are in the S&P 500, with their sector and industry, comes from Wikipedia's list of S&P 500 companies, checked every night. The 20 Brazilian companies are the ones traded in New York that file yearly reports with the SEC.

    Wikipedia

  • Calculations and texts

    StockLab

    Ratios such as P/E, profit margins and Beta are calculated by StockLab from the figures above, using the formulas shown in each explanation. Company descriptions, explanations and Learn articles are written by StockLab.

When a number is missing

If a source doesn't have a number, or a number doesn't apply (for example, free cash flow for banks), StockLab never guesses: it shows a short reason instead, such as "Doesn't apply to banks" or "Not in the SEC data." P/E shows N/A when a company's earnings are zero or negative.

Names, logos and accuracy

Company names, tickers and logos belong to their owners and are used only to identify the companies. StockLab isn't affiliated with or endorsed by them, the SEC, S&P Dow Jones Indices or any stock exchange. Numbers can contain errors or be out of date; check the company's own reports before relying on them.