From P/E ratio to free cash flow — understand what each number means before you put money to work.
Each article is grounded in real data — S&P 500 backtests, live screener results, and historical financials going back 30+ years.
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ROE measures how much profit a company earns for every dollar of shareholder equity — the primary quality signal Warren Buffett has used for 50 years.
The debt-to-equity ratio measures how much a company relies on borrowed money versus shareholder capital — the core signal for financial leverage and solvency risk.
Book value per share is the accounting value of a company's net assets divided by shares outstanding. It is the theoretical floor — what each share would be worth if the company were liquidated today. But for most modern businesses, the real value sits far above it.