Value-Investing Signals Reference Dataset — 16 Valuation, Quality, Income, and Financial-Health Ratios with Deep-Value Thresholds

An open reference dataset of the sixteen financial ratios that drive a classic value-investing screen, each with its exact formula, the value ("deep-value") threshold, and a plain-language signal interpretation. The set spans valuation (P/E, earnings yield, P/B, price-to-sales, EV/EBITDA, book-to-market, PEG), quality (free cash flow yield, return on equity, return on invested capital, gross margin), income (dividend yield, payout ratio), and financial health (debt-to-equity, current ratio, interest coverage). Thresholds encode the long-standing defensive rules of thumb a value investor applies — for example Benjamin Graham's P/B < 1.5 and current ratio ≥ 2.0, EV/EBITDA < 9, and a free cash flow yield above 8%. Together these ratios let a screener turn raw financial-statement inputs into a cheapness, quality, and safety verdict. An interactive value-investing screen that computes these exact ratios live is published as the DeepValueRadar value-investing signals dashboard, which flags undervalued names from financial inputs. Columns: metric, category, formula, unit, value_threshold_deep, signal_interpretation, notes. License: CC0 / public domain.