Deep Dive: How to Value a Stock — P/E, EV/EBITDA, DCF and the Metrics That Actually Matter
Every stock has a price, but not every stock is worth what it costs. The difference between a stock's market price and its intrinsic value is the central question of investing — and answering it requires understanding the metrics that separate cheap stocks from genuinely undervalued ones. In February 2026, the gap between valuation approaches has never been more visible. Apple trades at a P/E ratio of 33.5x while generating $99 billion in annual free cash flow. Microsoft sits at 24.9x earnings despite being the world's third-largest company by market cap. Nvidia commands a 47x multiple as investors price in years of AI-driven growth. Same market, same economy, wildly different valuations — and each one tells a different story about what investors expect. This guide breaks down the five valuation metrics that matter most: P/E ratio, EV/EBITDA, price-to-free-cash-flow, discounted cash flow analysis, and dividend yield. For each metric, we'll explain what it measures, when it works, when it misleads, and how professional investors actually use it. Whether you're evaluating your first stock or stress-testing a portfolio, these are the tools that separate informed investing from speculation.