Stock valuation methods: what each method measures and when to use it
Valuation methods disagree because they measure different parts of a business. Choosing the right method—and understanding when it can fail—is more important than forcing every company through the same formula.
- Discounted cash flow
- Earnings multiples
- Free-cash-flow multiples and yield
- EV/EBITDA
- Price-to-sales
- Asset/book value
- Dividend approaches
- Sum of the parts
- Reverse DCF
- How to reconcile methods
Why multiple methods exist
Different valuation methods measure different economic features. A DCF emphasizes future cash flows after reinvestment. P/E emphasizes accounting earnings. EV/EBITDA focuses on operating earnings before several non-cash and financing items. Asset-based methods emphasize the balance sheet. A method can be mathematically correct and still be a poor fit for the company.
| Method | Most useful when | Key inputs | Main failure mode |
|---|---|---|---|
| DCF / FCFF | Cash generation can be modeled reasonably | Growth, margins, reinvestment, WACC, terminal growth | Small long-term assumptions dominate value |
| P/E | Earnings are positive and representative | Normalized EPS, supported multiple | Ignores capital structure and cash conversion |
| P/FCF / FCF yield | Free cash flow is meaningful and normalized | Equity FCF, market cap | Current FCF can be distorted by working capital or capex timing |
| EV/EBITDA | Comparing operating businesses with different debt | Enterprise value, EBITDA | Can understate capital intensity |
| P/S | Earnings are temporarily negative but revenue is informative | Revenue, market cap | Revenue without margins can have little value |
| P/B / asset value | Balance-sheet assets are central to economics | Book value, asset quality | Accounting book value may not equal economic value |
| Dividend model | Dividends are stable and tied to sustainable earnings | Dividend, growth, required return | Payout policy may not reflect total cash-generation capacity |
| Sum of the parts | Distinct segments deserve different frameworks | Segment metrics and method per segment | Complexity and inconsistent assumptions |
1. Discounted cash flow (DCF)
DCF estimates the present value of future cash flows. In an FCFF approach, operating cash flow available to debt and equity holders is discounted at WACC, producing enterprise value; net debt and other claims are then reconciled to equity value. DCF is powerful because it forces assumptions into the open, but it is highly sensitive to long-run margins, reinvestment, discount rate, and terminal value.
Read the dedicated DCF valuation guide for formulas and sensitivity analysis.
2. Price-to-earnings (P/E)
P/E compares share price with earnings per share. It is easy to understand and useful for profitable businesses, but it should be applied to normalized earnings. A low P/E can reflect genuine undervaluation or a business whose earnings are about to decline; a high P/E can reflect overvaluation or credible growth and quality.
3. Free-cash-flow multiples and yield
Price-to-free-cash-flow and free-cash-flow yield shift attention from accounting earnings to cash after operating and capital needs. They can reveal poor cash conversion hidden by earnings. Normalize working-capital swings and capital spending before treating one period as representative.
4. EV/EBITDA
Enterprise value to EBITDA can help compare companies with different financing structures because enterprise value includes debt and equity. However, EBITDA is not free cash flow. A capital-intensive business can look inexpensive on EV/EBITDA while requiring substantial recurring capital expenditures.
5. Price-to-sales (P/S)
P/S can be useful when a growing business has negative or temporarily depressed earnings, but revenue is only the top of the economic funnel. Two companies with the same revenue multiple can deserve very different valuations if their gross margins, operating leverage, retention, capital needs, or paths to profitability differ.
6. Book value and asset-based methods
Price-to-book and adjusted net asset value can matter for financial institutions, real estate, resource companies, or liquidation-oriented analysis. The challenge is asset quality: accounting carrying value may differ from market value, and intangible competitive assets may be absent from the balance sheet.
7. Dividend discount approaches
Dividend models value expected future distributions to shareholders. They work best when dividends are stable and management's payout policy is closely connected to sustainable earnings and capital needs. They can undervalue a company that retains cash intelligently or uses buybacks instead of dividends.
8. Sum-of-the-parts (SOTP)
SOTP values major business segments separately using methods appropriate to each segment, then combines them and adjusts for corporate items, debt, cash, and other claims. It is useful for conglomerates but can create false precision if segment assumptions are inconsistent.
9. Reverse DCF and implied expectations
A reverse DCF starts with the market price and solves for the growth, margin, or cash-flow assumptions needed to justify it. This is especially useful when a conventional DCF appears extremely far from market price: instead of arguing over the answer, identify exactly what the market must be assuming.
10. Reconcile methods instead of averaging blindly
If supported methods produce materially different values, investigate the cause. Cash-flow methods may penalize heavy reinvestment; earnings methods may reward strong accounting profits; market multiples may reflect a sector-wide valuation regime. Treat the disagreement as a confidence signal and explain which assumptions drive it.
Choosing a method by company type
Stable cash-generative operating companies often support DCF plus earnings/FCF cross-checks. Banks and insurers often require equity-focused or book-value approaches. REITs commonly use funds-from-operations and net-asset-value concepts. Early-stage companies may require revenue, unit-economics, scenario, or milestone approaches until cash flow becomes forecastable. Commodity producers need cycle-normalized assumptions rather than spot-period profits.
From method to decision
Valuation is only one part of due diligence. Compare the estimated range with market price, review the company's financial and competitive quality, identify catalysts and risks, and decide what evidence would invalidate the thesis. The companion guide How to Tell if a Stock Is Undervalued turns valuation outputs into a practical screening framework.
Apply the framework to a stock or ETF
Simple AI Stock Valuation can generate a point-in-time research PDF that puts valuation beside fundamentals, technical context, risks, sources, assumptions, confidence, validation, and disclosures.
Educational only: This material is general information, not personalized financial, investment, tax, or legal advice. Valuation estimates are uncertain and can be wrong.