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Stock Valuation Methods

Different valuation methods estimate a stock's intrinsic (fair) value from different angles - future cash flows, peer comparisons, growth-adjusted earnings, or dividends. No single method is "correct"; analysts typically triangulate across 2-3 methods and use the overlap as a margin-of-safety range.

Discounted Cash Flow (DCF)​

Estimates intrinsic value as the sum of all future free cash flows (FCF), discounted back to present value using the WACC.

Formula:

Intrinsic Value = Σ [FCFt / (1 + WACC)^t] + Terminal Value / (1 + WACC)^n
  • FCFt = Free cash flow projected in year t (typically projected 5-10 years)
  • Terminal Value = Value of all cash flows beyond the projection period, usually via the Gordon Growth formula: TV = FCFn × (1 + g) / (WACC - g)
  • g = perpetual growth rate (usually capped near long-term GDP growth, 2-4%)

Pros:

  • Grounded in fundamentals (actual cash generation), not market sentiment
  • Works for any company with predictable cash flows, regardless of peer availability
  • Forces explicit assumptions that can be stress-tested (growth, margins, discount rate)

Cons:

  • Highly sensitive to terminal value and discount rate assumptions - small changes swing the output wildly
  • Difficult for early-stage, cyclical, or negative-FCF businesses
  • "Garbage in, garbage out" - only as good as the underlying growth/margin forecasts

Trading Multiples (Comparable Company Analysis)​

Values a company relative to peers using standardized ratios, on the assumption that similar businesses should trade at similar multiples of earnings, sales, or cash flow.

Common multiples: P/E, EV/EBITDA, P/S, P/B, EV/Sales - see Valuation Metrics for detailed formulas and pros/cons of each ratio.

Method:

  1. Identify a peer group of comparable companies (similar sector, growth profile, margin structure)
  2. Calculate the peer group's median/average multiple (e.g., EV/EBITDA)
  3. Apply that multiple to the target company's own metric to derive implied value

Pros:

  • Fast, market-grounded (reflects what investors are actually paying today)
  • Requires fewer speculative long-term assumptions than DCF
  • Easy to communicate and benchmark

Cons:

  • Circular risk: if the entire peer group is overvalued, the target looks "fairly valued" relative to an overvalued anchor
  • Finding truly comparable peers (similar growth, margin, capital intensity) is often difficult
  • Ignores company-specific catalysts or risks not reflected in the peer set

Peter Lynch Fair Value​

A quick heuristic (popularized by legendary Fidelity Magellan manager Peter Lynch) for growth stocks, comparing the P/E ratio to the earnings growth rate rather than to peers or cash flows.

Formula:

Fair Value P/E = Earnings Growth Rate (+ Dividend Yield, for dividend payers)

PEG Ratio = P/E Ratio / Earnings Growth Rate
  • PEG ≈ 1: Fairly valued
  • PEG < 1: Potentially undervalued (P/E is cheap relative to growth)
  • PEG > 1: Potentially overvalued (paying a premium for growth)

Example: A stock growing earnings at 20%/year with a P/E of 15 has a PEG of 0.75 - by Lynch's heuristic, undervalued relative to its growth rate.

Pros:

  • Extremely fast, single-number gut-check for growth stocks
  • Popularized and validated across decades of Lynch's own market-beating track record
  • Complements (does not replace) deeper DCF/multiples analysis

Cons:

  • Growth rate estimates are themselves uncertain and easy to manipulate/over-extrapolate
  • Ignores capital structure, margins, and quality of earnings entirely
  • Breaks down for low/no-growth or negative-earnings companies

Earnings Power Value (EPV)​

Developed by Bruce Greenwald (Columbia Business School), EPV values a company based purely on its current, sustainable earning power - assuming zero future growth. It deliberately strips out speculative growth assumptions that dominate DCF models.

Formula:

EPV = Adjusted (Normalized) Earnings / Cost of Capital (WACC)
  • Adjusted Earnings = Reported earnings normalized for one-off items, cyclicality, and excess/deficient depreciation vs. maintenance capex
  • Comparing EPV to the DCF-derived "growth value" isolates how much of the current market price is being paid for growth versus existing earning power

Pros:

  • Conservative - avoids the terminal-value guesswork that dominates DCF outputs
  • Useful cross-check: if EPV > current market cap, the market may be undervaluing even the no-growth case
  • Forces a clean separation between "value of assets in place" and "value of future growth"

Cons:

  • Understates value for genuinely high-growth companies with real reinvestment opportunities
  • Still requires judgment to normalize earnings correctly
  • Less well-known/standardized than DCF or multiples, so harder to benchmark against published estimates

Dividend Discount Model (DDM)​

Values a stock as the present value of all expected future dividends. Best suited to stable, mature, dividend-paying companies (utilities, mature banks, consumer staples).

Formula (Gordon Growth Model - constant dividend growth):

Intrinsic Value = D1 / (r - g)
  • D1 = Expected dividend per share next year
  • r = Required rate of return (cost of equity)
  • g = Constant expected dividend growth rate (must be < r for the formula to be valid)

Multi-stage DDM projects dividends explicitly for a high-growth period, then applies the Gordon Growth formula for the stable terminal period - similar in structure to a DCF's explicit-forecast-plus-terminal-value approach.

Pros:

  • Directly ties value to actual cash returned to shareholders - no reliance on reinvestment or growth assumptions
  • Simple and transparent for mature, predictable dividend payers

Cons:

  • Useless for non-dividend-paying companies (most growth/tech stocks)
  • Highly sensitive to the (r - g) spread - a small change in either input swings value significantly
  • Ignores buybacks as an alternative form of shareholder return

Weighted Average Cost of Capital (WACC)​

Not a standalone valuation method, but the discount rate that DCF and EPV depend on - it represents a company's blended cost of financing (equity + debt), weighted by their proportion in the capital structure.

Formula:

WACC = (E/V x Re) + (D/V x Rd x (1 - Tax Rate))
  • E = Market value of equity; D = Market value of debt; V = E + D (total capital)
  • Re = Cost of equity (commonly estimated via CAPM: Re = Rf + Beta x (Market Risk Premium))
  • Rd = Cost of debt (effective interest rate on the company's debt)
  • (1 - Tax Rate) = Tax shield adjustment, since interest expense is tax-deductible while dividends are not

Why it matters: WACC is the hurdle rate a company's investments must clear to create shareholder value, and the discount rate used to bring future DCF/EPV cash flows to present value. A higher WACC (riskier business, more expensive capital) compresses intrinsic value estimates; a lower WACC inflates them - which is why DCF outputs are so sensitive to this single input.

Choosing a Method by Company Type​

Company TypeBest-Fit Method(s)Why
Mature, dividend-paying (utilities, staples)Dividend Discount Model, Trading MultiplesStable, predictable cash returns to shareholders
High-growth, reinvestment-heavyDCF, Peter Lynch (PEG)Growth is the dominant value driver; multiples/DDM understate it
Stable but low/no-growth ("cash cow")Earnings Power Value, Trading MultiplesNo growth premium to model; current earning power is the story
Cyclical (commodities, autos)Trading Multiples (normalized), EPVSingle-year DCF projections are unreliable across the cycle
Loss-making / pre-profitabilityTrading Multiples (P/S, EV/Sales)No earnings or dividends to discount; relative sales multiples are the fallback