Valuation Methods: DCF, Multiples, Sum-of-the-Parts

Quick reference guide to the three core valuation approaches used in fundamental stock analysis.

1. Discounted Cash Flow (DCF)

Overview

DCF values a company as the present value of all future free cash flows (FCF). It's the most theoretically rigorous approach but requires disciplined assumptions about growth and terminal value.

Key Components

Explicit Forecast Period (typically 5-10 years)

• Revenue growth rates by segment or product line
• Operating margin trajectory (EBITDA or EBIT margins)
• Working capital requirements (changes in AR/AP/inventory)
• Capital expenditure requirements for growth
• Tax rate applicable to the business

Free Cash Flow Calculation

EBIT (or EBITDA)
× (1 - Tax Rate)
+ Depreciation & Amortization (non-cash)
- Capital Expenditures
- Change in Net Working Capital
= Unlevered Free Cash Flow

Discount Rate (WACC)

• Cost of Equity = Risk-free rate + Beta × Market risk premium
• Cost of Debt = Weighted average interest rate on debt
• WACC = (E/V × Cost of Equity) + (D/V × Cost of Debt × (1-Tax Rate))
  • Where E = Market value of equity, D = Market value of debt, V = E + D

Terminal Value Two approaches:

1. Perpetual Growth Method: Terminal Value = FCF(final year) × (1 + g) / (WACC - g)
   • g = perpetual growth rate (typically 2-3%)
2. Exit Multiple Method: Terminal Value = Final Year EBITDA × Exit Multiple
   • Use trading multiples of comparable companies

DCF Calculation

NPV = Σ[FCF_year / (1 + WACC)^year] + [Terminal Value / (1 + WACC)^terminal_year]
Intrinsic Value = NPV + Non-operating Assets - Net Debt

When to Use DCF

• Best for: Mature companies with predictable cash flows, or growth companies with clear margin trajectory
• Caution: Highly sensitive to terminal value assumptions; small changes in growth rate or WACC significantly impact valuation
• Common mistakes:
  • Over-optimistic revenue growth assumptions
  • Terminal growth rate > long-term GDP growth
  • Insufficient margin of safety due to compounding assumptions

Sensitivity Analysis

Always build sensitivity tables on key variables:

• WACC (±0.5-1.0%)
• Terminal growth rate (±0.5%)
• Terminal margin assumptions
• Revenue CAGR assumptions

2. Trading Multiples

Overview

Multiples value a company relative to comparable peers or historical average. Quick and intuitive but subject to market sentiment and valuation cycles.

Common Multiples

Earnings-Based

• P/E Ratio = Stock Price / Earnings Per Share

  • Forward P/E uses next 12 months or FY estimates
  • Trailing P/E uses actual recent earnings
  • Useful for mature, profitable companies

• PEG Ratio = P/E / Expected Earnings Growth Rate

  • Addresses growth-adjusted valuation
  • PEG < 1.0 may indicate undervaluation in growing companies

Revenue-Based

• EV/Sales = Enterprise Value / Annual Revenue
  • Most reliable for unprofitable or cyclical businesses
  • Less subject to accounting manipulation
  • Varies widely by industry and business model

EBITDA-Based

• EV/EBITDA = Enterprise Value / EBITDA
  • Commonly used for industrial/equipment companies
  • Removes impact of capital structure and accounting for D&A
  • Useful for M&A comparables

Free Cash Flow

• EV/FCF = Enterprise Value / Free Cash Flow
  • Most theoretically sound fundamental multiple
  • Less common due to FCF volatility

Methodology

Step 1: Select Comparable Companies

• Same or adjacent industry
• Similar business model and growth rates
• Comparable size/scale or specify size adjustment
• Exclude outliers and distressed companies

Step 2: Calculate Current Multiples

• Use trailing 12-month data or forward estimates
• Check if using run-rate or normalized earnings
• Note acquisition premiums and one-time items

Step 3: Determine Valuation Range

• Conservative: 25th percentile of peer multiples
• Base Case: Median peer multiples
• Optimistic: 75th percentile or premium justification

Step 4: Apply to Target Company

Valuation = Company Metric × Applied Multiple
Example: $500M Revenue × 3.0x EV/Sales = $1.5B Enterprise Value

Advantages & Limitations

Advantages:

• Quick reality check vs. DCF
• Market-based (reflects investor sentiment)
• Easy to communicate and defend

Limitations:

• Market sentiment can create valuation bubbles or crashes
• Doesn't capture company-specific growth trajectories
• Cyclical businesses distort multiples at peak/trough
• "Consensus" multiples may be wrong if consensus is wrong

3. Sum-of-the-Parts (SOTP)

Overview

Values a company by separately valuing each business segment or product line, then summing to total enterprise value. Used for conglomerates, platform companies, or businesses with distinct value drivers.

When to Use SOTP

• Platform companies with multiple distinct product lines (e.g., semiconductor supplier with analog, logic, memory segments)
• Conglomerates with unrelated businesses
• Companies in transition where certain segments are growth and others are cash generation
• Hidden value plays where sum of parts > market cap

Valuation by Segment

Step 1: Segment the Business

• Identify distinct business units
• Allocate revenue, EBITDA, assets to each
• Determine growth rates and margin profile by segment

Step 2: Value Each Segment

• Apply DCF for high-growth segments
• Apply multiples for mature/stable segments
• Use peer group multiples for each business type

Step 3: Aggregate & Adjust

SOTP Value = Segment 1 Value + Segment 2 Value + ... + Segment N Value
- Subtract: Corporate overhead not allocated
- Add: Cash and non-operating assets
- Subtract: Net debt
= Equity Value

Step 4: Discount for Conglomerate

• Apply "conglomerate discount" (typically 5-15%)
• Reflects the inefficiency of holding disparate businesses
• Or identify catalysts for separation/spin-off

Example: Semiconductor Supplier

Segment A: Memory (DRAM/NAND)

• Revenue: $2B (40% of total)
• Margin: 15% EBITDA
• Peers trade at 5.0x EV/EBITDA
• Segment Value = $300M EBITDA × 5.0x = $1.5B

Segment B: Logic/SoC

• Revenue: $2B (40% of total)
• Margin: 20% EBITDA
• Peers trade at 8.0x EV/EBITDA
• Segment Value = $400M EBITDA × 8.0x = $3.2B

Segment C: Analog/Mixed-Signal

• Revenue: $1B (20% of total)
• Margin: 25% EBITDA
• Peers trade at 12.0x EV/EBITDA
• Segment Value = $250M EBITDA × 12.0x = $3.0B

Total:

• Sum of parts = $1.5B + $3.2B + $3.0B = $7.7B
• Less: Net debt = -$0.5B
• Equity Value = $7.2B

Spinoff & Merger Arbitrage

SOTP is the foundation for:

• Spinoff analysis: Valuing separated companies if sum > current market cap
• M&A arbitrage: Assessing fair value in breakup scenarios
• Activist situations: Identifying value unlock opportunities

Integrating the Three Approaches

The Investment Analyst's Workflow

Phase 1: Multiples Reality Check

• Quick screen to ensure DCF output is in reasonable range
• Flag if SOTP > market cap = potential value unlock

Phase 2: DCF Deep Dive

• Build detailed model with explicit assumptions
• Stress-test key drivers
• Calculate intrinsic value distribution (optimistic/base/bear)

Phase 3: SOTP Validation

• For platform companies, ensure segment valuations are internally consistent
• Check for hidden value or hidden liabilities

Phase 4: Sensitivity Analysis

• Which assumptions drive intrinsic value most?
• What level of conviction do you have in each?
• What would change your mind?

Red Flags & Common Mistakes

DCF Red Flags:

• Terminal value > 70% of total value (too dependent on terminal assumptions)
• WACC below cost of equity (nonsensical)
• Terminal growth > 3% without justification
• Revenue growth assumptions above long-term GDP for mature markets

Multiples Red Flags:

• Significant deviation from peer multiples without clear explanation
• Using peak-earnings multiples on cyclical businesses
• Extreme multiples justified only by "narrative"

SOTP Red Flags:

• Segment growth rates inconsistent with overall market dynamics
• Heavy conglomerate discount applied without separation catalyst
• Double-counting corporate functions across segments

Learning Resources

Recommended Reading:

• Damodaran, Aswath — "Valuation: Measuring and Managing the Value of Companies"
• Rosenbaum & Pearl — "Investment Banking: Valuation, LBOs, M&A, and Financial Modeling"
• McKinsey — "Valuation: Measuring and Managing the Value of Companies"

Related Notes

• stock-picking-framework — How valuation fits into investment process
• research-sources-directory — Analysts and sources for comparable company data
• governance-art — Corporate structure impact on valuation

---

Last Updated: 2026-03-01 Purpose: Quick reference for valuation approaches used in equity research