Estimated study time: 45 minutes
Content:
Equity valuation involves estimating the intrinsic value of a company's shares to determine whether the market price represents a buying opportunity, a selling opportunity, or fair value. The three broad approaches to equity valuation are: (1) discounted cash flow (DCF) models, which value a company as the present value of future cash flows; (2) relative valuation (multiples-based), which compares the company to similar businesses; and (3) asset-based valuation, which focuses on the liquidation or replacement value of assets. Each approach has specific applications and limitations. DCF models are the theoretically sound approach but sensitive to assumptions; relative valuation is practical but requires identifying truly comparable companies; asset-based valuation is most appropriate for asset-intensive businesses or liquidation scenarios.
The Dividend Discount Model (DDM) is the simplest DCF equity valuation model: the value of a stock equals the present value of all expected future dividends. For a constant growth perpetuity (Gordon Growth Model): V0 = D1 / (re – g), where D1 is next year's expected dividend, re is the required return on equity, and g is the sustainable growth rate. For example, a stock expected to pay a $2 dividend next year, with a required return of 10% and a growth rate of 5%, is worth $2 / (0.10 – 0.05) = $40. The sustainable growth rate g = ROE × retention ratio = ROE × (1 – payout ratio). The model is appropriate for stable, dividend-paying firms but less applicable to growth companies that pay no dividends or to firms with rapidly changing growth profiles.
Price multiples are the most widely used valuation tools in practice due to their simplicity and comparability. Key multiples include: Price-to-Earnings (P/E) = Price / EPS; Price-to-Book (P/B) = Price / Book Value per Share; Price-to-Sales (P/S) = Price / Revenue per Share; Price-to-Cash-Flow = Price / CFO per Share; and Enterprise Value to EBITDA (EV/EBITDA = (Market Cap + Debt – Cash) / EBITDA). Leading P/E uses forward (expected) earnings; trailing P/E uses the most recent 12 months of reported earnings. The justified P/E can be derived from the Gordon Growth Model: P/E = payout ratio / (re – g). High P/E is justified by high growth, high payout, or low required return. EV/EBITDA is particularly useful for comparing companies with different capital structures and tax situations.
Enterprise value (EV) is the total value of the firm's operations, regardless of capital structure: EV = Market Cap + Total Debt + Preferred Stock + Minority Interest – Cash and Equivalents. EV represents what an acquirer would pay for the entire business, including the obligation to repay debt and offset by cash. It is paired with operating metrics (EBITDA, EBIT, revenue) that similarly represent the total business rather than just the equity claim. EV multiples allow more appropriate comparison across companies with different leverage levels — a highly levered company may appear cheap on P/E (because debt reduces the equity denominator) but expensive on EV/EBITDA (which reflects the total cost of ownership). The choice of multiple should align with the company's value drivers: P/B for financial firms, EV/EBITDA for capital-intensive businesses, P/S for early-stage or high-margin companies.
Key Terms:
Quiz Questions:
Q1. A company has a required return on equity of 11%, an expected dividend of $3.00 per share next year, and a sustainable growth rate of 6%. Using the Gordon Growth Model, what is the intrinsic value of the stock?
A) $50.00 B) $27.27 C) $60.00 D) $30.00
Answer: C — V0 = D1 / (re – g) = $3.00 / (0.11 – 0.06) = $3.00 / 0.05 = $60.00. If the stock is currently trading at $60, it is fairly valued. If it trades below $60, it is undervalued (buy signal); above $60, overvalued (sell signal). The model is highly sensitive to the difference (re – g) — small changes in g or re have large valuation impacts.
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Q2. A company has an ROE of 15%, a payout ratio of 40%, and a required return on equity of 12%. What is the justified P/E ratio using the Gordon Growth Model?
A) 8.9x B) 13.3x C) 11.1x D) 6.7x
Answer: A — Sustainable growth rate g = ROE × (1 – payout ratio) = 15% × 60% = 9%. Justified P/E = payout ratio / (re – g) = 0.40 / (0.12 – 0.09) = 0.40 / 0.03 = 13.33x. So the answer is B (13.3x). If the stock currently trades at a P/E below 13.3x, it is undervalued relative to this model's estimate. Note that a higher growth rate or lower required return directly increases the justified P/E.
Answer: B — g = 15% × (1 – 0.40) = 9%. Justified P/E = 0.40 / (0.12 – 0.09) = 0.40 / 0.03 = 13.3x. A stock trading at a P/E below this justified multiple appears undervalued relative to its fundamentals.
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Q3. Company A has a market capitalization of $2 billion, $800 million in debt, $200 million in cash, and EBITDA of $400 million. What is the EV/EBITDA multiple?
A) 5.0x B) 6.5x C) 7.0x D) 5.5x
Answer: B — EV = Market Cap + Debt – Cash = $2,000M + $800M – $200M = $2,600M. EV/EBITDA = $2,600M / $400M = 6.5x. Note that EV uses debt and subtracts cash — this is because an acquirer would inherit the debt (paying it off) and receive the cash. A P/E ratio for the same company would only reflect the equity value ($2B market cap) divided by net income — potentially giving a very different picture depending on the company's leverage level and tax rate.
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Q4. Why is EV/EBITDA generally preferred over P/E when comparing companies with very different capital structures?
A) EV/EBITDA is easier to calculate than P/E B) EV/EBITDA removes the distorting effects of interest expense and taxes, allowing comparison of operating performance independent of financing choices C) P/E only works for dividend-paying companies D) EBITDA is a more conservative earnings metric than net income
Answer: B — P/E reflects the equity value only (market cap) relative to earnings after interest and taxes — so a highly leveraged company with low EPS will have a high P/E that may falsely appear expensive, while an unlevered company with high EPS will look cheaper on P/E. EV/EBITDA compares the total firm value (equity + net debt) to pre-interest, pre-tax earnings, providing a true apples-to-apples comparison of operating economics independent of capital structure choices. This is critical for M&A analysis and cross-company comparisons.
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Q5. An analyst estimates a company's fair value using DDM and gets $75 per share, but using EV/EBITDA comps gets an implied value of $55 per share. The stock currently trades at $65. What is the BEST interpretation?
A) The stock is definitely overvalued because one model says it is worth only $55 B) The two models provide different estimates, and the analyst should reconcile the differences by examining assumptions and the applicability of each method C) The DDM result should be ignored since it assumes constant dividend growth D) The stock should be bought since it is below the DDM intrinsic value
Answer: B — Valuation models are estimates, not certainties. Different models make different assumptions and have different strengths — DDM is appropriate for stable dividend payers; comps may reflect market-wide misvaluation if the entire sector is mispriced. When models disagree, analysts should assess which model is most appropriate given the company's characteristics, examine sensitivity of each model's assumptions, and consider what explains the difference. A single model result should rarely be mechanically acted upon without triangulation.
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