DCF valuation · Stock analysis
Intrinsic Value: Definition, Formula & How to Calculate It
Intrinsic value is the estimate that separates investing from speculating. When you know what a business is worth independent of its market price, you can act on the gap rather than react to price movement.
Intrinsic value is the estimated true worth of a stock based on fundamentals — independent of its current market price. Investors calculate it by discounting projected future cash flows back to today: IV = Σ(FCFt / (1+r)^t) + Terminal Value / (1+r)^n. When intrinsic value exceeds market price, the stock may be undervalued — that gap is the margin of safety.
Why Intrinsic Value Matters
Market price reflects what buyers and sellers agree on right now. Intrinsic value reflects what a business is actually worth based on the cash it will generate over its lifetime. The two diverge constantly — and the gap is where opportunity lives.
The intellectual foundation of value investing rests on this insight: Mr. Market is volatile, emotional, and frequently wrong. A disciplined investor does the work to estimate intrinsic value independently, then buys when price is below that estimate and sells when price exceeds it. The market price is an input to the decision, not the answer.
This framework demands intellectual honesty. Intrinsic value is an estimate, not a fact. Garbage inputs produce garbage outputs. But a well-reasoned estimate — even a wide range — is far more useful than anchoring to recent price action or analyst price targets that are themselves anchored to price.
How to Calculate Intrinsic Value (DCF Method)
The discounted cash flow (DCF) method is the most rigorous approach to intrinsic value. Here is a step-by-step walkthrough using Apple (AAPL) with simplified FY2024 numbers.
Step 1: Estimate Free Cash Flow
Apple generated approximately $108B in free cash flow in FY2024. FCF = operating cash flow minus capital expenditures. This is the baseline for your projections.
Step 2: Choose a Discount Rate (WACC)
The discount rate reflects the opportunity cost of capital and the risk of the investment. For AAPL, a reasonable WACC is approximately 9%. See the WACC guide for a full breakdown of how to calculate it.
Step 3: Project 5-Year Cash Flows
Assume a conservative 6% annual FCF growth rate for AAPL. The projected FCF stream:
- Year 1: $108B × 1.06
- $114.5B → PV = $105.0B
- Year 2: $114.5B × 1.06
- $121.3B → PV = $102.1B
- Year 3: $121.3B × 1.06
- $128.5B → PV = $99.2B
- Year 4: $128.5B × 1.06
- $136.2B → PV = $96.4B
- Year 5: $136.2B × 1.06
- $144.4B → PV = $93.8B
- Sum of discounted FCFs
- $496.5B
Step 4: Add Terminal Value
Terminal value captures all cash flows beyond year 5. Using the Gordon Growth Model with a 3% perpetuity growth rate: TV = Year 5 FCF × (1 + g) / (WACC − g) = $144.4B × 1.03 / (0.09 − 0.03) = $2,479B. Discounted to today: $2,479B / (1.09)^5 = $1,611B. See the terminal value guide for a full explanation of perpetuity growth vs. exit multiple methods.
Step 5: Divide by Shares Outstanding
- PV of explicit FCFs (Years 1–5)
- $496.5B
- PV of terminal value
- $1,611B
- Enterprise value
- $2,107.5B
- Less: net debt (approx.)
- −$67B
- Equity value
- $2,040.5B
- Shares outstanding: ~15.4B → Intrinsic value per share
- ~$132
This simplified DCF yields an intrinsic value of roughly $132 per share for AAPL at conservative assumptions. Change the growth rate or WACC by a single percentage point and the answer moves 20–30% — which is why sensitivity tables matter. The intrinsic value calculator runs this model live for any ticker with a built-in sensitivity grid.
Other Valuation Methods
Dividend Discount Model (DDM) — For dividend-paying stocks with a stable payout history, intrinsic value equals the present value of all future dividends: IV = D1 / (r − g), where D1 is next year's expected dividend, r is the required return, and g is the dividend growth rate. DDM works best for mature utilities, banks, and consumer staples where dividends are predictable. It fails for growth companies that reinvest all earnings.
P/E-Based Method — A simpler approximation: multiply normalized earnings per share by a fair P/E multiple. If AAPL earns $7 per share and you believe 20× is a fair multiple for its growth and quality profile, intrinsic value is roughly $140. The hard part is justifying the multiple. This method is fast and useful for a quick sanity check but lacks the rigor of a DCF because it bakes the discount rate and growth assumptions into a single number.
Book Value (Asset-Based) — Intrinsic value equals total assets minus total liabilities per share. This floor estimate is most relevant for asset-heavy businesses (banks, insurers, real estate) or companies in financial distress. For a technology or consumer brand company where the value lies in intangibles, book value dramatically understates true worth and is a poor primary method.
Margin of Safety
Intrinsic value is an estimate, not a precise answer. Margin of safety — the gap between intrinsic value and market price — is your cushion against errors in the estimate and surprises in the business. The wider the margin, the more room you have to be wrong and still come out ahead.
A 25% margin of safety on a $80 intrinsic value means you pay no more than $60 per share. If your DCF estimate is off by 15% and the business is actually worth $68, you still have a built-in buffer. Use the margin of safety calculator to compute the exact discount for any ticker.
Intrinsic Value Limitations
- Garbage in, garbage out. The growth rate assumption dominates the output. A 2 percentage point shift in the 5-year FCF growth rate can swing intrinsic value by 30–40%. Anchor your assumptions to historical FCF growth, analyst consensus, and industry base rates — not to what makes the stock look attractive.
- Discount rate sensitivity. A 1 percentage point change in WACC typically moves intrinsic value 15–25%. Because WACC itself is estimated (cost of equity from CAPM, debt spreads from credit ratings), the final number has embedded uncertainty. Always run a sensitivity table across discount rate assumptions.
- Works best for stable, predictable businesses. DCF intrinsic value is most reliable for companies with long operating histories, predictable cash flows, and modest capital requirements — think consumer staples, industrials, and established technology. Early-stage companies, cyclicals, and financial firms with opaque balance sheets are far harder to value this way.
- Terminal value dominates. In a standard 5-year DCF, the terminal value often represents 60–80% of total intrinsic value. A small change in the perpetuity growth rate has an outsized effect on the answer. The terminal value guide explains how to sanity-check this figure using exit multiples.