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Not investment advice. Educational reading. See Disclaimer.
L.3 · BEGINNER · 3 MIN

ROIC: The Truth About Business Quality

ROIC measures how well a company uses ALL capital invested in it, not just equity. Two inputs drive it. NOPAT — Net Operating Profit After Tax — is operating income x (1 - tax rate): the profit the operations generate, ignoring how the company is financed. Invested Capital is all the money tied up in the business: equity plus debt, net of excess cash. Because it puts operating profit over TOTAL capital, ROIC compares cleanly across leveraged and unleveraged firms — which is why it is the single best metric for judging whether a business truly creates value.

Quiz · 5 questions ↓

The ROIC formula

ROIC = NOPAT / Invested Capital

Apple's ROIC, margin, and debt, live

AAPL — ROIC, Operating Margin, Debt/Equity. Open AAPL on the Ledge to see current values.

The value test: ROIC versus cost of capital

The magic number: if ROIC exceeds the company's cost of capital (WACC), every dollar invested creates more than a dollar of value. If ROIC is below WACC, the company is destroying value.

ROIC versus WACC: three outcomes

ROIC vs WACCMeaningStock Implication
ROIC 20% > WACC 10%Creates value: earns more than cost of capitalDeserves premium valuation
ROIC 8% = WACC 8%Breaks even on capitalFair value = book value
ROIC 5% < WACC 10%Destroys value: earns less than capital costsStock should trade below book

Judge a real company against its cost of capital

Check the ROIC metric for any ticker. Compare it to the company's WACC if available. Is this business creating or destroying value?

ROIC as the test of a durable moat

ROIC is the ultimate test of business quality. A company that consistently earns ROIC above 15% has a durable competitive advantage, which Buffett calls a moat.

Should a below-cost-of-capital business reinvest?

Company X has ROIC of 8% and WACC of 10%. Management wants to reinvest every dollar back into the business. As a shareholder, what do you prefer?
Check your understanding

Sit with the ideas.

A company has ROIC of 8% and its WACC is 10%. What does this mean?

Why:
Try this in paper trading

Identify the moat. Then size the position.

Pick a company. Articulate its moat in one sentence: switching costs, network effects, intangibles, cost advantage, or efficient scale. Paper-buy a position size proportional to your confidence in that moat surviving 10 years.

Open paper portfolio →

Practice mode — simulated trades, not investment advice.

Continue this lesson in the app →See it on a real ticker →