Value Creation: ROIC versus WACC
A firm creates value only when it earns a return on invested capital (ROIC) above its weighted average cost of capital (WACC). The gap is the economic spread, and multiplying it by invested capital gives economic profit, the cash-economic surplus left after charging for every dollar of debt and equity. ROIC is built from NOPAT, an after-tax operating measure, so it stays distinct from accounting net income, which mixes in financing and one-off items. When ROIC equals WACC the firm merely earns its keep, and when ROIC sits below WACC, growth actively destroys value.
Try it yourself
A firm creates value only when ROIC > WACC. With constant growth g, NOPAT and a constant ROIC, the plough-back rate is g / ROIC and the value is V = NOPAT·(1 − g/ROIC) / (WACC − g). Compare it with the no-growth value NOPAT / WACC: growth lifts the value above the benchmark only when ROIC clears the cost of capital, and drags it below when ROIC falls short.
Hold g fixed and slide ROIC across WACC. Above WACC the gold curve rises with g; below it the curve turns rose and falls; exactly at WACC it lies flat on the no-growth line.
Reflect: a fast-growing firm with ROIC below its WACC is worth less than if it stopped growing entirely. Why, then, do markets sometimes reward growth for its own sake, and how long can a firm sustain ROIC above WACC before competition closes the gap?
Why it matters
Imagine two bakeries that each clear a healthy accounting profit. One ties up very little capital to do it, the other has sunk a fortune into ovens and shopfronts. Profit alone hides that difference. ROIC scales the operating return by the capital it took to earn, and WACC is the rent investors charge on that capital. Only the spread between them tells you whether the business is genuinely richer for its owners or just busy. A high reported profit on a bloated capital base can still be value destruction.
Formulas
Worked examples
A division has invested capital of A$50m, NOPAT of A$5m and a WACC of 8 percent. Is it creating value?
ROIC is A$5m over A$50m, which is 10 percent. The spread over the 8 percent WACC is 2 percentage points. Economic profit is 0.02 times A$50m, which is A$1m a year. The division earns A$1m more than the cost of the capital it consumes, so it is creating value. Had WACC been 11 percent, the spread would turn negative and the same A$5m of operating profit would be destroying roughly A$0.5m of value each year.
Common mistakes
- ✗Any positive accounting profit means value is being created. Profit must clear the full cost of capital, including the cost of equity. A firm can report net income yet still earn less than WACC and destroy value.
- ✗ROIC and return on equity are the same thing. ROIC uses after-tax operating profit over all invested capital, while return on equity is levered and mixes in financing, so the two can diverge sharply.
- ✗NOPAT equals net income. NOPAT strips out interest and financing effects to isolate operating performance, whereas net income is after interest and includes one-off items.
- ✗Growth is always good. If ROIC is below WACC, growing faster invests more capital at a loss and destroys value more quickly, not less.
Revision bullets
- •Value is created only when ROIC exceeds WACC
- •Economic profit equals the spread times invested capital
- •ROIC uses NOPAT, an operating cash-economic figure, not net income
- •Invested capital is equity plus interest-bearing debt, excluding payables and accruals
- •When ROIC equals WACC the firm only covers its capital charge
- •If ROIC is below WACC, growth accelerates value destruction
Quick check
A firm earns a ROIC of 9 percent against a WACC of 12 percent. This tells you the firm is
Economic profit is best calculated as
Connected topics
Sources
- Koller, Goedhart & Wessels (2020)Koller, T., Goedhart, M., & Wessels, D. Valuation: Measuring and Managing the Value of Companies. 7th ed. McKinsey & Company / Wiley, 2020.States the central value principle that value is created only when ROIC exceeds the cost of capital.
- Titman & Martin, Ch. 7Titman, S., & Martin, J. D. Valuation: The Art and Science of Corporate Investment Decisions. Pearson.Contrasts reported accounting earnings with true economic value creation in project selection.