Economic profit as NOPAT minus the capital charge
Economic Profit = NOPAT - (WACC x Invested Capital)
GAAP net income versus economic profit
| What the Metric Shows | GAAP Net Income | Economic Profit |
|---|---|---|
| Cost of debt | Charged (interest expense) | Charged (in WACC) |
| Cost of equity | NOT charged -- invisible to the income statement | Charged (in WACC) |
| Capital intensity penalty | None -- a high-capital business and a low-capital business with the same earnings look identical | Captured -- the capital charge scales with invested capital |
| Reinvestment quality | Implicit and hard to read | Explicit -- growth at sub-WACC ROIC drives economic profit down even as earnings rise |
The silent cost of equity, made visible
The cost of equity is the silent line missing from every GAAP income statement. Equity capital is not free; shareholders demand a return that compensates them for the risk of holding the stock. Economic profit makes that demand visible by deducting it directly. The lifelong investor's reflex: never let an earnings headline travel without the economic-profit check.
Track economic profit year over year
Pull NOPAT, invested capital, and an estimated WACC for a mature company in your portfolio. Compute the capital charge (WACC times invested capital) and subtract it from NOPAT. Run the same calculation for the prior year. Is economic profit rising or falling? If it is rising while GAAP earnings are flat, the business is becoming more capital-efficient. If it is falling while GAAP earnings are rising, the company is growing the wrong way -- earnings are coming from capital deployment that does not clear the hurdle.
Reading EPS growth against flat economic profit
A regional bank reports five consecutive years of growing GAAP earnings per share. Invested capital has more than doubled over the same period, mostly through retained earnings and a secondary equity issuance. Economic profit has been flat to slightly negative each year. What is the most disciplined interpretation?
How earnings grow while value shrinks
Check your understanding
Sit with the ideas.
A mature industrial company reports record GAAP net income of $400M, up 8% year-over-year. Invested capital is $5,000M and WACC is 9%. NOPAT (after-tax operating profit before financing effects) is $420M. What does the economic profit calculation tell a lifelong investor that the GAAP headline does not?
Why: