What is ROIC and what does it measure?

Every business turns capital into profit. Lenders put in debt, shareholders put in equity, and managers spend that money on factories, software, inventory and acquisitions. ROIC asks how well they did it: for each dollar tied up in the business, how much operating profit comes back each year after tax?

NOPAT is measured before interest, and invested capital counts debt and equity together, so ROIC judges the business rather than the way it is financed. That makes it useful for comparing companies that carry different amounts of debt, and it is one of the measures long-term investors check; see the Warren Buffett strategy.

Return on invested capital (ROIC)
NOPAT ÷ invested capital, usually shown as a percentage: the after-tax operating profit a company earns on the money lenders and shareholders have put into the business.
NOPAT
Net operating profit after tax: operating profit × (1 − tax rate). It is roughly what the business would earn after tax if it had no debt and paid no interest.
Invested capital
The money tied up in running the business, usually debt + shareholders’ equity, often minus the cash the business does not need.

What is the ROIC formula? A worked example

ROIC = NOPAT ÷ invested capital. The drawing at the top of the page shows hypothetical XYZ, in millions of dollars, in three steps:

  1. NOPAT = operating profit × (1 − tax rate). XYZ: 250 × (1 − 20%) = 200. Operating profit comes from the income statement.
  2. Invested capital = debt + shareholders’ equity, both from the balance sheet. XYZ: 300 + 600 = 900.
  3. ROIC = 200 ÷ 900 ≈ 22.2%. Each dollar in the business earns about 22 cents a year after tax.

Why do websites show different ROIC numbers?

ROIC is not a line in a company’s accounts, so every analyst and data site builds its own. The biggest difference is cash. Cash in the bank earns little operating profit, so many analysts subtract the cash the business does not need. XYZ holds 240 of cash. Subtracting all of it gives invested capital of 900 − 240 = 660 and an ROIC of 200 ÷ 660 ≈ 30.3%: the same company in the same year, as in the drawing below.

Other choices move the number too: average capital over the year instead of the year-end figure, leases counted as debt, goodwill from acquisitions kept or removed, and the tax actually paid or a normal rate. None of these is wrong in itself. What matters is using one formula for every company and every year you compare.

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Two stacked columns for XYZ in $ millions, each with equity 600 at the bottom: on the left, debt 300 on top, total debt + equity 900; on the right, a hatched red block of cash −240 cut off by a dashed line, total minus all cash 660. A card beside them shows the same NOPAT of 200 and two results: 200 ÷ 900 = 22.2% and 200 ÷ 660 = 30.3%. A note reads two common definitions: compare companies with one formula.

ROIC vs ROE: what is the difference?

Return on equity is net income ÷ shareholders’ equity: profit after interest, on the owners’ money alone; see the return on equity lesson. ROIC counts all the money in the business and ignores interest, so debt changes ROE but not ROIC.

In the drawing below, the same hypothetical business has $1,000 million of capital, $150 million of operating profit and a 20% tax rate, so its NOPAT is 120. With no debt, net income is 120 on equity of 1,000: ROE 12%, ROIC 120 ÷ 1,000 = 12%. With 600 of debt at 5%, interest is 30, pre-tax profit 120, tax 24 and net income 96, on equity of 400: ROE 24%, ROIC still 12%.

ROE doubled, yet the business did not change; it only took on more risk. A high ROE next to a much lower ROIC is a reason to check the debt. XYZ shows a milder version: ROE of 180 ÷ 600 = 30% against an ROIC of about 22%.

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Two cards for the same business, in $ millions. A, no debt: a capital column of equity 1,000; operating profit 150, interest 0, tax −30, net income 120, ROE 12.0%, ROIC 12.0%. B, with debt: a column of debt 600 over equity 400; operating profit 150, interest −30, tax −24, net income 96, ROE 24.0% in red, ROIC 12.0%. A note reads debt moves ROE; the business, and its ROIC, stay the same.

ROIC vs cost of capital: when does growth create value?

Capital is not free. Lenders want interest, and shareholders want a return for their risk. The cost of capital is the blended return they require, often estimated as the weighted average cost of capital (WACC). It is an estimate rather than a number you can look up, and it is the same idea as the discount rate in a discounted cash flow valuation.

When ROIC is above the cost of capital, each dollar earns more than it costs. In the drawing below, two hypothetical companies each have 900 of capital and a 9% cost of capital, which comes to 81 a year. Company P earns 15%: NOPAT of 135 − 81 leaves +54 of economic profit. Company Q earns 6%: 54 − 81 = −27. Q reports a profit and still falls short of what its capital costs.

This is why growth is not always good. If Q invests another $100 million at the same 6%, it adds 6 of NOPAT against 9 of capital cost, so more sales can leave its owners worse off. P’s next $100 million at 15% adds 15 against 9.

Cost of capital (WACC)
The return lenders and shareholders require for financing a company, blended by how much of each it uses. It is estimated, not reported, and different analysts reach different figures.
Economic profit
NOPAT minus the cost of the capital used: (ROIC − cost of capital) × invested capital. A company can report a profit and still have a negative economic profit.

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Two bars against a dashed red line at a 9% cost of capital: company P at 15% stands above it in green, company Q at 6% stays below it in red. Two cards in $ millions: P shows NOPAT 135, cost of capital −81, economic profit +54; Q shows NOPAT 54, cost of capital −81, economic profit −27. A note reads capital of 900 each: growth helps only above the line.

What is a good ROIC, and how do you read it?

There is no universal good number, because capital needs differ: a software company may need little capital, while a utility or a steel maker needs a lot. Watch the direction as well as the level. In the drawing below, a hypothetical company’s NOPAT rises 50% in five years, from 100 to 150, while its capital grows 2.8 times, from 500 to 1,400, so ROIC falls from 20.0% to 10.7%. A profit chart alone hides this, and large acquisitions are one common cause, since the price paid goes into capital. Read ROIC in four ways:

  • Against the cost of capital: the gap, more than the level, shows whether growth adds value.
  • Against direct peers in the same industry, measured with the same formula.
  • Over five years or more: a steady ROIC says more than one strong year, and cyclical companies can look best at the top of a cycle.
  • Next to valuation: a fine ROIC bought at any price is not a bargain; see valuation ratios and the margin of safety.

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Five years, Y1 to Y5. On the left, green bars of NOPAT keep rising: 100, 115, 130, 140, 150, marked +50%. On the right, a red line of ROIC keeps falling: 20.0%, 17.7%, 15.3%, 12.7%, 10.7%. Under it, capital of 500, 650, 850, 1,100 and 1,400, marked ×2.8. A note reads profit rose, but capital rose faster.