Return on Capital Employed (ROCE)

What it is

Return on Capital Employed measures how efficiently a business converts invested capital into profit. A ROCE of 20% means the company generates 20p of operating profit for every £1 of capital tied up in the business. At 10%, it earns 10p per pound. Below the cost of capital — typically around 8–10% for UK equities — the business is economically destroying value even if it reports positive profits.

This is the metric that separates genuinely good businesses from ones that merely look profitable.

How to calculate it

Where EBIT is earnings before interest and tax (operating profit), and Capital Employed is total assets minus current liabilities — or equivalently, fixed assets plus working capital.

Some analysts use net capital employed (adding back accumulated goodwill write-downs) for a more conservative view. Others use average capital employed across the year rather than the year-end figure to avoid distortions from acquisitions completed near the period end.

Why UK analysts love it

ROCE tells you something that profit margins and earnings growth cannot: whether the business model itself is structurally sound. A company with a 15% operating margin sounds impressive. But if it requires an enormous amount of capital to generate that margin — because it needs huge factories, vast inventories, or large receivables — the actual return on what's been invested may be mediocre.

Compare two companies:

• Company A: £100m operating profit, £500m capital employed → ROCE 20%
• Company B: £150m operating profit, £2,000m capital employed → ROCE 7.5%

Company B earns more absolute profit but is far less efficient with its capital. Every expansion it undertakes needs substantial new investment. Company A can grow with much less.

The compounding implications are dramatic. High-ROCE businesses reinvest their profits at high rates of return. Over twenty years, the difference in shareholder wealth creation is vast.

The Buffett / Munger connection

Charlie Munger has said the secret to investment returns is "find a business earning high returns on capital and don't get in the way." The UK's most celebrated investors — Terry Smith at Fundsmith, Nick Train at Lindsell Train — build portfolios almost exclusively of high-ROCE businesses and hold them for decades.

UK stocks that have sustained ROCE above 20% for ten or more years include names like Diageo, Halma, Spirax-Sarco, and Games Workshop. These companies tend to compound shareholder value through the cycle rather than being dependent on commodity prices, economic cycles, or interest rate movements.

The traps

Acquisitions distort it. A company that has made large acquisitions will carry significant goodwill on its balance sheet, which inflates capital employed and depresses ROCE. Some analysts strip goodwill to assess the "organic" ROCE of the underlying operations.

Asset-light businesses will always look better. A software company with negligible fixed assets will mechanically report very high ROCE, even if the business isn't particularly impressive. ROCE is most informative when comparing businesses with similar asset intensity — retailers versus retailers, manufacturers versus manufacturers.

Sector averages vary enormously. Banks, utilities, and infrastructure companies have structurally low ROCE because of regulatory capital requirements or the nature of the asset base. Don't penalise a utility for a 6% ROCE if the sector norm is 5–8%.

Not financial advice. Metrics should always be considered alongside qualitative business analysis.