Price-to-Owner-Earnings Ratio

The price-to-owner-earnings ratio is a valuation metric popularized by Warren Buffett that divides a company’s stock price by its owner earnings—a derived figure equal to reported earnings plus depreciation and amortization, minus capital expenditures, minus working capital changes. It serves as an alternative to P/E and free cash flow multiples, emphasizing what an owner can withdraw annually without depleting the business.

Defining Owner Earnings

Owner earnings is not a standardized accounting figure; it is a construct derived by adjusting reported net income (or earnings per share). Buffett’s original definition, from his 1983 letter to shareholders, is: “Reported earnings plus depreciation, depletion, amortization, and certain other non-cash charges, less the amount of capital expenditures and additional working capital that the business requires.”

In formula form:

Owner Earnings = Net Income + Depreciation & Amortization − CapEx − Change in Working Capital

Each component has a logic:

• Net income is the starting point: the bottom-line accounting profit.
• Add back D&A (depreciation & amortization): These are non-cash charges that reduce reported earnings but do not represent cash spent in the current year. For a capital-intensive business, D&A can be substantial.
• Subtract capital expenditures: The cash the company must spend to maintain, upgrade, and replace assets to stay competitive. Unlike D&A, CapEx is real cash outflow and is not deducted in calculating net income.
• Subtract increases in working capital: Cash tied up in inventories, receivables, and payables. If a company grows and its receivables surge, cash is tied up and not available to the owner. If payables rise, less cash is tied up. The net change must be subtracted.

The result is owner earnings—the cash available to the owner (shareholder) to withdraw or reinvest, assuming the business is run efficiently and capital spending is sufficient to sustain operations.

Calculation From Reported Financials

To compute owner earnings, start with the income statement and cash flow statement:

1. Net income: From the income statement, bottom line.
2. Depreciation & amortization: From the cash flow statement, usually in the “adjustments to net income” section.
3. Capital expenditures: From the cash flow statement, under “investing activities.”
4. Change in working capital: Calculate as (Current Assets − Current Liabilities) at end of period minus (Current Assets − Current Liabilities) at start of period. Or extract from cash flow statement’s “changes in working capital” line.

Example: Company XYZ reports:

• Net income: $100 million
• Depreciation & amortization: $30 million
• Capital expenditures: $40 million
• Working capital increased by: $5 million

Owner earnings = $100 + $30 − $40 − $5 = $85 million

If XYZ has 10 million shares outstanding, owner earnings per share = $85 ÷ 10 = $8.50.

If the stock trades at $170, the price-to-owner-earnings ratio = $170 ÷ $8.50 = 20x.

Comparison With Price-to-Earnings Ratio

The standard price-to-earnings ratio divides price by net income per share, ignoring D&A and CapEx. Using the same company:

• Net income per share: $100 million ÷ 10 million shares = $10
• P/E ratio: $170 ÷ $10 = 17x

The P/E of 17x appears cheaper than the owner-earnings ratio of 20x. But this is misleading if the company’s D&A is high (say, a utility or a manufacturer with aging plants). D&A is a reminder that assets are wearing out and will eventually require replacement. The P/E ignores this reality. Owner earnings accounts for it by netting out both D&A and CapEx.

In industries with light capital requirements (software, fintech), CapEx is small and D&A is often lower than CapEx. Owner earnings and net income converge. In capital-heavy industries (railroads, utilities, mining), D&A can exceed CapEx, making owner earnings larger than net income, but still smaller than it should be if the company is underinvesting. For mature, stable businesses with normalized CapEx, owner earnings is a more honest view of sustainable withdrawable cash than net income alone.

Comparison With Free Cash Flow

Free cash flow is operating cash flow minus capital expenditures. It is reported or easily calculated from the cash flow statement. Why use owner earnings instead?

Owner earnings strips to fundamentals: earnings adjusted for necessary investment. Free cash flow includes all cash-based adjustments—changes in payables, receivables, inventory, and debt. For a company with volatile working capital (say, a seasonal business where receivables spike in the pre-holiday season), free cash flow swings widely. Owner earnings smooths this by using net income as the base and adjusting only for the normalized change in working capital.

Additionally, free cash flow can be inflated by paying suppliers slower (increasing payables), which temporarily boosts cash but is not sustainable. Owner earnings avoids this trap by focusing on economic reality: earnings, non-cash charges, and necessary capital investment.

However, owner earnings requires more judgment. CapEx normalization can be subjective. What is the “right” level? Is a refinery that spent $200 million on maintenance this year underinvesting or overinvesting? Should next year’s CapEx be $200 million again, or $150 million? Owner earnings depends on getting this right.

Practical Considerations and Limits

Normalized CapEx: A major assumption is that CapEx is sustainable and normalized. A company in a growth phase might spend 15% of sales on CapEx; a mature company might spend 3%. Buffett’s method works best when CapEx is stable. For a growing company that has lumpy, discretionary CapEx (a biotech or a real-estate developer), owner earnings is less reliable.

Working capital assumption: The change in working capital used should reflect normalized operating needs. A one-time surge in receivables due to a large customer contract should be smoothed out; using year-to-year changes can be noisy. Analysts sometimes use a multi-year average.

Acquisitions and goodwill: If a company acquires another and records goodwill, that goodwill is amortized. The amortization is added back in owner earnings. But the acquisition cost is a real cash outflow that happened in a prior year and may not be reflected in current-year CapEx. This can make owner earnings misleading for companies with acquisition history.

Currency and one-time items: Foreign currency effects and one-time gains/losses muddy the calculation. Owner earnings should use normalized earnings, stripping out non-recurring items.

Buffett’s Use and Philosophy

Buffett uses owner earnings as his primary framework for valuing stocks and calculating intrinsic value. He discounts future owner earnings at a required return rate (often 8–12% for equities, reflective of long-term bond yields and the equity risk premium) to arrive at a present value. A stock trading below its intrinsic value is attractive; one trading above is not.

This approach reflects Buffett’s philosophy: a stock is a claim on the company’s future cash generation, not a ticker to trade. Owner earnings answers the essential question: how much cash can an owner withdraw sustainably? A company with high owner earnings and a low price-to-owner-earnings ratio is attractive. One with low owner earnings or a high multiple is not.

Buffett’s method also emphasizes simplicity over precision. Rather than building elaborate discounted cash flow models with 20-year forecasts, owner earnings distills the question to one figure: given current profitability and required investment, what is the business worth?

See also