Owner Earnings Yield: Buffett's Cash Economics Metric

Key Takeaways

• Owner earnings yield equals owner earnings divided by market cap, expressed as a percentage.
• Owner earnings, defined by Buffett in 1986, equal net income plus non-cash charges minus maintenance capex and any working capital required to sustain the business.
• The hard part is estimating maintenance capex; firms rarely disclose it explicitly.
• The metric rewards capital-light, predictable businesses and penalizes ones that need heavy ongoing reinvestment.

What It Is

The owner earnings yield is one of the cleanest cash-economics multiples available to a long-term investor. The numerator, owner earnings, was defined by Buffett in his 1986 letter to Berkshire Hathaway shareholders as reported earnings plus depreciation, depletion, amortization, and other non-cash charges, minus the average annual capital expenditures needed to keep the business at its current competitive position and unit volume.

The denominator is market capitalization, sometimes replaced by enterprise value when comparing across firms with different leverage. The result is a percentage that answers "how much real, distributable cash am I getting per dollar invested."

The Intuition

Reported earnings include depreciation, which is a non-cash charge based on past purchase prices and accounting choices. Free cash flow subtracts total capex, lumping growth capex together with the spending needed just to keep the lights on. Buffett wanted a number that captured what a private owner could withdraw without harming the business.

If maintenance capex is well below depreciation, the firm is a hidden cash machine. If maintenance capex exceeds depreciation, the firm is quietly consuming capital that the income statement does not show. Owner earnings yield surfaces both situations.

How It Works

The formula is:

Owner Earnings Yield = Owner Earnings / Market Capitalization

Where:

Owner Earnings = Net Income
               + Depreciation, Depletion, Amortization
               + Other Non-cash Charges
               - Average Maintenance Capex
               - Required Working Capital Investment

Buffett emphasized that the average annual capitalized expenditure figure should reflect what is needed to maintain the firm's long-term competitive position and unit volume, not its total reported capex. He also noted that maintenance capex is "necessarily a guess."

Three estimation methods are common. First, use a multi-year average of reported capex if you believe the firm is steady-state. Second, scale depreciation up or down for inflation in asset prices and unit volume changes. Third, ask management directly in proxy materials or earnings calls and triangulate against segment disclosures.

Damodaran's free cash flow framework arrives at a similar figure through a different door, since he separates capex into maintenance and growth components when building intrinsic-value DCFs. The owner earnings construction makes that split explicit at the income-statement level rather than burying it inside a valuation model.

Worked Example

A mature consumer products firm has trailing net income of $800 million, depreciation of $300 million, stock-based compensation of $40 million, and total capex of $260 million. You estimate maintenance capex at $200 million based on a five-year average and stable unit volume. Working capital has grown by $20 million in line with revenue.

• Owner earnings = 800 + 300 - 200 - 40 - 20 = $840 million
• Market capitalization = $14 billion
• Owner earnings yield = 840 / 14,000 = 6.0 percent

Compare to:

• Reported earnings yield = 800 / 14,000 = 5.7 percent
• Simple FCF yield = (800 + 300 - 260) / 14,000 = 6.0 percent

Owner earnings sit slightly above both because part of total capex was growth spending that does not need to be netted against owner economics. If you later discover that maintenance capex was actually $260 million, owner earnings drop to $780 million and the yield falls to 5.6 percent, which is a meaningful difference in any peer comparison.

Common Mistakes

1. Treating total capex as maintenance capex. This understates owner earnings whenever the firm is reinvesting for growth. Always separate the two when possible.
2. Ignoring working capital growth. Buffett explicitly required deducting the working capital increase needed to sustain current unit volume. Growing firms can absorb large working capital without it showing up in capex.
3. Forgetting stock-based compensation. SBC is non-cash but dilutive. Deduct it as a real cost when estimating owner earnings, or use a diluted share count.
4. Single-year point estimates. Maintenance capex needs a multi-year base. One year of deferral or one big growth project can swing the figure dramatically.
5. Mismatching to enterprise versus equity value. Owner earnings as Buffett defined them are an equity-holder figure. Use market cap, not enterprise value, unless you also strip interest and tax differences.

Frequently Asked Questions

What is owner earnings yield in simple terms? It is the percentage of your investment you would expect to receive in cash each year if you owned the whole business and could pull out whatever was not needed to keep it competitive. The denominator is market cap; the numerator is Buffett's owner earnings.

How does owner earnings yield affect investment decisions? Value investors prefer businesses with a high owner earnings yield and low maintenance capex relative to depreciation, since that combination signals durable cash generation. A high reported earnings yield with a low owner earnings yield is a warning that accounting flatters the firm.

What is a real-world example of owner earnings yield? Buffett's investment in See's Candies is the textbook case: low maintenance capex relative to depreciation, so owner earnings exceeded reported earnings, and the owner earnings yield was much higher than the price-to-earnings ratio implied.

How can investors use owner earnings yield effectively? Estimate maintenance capex conservatively, average it over three to five years, deduct stock-based compensation, and compare the result to bond yields and to peer owner earnings yields. Use it as one of several yield-based checks, not as a stand-alone screen.

How is owner earnings yield different from free cash flow yield? Free cash flow yield deducts total capex; owner earnings yield deducts only maintenance capex. In a growing firm, owner earnings yield is the higher number because growth capex is investment rather than a cost of staying in business.

Sources

1. Buffett, W. Chairman's Letter, 1986. Berkshire Hathaway. https://www.berkshirehathaway.com/letters/1986.html
2. Damodaran, A. Earnings and Cash Flows: A Primer on Free Cash Flows. NYU Stern. https://pages.stern.nyu.edu/~adamodar/pdfiles/blog/FreeCF.pdf
3. CFA Institute. Free Cash Flow Valuation. https://www.cfainstitute.org/insights/professional-learning/refresher-readings/2026/free-cash-flow-valuation
4. US Securities and Exchange Commission. Form 10-K Filing Guidance. https://www.sec.gov/files/form10-k.pdf

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.