The free cash flow yield formula
Free cash flow = cash from operations − capital expenditure
FCF yield (equity) = free cash flow ÷ market capitalisation
FCF yield (firm) = free cash flow ÷ enterprise value
Both lines come straight from the cash flow statement, which makes the ratio harder to flatter than earnings-based ones. The equity version asks what cash the shareholders' money buys; the firm version adds net debt to the price and asks what cash the whole capital structure buys, which is the fairer comparison between companies with different leverage.
Harbor Foods, a fictional packaged-food company, produced $100 million of free cash flow last year. With 50 million shares at $30 its market capitalisation is $1,500 million, so its equity FCF yield is 100 ÷ 1,500 = 6.7%. Add its $200 million of net debt and the enterprise value is $1,700 million, for a firm FCF yield of 5.9%. The inverse of the yield is a multiple: 6.7% is 15 times free cash flow, the cash-based cousin of a P/E.
Why cash rather than earnings
Net income is an opinion about a period; cash is a fact. Depreciation schedules, revenue recognition, provisions and write-downs all pass through earnings but not through cash, so a company can report rising profits while its bank balance falls. Free cash flow also charges the business for the capital spending it needs to keep running, which earnings only reflect gradually through depreciation. A capital-hungry business with a respectable P/E can have a thin FCF yield once the spending is counted, and that is the number that decides what the owners actually receive.
The ratio has blind spots of its own. Capital spending is lumpy, so one year of heavy investment can make a healthy company look cash-poor and one year of underinvestment can make a struggling one look rich. Working-capital swings move operating cash flow from quarter to quarter. And stock-based compensation is a real cost to shareholders that cash flow ignores entirely, because no cash leaves the company; a business that pays its staff in shares can show a generous FCF yield while diluting the people who own it. The stock screener guide covers the adjustments.
Reading the number: a yield plus growth
Because it is a percentage of price, the FCF yield can be compared with other returns. A rough rule: the return a stock offers is approximately its free cash flow yield plus the rate at which that cash flow will grow. Harbor at 6.7% with 5% growth offers something near 11–12% a year, before any change in the multiple. A ten-year government bond yielding 4% offers 4% with no growth and far less risk. The gap between the two is the premium for owning a business, and whether it is enough is the investor's judgment.
The same rule explains why a low yield is not automatically expensive. Zenith Software, a fictional company, generates $50 million of free cash flow on a $2,500 million market capitalisation, a 2.0% yield. If its cash flow really grows 20% a year, it offers 2% + 20% = 22%, far more than Harbor. If growth turns out to be 8%, it offers 10%, slightly less than Harbor, at a much higher price. The low yield is a claim about growth, and the implied growth rate article shows how to test the claim.
| Harbor Foods | Zenith Software | |
|---|---|---|
| Free cash flow | $100m | $50m |
| Market capitalisation | $1,500m | $2,500m |
| FCF yield | 6.7% | 2.0% |
| Growth needed to offer about 12% a year | about 5% | about 10% |
Screening with free cash flow yield
A high FCF yield on its own finds cheap stocks, and cheap stocks include the ones that deserve to be. A screen that works pairs the yield with evidence that the cash will continue:
- FCF yield above a floor, for example 5% or 6% on the firm version, set with reference to bond yields at the time.
- A quality rule, such as return on invested capital above 10% for several years, so that the cheapness is not the market pricing a decline. The what is ROIC article explains the measure and the ROIC calculator computes it.
- A multi-year average of free cash flow rather than a single year, to smooth capital spending and working capital.
- A balance-sheet check, such as net debt below three times free cash flow, because a high yield on a fragile balance sheet is often the market expecting dilution or distress.
- Sector sense. Banks and insurers do not have a meaningful free cash flow; exclude them and compare within industries elsewhere.
The value stock screener article builds a complete rule set around these, and VALYSTR's screener runs them on numbers taken from companies' own filings.
The traps a high yield can hide
- Borrowed cash flow. A one-off working-capital release, a tax refund or a delayed supplier payment lifts operating cash flow for a year and then reverses. Read the cash flow statement, not just the total.
- Underinvestment. Capital spending running below depreciation for several years can mean the company is harvesting assets it will later have to replace at a cost the yield does not show.
- Stock-based pay. Subtract it, or at least look at the yield with and without it; the gap is the dilution shareholders are paying for.
- Peak cash flow. For a cyclical company the yield is highest at the top of the cycle, exactly when it is least sustainable. Average through the cycle. The value trap article covers the pattern.
- Lease payments. Since lease accounting changed, part of rent is reported as a financing outflow rather than an operating one, which flatters operating cash flow for retailers and airlines. Treat lease principal as an operating cost when comparing companies.
Variants: owner earnings and maintenance capex
Two refinements are worth knowing. Owner earnings, Warren Buffett's term, start from net income, add back depreciation and other non-cash charges, and subtract only the capital spending needed to maintain the business, leaving out spending on growth. The result is the cash an owner could take out without shrinking the company, which is the purest version of the idea but requires a judgment about which spending is which. The simpler split is maintenance capex against total capex: if a company's free cash flow after total capex is thin because it is building new capacity, the yield on maintenance-only free cash flow says what the existing business earns, and the growth spending is a separate bet to be evaluated on its returns. Either way, the question is the same one the ratio was built to answer: how much cash, for how much price.
Screen on cash, not just earnings
Combine a free cash flow yield floor with return-on-capital and balance-sheet rules in the screener, or describe the screen you want in plain words.
Frequently asked questions
What is a good free cash flow yield?
It depends on interest rates and growth. A yield comfortably above the ten-year government bond yield, with cash flow expected to grow, has historically marked reasonable value; many value screens use a floor of 5% to 6%. A low yield can still be fair for a fast-growing company, and a high yield can be a warning when the cash flow is at a cyclical peak or the balance sheet is weak.
What is the difference between free cash flow yield and earnings yield?
Earnings yield is earnings per share divided by price, the inverse of the P/E. Free cash flow yield uses cash generated after capital spending instead of accounting earnings. The two diverge when depreciation differs from capital spending, when revenue is recognised before cash arrives, or when working capital swings. Free cash flow is harder to manage and charges for the investment the business needs.
Should I use market cap or enterprise value in the denominator?
Enterprise value for comparing companies, because it adds net debt to the price and so puts a leveraged company and a cash-rich one on the same footing. Market capitalisation for the return to shareholders specifically, since it measures the cash against what equity holders paid. Report which one you used; the two can differ a lot for an indebted company.
How does free cash flow yield compare with dividend yield?
Dividend yield counts only the cash actually paid out; free cash flow yield counts everything the business could pay out after investing in itself. A company with a 2% dividend yield and a 7% free cash flow yield is retaining most of its cash for buybacks, debt reduction or growth. Free cash flow yield is the better measure of what the business earns; dividend yield of what it hands over.
Can free cash flow yield be negative?
Yes, when a company spends more on operations and capital investment than it collects, which is normal for early-stage or heavily investing businesses and a warning for mature ones. A negative yield means the company is funding itself from cash reserves, debt or new shares, so the question becomes how long that can continue and what the investment will return.