INVESTOR LETTER #61
CFO vs FCF: Key Differences, Examples & When to Use Each
Learn the difference between Cash Flow from Operations (CFO) and Free Cash Flow (FCF), what each metric measures, and why both are important for investors. Discover how CFO and FCF are calculated, how capital expenditure (CapEx) affects free cash flow, and when to use each metric to evaluate cash generation, business quality, and long-term investment potential.
INVESTOR NOTE
A business owner thinks in decades. A speculator thinks in minutes.
Your Monthly Salary
Imagine you receive your monthly salary in your bank account. That's great—but is all of it yours to spend? Probably not. You still have to pay rent, repair your car, replace your laptop when it gets old, and cover other necessary expenses. Only after paying these essential costs do you know how much money is truly left. That's the difference between CFO and FCF.
Cash Coming Into the Business
Cash Flow from Operations measures the cash generated from the company's everyday business activities. It reflects the money coming in from selling products or services after paying day-to-day operating expenses.
Cash Left After Necessary Investments
Free Cash Flow starts with Operating Cash Flow but then subtracts Capital Expenditure—the money spent on factories, machinery, equipment, technology, and other long-term assets. What remains is the cash the company can use more freely.
The Formulas Made Simple
Cash Flow from Operations is reported directly in the Cash Flow Statement. Free Cash Flow is usually calculated by subtracting Capital Expenditure from Cash Flow from Operations. In simple words: FCF = CFO − CapEx.
Why Both Numbers Matter
A company cannot generate Free Cash Flow unless it first generates Operating Cash Flow. CFO shows the strength of the core business, while FCF shows how much cash remains after taking care of the business's long-term needs.
A Business Can Have Strong CFO but Weak FCF
Imagine a manufacturing company generating plenty of cash from its operations. If it must constantly spend huge amounts replacing machinery and expanding factories, very little cash may remain afterward. In this case, CFO looks strong, but FCF remains low.
When High CapEx Is Actually Good
A low or even negative Free Cash Flow isn't always bad. Sometimes the company is investing heavily in new factories, stores, or technology that may generate much higher profits in the future. Investors should always understand why Capital Expenditure is high.
Which Number Does Buffett Care About?
Warren Buffett pays close attention to the cash a business can generate after meeting its necessary investment needs. While Operating Cash Flow tells him the business is producing cash, the cash remaining afterward is often even more important because that's what ultimately benefits the owners.
Different Businesses Tell Different Stories
Asset-light businesses like software companies often convert a large portion of their Operating Cash Flow into Free Cash Flow because they require relatively little Capital Expenditure. Capital-intensive industries usually keep much less of their Operating Cash Flow because maintaining factories and equipment is expensive.
Don't Focus on Just One Year
Both CFO and FCF can fluctuate from year to year because of business cycles, expansion plans, or temporary investments. Looking at five to ten years of cash flow provides a much clearer understanding of the company's true cash-generating ability.
Which One Should You Use?
If you want to know whether the company's core operations generate cash, look at Cash Flow from Operations. If you want to know how much cash is actually available after maintaining and growing the business, focus on Free Cash Flow. Most long-term investors study both because each tells an important part of the story.
Think Like an Owner
Whenever you analyze a company, don't stop after seeing positive Operating Cash Flow. Ask yourself one more question: 'After the company pays for everything needed to keep the business healthy, how much cash is actually left?' That remaining cash often tells you much more about the quality of the business.
INVESTOR PRINCIPLE