Free Cash Flow
The cash a company generates after all expenses — the truest measure of financial health.
Free cash flow (FCF) is the cash a company generates from operations after subtracting capital expenditures. It represents the money available to pay dividends, buy back shares, reduce debt, or invest in growth. Unlike earnings (which can be manipulated through accounting), free cash flow is harder to fake because it measures actual cash movement. It is considered the truest measure of a company's financial health.
Why It Matters
For options traders, free cash flow is the ultimate indicator of whether a company can sustain its current stock price and business operations. Earnings can be positive while FCF is negative (through aggressive revenue recognition or deferred expenses), making the company more fragile than it appears. Conversely, strong FCF provides a cushion against bad quarters and supports shareholder-friendly activities like buybacks and dividends.
Companies with strong FCF tend to have more stable stock prices and lower implied volatility — they can weather downturns without diluting shareholders or taking on debt. Companies with negative or deteriorating FCF are at higher risk of earnings disappointments, dividend cuts, or credit downgrades — all events that can cause sharp stock declines and options repricing.
How It Works
The formula:
Free Cash Flow = Operating Cash Flow - Capital Expenditures
Breaking it down:
- Operating Cash Flow: Cash generated from the company's core business operations. Found on the cash flow statement.
- Capital Expenditures (CapEx): Cash spent on maintaining or expanding physical assets (factories, equipment, technology). Also on the cash flow statement.
FCF yield — comparing FCF to stock price:
FCF Yield = Free Cash Flow Per Share / Stock Price
A 5% FCF yield means the company generates $5 in free cash for every $100 of stock price. Higher is better. An FCF yield above 8% often signals undervaluation; below 2% often signals overvaluation or a growth company reinvesting heavily.
What to look for:
- FCF growing over time: Indicates improving business health and efficiency
- FCF consistently above earnings: The company's earnings are high quality (backed by cash)
- FCF consistently below earnings: Red flag — earnings may be inflated by accounting
- Negative FCF for growth companies: Acceptable if the company is investing in high-return projects, but unsustainable long-term
- FCF covering dividends: If FCF is less than dividend payments, the dividend may be at risk of a cut
FCF and options trading:
- Sell puts on companies with strong, growing FCF — they have a natural floor from cash generation
- Be cautious selling puts on companies with deteriorating FCF — the risk of a negative catalyst is elevated
- Use FCF yield to identify potential value opportunities for bullish options plays
- Watch for divergence between earnings growth and FCF growth — when earnings rise but FCF falls, trouble may follow
Quick Example
Company GHI reports EPS of $4.00 on revenue of $10 billion. The stock trades at $80 (P/E of 20). Looks fine on the surface.
But the cash flow statement tells a different story: operating cash flow is $3.5 billion and CapEx is $3.0 billion. FCF is only $500 million — or $1.00 per share. The FCF yield is just 1.25%, and FCF per share is 75% below EPS. The company's earnings are inflated relative to the cash it actually generates.
You decide not to sell puts on GHI despite the reasonable-looking P/E. Instead, you buy a put spread: long the $75 put, short the $70 put for $1.80. When the company misses on a cash flow metric the following quarter and cuts capital spending guidance, the stock drops to $68. Your spread is worth $5.00 — a $3.20 profit.