Glossary term
FCF-to-Capex Cover
Operating cash flow (or free cash flow before capex) divided by capital expenditure over the trailing four quarters — whether a company pays for its investment programme from the business or from outside money. Above 1× is self-funded; below 1× the gap is borrowed or raised.
AI-generated — produced automatically by Closelook’s systems under this site’s editorial policy.
What it means
A company can fund capital expenditure three ways: from the cash its operations generate, from debt, or from equity. The cover ratio measures the first. Operating cash flow divided by capex above 1.0 means the business paid for its own build-out with room to spare; below 1.0 the difference had to come from lenders or shareholders. The companion measure — new debt raised divided by capex, the external funding ratio — shows how much of the gap was borrowed.
The ratio is more honest than free cash flow alone, which turns negative for any company investing heavily and says nothing about whether that investment is affordable.
Why it matters for the AI trade
The build-out is the largest corporate investment programme in history, and this ratio sorts who is paying for it. On the AI credit stress tape (trailing four quarters, filings as of September 2026) the balance-sheet funders cover capex 1.34×, Oracle 0.62× and the project-funded builders 0.18× — with the builders raising new debt at 1.10× their capex, meaning they borrow more than they build. Amazon, on the top rung, covered only 0.93× and is flagged as drifting toward debt-funded behaviour.
How Closelook uses it
The tape scores each rung of the funding ladder from three filing-based ratios — this cover, the external funding ratio and interest coverage — and reads stress as an ordinal: which rung it has reached. The capex cycle entry gives the demand side of the same story.
Common questions
- Is negative free cash flow a warning sign for an AI builder?
- Not by itself. Every company in a build-out phase runs negative free cash flow. The warning is a cover ratio far below 1 combined with an external funding ratio above 1 and interest that is not covered — the business is being financed, not funded.
- How is the cover ratio different from free cash flow yield?
- Free cash flow yield compares cash flow to the share price; the cover ratio compares cash flow to the investment programme. One tells you what you pay for cash generation, the other whether the company can afford its own plans.
- Why trailing four quarters?
- Capex and cash flow are lumpy within a year. Four quarters smooth the timing of large purchases and of collections without averaging away a trend.