Castle Biosciences Inc (CSTL) — Free Cash Flow Generation Index
Castle Biosciences Inc (CSTL) has a Free Cash Flow Generation Index of 0.43x as of June 2026. Free cash flow of $6.55 Million represents 0% of operating cash flow ($15.20 Million). Explore CSTL capex reinvestment rate to see what proportion of operating cash flow is directed to capital expenditures.
FCF Generation Index
Free Cash Flow
Operating Cash Flow
Capital Expenditures
Castle Biosciences Inc Free Cash Flow Generation Index (2019–2025)
Historical FCF Generation Index trend for Castle Biosciences Inc across 4 annual periods. For the full cash flow conversion analysis, see Castle Biosciences Inc (CSTL) cash conversion ratio.
Annual Free Cash Flow Generation for Castle Biosciences Inc (2019–2025)
Year-by-year Free Cash Flow Generation Index for Castle Biosciences Inc. Check Castle Biosciences Inc total reinvestment intensity to assess the company's total reinvestment commitment from operating cash flow.
| Year | FCG Index | Free Cash Flow (USD) | Operating CF | Capital Expenditures | YoY Change |
|---|---|---|---|---|---|
| 2025 | 0.44x | $28.33 Million | $64.35 Million | $36.02 Million | ▼ -21.9% |
| 2024 | 0.56x | $36.54 Million | $64.87 Million | $28.33 Million | ▲ +8.7% |
| 2020 | 0.52x | $5.11 Million | $9.87 Million | $4.75 Million | ▼ -40.2% |
| 2019 | 0.87x | $6.08 Million | $7.01 Million | $937.00K | — |