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Castle Biosciences (CSTL) FCF Margin: 2018-2025

Historic FCF Margin for Castle Biosciences (CSTL) over the last 7 years, with Sep 2025 value amounting to 9.39%.

  • Castle Biosciences' FCF Margin fell 1038.00% to 9.39% in Q3 2025 from the same period last year, while for Sep 2025 it was 7.39%, marking a year-over-year decrease of 369.00%. This contributed to the annual value of 11.00% for FY2024, which is 1976.00% up from last year.
  • As of Q3 2025, Castle Biosciences' FCF Margin stood at 9.39%, which was down 29.99% from 13.41% recorded in Q2 2025.
  • Over the past 5 years, Castle Biosciences' FCF Margin peaked at 107.51% during Q4 2021, and registered a low of -170.81% during Q2 2021.
  • Its 3-year average for FCF Margin is -0.73%, with a median of 9.39% in 2025.
  • In the last 5 years, Castle Biosciences' FCF Margin plummeted by 26,318bps in 2021 and then surged by 14,094bps in 2022.
  • Castle Biosciences' FCF Margin (Quarterly) stood at 107.51% in 2021, then slumped by 12,782bps to -20.31% in 2022, then surged by 4,269bps to 22.37% in 2023, then plummeted by 291bps to 19.46% in 2024, then plummeted by 1,038bps to 9.39% in 2025.
  • Its last three reported values are 9.39% in Q3 2025, 13.41% for Q2 2025, and -12.25% during Q1 2025.