Castle Biosciences (CSTL) Debt to Equity (2018 - 2026)

Castle Biosciences' (CSTL) quarterly Debt to Equity came in at $0.02 in Q1 2026, down 4.25% year-on-year from $0.02 in Q1 2025, and up 2.14% quarter-over-quarter from $0.02 in Q4 2025.

Castle Biosciences (CSTL) Debt to Equity (2018 - 2026) Analysis & Trends

Castle Biosciences has disclosed Debt to Equity across 7 years of filings, most recently posting $0.02 for Q1 2026.

  • Debt to Equity for Q1 2026 came in at $0.02, down 4.25% year-over-year; the trailing twelve-month figure through Mar 2026 was $0.02 (down 4.25% YoY), and the FY2025 annual result was $0.02, down 2.87% from the prior year.
  • Debt to Equity came in at $0.02 for Q1 2026 at Castle Biosciences, up from $0.02 in the prior quarter.
  • In the past five years, Debt to Equity ranged from a high of $0.05 in Q1 2022 to a low of $0.02 in Q4 2025.
  • The 4-year median for Debt to Equity is $0.02 (2024), against an average of $0.03.
  • Peak annual rise in Debt to Equity reached 2.87% in 2025, while the deepest fall reached 8.3% in 2025.
  • Castle Biosciences' Debt to Equity stood at $0.05 in 2022, then slumped by 58.1% to $0.02 in 2024, then slipped by 2.87% to $0.02 in 2025, then rose by 2.14% to $0.02 in 2026.
  • The last three Debt to Equity figures came in at $0.02 (Q1 2026), $0.02 (Q4 2025), and $0.02 (Q3 2025), per Business Quant data.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Debt/Equity (Qtr)
1 Waters 30,529.42 Bn 30,528.96 Bn 1.11 Bn 0.32
2 Thermo Fisher Scientific 183.75 Bn 180.50 Bn 7.74 Bn 0.83
3 Danaher 133.13 Bn 127.43 Bn 3.59 Bn 0.35
4 Idexx Laboratories 46.14 Bn 45.94 Bn 722.74 Mn 0.53
5 Agilent Technologies 38.20 Bn 36.39 Bn 990.00 Mn -1.50
6 Natera 31.50 Bn 30.40 Bn 696.04 Mn 0.01
7 Iqvia Holdings 31.34 Bn 29.36 Bn 1.36 Bn 2.49
8 Illumina 24.51 Bn 23.36 Bn 721.00 Mn 0.56
9 Mettler Toledo International 23.53 Bn 23.47 Bn 555.82 Mn -53.21
10 Castle Biosciences 629.76 Mn 368.04 Mn 63.15 Mn 0.02

Historic Data

Download Data
DateValue
Mar 31, 2026 0.02
Dec 31, 2025 0.02
Sep 30, 2025 0.02
Jun 30, 2025 0.02
Mar 31, 2025 0.02
Dec 31, 2024 0.02
Sep 30, 2024 0.02
Jun 30, 2024 0.02
Mar 31, 2024 0.02
Mar 31, 2022 0.05
Sep 30, 2020 0.13
Jun 30, 2020 0.16
Mar 31, 2020 0.29
Dec 31, 2019 0.30
Sep 30, 2019 0.30
Jun 30, 2019 -0.56
Dec 31, 2018 -0.43