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

Castle Biosciences (CSTL) posted Debt to Equity of $0.02 for Q1 2026, up 2.14% sequentially from $0.02 in Q4 2025, and down 4.25% YoY from $0.02 in Q1 2025.

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

Castle Biosciences (CSTL) has 7 years of Debt to Equity data on file, last reported at $0.02 in Q1 2026.

  • Quarterly Debt to Equity fell 4.25% year-over-year to $0.02 in Q1 2026, while the trailing twelve-month figure through Mar 2026 was $0.02 (down 4.25% YoY) and the FY2025 annual result came in at $0.02, down 2.87% from the prior year.
  • Debt to Equity advanced to $0.02 in Q1 2026 per CSTL's latest filing, from $0.02 in the prior quarter.
  • The five-year high for Debt to Equity was $0.05 in Q1 2022, with the low at $0.02 in Q4 2025.
  • Average Debt to Equity over 4 years is $0.03, with a median of $0.02 recorded in 2024.
  • The widest YoY moves for Debt to Equity: up 2.87% in 2025, down 8.3% in 2025.
  • Castle Biosciences' Debt to Equity stood at $0.05 in 2022, then tumbled by 58.1% to $0.02 in 2024, then fell by 2.87% to $0.02 in 2025, then climbed by 2.14% to $0.02 in 2026.
  • Business Quant data shows CSTL's Debt to Equity at $0.02 in Q1 2026, $0.02 in Q4 2025, and $0.02 in Q3 2025.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Debt/Equity (Qtr)
1 Waters 31,055.11 Bn 31,054.65 Bn 1.11 Bn 0.32
2 Thermo Fisher Scientific 191.02 Bn 187.77 Bn 7.74 Bn 0.83
3 Danaher 137.16 Bn 131.47 Bn 3.59 Bn 0.35
4 Idexx Laboratories 42.82 Bn 42.62 Bn 722.74 Mn 0.53
5 Natera 39.09 Bn 37.99 Bn 696.04 Mn 0.01
6 Agilent Technologies 37.61 Bn 35.81 Bn 990.00 Mn -1.50
7 Iqvia Holdings 34.23 Bn 32.25 Bn 1.36 Bn 2.49
8 Illumina 28.14 Bn 26.98 Bn 721.00 Mn 0.56
9 Mettler Toledo International 26.40 Bn 26.33 Bn 555.82 Mn -53.21
10 Castle Biosciences 738.56 Mn 476.84 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