Castle Biosciences, Inc.

CSTL Healthcare Diagnostics & Research

Castle Biosciences, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $344.2 million, up 3.66% from fiscal 2024. In the quarter to June 2026, revenue grew 20.1%, EPS fell 143.8%, free cash flow fell 43.3% and total debt was flat, each against the same quarter a year earlier. Revenue growth for five consecutive years.

31.96 1.84 −5.44%
Market cap
$1.0B
P/E
0.0×
Fwd P/E
−15.2×
Dividend yield
—
F-score
3/9
Altman Z
6.70
Beneish M
−3.49
Dividend safety
n/a
Jun '26 Mar '26 Dec '25 Sep '25 Older periods
Piotroski F-Score
3 3 3 3

+8 more TTM periods

ROE
(4.20%) (2.85%) (5.21%) (2.69%)
ROA
(3.51%) (2.45%) (4.35%) (2.27%)
ROIC
(9.40%) (9.90%) (14.72%) (11.50%)
Return on Tangible Assets
(4.99%) (3.37%) (6.20%) (3.16%)
Average Days of Receivables
49.39 45.38 46.00 52.57
Free Cash Flow per Share
(0.01) 0.15 0.98 0.87
Free Cash Flow
(0.45) 4.56 28.37 25.42
Capital Expenditures
(43.09) (43.69) (35.98) (36.36)
Other line items
Cash ROIC
(0.06%) 0.62% 3.63% 3.32%
Accounts Receivable Turnover
7.10 6.89 7.28 6.89
Accounts Payable Turnover
7.11 6.39 5.55 7.24
Inventory Turnover
8.58 8.69 7.73 9.05
Average Days of Payables
43.43 73.01 96.15 64.69
Days of Inventory on Hand
47.53 50.79 52.69 45.83
Tax Rate
0.01 (0.27) (0.18) (0.35)
Research and Development Expense of Revenue
15.52% 15.79% 15.06% 14.59%
Selling, General and Administrative Expense of Revenue
68.20% 69.31% 66.62% 64.79%
Share Based Compensation of Revenue
12.56% 13.09% 13.33% 13.37%
Interest Coverage
(85.62) (163.99) (497.79) (226.84)
Operating CF/Net income
(2.20) (3.76) (2.66) (5.05)
Depreciation/Fixed assets
0.13 0.12 0.38 0.44
Capex/Depreciation
(3.28) (3.74) (0.98) (0.97)
Revenue per Share
11.75 11.37 11.88 11.82
Operating CF per Share
1.40 1.61 2.22 2.13
Capex per Share
(1.42) (1.46) (1.24) (1.25)
Capex to Sales
0.12 0.13 0.10 0.11

Fold the line items

Columns are period end dates