CSTL
Castle Biosciences Inc
33.40$
-9.0%
vs. previous close
Closing price · As of: Oct 6, 2026
Statements
Ratios
Valuation ratios (P/E, P/S, EV/EBITDA and the other multiples) are based on the closing price at the end of each period, not on the current price. Margins and returns are shown in percent, multiples without a unit, per-share figures in the reporting currency, net debt in millions.
Tick rows to compare them in a chart (up to 4)
| Line item | Q1 18 | Q2 18 | Q3 18 | Q4 18 | Q1 19 | Q2 19 | Q3 19 | Q4 19 | Q1 20 | Q2 20 | Q3 20 | Q4 20 | Q1 21 | Q2 21 | Q3 21 | Q4 21 | Q1 22 | Q2 22 | Q3 22 | Q4 22 | Q1 23 | Q2 23 | Q3 23 | Q4 23 | Q1 24 | Q2 24 | Q3 24 | Q4 24 | Q1 25 | Q2 25 | Q3 25 | Q4 25 | Q1 26 | Q2 26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valuation | ||||||||||||||||||||||||||||||||||
| – | – | – | – | – | – | 36.5 | 121.3 | 77.5 | 93.2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 137.9 | 44.2 | – | – | – | – | – | – | |
| – | – | – | – | – | – | 5.7 | 12.3 | 9.2 | 10.6 | 16.3 | 22.3 | 25.1 | 23.6 | 19.5 | 11.5 | 11.6 | 5.2 | 5.6 | 4.5 | 4.0 | 2.2 | 2.4 | 2.7 | 2.4 | 2.2 | 2.7 | 2.4 | 1.6 | 1.7 | 1.9 | 3.3 | 2.2 | 2.0 | |
| – | – | – | – | – | – | 3.1 | 7.5 | 6.3 | 4.2 | 6.2 | 3.4 | 4.1 | 4.4 | 4.1 | 2.6 | 2.9 | 1.4 | 1.7 | 1.6 | 1.6 | 1.0 | 1.2 | 1.5 | 1.5 | 1.5 | 1.9 | 1.8 | 1.3 | 1.3 | 1.4 | 2.4 | 1.6 | 1.5 | |
| – | – | – | – | – | – | 4.1 | 10.9 | 8.0 | 8.1 | 13.8 | 15.8 | 19.1 | 18.8 | 15.3 | 8.1 | 8.5 | 2.7 | 4.5 | 3.6 | 3.2 | 1.6 | 1.9 | 2.2 | 2.1 | 1.9 | 2.4 | 2.1 | 1.4 | 1.5 | 1.7 | 3.0 | 2.0 | 1.9 | |
| – | – | – | – | – | – | 15.9 | 55.1 | 40.6 | 46.3 | 5,845.1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 59.0 | 30.1 | 18.3 | 12.1 | 16.3 | 24.5 | 91.3 | – | – | |
| – | – | – | – | – | – | – | 105.3 | 130.4 | 42.1 | 99.9 | 273.8 | 1,149.9 | – | – | – | – | – | – | – | – | – | – | – | – | 31.1 | 24.3 | 22.1 | 13.7 | 17.4 | 26.1 | 40.3 | 162.7 | – | |
| – | – | – | – | – | – | -0.5% | 0.9% | 0.8% | 2.4% | 1.0% | 0.4% | 0.1% | -1.0% | -1.2% | -2.1% | -3.5% | -7.5% | -6.3% | -7.6% | -9.0% | -14.1% | -9.2% | -3.3% | -1.1% | 3.2% | 4.1% | 4.5% | 7.3% | 5.7% | 3.8% | 2.5% | 0.6% | -0.1% | |
| Margins | ||||||||||||||||||||||||||||||||||
| – | – | – | 76.8% | 79.7% | 81.8% | 85.4% | 85.9% | 86.6% | 86.8% | 85.7% | 84.5% | 84.8% | 84.8% | 83.9% | 83.2% | 80.9% | 79.4% | 78.1% | 76.6% | 76.2% | 76.4% | 78.1% | 79.5% | 80.6% | 81.9% | 81.9% | 81.9% | 81.9% | 81.0% | 79.9% | 79.4% | 77.9% | 77.3% | |
| – | – | – | -16.8% | -3.9% | 6.4% | 20.8% | 14.1% | 14.3% | 11.9% | -1.4% | -10.4% | -17.4% | -25.6% | -32.4% | -42.6% | -61.5% | -68.8% | -69.2% | -68.0% | -65.9% | -57.9% | -44.3% | -30.9% | -16.7% | -5.5% | -0.3% | 2.6% | -4.0% | -6.7% | -10.2% | -12.4% | -9.8% | -9.0% | |
| – | – | – | -27.9% | -14.7% | -6.4% | 15.5% | 10.2% | 11.9% | 11.3% | -5.3% | -16.4% | -22.2% | -28.9% | -34.5% | -33.3% | -52.6% | -40.4% | -42.8% | -49.0% | -47.1% | -53.0% | -39.3% | -26.1% | -12.3% | -1.1% | 1.9% | 5.5% | -1.5% | -2.7% | -3.6% | -7.0% | -3.8% | -5.4% | |
| – | – | – | -55.2% | -32.3% | -11.1% | -2.8% | 11.7% | 7.1% | 25.1% | 16.3% | 8.2% | 2.2% | -22.6% | -22.9% | -23.9% | -40.7% | -39.0% | -34.9% | -34.5% | -35.6% | -30.8% | -21.8% | -8.8% | -2.6% | 7.0% | 11.1% | 11.0% | 12.0% | 10.0% | 7.4% | 8.2% | 1.3% | -0.1% | |
| Returns | ||||||||||||||||||||||||||||||||||
| – | – | – | – | -204.6% | – | 8.6% | 6.2% | 8.2% | 4.5% | -2.0% | -2.5% | -3.6% | -5.4% | -7.2% | -7.6% | -13.0% | -10.6% | -12.9% | -16.8% | -18.6% | -23.5% | -19.6% | -14.7% | -7.7% | -0.7% | 1.4% | 4.0% | -1.2% | -2.1% | -2.6% | -5.1% | -2.8% | -4.1% | |
| – | – | – | -28.4% | -13.2% | -6.6% | 6.3% | 4.4% | 6.0% | 3.5% | -1.6% | -2.3% | -3.5% | -5.2% | -6.9% | -6.8% | -11.6% | -9.7% | -11.6% | -15.0% | -16.8% | -20.9% | -17.3% | -12.7% | -6.7% | -0.6% | 1.2% | 3.4% | -1.0% | -1.7% | -2.2% | -4.2% | -2.3% | -3.5% | |
| Balance Sheet & Debt | ||||||||||||||||||||||||||||||||||
| 1.2 | – | – | – | 11 | 12 | -70 | -74 | -73 | -155 | -161 | -410 | -407 | -368 | -363 | -328 | -308 | -272 | -133 | -121 | -113 | -94 | -90 | -98 | -72 | -74 | -83 | -108 | -78 | -71 | -74 | -105 | -52 | -51 | |
| – | – | – | – | – | 5.6 | -5.9 | -7.2 | -6.1 | -14.2 | -1,083.8 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -7.9 | -3.3 | -2.8 | -1.9 | -2.2 | -3.1 | -9.3 | – | – | |
| – | – | – | -44.9% | 6.5% | -10.8% | 72.7% | 71.1% | 73.1% | 78.2% | 79.2% | 94.6% | 95.7% | 95.5% | 94.9% | 89.0% | 89.4% | 92.0% | 89.9% | 89.2% | 90.2% | 89.0% | 88.5% | 86.3% | 87.8% | 87.0% | 85.7% | 85.8% | 87.8% | 83.6% | 83.0% | 81.4% | 84.2% | 83.8% | |
| – | – | – | – | 13.6 | – | 0.3 | 0.3 | 0.3 | 0.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Per Share | ||||||||||||||||||||||||||||||||||
| – | – | – | -0.60 | -0.38 | -0.14 | 0.50 | 0.28 | 0.38 | 0.40 | -0.17 | -0.49 | -0.61 | -0.90 | -1.18 | -1.24 | -2.03 | -1.71 | -2.01 | -2.54 | -2.70 | -3.32 | -2.81 | -2.12 | -1.12 | -0.11 | 0.21 | 0.60 | -0.18 | -0.32 | -0.42 | -0.82 | -0.43 | -0.64 | |
| – | – | – | 2.14 | 2.61 | 2.24 | 3.19 | 2.79 | 3.23 | 3.56 | 3.16 | 3.01 | 2.73 | 3.11 | 3.41 | 3.71 | 3.86 | 4.23 | 4.70 | 5.19 | 5.72 | 6.27 | 7.16 | 8.10 | 9.12 | 10.01 | 10.61 | 11.00 | 12.13 | 11.72 | 11.82 | 11.74 | 11.37 | 11.75 | |
| -1.34 | – | – | -0.95 | 0.19 | -0.23 | 5.76 | 4.58 | 4.69 | 8.98 | 8.35 | 19.95 | 16.80 | 16.58 | 16.28 | 16.26 | 15.63 | 16.18 | 15.63 | 15.12 | 14.48 | 14.17 | 14.38 | 14.41 | 14.64 | 14.75 | 15.00 | 15.09 | 15.39 | 15.41 | 16.06 | 16.05 | 15.44 | 15.46 | |
| – | – | – | -1.18 | -0.84 | -0.25 | -0.09 | 0.33 | 0.23 | 0.90 | 0.52 | 0.25 | 0.06 | -0.70 | -0.78 | -0.89 | -1.57 | -1.65 | -1.64 | -1.79 | -2.04 | -1.93 | -1.56 | -0.71 | -0.23 | 0.70 | 1.17 | 1.21 | 1.46 | 1.17 | 0.87 | 0.97 | 0.15 | -0.02 | |
Data as of: October 6, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.