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CASTLE BIOSCIENCES INC (CSTL) Stock Fundamental Analysis

NASDAQ:CSTL - Nasdaq - US14843C1053 - Common Stock - Currency: USD

19.66  -0.18 (-0.91%)

After market: 19.66 0 (0%)

Fundamental Rating

5

Taking everything into account, CSTL scores 5 out of 10 in our fundamental rating. CSTL was compared to 103 industry peers in the Health Care Providers & Services industry. While CSTL has a great health rating, there are worries on its profitability. CSTL is quite expensive at the moment. It does show a decent growth rate.


Dividend Valuation Growth Profitability Health

3

1. Profitability

1.1 Basic Checks

In the past year CSTL was profitable.
In the past year CSTL had a positive cash flow from operations.
In the past 5 years CSTL reported 4 times negative net income.
In multiple years CSTL reported negative operating cash flow during the last 5 years.
CSTL Yearly Net Income VS EBIT VS OCF VS FCFCSTL Yearly Net Income VS EBIT VS OCF VS FCFYearly Net Income VS EBIT VS OCF VS FCF 2017 2018 2019 2020 2021 2022 2023 2024 0 50M -50M

1.2 Ratios

CSTL's Return On Assets of -1.01% is in line compared to the rest of the industry. CSTL outperforms 45.63% of its industry peers.
Looking at the Return On Equity, with a value of -1.15%, CSTL is in line with its industry, outperforming 52.43% of the companies in the same industry.
Industry RankSector Rank
ROA -1.01%
ROE -1.15%
ROIC N/A
ROA(3y)-8.08%
ROA(5y)-6.67%
ROE(3y)-9.16%
ROE(5y)-7.51%
ROIC(3y)N/A
ROIC(5y)N/A
CSTL Yearly ROA, ROE, ROICCSTL Yearly ROA, ROE, ROICYearly ROA, ROE, ROIC 2017 2018 2019 2020 2021 2022 2023 2024 0 50 -50 100 -100 -150

1.3 Margins

In the last couple of years the Profit Margin of CSTL has remained more or less at the same level.
In the last couple of years the Operating Margin of CSTL has declined.
Looking at the Gross Margin, with a value of 81.94%, CSTL belongs to the top of the industry, outperforming 94.17% of the companies in the same industry.
In the last couple of years the Gross Margin of CSTL has remained more or less at the same level.
The Profit Margin and Operating Margin are not available for CSTL so they could not be analyzed.
Industry RankSector Rank
OM N/A
PM (TTM) N/A
GM 81.94%
OM growth 3YN/A
OM growth 5Y-28.6%
PM growth 3YN/A
PM growth 5Y-1.01%
GM growth 3Y-0.54%
GM growth 5Y-0.96%
CSTL Yearly Profit, Operating, Gross MarginsCSTL Yearly Profit, Operating, Gross MarginsYearly Profit, Operating, Gross Margins 2017 2018 2019 2020 2021 2022 2023 2024 0 50 -50 -100

8

2. Health

2.1 Basic Checks

CSTL does not have a ROIC to compare to the WACC, probably because it is not profitable.
CSTL has more shares outstanding than it did 1 year ago.
Compared to 5 years ago, CSTL has more shares outstanding
CSTL has a worse debt/assets ratio than last year.
CSTL Yearly Shares OutstandingCSTL Yearly Shares OutstandingYearly Shares Outstanding 2017 2018 2019 2020 2021 2022 2023 2024 5M 10M 15M 20M 25M
CSTL Yearly Total Debt VS Total AssetsCSTL Yearly Total Debt VS Total AssetsYearly Total Debt VS Total Assets 2017 2018 2019 2020 2021 2022 2023 2024 100M 200M 300M 400M 500M

2.2 Solvency

CSTL has an Altman-Z score of 6.26. This indicates that CSTL is financially healthy and has little risk of bankruptcy at the moment.
CSTL has a better Altman-Z score (6.26) than 88.35% of its industry peers.
CSTL has a debt to FCF ratio of 0.25. This is a very positive value and a sign of high solvency as it would only need 0.25 years to pay back of all of its debts.
CSTL's Debt to FCF ratio of 0.25 is amongst the best of the industry. CSTL outperforms 91.26% of its industry peers.
CSTL has a Debt/Equity ratio of 0.02. This is a healthy value indicating a solid balance between debt and equity.
CSTL has a Debt to Equity ratio of 0.02. This is amongst the best in the industry. CSTL outperforms 81.55% of its industry peers.
Industry RankSector Rank
Debt/Equity 0.02
Debt/FCF 0.25
Altman-Z 6.26
ROIC/WACCN/A
WACC9.05%
CSTL Yearly LT Debt VS Equity VS FCFCSTL Yearly LT Debt VS Equity VS FCFYearly LT Debt VS Equity VS FCF 2017 2018 2019 2020 2021 2022 2023 2024 0 100M 200M 300M 400M

2.3 Liquidity

A Current Ratio of 9.37 indicates that CSTL has no problem at all paying its short term obligations.
With an excellent Current ratio value of 9.37, CSTL belongs to the best of the industry, outperforming 98.06% of the companies in the same industry.
CSTL has a Quick Ratio of 9.19. This indicates that CSTL is financially healthy and has no problem in meeting its short term obligations.
CSTL has a Quick ratio of 9.19. This is amongst the best in the industry. CSTL outperforms 98.06% of its industry peers.
Industry RankSector Rank
Current Ratio 9.37
Quick Ratio 9.19
CSTL Yearly Current Assets VS Current LiabilitesCSTL Yearly Current Assets VS Current LiabilitesYearly Current Assets VS Current Liabilites 2017 2018 2019 2020 2021 2022 2023 2024 100M 200M 300M 400M

6

3. Growth

3.1 Past

CSTL shows a strong growth in Earnings Per Share. In the last year, the EPS has been growing by 145.22%, which is quite impressive.
CSTL shows a strong growth in Earnings Per Share. Measured over the last years, the EPS has been growing by 29.69% yearly.
The Revenue has grown by 38.43% in the past year. This is a very strong growth!
Measured over the past years, CSTL shows a very strong growth in Revenue. The Revenue has been growing by 44.95% on average per year.
EPS 1Y (TTM)145.22%
EPS 3YN/A
EPS 5Y29.69%
EPS Q2Q%-122.22%
Revenue 1Y (TTM)38.43%
Revenue growth 3Y52.25%
Revenue growth 5Y44.95%
Sales Q2Q%20.57%

3.2 Future

Based on estimates for the next years, CSTL will show a very negative growth in Earnings Per Share. The EPS will decrease by -35.97% on average per year.
The Revenue is expected to grow by 3.11% on average over the next years.
EPS Next Y-485.74%
EPS Next 2Y-118.74%
EPS Next 3Y-68.32%
EPS Next 5Y-35.97%
Revenue Next Year-10.2%
Revenue Next 2Y-4.6%
Revenue Next 3Y-0.42%
Revenue Next 5Y3.11%

3.3 Evolution

The EPS growth rate is decreasing: in the next years the growth will be less than in the last years.
When comparing the Revenue growth rate of the last years to the growth rate of the upcoming years, we see that the growth is decreasing.
CSTL Yearly Revenue VS EstimatesCSTL Yearly Revenue VS EstimatesYearly Revenue VS Estimates 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 100M 200M 300M 400M
CSTL Yearly EPS VS EstimatesCSTL Yearly EPS VS EstimatesYearly EPS VS Estimates 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 0 -1 -2

2

4. Valuation

4.1 Price/Earnings Ratio

Based on the Price/Earnings ratio of 37.81, the valuation of CSTL can be described as expensive.
CSTL's Price/Earnings is on the same level as the industry average.
When comparing the Price/Earnings ratio of CSTL to the average of the S&P500 Index (27.30), we can say CSTL is valued slightly more expensively.
The Forward Price/Earnings Ratio is negative for CSTL. No positive earnings are expected for the next year.
Industry RankSector Rank
PE 37.81
Fwd PE N/A
CSTL Price Earnings VS Forward Price EarningsCSTL Price Earnings VS Forward Price Earnings ChartPrice Earnings - Forward Price Earnings PE FPE 0 10 -10 20 30

4.2 Price Multiples

95.15% of the companies in the same industry are more expensive than CSTL, based on the Enterprise Value to EBITDA ratio.
CSTL's Price/Free Cash Flow ratio is a bit cheaper when compared to the industry. CSTL is cheaper than 79.61% of the companies in the same industry.
Industry RankSector Rank
P/FCF 13.59
EV/EBITDA 4.1
CSTL Per share dataCSTL EPS, Sales, OCF, FCF, BookValue per sharePer Share Data Per Share 0 5 10 15

4.3 Compensation for Growth

A cheap valuation may be justified as CSTL's earnings are expected to decrease with -68.32% in the coming years.
PEG (NY)N/A
PEG (5Y)1.27
EPS Next 2Y-118.74%
EPS Next 3Y-68.32%

0

5. Dividend

5.1 Amount

No dividends for CSTL!.
Industry RankSector Rank
Dividend Yield N/A

CASTLE BIOSCIENCES INC

NASDAQ:CSTL (7/11/2025, 8:02:11 PM)

After market: 19.66 0 (0%)

19.66

-0.18 (-0.91%)

Chartmill FA Rating
GICS SectorHealth Care
GICS IndustryGroupHealth Care Equipment & Services
GICS IndustryHealth Care Providers & Services
Earnings (Last)05-05 2025-05-05/amc
Earnings (Next)08-04 2025-08-04/amc
Inst Owners92.68%
Inst Owner Change0%
Ins Owners2.78%
Ins Owner Change3.32%
Market Cap567.58M
Analysts88
Price Target36.61 (86.22%)
Short Float %4.47%
Short Ratio2.57
Dividend
Industry RankSector Rank
Dividend Yield N/A
Yearly DividendN/A
Dividend Growth(5Y)N/A
DPN/A
Div Incr Years0
Div Non Decr Years0
Ex-DateN/A
Surprises & Revisions
EPS beat(2)1
Avg EPS beat(2)191.52%
Min EPS beat(2)-175.74%
Max EPS beat(2)558.79%
EPS beat(4)3
Avg EPS beat(4)204.82%
Min EPS beat(4)-175.74%
Max EPS beat(4)558.79%
EPS beat(8)7
Avg EPS beat(8)133.25%
EPS beat(12)10
Avg EPS beat(12)96.68%
EPS beat(16)12
Avg EPS beat(16)73.04%
Revenue beat(2)2
Avg Revenue beat(2)5.34%
Min Revenue beat(2)3.31%
Max Revenue beat(2)7.37%
Revenue beat(4)4
Avg Revenue beat(4)9.76%
Min Revenue beat(4)3.31%
Max Revenue beat(4)23.01%
Revenue beat(8)8
Avg Revenue beat(8)12.22%
Revenue beat(12)12
Avg Revenue beat(12)11.16%
Revenue beat(16)16
Avg Revenue beat(16)10%
PT rev (1m)0%
PT rev (3m)-9.52%
EPS NQ rev (1m)0%
EPS NQ rev (3m)-17.54%
EPS NY rev (1m)-59.72%
EPS NY rev (3m)-55.16%
Revenue NQ rev (1m)0%
Revenue NQ rev (3m)-0.21%
Revenue NY rev (1m)0%
Revenue NY rev (3m)1.91%
Valuation
Industry RankSector Rank
PE 37.81
Fwd PE N/A
P/S 1.64
P/FCF 13.59
P/OCF 8.64
P/B 1.29
P/tB 1.57
EV/EBITDA 4.1
EPS(TTM)0.52
EY2.64%
EPS(NY)-1.75
Fwd EYN/A
FCF(TTM)1.45
FCFY7.36%
OCF(TTM)2.27
OCFY11.57%
SpS12.02
BVpS15.25
TBVpS12.55
PEG (NY)N/A
PEG (5Y)1.27
Profitability
Industry RankSector Rank
ROA -1.01%
ROE -1.15%
ROCE N/A
ROIC N/A
ROICexc N/A
ROICexgc N/A
OM N/A
PM (TTM) N/A
GM 81.94%
FCFM 12.03%
ROA(3y)-8.08%
ROA(5y)-6.67%
ROE(3y)-9.16%
ROE(5y)-7.51%
ROIC(3y)N/A
ROIC(5y)N/A
ROICexc(3y)N/A
ROICexc(5y)N/A
ROICexgc(3y)N/A
ROICexgc(5y)N/A
ROCE(3y)N/A
ROCE(5y)N/A
ROICexcg growth 3YN/A
ROICexcg growth 5YN/A
ROICexc growth 3YN/A
ROICexc growth 5YN/A
OM growth 3YN/A
OM growth 5Y-28.6%
PM growth 3YN/A
PM growth 5Y-1.01%
GM growth 3Y-0.54%
GM growth 5Y-0.96%
F-Score7
Asset Turnover0.69
Health
Industry RankSector Rank
Debt/Equity 0.02
Debt/FCF 0.25
Debt/EBITDA 0.32
Cap/Depr 56.37%
Cap/Sales 6.89%
Interest Coverage N/A
Cash Conversion 229.33%
Profit Quality N/A
Current Ratio 9.37
Quick Ratio 9.19
Altman-Z 6.26
F-Score7
WACC9.05%
ROIC/WACCN/A
Cap/Depr(3y)113.65%
Cap/Depr(5y)290.73%
Cap/Sales(3y)6.28%
Cap/Sales(5y)6.02%
Profit Quality(3y)N/A
Profit Quality(5y)N/A
High Growth Momentum
Growth
EPS 1Y (TTM)145.22%
EPS 3YN/A
EPS 5Y29.69%
EPS Q2Q%-122.22%
EPS Next Y-485.74%
EPS Next 2Y-118.74%
EPS Next 3Y-68.32%
EPS Next 5Y-35.97%
Revenue 1Y (TTM)38.43%
Revenue growth 3Y52.25%
Revenue growth 5Y44.95%
Sales Q2Q%20.57%
Revenue Next Year-10.2%
Revenue Next 2Y-4.6%
Revenue Next 3Y-0.42%
Revenue Next 5Y3.11%
EBIT growth 1Y67.12%
EBIT growth 3YN/A
EBIT growth 5Y3.5%
EBIT Next Year-124.79%
EBIT Next 3Y-124.92%
EBIT Next 5Y-26.67%
FCF growth 1Y176.98%
FCF growth 3YN/A
FCF growth 5Y43.14%
OCF growth 1Y243.78%
OCF growth 3YN/A
OCF growth 5Y56%