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CSTL (Castle Biosciences) Piotroski F-Score : 7 (As of Jun. 30, 2025)


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What is Castle Biosciences Piotroski F-Score?

Good Sign:

Piotroski F-Score is 7, indicates a very healthy situation.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Castle Biosciences has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.

The historical rank and industry rank for Castle Biosciences's Piotroski F-Score or its related term are showing as below:

CSTL' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 3   Max: 7
Current: 7

During the past 8 years, the highest Piotroski F-Score of Castle Biosciences was 7. The lowest was 2. And the median was 3.


Castle Biosciences Piotroski F-Score Historical Data

The historical data trend for Castle Biosciences's Piotroski F-Score can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

* Premium members only.

Castle Biosciences Piotroski F-Score Chart

Castle Biosciences Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Piotroski F-Score
Get a 7-Day Free Trial 4.00 2.00 2.00 4.00 7.00

Castle Biosciences Quarterly Data
Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 6.00 6.00 7.00 7.00 7.00

Competitive Comparison of Castle Biosciences's Piotroski F-Score

For the Diagnostics & Research subindustry, Castle Biosciences's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Castle Biosciences's Piotroski F-Score Distribution in the Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, Castle Biosciences's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Castle Biosciences's Piotroski F-Score falls into.


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How is the Piotroski F-Score calculated?

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

This Year (Mar25) TTM:Last Year (Mar24) TTM:
Net Income was 8.92 + 2.269 + 9.59 + -25.848 = $-5.1 Mil.
Cash Flow from Operations was 23.998 + 23.338 + 24.365 + -6.036 = $65.7 Mil.
Revenue was 87.002 + 85.782 + 86.311 + 87.988 = $347.1 Mil.
Gross Profit was 72.483 + 70.173 + 70.128 + 71.605 = $284.4 Mil.
Average Total Assets from the begining of this year (Mar24)
to the end of this year (Mar25) was
(458.507 + 487.312 + 514.565 + 531.235 + 501.715) / 5 = $498.6668 Mil.
Total Assets at the begining of this year (Mar24) was $458.5 Mil.
Long-Term Debt & Capital Lease Obligation was $23.3 Mil.
Total Current Assets was $349.4 Mil.
Total Current Liabilities was $37.3 Mil.
Net Income was -18.777 + -6.905 + -2.58 + -2.534 = $-30.8 Mil.

Revenue was 50.138 + 61.493 + 66.12 + 72.974 = $250.7 Mil.
Gross Profit was 39.08 + 50.174 + 53.697 + 59.08 = $202.0 Mil.
Average Total Assets from the begining of last year (Mar23)
to the end of last year (Mar24) was
(426.891 + 425.4 + 436.019 + 453.34 + 458.507) / 5 = $440.0314 Mil.
Total Assets at the begining of last year (Mar23) was $426.9 Mil.
Long-Term Debt & Capital Lease Obligation was $23.9 Mil.
Total Current Assets was $295.8 Mil.
Total Current Liabilities was $32.0 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Castle Biosciences's current Net Income (TTM) was -5.1. ==> Negative ==> Score 0.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Castle Biosciences's current Cash Flow from Operations (TTM) was 65.7. ==> Positive ==> Score 1.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Mar24)
=-5.069/458.507
=-0.01105545

ROA (Last Year)=Net Income/Total Assets (Mar23)
=-30.796/426.891
=-0.0721402

Castle Biosciences's return on assets of this year was -0.01105545. Castle Biosciences's return on assets of last year was -0.0721402. ==> This year is higher. ==> Score 1.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Castle Biosciences's current Net Income (TTM) was -5.1. Castle Biosciences's current Cash Flow from Operations (TTM) was 65.7. ==> 65.7 > -5.1 ==> CFROA > ROA ==> Score 1.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Mar25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar24 to Mar25
=23.298/498.6668
=0.04672058

Gearing (Last Year: Mar24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar23 to Mar24
=23.864/440.0314
=0.05423249

Castle Biosciences's gearing of this year was 0.04672058. Castle Biosciences's gearing of last year was 0.05423249. ==> This year is lower or equal to last year. ==> Score 1.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Mar25)=Total Current Assets/Total Current Liabilities
=349.388/37.274
=9.37350432

Current Ratio (Last Year: Mar24)=Total Current Assets/Total Current Liabilities
=295.778/31.959
=9.25492037

Castle Biosciences's current ratio of this year was 9.37350432. Castle Biosciences's current ratio of last year was 9.25492037. ==> This year's current ratio is higher. ==> Score 1.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

Castle Biosciences's number of shares in issue this year was 28.609. Castle Biosciences's number of shares in issue last year was 27.485. ==> There is larger number of shares in issue this year. ==> Score 0.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=284.389/347.083
=0.81936885

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=202.031/250.725
=0.80578722

Castle Biosciences's gross margin of this year was 0.81936885. Castle Biosciences's gross margin of last year was 0.80578722. ==> This year's gross margin is higher. ==> Score 1.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Mar24)
=347.083/458.507
=0.75698517

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Mar23)
=250.725/426.891
=0.58732791

Castle Biosciences's asset turnover of this year was 0.75698517. Castle Biosciences's asset turnover of last year was 0.58732791. ==> This year's asset turnover is higher. ==> Score 1.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=0+1+1+1+1+1+0+1+1
=7

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Castle Biosciences has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.

Castle Biosciences  (NAS:CSTL) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


Castle Biosciences Piotroski F-Score Related Terms

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Castle Biosciences Business Description

Traded in Other Exchanges
N/A
Address
505 South Friendswood Drive, Suite 401, Friendswood, TX, USA, 77546
Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. It also provides DecisionDx-UM, a risk stratification GEP test. The company also offers its products to the skin cancer and gastroenterology markets.
Executives
Derek J Maetzold director, 10 percent owner, officer: Pres. & Chief Exec. Officer 820 S. FRIENDSWOOD DRIVE, SUITE 201, FRIENDSWOOD TX 77546
Frank Stokes officer: Chief Financial Officer C/O CASTLE BIOSCIENCES, 820 S. FRIENDSWOOD DRIVE, SUITE 201, FRIENDSWOOD TX 77546
Daniel Bradbury director BIOBRIT, LLC, 2223 AVENIDA DE LA PLAYA, SUITE 108, LA JOLLA CA 92037
Tobin W Juvenal officer: Chief Commercial Officer C/O CASTLE BIOSCIENCES, 505 S. FRIENDSWOOD DRIVE, SUITE 401, FRIENDSWOOD TX 77546
Kristen M Oelschlager officer: Chief Operating Officer C/O CASTLE BIOSCIENCES, 505 S. FRIENDSWOOD DRIVE, SUITE 401, FRIENDSWOOD TX 77546
Ellen Goldberg director C/O CASTLE BIOSCIENCES, INC., 505 S. FRIENDSWOOD DRIVE, SUITE 401, FRIENDSWOOD TX 77546
Tiffany Olson director C/O CASTLE BIOSCIENCES, INC., 505 S. FRIENDSWOOD DRIVE, SUITE 401, FRIENDSWOOD TX 77546
Bernhard E. Spiess officer: Chief Operating Officer C/O CASTLE BIOSCIENCES, INC., 820 S. FRIENDSWOOD DRIVE, SUITE 201, FRIENDSWOOD TX 77546
Kim Caple director C/O BIOSCIENCES, INC., 505 S. FRIENDSWOOD DRIVE, SUITE 401, FRIENDSWOOD TX 77546
David S Kabakoff director, 10 percent owner C/O SPIROS DEVELOPMENT CORP II INC, 7475 LUSK BLVD, SAN DIEGO CA 92121
Cook Joseph C. Iii director, 10 percent owner C/O CASTLE BIOSCIENCES, INC., 820 S. FRIENDSWOOD DRIVE, STE. 201, FRIENDSWOOD TX 77546
Mara G. Aspinall director 7381 NORTH MOON SPIRIT LANE, TUCSON AZ 85718
Bonnie H Anderson director 6000 SHORELINE COURT, SUITE 300, SOUTH SAN FRANCISCO CA 94080
Mgc Venture Partners 2013 Gp, Llc 10 percent owner C/O MOUNTAIN GROUP CAPITAL, LLC, 3835 CLEGHORN AVE., SUITE 300, NASHVILLE TN 37203
Mgc Venture Partners 2013, L.p. 10 percent owner C/O MOUNTAIN GROUP CAPITAL, LLC, 3835 CLEGHORN AVE., SUITE 300, NASHVILLE TN 37203