CSTL (Castle Biosciences) Preferred Stock: $0.0 Mil (As of Mar. 2026)


CSTL Castle Biosciences Inc CSTL
77 GF Score
Price $23.83
GF Value $29.19
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Castle Biosciences Preferred Stock?

Castle Biosciences CSTL -1.57% 77 Preferred Stock is $0.0 Mil as of Mar. 2026. GuruFocus rates CSTL with a GF Score™ of 77/100 and a GF Value™ of $29.19 (Modestly Undervalued). The stock has 4 warning signs investors should review.

Preferred stock is a special equity security that has properties of both equity and debt. Castle Biosciences's preferred stock for the quarter that ended in Mar. 2026 was $0.0 Mil.

The market value of preferred stock needs to be added to the market value of common stocks in the calculation of Enterprise Value. Castle Biosciences's Enterprise Value for the quarter that ended in Mar. 2026 was $517.6 Mil.

In the calculation of book value, the par value of preferred stocks needs to subtracted from total equity. Castle Biosciences's Book Value per Share for the quarter that ended in Mar. 2026 was $15.23.

Dividends paid to preferred stocks need to be subtracted from net income in the calculation of Earnings per Share (Diluted). Castle Biosciences's Earnings per Share (Diluted) for the three months ended in Mar. 2026 was $-0.49.


Castle Biosciences  (NAS:CSTL) Preferred Stock Explanation

When a company needs capital but does not wish to issue debt, they may sell preferred stocks to investors.

For instance, during the financial crisis of 2008, Goldman Sachs (GS) issued a combination of preferred stock and common stock options for $5 billion of capital to Warren Buffett’s Berkshire Hathaway (BRK.A)(BRK.B). In this deal, Berkshire Hathaway paid $5 billion for 10% cumulative perpetual preferred stock and warrants to buy 43.5 million shares of Goldman Sachs at $115 a share. Goldman Sachs bought back the preferred in 2010. Guess how much money Warren Buffett made in this deal in two years? Read How Much Did Warren Buffett’s Berkshire Hathaway (BRK.B) Make on Its Goldman Sachs (GS) Preferred Stock?

1. The market value of Preferred Stocks needs to be added to the market value of common stocks in the calculation of enterprise value.

Castle Biosciences's Enterprise Value for the quarter that ended in Mar. 2026 is calculated as

2. In the calculation of Book Value, the par value of Preferred Stocks needs to subtracted from total equity.

Castle Biosciences's Book Value per Share for the quarter that ended in Mar. 2026 is calculated as

3. Dividends paid to Preferred Stocks need to be subtracted from net income in the calculation of earnings per share.

Castle Biosciences's Earnings per Share (Diluted) (EPS) for the three months ended in Mar. 2026 is calculated as

* 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.


Castle Biosciences Preferred Stock Related Terms


Castle Biosciences Preferred Stock Historical Data

* Premium members only.

The historical data trend for Castle Biosciences's Preferred Stock 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.

Castle Biosciences Preferred Stock Chart

Castle Biosciences Annual Data
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Castle Biosciences Quarterly Data
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CSTL
77GF Score
Castle Biosciences Inc CSTL
Preferred Stock is just one metric. See GF Score™, valuation, warning signs, and more.
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Castle Biosciences Preferred Stock Calculation

Preferred Stock is a special equity security that has properties of both equity and debt. It is generally considered a hybrid instrument. Preferred stock is senior to common stock, but is subordinate to bonds in terms of claim or rights to their share of the assets of the company.

Preferred stock has priority over common stock in the payment of dividends and any payments received when a company liquidates.

Preferred stock comes in many forms. It can be:


Convertible or Non-Convertible
Cumulative or Non-Cumulative
Voting or Non-Voting
Callable or Non-Callable
Maturity Date or No Maturity Date

A preferred stock without a maturity date is called a perpetual preferred stock. These are relatively rare. A good example of perpetual preferred stock is the many series of Public Storage (PSA) preferred shares that trade on the New York Stock Exchange.

Before investing in preferred stock, it is important to know which of the above groups the stock belongs to. Is it convertible or non-convertible? Are dividends cumulative or non-cumulative?

It is also critical that an investor knows what bonds the company has in front of the preferred stock. Bondholders get paid first. So the decision to buy a preferred stock can be similar to the decision to buy a bond. But, remember, the preferred stock of a company with bonds is junior to those bonds.

Unless a preferred stock is convertible, the upside in a preferred stock investment is more limited than in a common stock investment. If a company doubles its earnings, it is usually under no more obligation to double the dividends paid to preferred shareholders than it is to double the interest paid to its bankers and bondholders.So preferred stock is very different from common stock.

Frequently Asked Questions Learn more about Preferred Stock →
What does a Preferred Stock of $0.0 Mil mean?
Castle Biosciences (CSTL) has a Preferred Stock of $0.0 Mil as of Mar. 2026. Preferred Stock represents the par value of a company's preferred shares. View historical data on Castle Biosciences and its competitors.
Is Castle Biosciences' Preferred Stock too high?
Castle Biosciences' current Preferred Stock is $0.0 Mil. Overall, Castle Biosciences has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Castle Biosciences' Preferred Stock compare to FLGT and MYGN?
Castle Biosciences' Preferred Stock of $0.0 Mil can be compared against companies in the Medical Diagnostics & Research industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Preferred Stock for a Medical Diagnostics & Research company?
A good Preferred Stock depends on the Medical Diagnostics & Research industry context. However, Preferred Stock should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Preferred Stock mean?
A high Preferred Stock can signal that a stock is expensive relative to its fundamentals. Preferred Stock represents the par value of a company's preferred shares. View historical data on Castle Biosciences and its competitors. Castle Biosciences's current Preferred Stock is $0.0 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Castle Biosciences stock overvalued right now?
Based on GuruFocus' analysis, Castle Biosciences (CSTL) is currently considered Modestly Undervalued. The stock's GF Value™ is $29.19, compared to a current price of $23.83 — trading 18.4% below its estimated fair value. The current Preferred Stock is $0.0 Mil. Castle Biosciences' overall GF Score™ is 77/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Preferred Stock calculated?
Preferred Stock is calculated from a company's financial statements. For Castle Biosciences (CSTL), the current Preferred Stock is $0.0 Mil as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Castle Biosciences (CSTL) Overvalued in 2026?

Based on GuruFocus' analysis, Castle Biosciences stock appears to be undervalued. The current stock price of $23.83 is trading 18.4% below its estimated GF Value™ of $29.19. GuruFocus considers Castle Biosciences to be Modestly Undervalued.

Key valuation signals for CSTL:

  • Preferred Stock: $0.0 Mil
  • GF Value™: $29.19 vs. price of $23.83 (18.4% below fair value)
  • GF Score™: 77/100 with 4 warning signs

No single metric tells the full story. See the CSTL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Castle Biosciences Business Description

Other Exchanges 086:Germany
Address 1500 West Parkwood Avenue, 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. The company derives revenues through the delivery of test reports for its molecular diagnostic tests.
77GF Score

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Preferred Stock is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$23.83
Price
$29.19
GF Value