Castle Biosciences Inc share price logo

Castle Biosciences Inc

NASDAQ: CSTL

Small Cap

$18.19

-0.44

(-2.36%)

Live

as on

Castle Biosciences Inc Stock Performance

as on May 14, 2026 at 4:13 am IST

  • Day's Low

    Day's High

    $17.81
    $18.57
    downward going graph

    2.09%

    Downside

    2.09%

    Upside

    downward going graph

  • 52 Week's Low

    52 Week's High

    $14.59
    $44.28
    downward going graph

    19.79%

    Downside

    143.43%

    Upside

    downward going graph

Castle Biosciences Inc share price movements today

Previous Close
$18.63
Open
$18.35
Volume
417.0K
Day's Low - High
$17.81 - $18.57
52 Week Low - High
$14.59 - $44.28

Castle Biosciences Inc Historical Returns

1 Month Return
-20.82 %
3 Month Return
-43.8 %
1 Year Return
+ 9.4 %
3 Year Return
-18.54 %
5 Year Return
-62.79 %

Castle Biosciences Inc Stock Fundamentals & Key Indicators

Check Castle Biosciences Inc market cap, PE, PB, PEG ratios, dividend yield, and other key fundamental indicators.

Market Cap

$577.5M

EPS (TTM)

-1.2738

Dividend Yield

0.00%

Quarterly Earnings Growth YOY

-0.52%

PE Ratio (TTM)

0

PEG Ratio

0

EBITDA

-18.4M

Revenue (TTM)

339.9M

Profit Margin

-3.78%

Return On Equity TTM

-2.85%

Castle Biosciences Inc vs Peer Comparison

Compare market cap, revenue, PE, and other key metrics of Castle Biosciences Inc with its industry peers.

Company
Analyst View
Market Cap
5 Years Return %PE RatioProfit Margin %
Castle Biosciences Inc image
Castle Biosciences Inc
BUY$577.5M-62.79%NA-3.78%
Waters Corporation image
Waters Corporation
HOLD$34.2B11.64%44.3411.93%
IDEXX Laboratories Inc image
IDEXX Laboratories Inc
BUY$42.0B3.06%39.224.63%
Thermo Fisher Scientific Inc image
Thermo Fisher Scientific Inc
BUY$168.2B0.52%24.8815.15%
Danaher Corporation image
Danaher Corporation
BUY$117.9B-34.2%32.3314.89%

Stock Returns calculator for Castle Biosciences Inc Stock including INR - Dollar returns

The Castle Biosciences Inc stock calculator helps Indian investors calculate returns based on the historical performance of the stock. Just choose your investment amount and duration to get insights and invest more confidently. See stock returns as well as the effect of dollar appreciation over different durations.

*Dollar Impact: The bonus return you make when the US Dollar rises against the Rupee; calculated on the full amount you walk away with, not just what you invested in.

Investment Value

₹1,00,000

  • 1Y

  • 3Y

  • 5Y

Castle Biosciences Inc investment value today

Current value as on today

₹1,19,876

Returns

₹19,876

(+19.88%)

Returns from Castle Biosciences Inc Stock

₹6,812 (+6.81%)

Dollar Impact

₹13,065 (+13.06%)

Analyst Recommendation on Castle Biosciences Inc Stock

Based on 15 analysts

BUY

93.33%

Buy

6.67%

Hold

0.00%

Sell

Based on 15 analysts, 93.33% of analysts recommend a 'BUY' rating for Castle Biosciences Inc. Average target price of $47.12

Castle Biosciences Inc Share Price Target

Get share price movements and forecasts by analysts on Castle Biosciences Inc.

What analysts predicted

61.4%UPSIDE

Target Price

$47.12

Current Price

$18.19

Analyzed by

15 Analysts

Target

$47.12

Castle Biosciences Inc target price $47.12, a slight upside of 61.4% compared to current price of $18.19. According to 15 analysts rating.

Indian Investors' Interest in Castle Biosciences Inc Stock

Search interest for Castle Biosciences Inc Stock has increased by 200% in the last 30 days, reflecting an upward trend in search activity.

Time period: to

Change:200% versus previous 30 day period

Castle Biosciences Inc Quarterly Profit & Loss

All numbers in Millions USD

Dec 2023
Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Mar 2026
Total Revenue
66
72
87
85
86
87
86
83
87
83
Gross Profit
53
59
72
70
70
71
68
64
68
60
Operating Income
-5
-5
5
5
4
-27
-4
-6
-3
-18
EBITDA
0
0
11
12
13
3
3
5
1
-14
Interest Expense
0
0
0
0
0
0
0
0
0
0
Depreciation
3
3
3
3
5
29
3
3
3
-
Income Before Tax
-2
-2
7
8
7
-26
0
0
-2
-14
Income Tax Expense
0
0
-1
6
-1
0
-4
0
0
0
Net Income
-2
-2
8
2
9
-25
4
0
-2
-14
Net Profit Margin
-3.90%
-3.47%
10.25%
2.65%
11.11%
-29.38%
5.25%
-0.60%
-2.68%
-17.35%

Castle Biosciences Inc Annual Profit & Loss

All numbers in Millions USD

Dec 2017
Dec 2018
Dec 2019
Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Total Revenue
13
22
51
62
94
137
219
332
344
Gross Profit
8
17
44
52
78
105
174
271
273
Operating Income
-10
-3
7
-6
-40
-72
-67
8
-42
EBITDA
-10
-3
10
-7
-36
-58
-45
38
11
Interest Expense
1
2
4
2
0
0
0
0
0
Depreciation
0
0
0
0
3
10
11
15
40
Income Before Tax
-12
-6
5
-10
-40
-68
-57
21
-29
Income Tax Expense
0
0
0
0
-8
-1
0
3
-5
Net Income
-12
-6
5
-10
-31
-67
-57
18
-24
Net Profit Margin
-89.93%
-27.94%
10.17%
-16.42%
-33.26%
-48.99%
-26.15%
5.49%
-7.02%

Castle Biosciences Inc Quarterly Cash Flow

All numbers in Millions USD

Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Mar 2026
Net Income
-2
8
2
9
-25
4
0
-2
-14
Operating Cash Flow
-6
23
23
24
-6
20
22
26
-22
Investing Cash Flow
-19
-21
-14
5
-22
-28
-18
8
-25
Financing Cash Flow
10
0
0
-5
-1
0
0
-4
-5
Change in Cash
-15
2
9
24
-30
-7
3
31
-52

Castle Biosciences Inc Annual Cash Flow

All numbers in Millions USD

Dec 2018
Dec 2019
Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Net Income
-6
5
-10
-31
-67
-57
18
-24
Operating Cash Flow
-12
7
9
-18
-41
-5
64
64
Investing Cash Flow
0
0
-4
-66
-166
-16
-50
-60
Financing Cash Flow
15
88
305
5
1
-2
6
-6
Change in Cash
3
94
311
-80
-206
-24
20
-2

Global Institutional Holdings in Castle Biosciences Inc

Funds
Holdings
State Street Corp
2.43%
Renaissance Technologies Corp
1.63%
Millennium Management LLC
1.02%
Ameriprise Financial Inc
1.28%
BlackRock Inc
10.24%
See all

Castle Biosciences Inc News & Key Events

  • img

    Today's Timeline - 27 February

    Fri, 09:44 PM

    -

    Castle Biosciences maintains Zacks Rank #1; loss estimates narrowed, shares up 54.6% over six months.

Insights on Castle Biosciences Inc

Insights help you understand the recent movement of the company's critical parameters, giving you an overall view of the company.

  • imgPOSITIVE IMPACT

    Best in 1 Year

    img

    In the last 1 year, CSTL has outperformed top 5 stocks with highest market-cap in its industry

  • imgNO EFFECT

    Against Peers

    img

    In the last 3 years, Castle Biosciences Inc has experienced a drawdown of -18.5%, however Waters Corporation resisted the overall trend and outperformed by 6.0%

  • imgNEGATIVE IMPACT

    Profit Down

    img

    Netprofit is down for the last 4 quarters, 4.52M → -14.52M (in $), with an average decrease of 333.1% per quarter

  • imgNEGATIVE IMPACT

    Price Dip

    img

    In the last 7 days, CSTL stock has moved down by -24.7%

  • imgNEGATIVE IMPACT

    Revenue Fall

    img

    Revenue is down for the last 2 quarters, 87.01M → 83.67M (in $), with an average decrease of 3.8% per quarter

About Castle Biosciences Inc

Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), atopic dermatitis (AD), and uveal melanoma. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the likelihood of a positive sentinel lymph node and the risk of metastasis for patients with invasive cutaneous melanoma; TissueCypher, a risk stratification spatialomics test to predict future development of high-grade dysplasia and/or esophageal cancer in patients with non-dysplastic, indefinite dysplasia, and low-grade dysplasia BE; AdvanceAD-Tx, a non-invasive GEP test which is designed to guide systemic treatment selection for patients aged 12 years and older with moderateto-severe AD; DecisionDx-SCC, a GEP test for cutaneous squamous cell carcinoma; and MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions. It also provides DecisionDx-UM, a risk stratification GEP test that predicts the risk of metastasis for patients with uveal melanoma. The company offers its products to dermatology and gastroenterology markets. The company was incorporated in 2007 and is headquartered in Friendswood, Texas.
OrganisationCastle Biosciences Inc
Headquarters1500 W. Parkwood Ave, Friendswood, TX, United States, 77546
IndustryDiagnostics & Research
CEOMr. Derek J. Maetzold
E-voting on sharesClick here to vote

Key Management of Castle Biosciences Inc

Name

Title

Mr. Kevin Doman

Vice President of Sales

Ms. Keli Greenberg

Vice President of Human Resources

Dr. Matthew Goldberg M.D.

Senior Vice President of Medical

Dr. Jay Braxton Pharm.D.

VP of Marketing & Brand Manager of Uveal Melanoma (UM)

Ms. Trisha Poteet

Senior VP of Clinical Services & Manufacturing Operations

Mr. Derek J. Maetzold

Founder, CEO, President & Director

Mr. Frank Stokes

CFO & Treasurer

Ms. Kristen M. Oelschlager R.N.

Chief Operating Officer

Mr. Tobin W. Juvenal

Chief Commercial Officer

Ms. Camilla Zuckero

Vice President of Investor Relations & Corporate Affairs

FAQs

What is Castle Biosciences Inc share price today?

Castle Biosciences Inc share price today is $18.19 as on . Castle Biosciences Inc share today touched a day high of $18.57 and a low of $17.81.

What is the 52 week high and 52 week low for Castle Biosciences Inc share?

Castle Biosciences Inc share touched a 52 week high of $44.28 on and a 52 week low of $14.59 on . Castle Biosciences Inc stock price today i.e. is trending at $18.19,which is 58.92% down from its 52 week high and 24.67% up from its 52 week low.

What is Castle Biosciences Inc's market capitalisation today?

Castle Biosciences Inc market capitalisation is $0.00T as on .

How to invest in Castle Biosciences Inc Stock (CSTL) from India?

  1. Step 1: Open a free US stocks account on INDmoney App and transfer your Rupees into Dollars to your INDmoney US stocks account. For a step by step instruction, check How to Transfer Money to Your US Stocks Account .
  2. Step 2: Search for Castle Biosciences Inc on INDmoney app. Click on Buy button. You can invest as low as $1.5 in Castle Biosciences Inc Shares that will get you 0.0825 shares as per Castle Biosciences Inc share price of $18.19 per share as on May 13, 2026 at 10:43 pm IST.

What is the minimum amount required to buy Castle Biosciences Inc Stock (CSTL) from India?

Indian investors can start investing in Castle Biosciences Inc (CSTL) shares with as little as ₹95.705 or $1 (as of ) using the INDmoney app.
For example: If you want to invest $10 or ₹957.05 in Castle Biosciences Inc stock (as per the Rupee-Dollar exchange rate as on ). Based on Castle Biosciences Inc share’s latest price of $18.19 as on May 13, 2026 at 10:43 pm IST, you will get 0.5498 shares of Castle Biosciences Inc. Learn more about fractional shares .

What are the returns that Castle Biosciences Inc has given to Indian investors in the last 5 years?

Castle Biosciences Inc stock has given -62.79% share price returns and 29.72% dollar appreciation to an Indian investor in the last 5 years.
Read more about How do Currency Exchange Rates impact your returns on US Stock Investments?