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Castle Biosciences (CSTL)

(Delayed Data from NSDQ)

$19.76 USD

19.76
1,272,159

-0.59 (-2.90%)

Updated Aug 6, 2025 04:00 PM ET

After-Market: $19.75 -0.01 (-0.05%) 7:08 PM ET

Zacks Rank:

This is our short term rating system that serves as a timeliness indicator for stocks over the next 1 to 3 months. How good is it? See rankings and related performance below.

Zacks Rank Definition Annualized Return
1Strong Buy23.75%
2Buy17.82%
3Hold9.58%
4Sell5.28%
5Strong Sell2.61%
S&P50011.30%

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4-Sell of 5       4  

Style Scores:

The Style Scores are a complementary set of indicators to use alongside the Zacks Rank. It allows the user to better focus on the stocks that are the best fit for his or her personal trading style.

The scores are based on the trading styles of Value, Growth, and Momentum. There's also a VGM Score ('V' for Value, 'G' for Growth and 'M' for Momentum), which combines the weighted average of the individual style scores into one score.

  • Value Score A
  • Growth Score A
  • Momentum Score A
  • VGM Score A

Within each Score, stocks are graded into five groups: A, B, C, D and F. As you might remember from your school days, an A, is better than a B; a B is better than a C; a C is better than a D; and a D is better than an F.

As an investor, you want to buy stocks with the highest probability of success. That means you want to buy stocks with a Zacks Rank #1 or #2, Strong Buy or Buy, which also has a Score of an A or a B in your personal trading style.

Zacks Style Scores Education - Learn more about the Zacks Style Scores

B Value D Growth D Momentum C VGM

Industry Rank:

The Zacks Industry Rank assigns a rating to each of the 265 X (Expanded) Industries based on their average Zacks Rank.

An industry with a larger percentage of Zacks Rank #1's and #2's will have a better average Zacks Rank than one with a larger percentage of Zacks Rank #4's and #5's.

The industry with the best average Zacks Rank would be considered the top industry (1 out of 265), which would place it in the top 1% of Zacks Ranked Industries. The industry with the worst average Zacks Rank (265 out of 265) would place in the bottom 1%.

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Zacks Industry Rank Education -- Learn more about the Zacks Industry Rank

Bottom 41% (144 out of 246)

Industry: Medical - Biomedical and Genetics

Zacks News

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VRTX Down as Non-Opioid Drug Shows Similar Pain Reduction as Placebo

Vertex announces data from a phase II study evaluating its NaV1.8 pain signal inhibitor, suzetrigine, for treating painful lumbosacral radiculopathy. Shares down.

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LLY Stock Up as FDA Removes Mounjaro, Zepbound From Shortage List

Eli Lilly stock gains as the FDA removes tirzepatide drugs from the drug shortage list following a thorough reevaluation.

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MRK's Pivotal Study on Two-Drug, Once-Daily HIV Pill Meets Goals

Merck posts positive data from two phase III studies evaluating a two-drug, single-tablet regimen of doravirine/islatravir in adults with HIV-1 infection.

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Roche's Prasinezumab Misses Goal in Parkinson's Disease Study

The phase IIb PADOVA study, evaluating Roche's prasinezumab in people with early-stage Parkinson's disease, misses the primary endpoint.

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KRYS Reports Upbeat Initial Data From Lung Cancer Study of KB707

Krystal Biotech reports initial data from a phase I/II study showing therapeutic benefit in NSCLC patients treated with its immunotherapy candidate, KB707.

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SRPT Finishes Enrolment in Late-Stage Study for Rare Muscular Disorder

The phase III EMERGENE study evaluates Sarepta's experimental gene therapy for an ultra-rare form of muscle disorder for which there is no treatment beyond symptom management.

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REGN's Eylea HD Shows Non-Inferiority to Eylea in Eye Disease Study

Regeneron's phase III study evaluating Eylea HD against stand-of-care Eylea treatment meets the primary endpoint of non-inferior visual gain in RVO patients.

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GILD's Trodelvy Gets Second Breakthrough Therapy Tag for Lung Cancer

Gilead announces that the FDA grants a second Breakthrough Therapy designation to Trodelvy for the extensive-stage small cell lung cancer indication.

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NVO to Invest $1.2B in New Rare Disease Drugs Facility in Denmark

Novo Nordisk is set to invest $1.2 billion for a new facility in Odense, Denmark, to produce various product types for rare diseases, including haemophilia.

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EWTX Stock Rises on Upbeat Data From Rare Muscular Disorder Study

Data from a mid-stage study show that treatment with Edgewise's experimental drug reduces levels of a biomarker related to skeletal muscle damage.

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Merck Ends Development of Two Experimental Cancer Drugs

MRK's decision to discontinue the development of two cancer drugs follows a series of setbacks in multiple late-stage studies.

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FDA Gives CRL to J&J's BLA for Subcutaneous Rybrevant in NSCLC

The FDA issues a complete response letter to JNJ's BLA seeking approval for the subcutaneous formulation of Rybrevant in EGFR-mutated non-small cell lung cancer.

Anirudha Bhagat headshot

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CHMP Endorses Merck's Kidney Cancer Drug for Two Indications

The CHMP's opinion is based on positive results from two late-stage studies on MRK's Welireg in two indications associated with renal cell carcinoma.

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EDIT Stock Falls on Decision to End Reni-Cel Studies, Cut Workforce

Editas stock falls as it ends development of reni-cel for SCD and TDT following failed attempts to find a commercial partner. It plans to cut workforce by 65%.

Zacks Equity Research

Wall Street Analysts Believe Castle Biosciences (CSTL) Could Rally 42.02%: Here's is How to Trade

The average of price targets set by Wall Street analysts indicates a potential upside of 42% in Castle Biosciences (CSTL). While the effectiveness of this highly sought-after metric is questionable, the positive trend in earnings estimate revisions might translate into an upside in the stock.

Zacks Equity Research

ABBV to Acquire Nimble Therapeutics to Strengthen Immunology Pipeline

AbbVie is set to acquire privately held biotech, Nimble Therapeutics, for $200 million to strengthen its immunology pipeline.

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KRYS Stock Down on Initial Clinical Updates on KB407 & KB408

Krystal Biotech posts initial clinical updates on its two pipeline candidates, KB407 and KB408, which are being developed to treat rare respiratory diseases.

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SNY's Tolebrutinib Gets FDA Breakthrough Therapy Tag for nrSPMS

The FDA bestows a Breakthrough Therapy designation to Sanofi's tolebrutinib for treating non-relapsing secondary progressive multiple sclerosis.

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NVO Gets Positive CHMP Opinion in EU for Ozempic Expanded Use in CKD

Novo Nordisk's diabetes drug, Ozempic, receives positive CHMP opinion in the EU for expanded use in T2D and CKD patients.

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Here's Why Q32 Bio Stock Hit a New Record Low on Wednesday

Shares of QTTB fall after its experimental autoimmune disease drug failed to meet the primary endpoint in a mid-stage study for eczema.

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CORT's Dazucorilant Fails to Meet Goal in Neurologic Disorder Study

The phase II DAZALS study evaluating Corcept's dazucorilant in patients with amyotrophic lateral sclerosis fails to meet the primary goal.

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AnaptysBio Stock Down as Eczema Study Fails to Meet Goals

Phase IIb study on ANAB's ANB032 for atopic dermatitis fails to meet goals. The company decides to discontinue any further investment in the candidate.

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Here's Why Agios Stock Plummeted More Than 20% on Monday

The fall in AGIO stock comes after reports of an unexpected side effect linked to its sole-marketed drug Pyrukynd in thalassemia patients.