CSTL Stock Price Prediction

Castle Biosciences Inc

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16.300

-0.42(-2.512%)1D

Overview
Forecast
Valuation
Earnings

1-Day-Price-Prediction

+0.89%

1-Week Prediction

+0.02%

1-Month Prediction

-5.03%

2026 Prediction

+3.37%

2030 Prediction

+94.79%

Based on our advanced algorithm, we predict that CSTL stock price will experience significant movement in the coming periods. Our 1-day prediction estimates a price of $16.87, while the 1-week outlook suggests a value of $16.72. For the 1-month forecast, we project a price of $15.88. Looking further ahead, our 2026 projection estimates a value of $17.28, with a long-term 2030 forecast reaching $32.57. Stay informed and make strategic decisions with our data-driven insights!

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15.880

Should I Buy Castle Biosciences Inc Stock?

Based on our evaluation of the five key dimensions—Technical Signals, Moving Average trends, Short Sell Data, Similar Chart Pattern Matching and Seasonality Analysis—we have identified the following insights. CSTL has several positive signals and is within a rising trend, so we believe it will perform strongly in the next couple of days or weeks. We therefore hold a positive evaluation of this stock. Our analysis conclusion for this stock is a Strong Buy candidate.

CSTL stock price ended at $16.3 on Tuesday, after losing -2.51%

The Castle Biosciences Inc stock price decreased by -2.51% on the last trading day (22 Jul 2025), dropping from 16.54 to 16.72. Throughout the last trading session, the stock experienced a fluctuation of 4.33% , ranging from a day low of $16.25 to a day high of 16.9539. The price has declined in 7 of the last 10 days, resulting in a total change of -14.08% during this period. On the last day, trading volume increase by 79.63K shares, with the falling prices. This could serve as an early warning, indicating that risk may slightly increase in the coming days. In total, 543.37K shares were traded, amounting to approximately 9.04M.

CSTL Technical Signals

CSTL(Castle Biosciences Inc Corp) has 4 buy signals and 3 sell signals now. The current trend is consolidation starting from 2025-07-10. The total price change during this trend is -15.73%. Recently, the price has increased significantly with an increase in volume, indicating a strong bullish signal. The average turnover of CSTL over the last 5 trading days is 7.12M. Overall, the technical indicator signals lean more toward a Neutral outlook in the mid-term.

CSTL Moving Average Analysis

Castle Biosciences Inc's overall moving average trend leans more bearish as of Tuesday, July 22, 2025, with 3 negative signals and 1 positive signal. In the mid-term, the SMA_20 being above the SMA_60 signals a strong bullish trend. There will be some resistance from the lines at $20.88, and $22.42. A break-up above any of these levels will issue buy signals. There will be some support from the lines at $15.93, and $14.40. A break-down below any of these levels will issue sell signals.

CSTL Short Selling Analysis

The short sale ratio of Castle Biosciences Inc(CSTL) as of 17 Jul 2025 is 19.74%, rising from last trading day. With increasing price from 18.68 to 17.39. The short sell activity indicate that short sellers may be anticipating further declines.

Technical Signal

Technical Signals Summary

Neutral

Sell

Buy

Moving Average

Swing

Negative

Stock Price Below SMA_5

Short Term

Negative

SMA_5 Below SMA_20

Mid Term

Positive

SMA_20 Above SMA_60

Long Term

Negative

SMA_60 Below SMA_200

Short Selling

Close Price

Short Sale Ratio

Short Sale Volume

4 Bullish Signals

When Value satisfies Signal, Indicator signals Bullish

Indicators

Signal

Value

Meaning

Stochastic Oscillator %K (14, 3, 3)

STOCHk_14_3_3 < 20

5.331

Bullish

Commodity Channel Index (20 days, 0.015 constant)

CCI_20_0.015 < -100

-218.75

Bullish

Stochastic RSI %K (14, 14, 3, 3)

STOCHRSIk_14_14_3_3 < 20

1.831

Bullish

Williams %R (14 days)

WILLR_14 < -80

-89.145

Bullish

3 Bearish Signals

When Value satisfies Signal, Indicator signals Bearish

Indicators

Signal

Value

Meaning

Awesome Oscillator (5, 34)

AO_5_34 < 0

-0.757

Bearish

Momentum (10 days)

MOM_10 < 0

-2.74

Bearish

Moving Average Convergence Divergence (12, 26, 9)

MACD_12_26_9 < 0

-0.278

Bearish

CSTL Stock Forecast

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

Month	Min. Price	Avg. Price	Max. Price	Potential ROI

Jan 2026	$11.13	$16.23	$17.82	-16.67%
Feb 2026	$18.08	$22.25	$25.88	+14.30%
Mar 2026	$15.79	$16.23	$18.48	-16.67%
Apr 2026	$18.64	$20.14	$22.56	+3.43%
May 2026	$15.96	$18.73	$20.72	-3.82%
Jun 2026	$15.67	$20.16	$22.85	+3.54%
Jul 2026	$13.46	$17.28	$18.72	-11.23%
Aug 2026	$17.34	$20.29	$23.62	+4.21%
Sep 2026	$12.03	$16.79	$16.89	-13.78%
Oct 2026	$19.10	$20.00	$20.37	+2.74%
Nov 2026	$19.65	$20.03	$23.69	+2.86%
Dec 2026	$12.86	$16.23	$18.34	-16.67%

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In 2026, Castle Biosciences Inc (CSTL) is anticipated to change hands in a trading channel between $11.13 and $25.88.

Castle Biosciences Inc Stock Forecast 2026

Jan 2026: CSTL Stock Forecast

Potential ROI: -16.67%

In Jan 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $16.23. The price is predicted to fluctuate between a low of $11.13 and a high of $17.82.

Feb 2026: CSTL Stock Forecast

Potential ROI: 14.30%

In Feb 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $22.25. The price is predicted to fluctuate between a low of $18.08 and a high of $25.88.

Mar 2026: CSTL Stock Forecast

Potential ROI: -16.67%

In Mar 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $16.23. The price is predicted to fluctuate between a low of $15.79 and a high of $18.48.

Apr 2026: CSTL Stock Forecast

Potential ROI: 3.43%

In Apr 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $20.14. The price is predicted to fluctuate between a low of $18.64 and a high of $22.56.

May 2026: CSTL Stock Forecast

Potential ROI: -3.82%

In May 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $18.73. The price is predicted to fluctuate between a low of $15.96 and a high of $20.72.

Jun 2026: CSTL Stock Forecast

Potential ROI: 3.54%

In Jun 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $20.16. The price is predicted to fluctuate between a low of $15.67 and a high of $22.85.

Jul 2026: CSTL Stock Forecast

Potential ROI: -11.23%

In Jul 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $17.28. The price is predicted to fluctuate between a low of $13.46 and a high of $18.72.

Aug 2026: CSTL Stock Forecast

Potential ROI: 4.21%

In Aug 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $20.29. The price is predicted to fluctuate between a low of $17.34 and a high of $23.62.

Sep 2026: CSTL Stock Forecast

Potential ROI: -13.78%

In Sep 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $16.79. The price is predicted to fluctuate between a low of $12.03 and a high of $16.89.

Oct 2026: CSTL Stock Forecast

Potential ROI: 2.74%

In Oct 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $20.00. The price is predicted to fluctuate between a low of $19.10 and a high of $20.37.

Nov 2026: CSTL Stock Forecast

Potential ROI: 2.86%

In Nov 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $20.03. The price is predicted to fluctuate between a low of $19.65 and a high of $23.69.

Dec 2026: CSTL Stock Forecast

Potential ROI: -16.67%

In Dec 2026, Castle Biosciences Inc's value is forecasted to reach an average price of $16.23. The price is predicted to fluctuate between a low of $12.86 and a high of $18.34.

CSTL Price Prediction & Forecast by Similar Chart Analysis

Based on historical patterns and backtesting of stocks with similar movements to Castle Biosciences Inc(CSTL), our algorithm predicts CSTL's 1-month price at $16.91, with an 2.22%upwardshift. Using a similarity score up to 95.66%and other factors, This forecast updates weekly, adjusting for significant deviations.

Similar Chart

The price prediction chart for Castle Biosciences Inc (CSTL.O) stock, as of Sunday, July 20, 2025 , forecasts a 2.22% change over the next month, based on its high correlation with BAX.N stock patterns. The similarity between their price movements over the analyzed periods is 95.66%. The right panel lists other stocks with similar price patterns. This prediction is updated every week.

CSTL

Future prediction

Up: 2.22%

BAX

Up: 2.22%Similarity: 95.66%

Name

Similarity

Up/Down

BAX.N

95.66%

+2.22%

MATW.O

94.91%

+0.87%

FIS.N

94.69%

-1.00%

UAL.O

94.67%

+0.44%

HBM.N

94.58%

+6.08%

ZYXI.O

94.33%

+60.10%

ACDC.O

94.29%

+33.16%

MTDR.N

94.26%

+13.16%

MU.O

94.18%

+25.40%

SNX.N

94.02%

+12.68%

CSTL Seasonality Analysis

Based on CSTL's historical stock price data across all years, the probability of a positive return in July is66.67%, suggesting it maybe an ideal month to invest in CSTL. In contrast,Augustoffers the highest probability of positive returns at100.00%, making it a potentially strong month for investment.

However, this is only a prediction based on one method, and a comprehensive assessment of the stock's future trend should consider additional factors. Our final stock price commentary incorporates three main evaluation dimensions: technical signals, Moving Average trends, and similar chart pattern matching, with the first two dimensions carrying the primary weight to ensure a more robust and accurate forecast.

Monthly Seasonality

The radar chart shows that buying Castle Biosciences Inc (CSTL.O) stock in August has the highest probability of a positive return (100.00%), while September has the lowest probability (16.67%).

Performance Seasonality

The chart shows Castle Biosciences Inc. (CSTL)'s annual stock price return for the past three years, helping you analyze price trends and identify recurring trends on an annual basis.