CSTL Stock Price Prediction
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$
0.000
1-Day-Price-Prediction
+2.7%
1-Week Prediction
+4.72%
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 $40.69, while the 1-week outlook suggests a value of $42.31. For the 1-month forecast, we project a price of $44.15. Looking further ahead, our 2026 projection estimates a value of $16.23, with a long-term 2030 forecast reaching $40.09. Stay informed and make strategic decisions with our data-driven insights!
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 $39.62 on Thursday, after rising 0.53%
The Castle Biosciences Inc stock price increased by 0.53% on the last trading day (04 Dec 2025), rising from 39.41 to 39.62. Throughout the last trading session, the stock experienced a fluctuation of 4.67% , ranging from a day low of $38.73 to a day high of 40.54. The price has declined in 2 of the last 10 days, resulting in a total change of 14.34% during this period. On the last day, trading volume decrease by 136.72K shares, with the rising prices. This could serve as an early warning, indicating that risk may slightly increase in the coming days. In total, 438.45K shares were traded, amounting to approximately 17.48M.
CSTL Technical Signals
CSTL(Castle Biosciences Inc Corp) has 4 buy signals and 3 sell signals now. The current trend is consolidation starting from 2025-11-28. The total price change during this trend is -0.83%. Recently, the price has increased significantly while volume increased, indicating a strong bullish signal. The average turnover of CSTL over the last 5 trading days is 12.36M. 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 bullish as of Friday, December 5, 2025, with 0 negative signals and 4 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 $41.66, and $43.84. A break-up above any of these levels will issue buy signals. There will be some support from the lines at $34.63, and $32.46. 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 03 Dec 2025 is 14.15%, dropping from last trading day. With decreasing price from 39.10 to 39.41. The short sell activity indicate that short sellers may be experiencing short cover.
Technical Signal
Technical Signals Summary
Sell
3
Buy
4
Moving Average
Swing
PositiveStock Price Above SMA_5
Short Term
PositiveSMA_5 Above SMA_20
Mid Term
PositiveSMA_20 Above SMA_60
Long Term
PositiveSMA_60 Above 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
Awesome Oscillator (5, 34)
AO_5_34 > 0
7.827
Bullish
Momentum (10 days)
MOM_10 > 0
4.97
Bullish
Moving Average Convergence Divergence (12, 26, 9)
MACD_12_26_9 > 0
3.194
Bullish
Moving Average
Price crosses above 5-day SMA
--
Bullish
3 Bearish Signals
When Value satisfies Signal, Indicator signals Bearish
Indicators
Signal
Value
Meaning
Relative Strength Index (14 days)
RSI_14 > 70
78.915
Bearish
Stochastic Oscillator %K (14, 3, 3)
STOCHk_14_3_3 > 80
83.879
Bearish
Williams %R (14 days)
WILLR_14 > -20
-12.94
Bearish
CSTL Stock Forecast
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
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 $41.05, with an 2.75%upwardshift. Using a similarity score up to 99.20%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, November 30, 2025 , forecasts a 2.75% change over the next month, based on its high correlation with MDU.N stock patterns. The similarity between their price movements over the analyzed periods is 99.2%. The right panel lists other stocks with similar price patterns. This prediction is updated every week.
CSTL
No Data
MDU
Up: 2.75%Similarity: 99.2%
Name
Similarity
Up/Down
MDU.N
99.20%
+2.75%
PRGS.O
99.12%
+5.91%
GTLS.N
99.07%
-0.18%
KRNT.O
99.04%
-11.99%
CASY.O
99.02%
-4.20%
NET.N
98.97%
+8.47%
RDWR.O
98.97%
+4.78%
INTC.O
98.97%
+9.74%
MPAA.O
98.96%
+28.41%
HLNE.O
98.95%
-7.22%
CSTL Seasonality Analysis
Based on CSTL's historical stock price data across all years, the probability of a positive return in December is57.14%, 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 (14.29%).
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.
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FAQ
Should I buy Castle Biosciences Inc (CSTL.O) stock?
Which months have the highest win rate for buying Castle Biosciences Inc (CSTL.O) stock in a year?
How has Castle Biosciences Inc. (CSTL)'s stock price performed over the past three years?
Which bullish technical signals does CSTL have?
Which bearish technical signals does CSTL have?
Is CSTL a buy based on overall technical signals summary?
What is the trend of Castle Biosciences Inc (CSTL)'s moving average?
What is price prediction for CSTL stock next month?
What is price prediction 2026 for Castle Biosciences Inc (CSTL) Stock?