Logo image of CSTL

CASTLE BIOSCIENCES INC (CSTL) Stock Technical Analysis

USA - Nasdaq - NASDAQ:CSTL - US14843C1053 - Common Stock

38.02 USD
-0.23 (-0.6%)
Last: 12/10/2025, 8:00:01 PM
38.02 USD
0 (0%)
After Hours: 12/10/2025, 8:00:01 PM
Technical Rating and Analysis

9

We assign a technical rating of 9 out of 10 to CSTL. Both in the recent history as in the last year, CSTL has proven to be a steady performer, scoring decent points in every aspect analyzed.

Both the short term and long term trends are positive. This is a very positive sign.
CSTL is one of the better performing stocks in the Health Care Providers & Services industry, it outperforms 90% of 100 stocks in the same industry.
CSTL is currently trading near its 52 week high, which is a good sign. The S&P500 Index however is also trading near new highs, which makes the performance in line with the market.
CSTL is currently showing a bull flag pattern! A bull flag pattern occurs when prices pull back slightly after a strong rise up. This may be a nice opportunity for an entry.
When comparing the yearly performance of all stocks, we notice that CSTL is one of the better performing stocks in the market, outperforming 93% of all stocks. However, this relatively good performance is mostly due to a recent big move.
Weekly and Daily overview Charts
CASTLE BIOSCIENCES INC / CSTL Weekly stock chart
CASTLE BIOSCIENCES INC / CSTL Daily stock chart
Setup Rating and Analysis

6

CSTL has an excellent technical rating and also presents a decent setup pattern. We see reduced volatility while prices have been consolidating in the most recent period. A pullback is taking place, which may present a nice opportunity for an entry. We notice that large players showed an interest for CSTL in the last couple of days, which is a good sign.

  • Behavior of large players is measured by the Effective Volume indicator. This indicator inspects the 1 minute timeframe looking for high volume transactions.
Support and Resistance Analysis

22.98

40.36

When analyzing the support we can see 3 important areas.

  • A support zone ranging from 38.01 to 38.01. This zone is formed by a combination of multiple trend lines in multiple time frames.
  • Support @27.27 from a trend line in the daily time frame.
  • Support @23.21 from a trend line in the daily time frame.

We found 1 important resistance area.

  • A resistance zone ranging from 39.96 to 39.96. This zone is formed by a combination of multiple trend lines in multiple time frames.
Technical Indicator Signal Analysis

The Technical Rating and Setup analysis above combine different indicators and trends in different timeframes. Individual signals from indicators may give more contradictive signals and should always be interpreted in the more global context.

IndicatorValueSignalComment
ChartMill Long Term Trend IndicatorUPPOSITIVEThe long term trend for CSTL is up.
ChartMill Short Term Trend IndicatorUPPOSITIVEThe short term trend for CSTL is up.
ChartMill Relative Strength93.49POSITIVECSTL has a high relative strength, it outperformed 93.49% off all stocks on the market.
Simple Moving Average/SMA (20)UPPOSITIVEThe current price of CSTL is above the rising SMA(20).
Simple Moving Average/SMA (50)UPPOSITIVEThe current price of CSTL is above the rising SMA(50).
Simple Moving Average/SMA (200)UPPOSITIVEThe current price of CSTL is above the rising SMA(200).
Relative Strength Index/RSI (14)65.63NEUTRALThe RSI value for CSTL is a neutral value.
Moving Average Convergence Divergence/MACD (12, 26, 9)-0.5NEGATIVEThe MACD value suggests CSTL has a negative trend.
Stochastics (14,3)63.41NEUTRALThe Stochastics value for CSTL is a neutral value.
Average True Range in percent/ATR (20)3.76MEDIUM VOLATILITYThe ATR as a percentage value for CSTL suggests some volalility.
Average Directional Index/ADX (14)55.96POSITIVEThe high ADX value value for CSTL suggests a strong trend.
Chart- and CandleStick Pattern Analysis
Daily CandleStick Patterns
Bullish Engulfing (D)
Bullish Hammer (D)
Bearish Inverted Hammer (D)
Hanging Man (D)
Bullish Harami (D)
Doji (D)
Gravestone Doji (D)
DragonFly Doji (D)
Bearish Engulfing (D)
Bearish Shooting Star (D)
Bearish Harami (D)
Inside Bar (D)
Red Dog Reversal Down (D)
Red Dog Reversal Up (D)
Dark Cloud Cover (D)
Weekly CandleStick Patterns
Bullish Engulfing (W)
Bullish Hammer (W)
Bearish Inverted Hammer (W)
Hanging Man (W)
Bullish Harami (W)
Doji (W)
Gravestone Doji (W)
DragonFly Doji (W)
Bearish Engulfing (W)
Bearish Shooting Star (W)
Bearish Harami (W)
Inside Bar (W)
Dark Cloud Cover (W)
Daily Chart Patterns
Bull Flag
Bear Flag
Ascending Triangle (D)
Descending Triangle (D)
Symmetrical Triangle (D)
Squeeze
Channel (D)
Channel Up (D)
Channel Down (D)
Rising Wedge (D)
Falling Wedge (D)
Double Bottom (D)
Multiple Bottom (D)
Double Top (D)
Multiple Top (D)
Weekly Chart Patterns
Weekly Bull Flag
Weekly Bear Flag
Squeeze Week
Channel (W)
Double Bottom (W)
Multiple Bottom (W)
Double Top (W)
Multiple Top (W)
Example Setup

Important!: this is just an example which is fully automatically generated based on the analysis above and should in no way be interpreted as a suggestion. Always make your own analysis and determine your own entry and exit points.

ENTRYEXITDISTANCECAPITAL
39.9738.001.97 (4.93%)20.29%
An entry @39.97. This is a Buy Stop order right above the resistance zone.An exit @38.00. This is a Stop Loss order right below the support zone.The worst case loss on the trade is limited to 1.97 points, which is 4.93%.For a 1.00% total portfolio risk, you can invest 20.29% of your capital in this trade.

  • The distance between exit and entry is rather small compared to the average daily movement of CSTL. Please evaluate whether better entry and exit points can be found.
  • The generated setup is based on the nearest support and resistance areas. If you are looking for a more long term trade, probably a wider stop is advisable.
  • This trade setup was generated fully automatically and should not be interpreted as trading advice. Always check the related news for upcoming earnings or other events. Make your own analysis and trade at your own responsibility.
CASTLE BIOSCIENCES INC / CSTL Daily stock chart

CASTLE BIOSCIENCES INC

NASDAQ:CSTL (12/10/2025, 8:00:01 PM)

After market: 38.02 0 (0%)

38.02

-0.23 (-0.6%)

Chartmill TA Rating
Chartmill Setup Rating
Sector
GICS SectorHealth Care
GICS IndustryHealth Care Providers & Services
Performance
% Chg-0.6%
1 Week-3.53%
2 Weeks-4.78%
1 Month8.72%
3 Month77.5%
6 Month102.77%
12 Month31.69%
2 Year76.18%
3 Year61.51%
5 Year-43.38%
10 YearN/A
15 YearN/A
Volatility
ATR(14)1.5
ATR(20)%3.76%
ATR Inc-45.38%
Range Today0.69
ADR(20)1.41
ADR(20)%3.71%
Trend & SMA
ST Trend
LT Trend
SMA(5)
SMA(10)
SMA(20)
SMA(50)
SMA(100)
SMA(200)
Relative Strength & Ranges
CRS93.49
3 months CRS97.71
6 months CRS95.91
Mansfield4.57
10 Day High40.61
10 Day Low37.83
20 Day High40.61
20 Day Low32.96
52 Week High40.61
52 Week Low14.59
CS1 End38.01
CR1 Start39.96
Volume & EV
DER(3)2.42%
DER(5)3.24%
Volume664.30K
Volume Incr3.12%
Vol(5)499.72K
Vol(50)419.37K

CASTLE BIOSCIENCES INC / CSTL FAQ

What is the technical rating for CSTL stock?

ChartMill assigns a technical rating of 9 / 10 to CSTL.


What is the trend direction for CSTL stock?

The current trend direction for CASTLE BIOSCIENCES INC (CSTL) is Bullish.


Can you provide the RSI signal for CASTLE BIOSCIENCES INC?

CASTLE BIOSCIENCES INC (CSTL) has an RSI value of 65.631. This indicates that the stock is currently neutral.


Can you provide the short term momentum for CASTLE BIOSCIENCES INC?

The short term momentum for CASTLE BIOSCIENCES INC (CSTL) is positive.


Can you provide the support and resistance levels for CASTLE BIOSCIENCES INC?

CASTLE BIOSCIENCES INC (CSTL) has a support level at 38.01 and a resistance level at 39.96. Check the full technical report for our detailed analysis of CSTL support and resistance levels.