Logo image of CSTL

CASTLE BIOSCIENCES INC (CSTL) Stock Technical Analysis

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

39.34 USD
-0.55 (-1.38%)
Last: 1/9/2026, 8:00:01 PM
39.56 USD
+0.22 (+0.56%)
After Hours: 1/9/2026, 8:00:01 PM
Technical Rating and Analysis

9

Overall CSTL gets a technical rating of 9 out of 10. 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 88% 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.
In the last month CSTL has a been trading in the 36.63 - 42.17 range, which is quite wide. It is currently trading in the middle of this range where prices have been consolidating recently, this may present a good entry opportunity, but some resistance may be present above.
When comparing the yearly performance of all stocks, we notice that CSTL is one of the better performing stocks in the market, outperforming 92% of all stocks. However, this overall good ranking is mostly due to the recent strong 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. Prices have been consolidating lately. There is a support zone below the current price at 38.53, a Stop Loss order could be placed below this zone. Very recently a Pocket Pivot signal was observed. This is another positive sign.

  • A Pocket Pivot is a price/volume accumulation pattern. A Pocket Pivot occurs when price moves up with volume higher than the maximum down volume registered in the previous 10 days.
Support and Resistance Analysis

29.75

41.81

2 important support areas can be observed.

  • A support zone ranging from 38.53 to 38.53. This zone is formed by a combination of multiple trend lines in multiple time frames.
  • Support @30.05 from a trend line in the daily time frame.

When analyzing the resistance we notice 2 important areas.

  • A resistance zone ranging from 39.43 to 39.96. This zone is formed by a combination of multiple trend lines and important moving averages in multiple time frames.
  • Resistance @41.40 from a horizontal line in the daily time frame.
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 Strength92.54POSITIVECSTL has a high relative strength, it outperformed 92.54% off all stocks on the market.
Simple Moving Average/SMA (20)UPMIXEDThe current price of CSTL is below 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)54.94NEUTRALThe RSI value for CSTL is a neutral value.
Moving Average Convergence Divergence/MACD (12, 26, 9)-0.25NEGATIVEThe MACD value suggests CSTL has a negative trend.
Stochastics (14,3)54.38NEUTRALThe Stochastics value for CSTL is a neutral value.
Average True Range in percent/ATR (20)3.63MEDIUM VOLATILITYThe ATR as a percentage value for CSTL suggests some volalility.
Average Directional Index/ADX (14)35.34POSITIVEThe 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
39.9738.521.45 (3.63%)25.00%
An entry @39.97. This is a Buy Stop order right above the resistance zone.An exit @38.52. This is a Stop Loss order right below the support zone.The worst case loss on the trade is limited to 1.45 points, which is 3.63%.For a 0.91% total portfolio risk, you can invest 25.00% 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 (1/9/2026, 8:00:01 PM)

After market: 39.56 +0.22 (+0.56%)

39.34

-0.55 (-1.38%)

Chartmill TA Rating
Chartmill Setup Rating
Sector
GICS SectorHealth Care
GICS IndustryHealth Care Providers & Services
Performance
% Chg-1.38%
1 Week2.08%
2 Weeks-1.87%
1 Month3.47%
3 Month70.45%
6 Month100.1%
12 Month30.05%
2 Year70.45%
3 Year45.27%
5 Year-41.13%
10 YearN/A
15 YearN/A
Volatility
ATR(14)1.43
ATR(20)%3.63%
ATR Inc28.28%
Range Today2.03
ADR(20)1.38
ADR(20)%3.51%
Trend & SMA
ST Trend
LT Trend
SMA(5)
SMA(10)
SMA(20)
SMA(50)
SMA(100)
SMA(200)
Relative Strength & Ranges
CRS92.54
3 months CRS98.12
6 months CRS96.46
Mansfield4.66
10 Day High41.35
10 Day Low37.29
20 Day High42.18
20 Day Low36.63
52 Week High42.18
52 Week Low14.59
CS1 End38.53
CR1 Start39.43
Volume & EV
DER(3)-1.69%
DER(5)-2.46%
Volume334.10K
Volume Incr-1.74%
Vol(5)365.38K
Vol(50)447.88K

CASTLE BIOSCIENCES INC / CSTL FAQ

What is the technical rating for CSTL stock?

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


Can you provide the trend direction for CASTLE BIOSCIENCES INC?

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 54.9351. This indicates that the stock is currently neutral.


What is the buy/sell signal for CASTLE BIOSCIENCES INC (CSTL) stock?

The buy/sell signal for CASTLE BIOSCIENCES INC (CSTL) is buy as both the short term and long term trends are positive.


What is the support and resistance level for CSTL stock?

CASTLE BIOSCIENCES INC (CSTL) has a support level at 38.53 and a resistance level at 39.43. Check the full technical report for our detailed analysis of CSTL support and resistance levels.