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Castle Biosciences, Inc. - Common stock (NQ:CSTL)

36.65 +1.09 (+3.07%)
Delayed Quote Updated: 4:00 PM EDT, Oct 5, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 377,255
Open 35.45
Bid (Size) 36.52 (400)
Ask (Size) 36.65 (400)
Prev. Close 35.56
Today's Range 35.10 - 36.76
52wk Range 17.72 - 44.28
Shares Outstanding 25,167,365
Dividend Yield N/A

Performance

52-Week Range 17.2% below 52-week high
36.65
17.7252W Low 44.2852W High
1 Week 0.9% below 1-week high
34.141W Low 36.991W High

Castle Biosciences, Inc. - Common stock (CSTL) traded between $17.72 and $44.28 over the past 52 weeks and last traded at $36.65, 17.2% below its 52-week high. Over the past week it ranged between $34.14 and $36.99.

Past 12 Months
+2.0%
+11.4%
+51.4%
+48.2%
-4.9%
+57.2%
1W +$0.72
1M +$3.74
3M +$12.44
6M +$11.92
YTD -$1.89
1Y +$13.34

CSTL was +57.2% over the past year, +48.2% over six months, -4.9% year to date, +2.0% in the last week.

12 Months vs Market
CSTL
+57.2%
DIA
+9.7%
SPY
+15.4%
QQQ
+24.4%
IWM
+14.8%

Over the past 12 months CSTL returned +57.2% versus DIA (Dow) +9.7%, SPY (S&P 500) +15.4%, QQQ (Nasdaq 100) +24.4% and IWM (Russell 2000) +14.8%.

Volume & Liquidity 0.96× 3-mo avg
Today 377,255 3-mo avg 393.1K
1W
375.6K
1M
357.3K
3M
393.1K
6M
395.4K
YTD
397.3K
1Y
398.0K

CSTL most recently traded 377,255 shares against a 3-month average daily volume of 393.1K.

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Frequently Asked Questions

Is Castle Biosciences, Inc. - Common stock publicly traded?
Yes, Castle Biosciences, Inc. - Common stock is publicly traded.
What exchange does Castle Biosciences, Inc. - Common stock trade on?
Castle Biosciences, Inc. - Common stock trades on the Nasdaq Stock Market
What is the ticker symbol for Castle Biosciences, Inc. - Common stock?
The ticker symbol for Castle Biosciences, Inc. - Common stock is CSTL on the Nasdaq Stock Market
What is the current price of Castle Biosciences, Inc. - Common stock?
The current price of Castle Biosciences, Inc. - Common stock is 36.65
When was Castle Biosciences, Inc. - Common stock last traded?
The last trade of Castle Biosciences, Inc. - Common stock was at 10/05/26 04:00 PM ET
What is the market capitalization of Castle Biosciences, Inc. - Common stock?
The market capitalization of Castle Biosciences, Inc. - Common stock is 922.38M
How many shares of Castle Biosciences, Inc. - Common stock are outstanding?
Castle Biosciences, Inc. - Common stock has 922M shares outstanding.
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