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

34.42 +0.71 (+2.11%)
Delayed Quote Updated: 4:00 PM EDT, Oct 9, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 249,085
Open 33.52
Bid (Size) 22.00 (900)
Ask (Size) 35.50 (100)
Prev. Close 33.71
Today's Range 33.39 - 34.52
52wk Range 17.72 - 44.28
Shares Outstanding 25,167,365
Dividend Yield N/A

Performance

52-Week Range 22.3% below 52-week high
34.42
17.7252W Low 44.2852W High
1 Week 9.4% below 1-week high
32.251W Low 37.991W High

Castle Biosciences, Inc. - Common stock (CSTL) traded between $17.72 and $44.28 over the past 52 weeks and last traded at $34.42, 22.3% below its 52-week high. Over the past week it ranged between $32.25 and $37.99.

Past 12 Months
-6.1%
+6.5%
+49.8%
+46.3%
-10.7%
+49.1%
1W -$2.23
1M +$2.10
3M +$11.44
6M +$10.89
YTD -$4.12
1Y +$11.34

CSTL was +49.1% over the past year, +46.3% over six months, -10.7% year to date, -6.1% in the last week.

12 Months vs Market
CSTL
+49.1%
DIA
+13.5%
SPY
+19.2%
QQQ
+27.4%
IWM
+17.3%

Over the past 12 months CSTL returned +49.1% versus DIA (Dow) +13.5%, SPY (S&P 500) +19.2%, QQQ (Nasdaq 100) +27.4% and IWM (Russell 2000) +17.3%.

Volume & Liquidity 0.62× 3-mo avg
Today 249,085 3-mo avg 403.2K
1W
392.2K
1M
385.8K
3M
403.2K
6M
398.7K
YTD
397.3K
1Y
399.8K

CSTL most recently traded 249,085 shares against a 3-month average daily volume of 403.2K.

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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 34.42
When was Castle Biosciences, Inc. - Common stock last traded?
The last trade of Castle Biosciences, Inc. - Common stock was at 10/09/26 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 866.26M
How many shares of Castle Biosciences, Inc. - Common stock are outstanding?
Castle Biosciences, Inc. - Common stock has 866M shares outstanding.
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