US equities |

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

33.08 -0.11 (-0.33%)
Delayed Quote Updated: 4:00 PM EDT, Oct 23, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 203,016
Open 33.41
Bid (Size) 22.00 (900)
Ask (Size) 36.60 (2,000)
Prev. Close 33.19
Today's Range 32.69 - 33.62
52wk Range 17.72 - 44.28
Shares Outstanding 25,167,365
Dividend Yield N/A

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Performance

52-Week Range 25.3% below 52-week high
33.08
17.7252W Low 44.2852W High
1 Week 4.7% below 1-week high
31.671W Low 34.721W High

Castle Biosciences, Inc. - Common stock (CSTL) traded between $17.72 and $44.28 over the past 52 weeks and last traded at $33.08, 25.3% below its 52-week high. Over the past week it ranged between $31.67 and $34.72.

Past 12 Months
+2.8%
-6.0%
+35.4%
+32.4%
-14.2%
+35.0%
1W +$0.91
1M -$2.11
3M +$8.64
6M +$8.10
YTD -$5.46
1Y +$8.57

CSTL was +35.0% over the past year, +32.4% over six months, -14.2% year to date, +2.8% in the last week.

12 Months vs Market
CSTL
+35.0%
DIA
+10.4%
SPY
+12.2%
QQQ
+14.1%
IWM
+10.6%

Over the past 12 months CSTL returned +35.0% versus DIA (Dow) +10.4%, SPY (S&P 500) +12.2%, QQQ (Nasdaq 100) +14.1% and IWM (Russell 2000) +10.6%.

Volume & Liquidity 0.51× 3-mo avg
Today 203,016 3-mo avg 399.5K
1W
298.9K
1M
349.9K
3M
399.5K
6M
401.2K
YTD
392.5K
1Y
401.6K

CSTL most recently traded 203,016 shares against a 3-month average daily volume of 399.5K.

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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 33.08
When was Castle Biosciences, Inc. - Common stock last traded?
The last trade of Castle Biosciences, Inc. - Common stock was at 10/23/26 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 832.54M
How many shares of Castle Biosciences, Inc. - Common stock are outstanding?
Castle Biosciences, Inc. - Common stock has 833M shares outstanding.