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CSTL
Castle Biosciences, Inc. Common Stock
stock NASDAQ

At Close

Aug 5, 2026 3:59:56 PM EDT

30.40USD-2.502%(-0.78)520,194

26.29Bid 36.31Ask 10.02Spread

Pre-market

0.00USD-100.000%(-30.39)0

After-hours

Aug 4, 2026 4:00:30 PM EDT

31.18USD0.000%(0.00)0

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Jan 15, 2027

ITM/OTM for Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
5	5	0	11

CSTL Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

CSTL Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

CSTL Jan 15, 2027 Exp. - Max Pain @ $17.50

Puts

Calls

CSTL Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
35.00 C	0.95	+46.15%	1	5	06-08	CSTL270115C00035000
30.00 C	0	0%	0			CSTL270115C00030000
25.00 C	4.10	+146.99%	1	2	07-06	CSTL270115C00025000
22.50 C	5.90	0%	1	0	07-02	CSTL270115C00022500
20.00 C	0	0%	0			CSTL270115C00020000
17.50 C	0	0%	0			CSTL270115C00017500
15.00 C	0	0%	0			CSTL270115C00015000
12.50 C	0	0%	0			CSTL270115C00012500
10.00 C	0	0%	0			CSTL270115C00010000
7.50 C	0	0%	0			CSTL270115C00007500
5.00 C	19.30	0%	2	1	06-26	CSTL270115C00005000
2.50 C	21.80	+14.62%	2	2	06-26	CSTL270115C00002500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
35.00 P	0	0%	0			CSTL270115P00035000
30.00 P	0	0%	0			CSTL270115P00030000
25.00 P	4.30	0%	1	1	07-28	CSTL270115P00025000
22.50 P	0	0%	0			CSTL270115P00022500
20.00 P	2.05	-47.44%	1	2	07-29	CSTL270115P00020000
17.50 P	1.20	-51.02%	1	2	07-29	CSTL270115P00017500
15.00 P	0.25	-58.33%	10	4	08-04	CSTL270115P00015000
12.50 P	0.45	-57.14%	1	2	06-26	CSTL270115P00012500
10.00 P	0	0%	0			CSTL270115P00010000
7.50 P	0	0%	0			CSTL270115P00007500
5.00 P	0	0%	0			CSTL270115P00005000
2.50 P	0	0%	0			CSTL270115P00002500

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