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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

OverviewMax PainHistoricalExchangesShortsMore

CSTL Max Pain Summary

The max pain for CSTL on August 21st, 2026 is $25.00.

CSTL Option Chain Summary

	Calls		Puts		Max	P/C	Price vs.
Exp.	ITM	OTM	ITM	OTM	Pain¹	Ratio²	Max Pain
Aug 21, 2026	15	0	0	78	25.00	5.20	+21.60%
Sep 18, 2026	5	2	0	0	12.50	0.00	+143.20%
Oct 16, 2026	56	215	1	37	20.00	0.14	+52.00%
Jan 15, 2027	5	5	0	11	17.50	1.10	+73.71%
Totals	81 303 H	222	1 127 H	126		0.42

¹ Maximum pain is the strike price with the most open puts and calls and the price at which the stock would cause financial losses for the largest number of option holders at expiration. Investopedia

² In general, greater than 0.7 suggests bearish sentiment is building in the market; below 0.7 is considered a bullish indicator. Investopedia

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CSTL Max Pain Summary

CSTL Option Chain Summary

CSTL
Castle Biosciences, Inc. Common Stock
stock NASDAQ