Castle Biosciences (CSTL)'s 30-day implied volatility (IV30) was 46.6% at the close on November 6, 2026, down from 61.4% the day before, against a 52-week range of 26.7% to 79.7%. Its 20-day historical volatility was 56.1%.

Key numbers

30-day implied volatility (IV30): 46.6%
IV30 52-week range: 26.7% to 79.7% (median 46.7%)
Historical volatility: 20-day 56.1%, 1-year 52.0%
Implied move by the nearest expiration: ±4.7%

Data as of November 6, 2026.

CSTL Implied Volatility (IV) vs Historical Volatility (HV)

Name: CSTL Implied Volatility
Creator: Market Chameleon