National Healthcare (NHC)'s 30-day implied volatility (IV30) was 37.0% at the close on October 21, 2026, up from 35.0% the day before, against a 52-week range of 21.3% to 41.3%. Its 20-day historical volatility was 33.6%.

Key numbers

30-day implied volatility (IV30): 37.0%
IV30 52-week range: 21.3% to 41.3% (median 28.1%)
Historical volatility: 20-day 33.6%, 1-year 39.3%
Implied move by the nearest expiration: ±2.2%

Data as of October 21, 2026.

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

Name: NHC Implied Volatility
Creator: Market Chameleon