Post Holdings (POST)'s 30-day implied volatility (IV30) was 32.5% at the close on October 16, 2026, down from 32.8% the day before, against a 52-week range of 18.2% to 43.7%. Its 20-day historical volatility was 28.4%.
Key numbers
30-day implied volatility (IV30): 32.5%
IV30 52-week range: 18.2% to 43.7% (median 27.9%)
Historical volatility: 20-day 28.4%, 1-year 30.4%
Implied move by the nearest expiration: ±1.4%
Data as of October 16, 2026.
POST Implied Volatility (IV) vs Historical Volatility (HV)
The POST IV term structure shows the implied volatility difference between different maturity dates.