Spok Holdings (SPOK)'s 30-day implied volatility (IV30) was 31.0% at the close on November 13, 2026, up from 30.4% the day before, against a 52-week range of 18.5% to 37.7%. Its 20-day historical volatility was 34.7%.
Key numbers
30-day implied volatility (IV30): 31.0%
IV30 52-week range: 18.5% to 37.7% (median 25.6%)
Historical volatility: 20-day 34.7%, 1-year 27.3%
Implied move by the nearest expiration: ±1.9%
Data as of November 13, 2026.
SPOK Implied Volatility (IV) vs Historical Volatility (HV)
The SPOK IV term structure shows the implied volatility difference between different maturity dates.
