Dexcom (DXCM)'s 30-day implied volatility (IV30) was 37.6% at the close on November 6, 2026, down from 42.0% the day before, against a 52-week range of 25.0% to 64.5%. Its 20-day historical volatility was 41.7%.
Key numbers
30-day implied volatility (IV30): 37.6%
IV30 52-week range: 25.0% to 64.5% (median 41.0%)
Historical volatility: 20-day 41.7%, 1-year 36.1%
Implied move by the nearest expiration: ±2.8%
Data as of November 6, 2026.
DXCM Implied Volatility (IV) vs Historical Volatility (HV)
The DXCM IV term structure shows the implied volatility difference between different maturity dates.