State Street SPDR S&P 600 Small Cap Growth ETF (SLYG)'s 30-day implied volatility (IV30) was 18.1% at the close on October 21, 2026, up from 16.7% the day before, against a 52-week range of 11.3% to 29.5%. Its 20-day historical volatility was 14.6%.

Key numbers

30-day implied volatility (IV30): 18.1%
IV30 52-week range: 11.3% to 29.5% (median 17.2%)
Historical volatility: 20-day 14.6%, 1-year 18.1%
Implied move by the nearest expiration: ±1.1%

Data as of October 21, 2026.

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

Name: SLYG Implied Volatility
Creator: Market Chameleon