Ribbon Communications (RBBN)'s 30-day implied volatility (IV30) was 67.2% at the close on October 29, 2026, up from 62.4% the day before, against a 52-week range of 30.6% to 109.5%. Its 20-day historical volatility was 74.6%.

Key numbers

30-day implied volatility (IV30): 67.2%
IV30 52-week range: 30.6% to 109.5% (median 51.5%)
Historical volatility: 20-day 74.6%, 1-year 59.8%
Implied move by the nearest expiration: ±3.9%

Data as of October 29, 2026.

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

Name: RBBN Implied Volatility
Creator: Market Chameleon