Implied Volatility (Mean) (120-Day)
Implied Volatility (Mean): The forecasted future volatility of the security over the selected time frame, derived from the average of the put and call implied volatilities for options with the relevant expiration date.
S&P 500 (SPAL) had 120-Day Implied Volatility (Mean) of 1.0466 for 2026-09-17.
For much more extensive volatility insights, check out our new product VolVue:
- Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
- Download data in CSV, Excel, JSON, or XML format
- Up to 20 years of data history
- 52-Week Rank and Percentile for all metrics and time frames