IV Expected-Range Calculator
The range the options market has already priced in
% annualized
calendar days
–
–
–
1 Standard Deviation~68% of the time
–
–
2 Standard Deviations~95% of the time
–
–
Move = price × IV × √(days ÷ 365). This is the range option sellers have already priced — price stays inside the 1SD band roughly two days out of three.