IV rank
Today's implied volatility expressed as a percentage of the 52-week high-low range. Rank 0 means at the year's low IV; rank 100 means at the year's high. A common heuristic: rank above 50 favors selling premium, rank below 30 favors buying premium.
See also
Learn it in context
Every term here appears inside the lessons and the simulator in the app, shown in use.
Get the app