IV Rank
IV Rank, also referred to as the Implied Volatility Rank or IVR, is a measurement of how the current IV level of a given equity compares to the last 52 weeks of historical data.
The IV Rank value is provided on a scale between 0 - 100, where a value of 0 would represent the lowest IV value of the year whereas a value of 100 would represent the highest IV value in the previous 52 week period.
For example:
In the last 52 week period ticker ABC's IV ranged from 40% to 80%.
If ticker ABC's IV is currently at 60% it would be an IVR of 50.
You can also sort your stock screeners by IV rank in the filters to display IV rank from highest to lowest, or vice versa.
Likewise, on market maps where you can track realized volatility and myriad other factors across numerous time frames, you can organize the chart by IV rank. In this example, we see $BBAI, a stock that at the time of writing was on a major uptrend in price, sits at an IV rank of around 60.4.
Related Resources:
IV Rank for all optionable equities can be found on the Ticker Screener