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Platform Numbers & Calculations

How can IV Rank be over 100 or less than 0?
Conventional options trading knowledge would lead one to believe that IV Rank (IVR) cannot be higher than 100 or less than 0. Yes, for the most part, that i...
How do I view IVR on a chart?
You can view historical IVR, also known as Implied Volatility Rank, on a chart by visiting the Chart tab in the desktop platform or an enlarged chart in the...