Where IV stands now relative to its range over the past year (0–100%). Above 30% it counts as high and suitable for selling options. Above 50% = very high. Different from IV Percentile.
What this rank is
The implied volatility rank (IV Rank) places today's volatility inside its yearly range: zero at the year's low and one hundred at its high. An implied volatility of “30%” is a mute number, but “rank 85” tells you at once: expensive compared with this asset's own habit.
Why rank, not the number
Assets live in different volatility worlds: 30% is sleepy for an emerging tech stock and panic for a large index. The rank calibrates each asset against its own history, so comparison and decisions work across all symbols in one language.
How to use it in decisions
It is the compass for “do I buy volatility or sell it?”: high ranks (70+) favor credit strategies, selling expensive; low ranks (30−) favor buying and debit spreads, buying cheap. It is not a trigger by itself but an environment filter before choosing the family.
Hypothetical example
A stock with a rank of 92 just before earnings (volatility at its yearly highs): a classic environment for premium sellers. Defined-risk credit spreads benefit from the expected crush after the announcement more than buyers of the expensive straddle do.
Common mistake
Automatically selling every high rank: sometimes the peak is justified by a real existential event (a drug under review, a landmark lawsuit), and the cheap seller is whoever sells insurance just before a known earthquake.
Where to see it on the platform
The volatility tools show the rank for every covered symbol, and the strategy guide uses it as the basis for choosing between debit and credit families.
