← Back to Glossary

Risk & Analysis implied volatilityIVRIV rankvolatilityoptions selling

Implied Volatility Rank (IVR)

Implied Volatility Rank (IVR) measures the current implied volatility (IV) of an asset on a strict linear scale (0 to 100) relative to its absolute highest and lowest IV levels over the past year (252 trading days).

Examples

High IVR: Tech giant ABC is reporting earnings tomorrow. Due to the upcoming announcement, its current IV has surged to 80%. Over the past 52 weeks, ABC’s IV reached a maximum peak of 90% and hit a floor of 30%.
$\rightarrow$ Trading Implication: With an IVR of 83.33, implied volatility is crushing against the top of its historical range. Options are exceptionally expensive. This is a prime environment to sell premium (e.g., Short Strangles, Iron Condors) to capture the imminent post-earnings Volatility Crush.
$$\text{IVR} = \frac{80 - 30}{90 - 30} \times 100 = \mathbf{83.33\%}$$

Low IVR Disrupted by an Outlier: Six months ago, Stock XYZ suffered a massive, one-day short squeeze, causing its IV to explode to an astronomical 200% before immediately dropping back down. Today, general market anxiety pushes XYZ’s IV to a historically high 60% (its normal baseline is 35%).
$\rightarrow$ Trading Implication: The raw IV of 60% is very high for this stock, but the IVR flashes a misleadingly low 15.15. A retail trader relying solely on IVR would mistakenly assume options are cheap and buy calls or puts. In reality, the single 200% outlier is distorting the scale. (Note: This is exactly where you would cross-reference the IV Percentile to catch the anomaly).
$$\text{IVR} = \frac{60 - 35}{200 - 35} \times 100 = \mathbf{15.15\%}$$

Definition

IVR calculates exactly where the current IV sits within its absolute 52-week boundaries. Every percentage point on the rank represents a linear step between the absolute floor and the absolute ceiling. $$\text{IVR} = \frac{\text{IV}_{\text{current}} - \text{IV}_{\text{52w_min}}}{\text{IV}_{\text{52w_max}} - \text{IV}_{\text{52w_min}}} \times 100$$

• IVR = 100: The asset's implied volatility is currently at its absolute highest point of the past year.
• IVR = 0: The asset's implied volatility is at its absolute lowest point of the past year.

Practical relevance

IVR functions as a binary gatekeeper for capital allocation. It tells you whether you should be a net-buyer or a net-seller of insurance (options premium) in the marketplace.

• High IVR (e.g. > 50 to 100) $\rightarrow$ Net Seller of Volatility

  • Market Condition: Human fear or event-driven anticipation has driven option prices to historical extremes. Options are overvalued relative to the asset's typical behavior.
  • Core Objective: Profit from time decay (Theta) and a contraction in volatility (Vega).
  • Popular Target Strategies: Short Puts, Covered Calls, Credit Spreads, Iron Condors, Naked Strangles.

• Low IVR (e.g. 0 to < 30) $\rightarrow$ Net Buyer of Volatility

  • Market Condition: The market is complacent. Option premiums are dirt cheap, offering minimal downside risk from further volatility contraction.
  • Core Objective: Leverage cheap asymmetric bets where a sudden expansion in volatility will rapidly inflate option values.
  • Target Strategies: Long Calls/Puts, Debit Spreads, Calendar Spreads, Long Straddles.

• Best Asset Classes: IVR excels on individual equities with cyclical, predictable catalysts—specifically earnings seasons, product launches, or regulatory decisions (e.g., FDA approvals in biotech).

• The Broker Blindspot: Some options trading platforms display IVR as their default volatility metric. Make sure to verify a low IVR against a chart to ensure it isn't being suppressed by a historic black-swan spike.