Free IV Percentile Screener

What is Implied Volatility Percentile?

Implied Volatility (IV) Percentile measures where the current implied volatility of a stock sits relative to its historical range over the past 252 trading days (one year). It answers the question: “On what percentage of days over the past year was IV lower than it is today?” For example, an IV Percentile of 85% means that the current IV is higher than 85% of all daily IV readings over the past year. This metric is essential for options traders because it helps determine whether options are relatively expensive or cheap compared to their recent history.

Unlike IV Rank, which simply measures where current IV falls between the 52-week high and low, IV Percentile accounts for the distribution of IV values. A stock might have had a single spike that pushed IV Rank low, but IV Percentile would still show that current IV is elevated relative to most trading days. This makes IV Percentile a more robust measure for identifying options pricing opportunities.

How to Use This IV Percentile Screener

1. 1

   Review the IV Percentile Table

   The screener automatically loads IV percentile data for popular stocks. Each row shows the current IV, IV Percentile, IV Rank, and the 52-week IV range.

2. 2

   Filter by IV Level

   Use the IV Level filter to focus on stocks with high IV (above 70th percentile) for selling strategies, or low IV (below 30th percentile) for buying strategies.

3. 3

   Sort and Compare

   Sort by IV Percentile, IV Rank, or Current IV to quickly identify the most overpriced or underpriced options across different stocks and sectors.

4. 4

   Apply to Your Strategy

   High IV Percentile stocks are candidates for premium-selling strategies (iron condors, credit spreads). Low IV Percentile stocks are better for premium-buying strategies (long calls, long puts, debit spreads).

IV Percentile vs. IV Rank

Both IV Percentile and IV Rank help traders assess whether implied volatility is high or low relative to history, but they calculate it differently. IV Rank = (Current IV − 52-Week Low IV) ÷ (52-Week High IV − 52-Week Low IV). It tells you where current IV sits between the absolute high and low. IV Percentile = (Number of days IV was lower than current) ÷ 252. It tells you the percentage of days that had lower IV. IV Percentile is generally considered more reliable because it is not distorted by a single extreme IV spike.

Why Use Our IV Percentile Screener?