What is IV Rank? A Simple Guide for Indian Traders
IV rank shows where current implied volatility sits between its lowest and highest values over the past year, on a scale of 0 to 100. It measures how high IV is relative to its own recent range. A high IV rank means IV is near its yearly high; a low rank means near its low.
IV rank is a close cousin of IV percentile, giving another way to judge whether volatility is high or low. It places current IV on a 0 to 100 scale of its yearly range.
Knowing both helps you read volatility clearly. What follows is a no-nonsense guide for Indian traders. You can study volatility on Stockk.
Key Takeaways
- IV rank places current IV in its yearly range.
- It runs on a scale of 0 to 100.
- A high rank means IV is near its yearly high.
- A low rank means IV is near its yearly low.
- It helps decide between buying and selling volatility.
How is IV rank calculated?
IV Rank = (Current IV minus 1-Year Low) / (1-Year High minus 1-Year Low) × 100
Picture this: a stock's IV ranged from 15% to 45% over the past year, and current IV is 30%. The IV rank is (30 minus 15) divided by (45 minus 15), times 100, which is 50. This means IV sits exactly halfway between its yearly low and high.
How is IV rank different from IV percentile?
IV rank measures where IV sits between its yearly low and high, while IV percentile measures the share of days IV was lower than now. They often agree but can differ: a single extreme spike can stretch the range and lower the rank, while the percentile focuses on frequency. Many traders watch both.
Reading IV rank
| IV rank | Meaning | Bias |
|---|---|---|
| High (e.g. 80+) | IV near yearly high | Favour selling |
| Low (e.g. 20-) | IV near yearly low | Favour buying |
| Around 50 | IV mid-range | Neutral |
Using IV rank in practice
A high IV rank suggests options are expensive relative to the year, favouring selling strategies, while a low rank favours buying. Like IV percentile, it is a context tool, not a standalone signal. Combine it with your market view, the event calendar, and price action for the best results.
Curious to try futures and options yourself? Head to Stockk, open a quick demat account, and use the Knowledge Center whenever you need a refresher.
Futures and Options are leveraged products and carry a high risk of loss that can be more than the money you put in. This article is only for learning and is not a recommendation to trade in derivatives.
Frequently Asked Questions
How is IV rank calculated?
It is current IV minus the yearly low, divided by the yearly high minus low, times 100, placing IV on a 0 to 100 scale of its range.
What does a high IV rank mean?
It means IV is near its yearly high, so options are relatively expensive, which favours selling volatility strategies.
How is IV rank different from IV percentile?
IV rank measures position within the yearly range; IV percentile measures the share of days IV was lower. They often agree but can differ.
Can a spike distort IV rank?
Yes, a single extreme high stretches the range and can lower the rank, so traders watch percentile too for balance.
How do I use IV rank?
Use it to judge whether to favour buying or selling volatility, alongside your view and events.
Investments in securities market are subject to market risks. This article is for educational purposes only and does not constitute investment advice.
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