IV Rank vs. IV Percentile | Skinny on Options Data Science
Jan 20, 2016
By: Sage Anderson
Today on the blog we are "geeking out” about IV Rank and IV Percentile with Dr. Data.
Dr. Data is of course Dr. Mike Rechenthin - our resident expert on options data and modeling - who joined hosts Tom Sosnoff and Tony Battista for an episode of The Skinny on Options Data Science.
Those of you who have followed Dr. Data in the past will know that the "Skinny" series is dedicated to making the underlying math and data of options trading more accessible to the average trader.
The "Skinny" branch of programming on the tastytrade financial network encompasses a range of shows that are easily accessible under the "Find Shows" link on the tastytrade website.
We invite you to explore the series in greater depth if you are searching for more information on math, data, and modeling topics.
On this particular episode, Dr. Data helps viewers better understand the difference between Implied Volatility Rank (IVR) and Implied Volatility Percentile.
Implied Volatility Rank is a favored volatility measure at tastytrade. IVR tells us whether implied volatility is high or low in a specific underlying based on the past year of implied volatility (aka “IV”) data.
For example, if XYZ has had an IV between 30 and 60 over the past year and IV is currently trading at 45, XYZ would have an IV rank of 50%. Since all underlyings have unique IV ranges, stating an arbitrary IV number does not help us decide how we should proceed with a strategy - that's where IVR comes into play.
Understanding where current implied volatility is trading compared to recent history can give a trader a better sense of whether the price of volatility is cheap or expensive given current conditions.
Implied Volatility Percentile (IVP), a totally different calculation, provides traders with another metric by which they can analyze the price of an option. IVP tells us the percentage of days over the last year that implied volatility traded below the current level.
For instance, if IVP is 90%, the understanding is that implied volatility traded below the current level for 90% of the past year’s data. This indicates that implied volatility at the current price is higher than usual.
On the other hand, if IVP is 10%, the understanding is that implied volatility has only traded below current levels 10% of the time over the past year. This second case might indicate that volatility is relatively cheap as compared to the last 12 months of data.
The slide below illustrates visually the differences between IVR and IVP:
Another chart that helps conceptualize these concepts is a plot of SPX implied volatility over the last 12 months. Note the outlying data point that occurred in late summer/early fall as well as how the distribution of implied volatility (right side of graphic) is clustered under 20 for the SPX:
If you want to get a better understanding of the variables that go into the calculations of IVR and IVP, Dr. Data walks viewers through this process during the full episode of The Skinny on Options Data Science. We invite you to watch that at your convenience for a comprehensive look at this information.
Across the trading spectrum, market participants rely on different metrics to help them make trading decisions. Like any system or process, one key is to be consistent in your approach.
Those same principles hold true for utilizing Implied Volatility Rank (IVR) and Implied Volatility Percentile (IVP) in options trading. Both metrics can help a trader evaluate the price of an option relative to recent historical implied volatility in a particular underlying and option.
However, it’s important to be consistent in utilizing these metrics across a portfolio. For example, it wouldn’t make a lot of sense to sell an option based on a high IVR, while buying another one against it based on a low IVP.
Each and every trader finds success by following a unique path.
In the case of IVR vs. IVP it’s key to understanding the difference between the two measurements and then interpreting them in a consistent manner.
We hope you will take the time to review the entire episode on IVR and IVP when your schedule allows.
Please don’t hesitate to follow up with any questions or comments at firstname.lastname@example.org or by leaving a comment below.
Sage Anderson has an extensive background trading equity derivatives and managing volatility-based portfolios. He has traded hundreds of thousands of contracts across the spectrum of industries in the single-stock universe.
Options involve risk and are not suitable for all investors. Please read Characteristics and Risks of Standardized Options before deciding to invest in options.
Sep 7, 2017
Most investors are familiar with what earnings are, but less know about the different strategies and considerations when investing in a company with upcoming earnings. In this post you will learn about what earnings are, the terminology associated with earnings, and how you can place an 'earnings trade.'
Feb 21, 2017
Implied volatility rank (or IV rank for short) is a newer concept in the options trading industry. Any option traders knows what implied volatility is and how it relates to the pricing of options, but few understand what IV rank is. IV rank is a measure that brings relativity to implied volatility.
tastytrade content is provided solely by tastytrade, Inc. (“tastytrade”) and is for informational and educational purposes only. It is not, nor is it intended to be, trading or investment advice or a recommendation that any security, futures contract, transaction or investment strategy is suitable for any person. Trading securities can involve high risk and the loss of any funds invested. tastytrade, through its content, financial programming or otherwise, does not provide investment or financial advice or make investment recommendations. Investment information provided may not be appropriate for all investors, and is provided without respect to individual investor financial sophistication, financial situation, investing time horizon or risk tolerance. tastytrade is not in the business of transacting securities trades, nor does it direct client commodity accounts or give commodity trading advice tailored to any particular client’s situation or investment objectives. Supporting documentation for any claims (including claims made on behalf of options programs), comparison, statistics, or other technical data, if applicable, will be supplied upon request. tastytrade is not a licensed financial advisor, registered investment advisor, or a registered broker-dealer. Options, futures and futures options are not suitable for all investors. Prior to trading securities products, please read the Characteristics and Risks of Standardized Options and the Risk Disclosure for Futures and Options found on tastyworks.com.
tastyworks, Inc. ("tastyworks") is a registered broker-dealer and member of FINRA, NFA and SIPC. tastyworks offers self-directed brokerage accounts to its customers. tastyworks does not give financial or trading advice nor does it make investment recommendations. You alone are responsible for making your investment and trading decisions and for evaluating the merits and risks associated with the use of tastyworks’ systems, services or products. tastyworks is a wholly owned subsidiary of tastytrade, Inc (“tastytrade”). tastytrade is a trademark/servicemark owned by tastytrade.
Quiet Foundation, Inc. (“Quiet Foundation”) is a wholly-owned subsidiary of tastytrade The information on quietfoundation.com is intended for U.S. residents only. All investing involves the risk of loss. Past performance is not a guarantee of future results. Quiet Foundation does not make suitability determinations, nor does it make investment recommendations. You alone are responsible for making your investment and trading decisions and for evaluating the merits and risks associated with the use of Quiet Foundation’s systems, services or products.
Small Exchange, Inc. is a Designated Contract Market registered with the U.S. Commodity Futures Trading Commission. The information on this site should be considered general information and not in any case as a recommendation or advice concerning investment decisions. The reader itself is responsible for the risks associated with an investment decision based on the information stated in this material in light of his or her specific circumstances. The information on this website is for informational purposes only, and does not contend to address the financial objectives, situation, or specific needs of any individual investor. Trading in derivatives and other financial instruments involves risk, please read the Risk Disclosure Statement for Futures and Options. tastytrade is an investor in Small Exchange, Inc.