Understanding and calculating the expected move of a stock/etf/index Understanding and calculating the expected move of a stock/etf/index Understanding and calculating the expected move of a stock/etf/index

Understanding and calculating the expected move of a stock/etf/index

Koen Hoorelbeke

Options Strategist

Summary:  Whether you're an investor or a trader, understanding the expected move of an asset can provide valuable insights into market expectations and potential price fluctuations. By looking at options we get better insights on how the market anticipates current and future movements of any asset like stocks, etf's, indices and more


Consider a stock that's currently trading at $100. If the expected move over the next month is $5, this means the market anticipates the stock could reasonably trade between $95 and $105.

For example today's expected move of the Nasdaq is plus or minus $126.07. Compared with it's expected move of yesterday, which was at $85.18, we know by looking at those numbers that the market anticipates a more volatile day than yesterday.

Another example could be the expected move of Nvidia. Suppose you want to know where the market thinks Nvidia will be trading during the coming year. Using options/implied volatility you can calculate that the market expects Nvidia will be in a range of it's current price of $421.03, plus or minus $146.72.

Does this mean that the price of Nvidia will be between $274.31 and $567.75? No! It could, but it's certainly not a garantuee. It's just an indication of a range where the stock will be trading in, according to market expectations at this moment.

What is the Expected Move of an Asset?

The expected move of a stock or any other asset is a range within which the price is likely to stay over a certain period, based on the market's current expectations.

It's a concept derived from options pricing and reflects the market's collective prediction of the stock's volatility. The expected move is useful for any investor or trader looking to understand potential price ranges.

How to Calculate the Expected Move

There are two common ways to calculate the expected move:
Using Implied Volatility: The standard method involves using the stock's implied volatility. The formula is:

Expected Move = Stock Price * Implied Volatility * Square Root of (Time until expiration / 365)
    Using the formula above:
    Stock Price (AEX index in this case): 753.39
    Implied Volatility (mid volatility, showed in the option chain): 13.86
    Time until expiration: 42
    Expected Move = 753.39 * 13.86/100 * square root of (42/365) = +/- 35.42
   
The Quick and Dirty Way: A simpler method involves looking at the price of an at-the-money (ATM) straddle
(a strategy that involves buying a call and a put with the same strike price and expiration date).
   
    This method is less precise but can be calculated quickly and easily.
   
    Using the quick calculation:
    Expected Move = (13.30 (cost of ATM Call) + 16 (cost of ATM Put) ) = +/- 29.3

How to Use the Expected Move

The expected move can be used differently by investors and traders:

For Investors:
- The expected move can help investors assess whether their expectations align with the market's predictions. If in the example above you think the AEX will go above 850, you know that your expectations are a lot higher than what the market thinks (753 + 35 = 788). Are you too optimistic, or do you know something the market doesn't know? Are you right or is the market better at predicting? Only future will tell. But at least now you have an extra indicator.
- It can also be used to help set take profit or stop loss levels that are in line with market expectations. For example, if you are bullish on the AEX (in the coming 42 days) and you set a stop-loss at 740, you know that this stop-loss could easily be hit as the market anticipates a bigger move in that same time-frame.
- Comparing with previous expected moves of earlier timeframes, it can show whether or not the current timeframe will be more volatile/eventful.

For Traders:
- For options traders, the expected move can guide the selection of strike prices for a lot of strategies like vertical spreads, strangles, iron condors, and many more. For example, a very common way of determining the width of a short strangle is to sell the call and the put outside of the expected move range. In the example above you would set the strike of the call at >785 and the strike of the put <725.
- Another common use is to see what the market expectations are around important events, like earnings reports, or inflation numbers being published.
- Like investors, traders can also use the expected move to check if their expectations align with the market's.

Conclusion

Understanding the expected move of a stock can provide valuable insights into market expectations and potential price fluctuations. However, it's important to remember that the expected move is just that - an expectation. The actual price movement can sometimes be far off from the expected move, especially in volatile markets.

As with any tool, the expected move should be used in conjunction with other analysis methods and not relied upon in isolation.
Disclaimer

Saxo Capital Markets (Australia) Limited prepares and distributes information/research produced within the Saxo Bank Group for informational purposes only. In addition to the disclaimer below, if any general advice is provided, such advice does not take into account your individual objectives, financial situation or needs. You should consider the appropriateness of trading any financial instrument as trading can result in losses that exceed your initial investment. Please refer to our Analysis Disclaimer, and our Financial Services Guide and Product Disclosure Statement. All legal documentation and disclaimers can be found at https://www.home.saxo/en-au/legal/.

The Saxo Bank Group entities each provide execution-only service. Access and use of Saxo News & Research and any Saxo Bank Group website are subject to (i) the Terms of Use; (ii) the full Disclaimer; and (iii) the Risk Warning in addition (where relevant) to the terms governing the use of the website of a member of the Saxo Bank Group.

Saxo News & Research is provided for informational purposes, does not contain (and should not be construed as containing) financial, investment, tax or trading advice or advice of any sort offered, recommended or endorsed by Saxo Bank Group and should not be construed as a record of our trading prices, or as an offer, incentive or solicitation for the subscription, sale or purchase in any financial instrument. No representation or warranty is given as to the accuracy or completeness of this information. All trading or investments you make must be pursuant to your own unprompted and informed self-directed decision. No Saxo Bank Group entity shall be liable for any losses that you may sustain as a result of any investment decision made in reliance on information on Saxo News & Research.

To the extent that any content is construed as investment research, such content was not intended to and has not been prepared in accordance with legal requirements designed to promote the independence of investment research and as such, would be considered as a marketing communication.

None of the information contained here constitutes an offer to purchase or sell a financial instrument, or to make any investments.Saxo Capital Markets does not take into account your personal investment objectives or financial situation and makes no representation and assumes no liability as to the accuracy or completeness of the information nor for any loss arising from any investment made in reliance of this presentation. Any opinions made are subject to change and may be personal to the author. These may not necessarily reflect the opinion of Saxo Capital Markets or its affiliates.

Please read our disclaimers:
- Full Disclaimer (https://www.home.saxo/en-au/legal/disclaimer/saxo-disclaimer)
- Analysis Disclaimer (https://www.home.saxo/en-au/legal/analysis-disclaimer/saxo-analysis-disclaimer)
- Notification on Non-Independent Investment Research (https://www.home.saxo/legal/niird/notification)

Saxo Capital Markets (Australia) Limited
Suite 1, Level 14, 9 Castlereagh St
Sydney NSW 2000
Australia

Contact Saxo

Select region

Australia
Australia

The Saxo trading platform has received numerous awards and recognition. For details of these awards and information on awards visit www.home.saxo/en-au/about-us/awards

Saxo Capital Markets (Australia) Limited ABN 32 110 128 286 AFSL 280372 (‘Saxo’ or ‘Saxo Capital Markets’) is a wholly owned subsidiary of Saxo Bank A/S, headquartered in Denmark. Please refer to our General Business Terms, Financial Services Guide, Product Disclosure Statement and Target Market Determination to consider whether acquiring or continuing to hold financial products is suitable for you, prior to opening an account and investing in a financial product.

Trading in financial instruments carries various risks, and is not suitable for all investors. Please seek expert advice, and always ensure that you fully understand these risks before trading. Saxo Capital Markets does not provide ‘personal’ financial product advice, any information available on this website is ‘general’ in nature and for informational purposes only. Saxo Capital Markets does not take into account an individual’s needs, objectives or financial situation. The Target Market Determination should assist you in determining whether any of the products or services we offer are likely to be consistent with your objectives, financial situation and needs.

Apple, iPad and iPhone are trademarks of Apple Inc., registered in the US and other countries. AppStore is a service mark of Apple Inc.

The information or the products and services referred to on this website may be accessed worldwide, however is only intended for distribution to and use by recipients located in countries where such use does not constitute a violation of applicable legislation or regulations. Products and Services offered on this website is not intended for residents of the United States and Japan.

Please click here to view our full disclaimer.