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CFDs are complex instruments. 72% of retail client accounts lose money when trading CFDs, with this investment provider. You can lose your money rapidly due to leverage. Please ensure you understand how this product works and whether you can afford to take the high risk of losing money. CFDs are complex instruments. 72% of retail client accounts lose money when trading CFDs, with this investment provider. You can lose your money rapidly due to leverage. Please ensure you understand how this product works and whether you can afford to take the high risk of losing money.

RSI definition

RSI has a particular significance in relation to IG's platform. Here, we define RSI in general investing and explain what it means to you when trading with IG.

RSI stands for the relative strength index. It is a key tool used in technical analysis, assessing the momentum of assets to gauge whether they are in overbought or oversold territory.

To calculate RSI, follow this equation:

RSI = 100 – 100/(1+(average up closes/average down closes))

The RSI calculation gives a figure between 0-100. Most analysts believe that an asset at around the 70 level is in overbought territory and may be in for a correction, while an asset at or near 30 is oversold and may be in for a rally.

RSI example calculation

Let’s say that over the past month, Amazon has finished up an average of 5 points and down an average of 10. Divide 5/10 to make 0.5, then add one to make 1.5. Divide 100 by that number to make 66.66, then minus that from 100.

In this example, the current RSI of Amazon is 33.34.

With IG

RSI is one of the technical indicators available on our charts. To see RSI, click the ‘technical’ tab on the chart and scroll across to RSI.

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Questions about opening an account: +44 (20) 7633 5430 or email: sales.en@ig.com

Existing client questions:
+44 (20) 7633 5431 or email: helpdesk.en@ig.com

We’re here 24 hours a day, except from 6am to 4pm on Saturday (UTC+8).

The risks of loss from investing in CFDs can be substantial and the value of your investments may fluctuate. 72% of retail client accounts lose money when trading CFDs, with this investment provider. CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. You should consider whether you understand how this product works, and whether you can afford to take the high risk of losing your money.

CFD Accounts provided by IG International Limited. IG International Limited is licensed to conduct investment business and digital asset business by the Bermuda Monetary Authority.

IG provides an execution-only service. The information in this site does not contain (and should not be construed as containing) investment advice or an investment recommendation, or an offer of or solicitation for transaction in any financial instrument. IG accepts no responsibility for any use that may be made of these comments and for any consequences that result.

The information on this site is not directed at residents of the United States and is not intended for distribution to, or use by, any person in any country or jurisdiction where such distribution or use would be contrary to local law or regulation.

IG International Limited is part of the IG Group and its ultimate parent company is IG Group Holdings Plc. IG International Limited receives services from other members of the IG Group including IG Markets Limited.

RSI definition

RSI example calculation

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