How to use Relative Strength Index in currency trading - article from

forexbulletproofForex or Foreign Exchange is the most heavily trades market due to its popularity, demand and availability. Most banks, governments and investment company trade Forex daily and are available 24 hours 6 days a week. Demand from import, export, exchange rates between country and interests point by government reserves.

Relative Strength Index - what is it?

This is a technical momentum indicator which measures the velocity and magnitude of price direction and movements. Relative Strength Index or RSI, uses a ratio and rate of the rise or fall of the price direction. It is developed by Welles Wilder in 1978.

RSI = 100 - 100 / (1 + RS )

RS = Average of gains / Average of losses.

Average of gains is the total of the difference from uptrend close price of previous bar and current bar divide by total no of gain bar. Average of losses is the total of the difference from the downtrend close price of previous bar and current bar divide by total no of loss bar. The resultant RSI value is between 0 and 100.

Overbought and Oversold

At level above 70 and below 30, is evidently show an overbought and oversold marker condition. This gives trader an opportunity to trade when the RSI touches and bounce of the 70 and 30 levels. Trades can be executed when the currency price show a dip or surge, inline with the RSI, combined show strong momentum that the price will go up or down depending on the current trend direction.

Similar at the 70 and 30 levels, by observing the currency price, you can predict early reversal trades when the RSI drop below 70 or above 30. By looking at the slope of the price chart and the slope of the RSI, you can trade falling or raising trends trades at 50 pips or more. Some trades can explicit up to 150 pips up or down trend.

Divergence high and low

Instead of double top or bottom, you can look for divergence at the currency price and RSI chart. At a higher high points from a divergence high point, you may find a lower high points at the RSI chart, this indicate a weakening trend and may breakout when the RSI fall and cross the 50 mark. You can double check the new trend by comparing with the currency prices trend and you will find potential trades to sell or buy.

Trending touch and go

If you find a currency to be trending and trends are consistently flowing with strong economic figures pushing it for long term, you can use RSI touch and go at the 50 level to execute buy or sell trade. With default setting of 14, you can see many touch and go at 50 level as the trend continues. Because trend up or down will still exhibits support and resistance with a certain degree of divergence which RSI chart can capture those up and down between 50 and 70/30 levels.

You can combine with simple moving average indicator to show the current timeframe trend and higher timeframe trend to show the major direction of the currency.


Your plain-English guide to currency trading

Forex markets can be one of the fastest and most volatile financial markets to trade. Money can be lost or made in a matter of seconds, and forex markets are always moving. So how do you keep up? This hands-on, friendly guide shows you how the forex market really works, what moves it, and how you can actively trade in it — without losing your head!
  • All the world's a stage — get an easy-to-follow introduction to the global forex market and understand its size, scope, and players
  • Show me the money — take a look at the major fundamental and economic drivers that influence currency values and get the know-how to interpret data and events like a pro
  • Prepare for battle — discover different types of trading styles and make a concrete strategy and game plan before you act on anything
  • Pull the trigger — establish a position in the market, manage the trade while it's open, and close out on the most advantageous terms
Open the book and find:
  • Currency trading conventions and tools
  • Key characteristics of successful traders
  • Trading pitfalls to avoid and risk management rules to live by
  • How major currencies typically trade
  • Why it's important to be organized and prepared
  • The 411 on buying and selling simultaneously
  • Tips for understanding rollovers and interest rates
Learn to:
  • Grasp currency quotes
  • Capitalize on the foreign exchange market
  • Manage risk and reward
  • Use the forces that drive currency movements
  • Identify key traits of individual currency pairs  

Editorial Reviews


"It offers practical guidance and savvy tips.." (Hedge Fund Manager, Thursday 23rd August) "…gives readers a step by step guide (to) getting acquainted with the forex market and to making those killer transactions." (Professional Pensions, Thursday 30th August 2007) --This text refers to an out of print or unavailable edition of this title.

From the Back Cover

Features forex market guidelines and sample trading plansThe fun and easy way® to get started in currency trading
Want to capitalize on the growing forex market? This nuts-and-bolts guide gives you a step-by-step action plan for understanding and trading the forex market. It offers practical guidance and savvy tips in everything from comprehending currency quotes to using leverage, trading with fundamentals, and navigating technical analysis.
  • Identify trading opportunities
  • Understand what drives the market
  • Choose a trading broker
  • Execute a successful trade
  • Minimize risk and maximize profit
  • Analyze currency charts
--This text refers to an out of print or unavailable edition of this title.

About the Author

Brian Dolan has worked for more than 20 years in the forex market as a currency trader and analyst. As the Chief Currency Strategist at, Brian oversees fundamental and technical analysis and is a frequent resource for the financial media on currency developments.

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