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Accelerator Oscillator

Acceleration/Deceleration (AC) is introduced by Bill Williams; it measures acceleration and deceleration of the current driving force.
When the AC value of the current bar is greater than the previous bar value, the histogram bar is colored in green (and vice versa). According to Mr. Williams this indicator will change direction before any changes in the driving force, which will change its direction before the price.
The only thing that needs to be done to control the market and make decisions is to watch for changes in color. To save yourself serious reflections, you must remember: you can not buy with the help of Acceleration/Deceleration, when the current column is colored red, and you can not sell, when the current column is colored green.

Introduction to Forex

The purpose of this overview is to introduce the forex market to you. As with many markets there are many derivative of the central market such as futures, options and forwards. In these tutorials we will be discussing the main market sometimes referred to as the Spot or Cash market.

The word "FOREX" is derived from the words Foreign Exchange and is the largest financial market in the world. Unlike many markets the FX market is open 24 hours per day and has an estimated $3.2 Trillion in turnover every day.

This tremendous turnover is more than the combined turnover of the main worlds' stock markets on any given day. This tends to lead to a very liquid market and thus a desirable market to trade.

Unlike many other securities (any financial instrument that can be traded) the FX market does not have a fixed exchange. It is primarily traded through banks, brokers, dealers, financial institutions and private individuals.

Trades are executed through phone and increasingly through the Internet.

It is only in the last few years that the smaller investor has been able to gain access to this market. Previously the large amounts of deposits required precluded the smaller investors. With the advent of the Internet and growing competition it is now easily within the reach of most investors.

• Advantages Of Forex

• 24-hour trading, 5 days a week with non-stop access to global FOREX dealers.

• An enormous liquid market making it easy to trade most currencies.

• Volatile markets offering profit opportunities.

• Standard instruments for controlling risk exposure.

• The ability to profit in rising or falling markets.

• Leveraged trading with low margin requirements.

• Many options for zero commission trading.

• Easily accessible and attractive for the investors of different levels.

• Protect your revenues from foreign currency transactions by hedging against exposure to adverse rate movements.

• Trading Forex has much lower transaction costs than other investment products, a very important point for active traders.

• The market on which money are assets, have highest of all possible liquidities.

• It allows to avoid a problem of the instability, existing in futures and other share investments where during one time and for a determined price can be sold only the limited quantity of contracts.

• The FOREX market is so vast and has so many participants that no single entity, even a central bank, can control the market price for an extended period of time.

• Determination of the maximum loss by using stop loss.

• Trading using an easy & fast platform.

• All transactions are over the counter (OTC) that there is no specific location for the market.

• The Market affected only by the supply & demand.

• Real time charts.

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Volumes

Volume is a measure of supply and demand that is independent of price
Volume is usually light during the formation of the pattern and increases on a breakout from the pattern. For any pattern or trend line penetration, a breakout with increasing volume is more an indication that prices will continue in the direction of the breakout than a breakout on low volume.
Rising volume levels when price is falling after a major peak gives supporting evidence that there is an underlying weakness in the security & warns that falling prices may continue.
When price goes to a new high on increased volume, traders often compare volume with that which occurred during previous rallies in prices. If the current volume is less than the previous rally's volume, there is a potential for a price trend reversal.

Foriegn Exchange Market:

Is the largest financial market in the world that include the largest banks & financial institutions.

Nowadays Forex market has turnover of more than three trillions dollars a day, which is by order the greatest turnover on the world's financial markets where all the transactions achieved over the counter (OTC), that there is no specific place for trading.

Forex professional system trading allows you to operate through a global network of banks, corporations and individuals trading one currency for another. In fact, we, as reliable and professional Forex trader, offer you efficient Forex trading software included in every trading account.

Let's Start With Sigma Free Practic Account

• Get Started by downloading Sigma platform.
• Then Open Free Practic account.
• Use Sigma Indicators to learn more about movements of the chart.

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It was generated by John F. Ehlers. Relative Vigor Index (RVI) calculation is based on the idea that in a rising market the closing price is usually higher than the opening price, and on the bearish market the closing is usually below the opening price.
The basic signals of Relative Vigor Index (RVI) are:
1- Bullish divergence / bearish convergence - the main signal pointing to the weakness of the current trend.
2- A good moment to open a sell / buy position is the crossing of the RVI line by the signal line from above/below once the bullish divergence / bearish convergence has appeared on the chart.
3- In a flat market an exit from the overbought / oversold area is a signal to sell / buy.

Sigma is devoted to the protection of its valued traders’ investments, and has always been a strongly arguing in the favor of Forex industry EU regulation.

Conformity in fulfilling official requirements with the regulations set out into notice by EU regulatory institutions ensures that stringent quality control standards are being met and that your business with Sigma is honest, secured, and fair. These regulations require Sigma to maintain enough liquid capital to meet the needs of the amount required to cover all client deposits, potential shift back and forth in the firm’s currency positions and outstanding expenses, and generally operate under just and equitable principles of trade. Sigma not only placed under all relevant laws, rules, and regulations set out into notice by these agencies, but are also tested by three annual audits: two are performed by independent auditors, and one by its own internal audit committee. As an international and ban-European forex brokers, Sigma has always been concerned about complying with international laws and regulations. The company’s wide spread structure across countries borders puts an additional focus on multinational regulations, especially Cross-Atlantic laws. In the US, all Futures

Brokers are obligated to comply with the  CFTC and NFA    even though Sigma doesn’t offer any futures, but full complying with both regulative authorities specially on Anti Money Laundry and   and the financial Action Task Force Our Anti Money Laundry policies are fully compliant with the following international authorities: 

Sigma’s multinational structure secures our clients a strong fundament and safety. Our International legal teams are working side by side with the international regulative authorities to follow and set safer standards for the financial industry.

In addition, Sigma is complying with Swiss Federal Bank Commissionand The AIBW, the Association of Introducing Brokers Worldwide The Committee of European Securities Regulators (CESR)   http://www.cesr-eu.org/ 

In the USA, we support and comply with

In Canada        

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Average True Range

This indicator of volatility measures selling pressure and buying pressure. When the ATR rises there is more and more pressure and a strong volatility of the stock.
When the ATR decreases there is less and less pressure and a low volatility.
True range is the highest data in absolute value among:
(Today’s high - today's low)
(Today’s high - yesterday's close)
(Today’s low - yesterday's close)

The last two possibilities usually arise when the previous close is greater than the current high (signaling a potential gap down or limit move) or the previous close is lower than the current low (signaling a potential gap up or limit move).
To ensure positive numbers, absolute values were applied to differences.
True Range is the greatest of the following three values:
• Difference between the current maximum and minimum (high and low).
• Difference between the previous closing price and the current maximum.
• Difference between the previous closing price and the current minimum.

Practice Competition

Sigma Forex Ultimate Forex Monthly Champion

Interested clients who wish to take part in this competition shall send a request via email at

This e-mail address is being protected from spam bots, you need JavaScript enabled to view it Attached with the following information:

• Full name
• Phone number
• Current valid passport or government issued photo ID

It begins at the beginning of each month.

After recieving your request we will provide you with further details and with your Practice account login information which will be used in the trading contest.

Also you have to download Sigma Forex Platform to login with the account number and password after receiving them.

• Download Sigma Forex Platform

In each contest you will recieve $ 5'000 as balance with 100:1 as leverage

There will be 5 prizes awarded each contest for the participants that managed at least 30 Standard lots:   

For More Details about contest rules contact us at  

If at any time you need assistance please click on the Live Chat button on the right hand side and our customer support staff will help you through the process.