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Create and Test Forex Strategies

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Release Notes

Forex Strategy Builder Professional v3.8.7. EA Code v48

Hello Traders!

Forex Strategy Builder Professional v3.8.7 is released. It comes with updated Expert Advisors MQL code v48.

Major changes

  • Replaced the stopped Google currency conversion service with own powered by Expert Advisor Studio. Now FSB Pro updates the Account Exchange Rates properly. You may update the current rates from Control Panel → Account.

Update Account Exchange Rate

  • Fixed the William's Percent Range indicator. It prevent crashes in rare cases when there are consecutive equal bars.
  • Prevented unwanted positive signals for indicators that sets entry price in case when the price is set to 0.
  • Fixed logic rule description of Heiken Ash.

Additional changes

  • Updated the Code Signing Certificate of FSB Pro. It is possible some license codes issued in the period 2014-2015 to be wrongly shown as not valid. If you have such case, please contact us.
  • Added “MS VC++ 2010 x64” library to the installation package. MS VC++ is a necessary requirement for the FSB-MT4 bridge. You may install it, if the Bridge doesn't work.

Expert Advisors MQL Code Updated

Hello Traders,

We released a new version of the MQL code, now version 47. The changes are only in the MT5 code.

The update covers a problem in MT5 - inability to set a proper Order Filling Type. We found out there is a bug either in MT5 or in some brokers settings, which make it impossible to get the correct filling type from the MT platform. Fortunately, we found a workaround that works for the problematic brokers.

We hope our solution will work even if MetaQuotes fix that behavior.

If your experts work fine, you don't need to re-export them.

Your MQL code will be updated automatically after restarting FSB Pro.

Please report any problems in the forum and we will find a solution.

Trade Safe, Miroslav Popov CEO Forex Software Ltd.

Forex Strategy Builder Professional v3.8.6. EA Code v46

Hello Traders,

Forex Strategy Builder Professional v3.8.6 is uploaded. There are two fixes in this release:

  • Fixed a bug in the Cumulative Sum indicator with calculating the first bar.
  • Removed minimum profit per day from the default settings of the Acceptance Criteria.

The Expert Advisors code is updated to v46.

There are two indicators fixed.

  • Cumulative Sum indicator - fixed the calculating of the first bar.
  • Rate of Change indicator - fixed Moving Average.

If you use some of these indicators, please re-export the corresponding expert advisors.

Best regards,
Miroslav Popov

Forex Strategy Builder Professional v3.8.4. EA Code v44

Hello Traders,

Forex Strategy Builder Professional v3.8.4 is released. This version fixes two issues:

  1. Account exchange rate - FSB Pro correctly updates the Account exchange rates for all currency pairs from a cloud based service.
  2. Week Closing 2 - The Week Closing 2 indicator works on all time frames.

You can update the Account exchange rates from the Control PanelAccount page.

Account Exchange Rate

Forex Strategy Builder Professional v3.8.2

Hello Traders,

Forex Strategy Builder Professional v3.8.2 is published. It comes with a new statistic metric - Backtest quality %.

The Backtest quality measures what is the percentage of the correctly calculated bars. The formula is:

BacktestQuality = 100 * (totalBars - strategyFirstBar - ambiguousBars) / (totalBars - strategyFirstBar)

The higher the number is, the better is the backtest precision. FSB Pro marks the stats in red when it is lower than 100%.

 Backtest Quality

FSB Pro v 3.8.2 is available for autoupdate. Because this update does not concern the strategy behavior you don't need to re-export your Expert Advisors.

Trade Safe!

Expert Advisor Code v43 - Fixed Oscillator of MACD

Hello Traders,

We released an update to the FSB Pro Expert Advisor code v3. It fixes a bug in the “Oscillator of MACD” indicator.

If you have expert advisors that use the “Oscillator of MACD” indicator, please reexport your expert advisor.

Expert Advisor Code v42 - Detect Friday Close Time

Dear traders,

I'm proud to announce a new release of the Expert Advisors source code used by FSB Pro.

The new code solves a longtime problem - automatically detection of the end of the Friday trading session. This is important in order to make the Day Closing and the Week Closing indicators working properly.

Friday Close

You see on the above screenshot that the expert closes the position at 23:59 on Tuesday and at 21:59 on Friday.

These indicators doesn't replace the “Day Closing 2” and “Week Closing 2” indicators where you can set different closing times.

The v42 code release fixes a bug that may lead to “requote” errors in MetaTrader 5.

You will receive the update when you start Forex Strategy Builder Professional.

Please test carefully your experts and report all issues you may encounter.

Trade Safe!

Forex Strategy Builder Professional V3.8.1

Dear Traders,

Forex Strategy Builder v3.8.1 is released.

This version fixes several bugs:

  • Fixed the Data Source name in the file when the file is renamed by the user, which made the program unable to load the data files;
  • Preventing the possibility of saving strategies without name. This was causing crashes;
  • Fixed the ATR Stop indicator’s Multiplier data type from “int” to “double”;
  • Fixed crashes of Monte Carlo and Multi Market when drawing the balance charts.

The Expert Advisors code is updated to v41. It includes indicator fixes and code cleanup:

  • Fixed the ATR Stop indicator’s Multiplier data type from “int” to “double”;
  • Fixed wrong “first bar” of ATR Stop and Average True Range indicators;

You will receive this update automatically. FSB Pro will ask you for a restart when the update patch is downloaded. You can also download the full installer from our Download page and to install it over your old installation.

The update doesn’t require re-export of your current Expert Advisors.

Please report all bugs and problems.

Trade Safe!

Forex Strategy Builder Professional V3.8

Dear traders,

We are proud to announce the release of Forex Strategy Builder Professional V3.8. This release fixes some noted issues and adds new features requested by our users:

New features:

  • Re-import expert advisor to FSB Pro. Now is possible to re-import back expert advisor created with FSB Pro. It is very simple to do it, just drag and drop your EA on FSB Pro and it will recover the strategy used for creating this expert. You can also do it also from the Strategy menu.

Import an Expert Advisor back.

  • Added Maximum equity drawdown percent sorting and filtering criteria to the Collection page. Now you can filter out the strategy collection using that criteria. It can be also used as a search method for the Generator.

Max Equity Drawdown criteria.

  • Expert Advisors automatically recognize the order filling methods for your MetaTrader 5 broker. The experts correctly set IOC or FOK filling methods.

Fixed issues:

  • Fixed indicators’ first bar for almost all C# and MQL standard indicators. Now the default program sets the first bar for the strategy backtest equal to the bars required from the particular indicator + 1 if the indicator uses “Use previous bar value” option + 2 additional bars. That correction guarantees the proper work of strategies sand experts for all logical rules.
  • Fixed a bug in the EA code when the expert trades higher amount when it bases the trading size on the account percent.
  • Fixed an issue in the Collection page when the program changes the selected collection when the user removes a strategy.


FSB Pro still do not support MetaTrader 5 Hedging accounts. We need more testing in order to provide this feature. We will try to provide support for hedging accounts as soon as we can.

Please test your experts carefully on a demo account first before starting a real trading. We do our best to provide the most reliable forex software in the industry but bugs happen. Please report all issue in the support forum.

Trade Safe!

Binary Options Tester Updated

Hello Traders,

The Binary Options Tester is updated. Reload the application with Ctrl + F5 to use the latest version.


  • Trading expert code updated:
    • Added an “Expiry” input parameter. Set the option expiry in minutes.
    • Order Comment Format is exposed as an input parameter.
    • Fixed opening a new position when the current option has to expire now but it is not expired yet. This fix allows you to trade at consecutive bars.

Expert Advsior Input

  • Signals expert updated:
    • prints the stats info at the upper left corner of the chart when MetaTrader backtetsing finishes.
    • fixed the update of the info labels at the chart.
  • Indicators updated:
    • Bollinger Bands and Envelopes - the Generator doesn't use “The bar opens below Upper Band” and “The bar opens above Lower Band” rules. This is done because these rules give ambiguous signals when the price is between the bands.
    • Added “Candle Color” indicator,
    • Added “Moving Average Crossover” indicator
    • Fixed chart lines of Stochastic indicator.

Please report any problems.

Trade Safe!