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MQL5 Programming Articles

Study the MQL5 language for programming trading strategies in numerous published articles mostly written by you - the community members. The articles are grouped into categories to help you quicker find answers to any questions related to programming: Integration, Tester, Trading Strategies, etc.

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Create Your Own Expert Advisor in MQL5 Wizard

The knowledge of programming languages is no longer a prerequisite for creating trading robots. Earlier lack of programming skills was an impassable obstacle to the implementation of one's own trading...

MQL5 Wizard: How to Create a Module of Trading Signals

The article discusses how to write your own class of trading signals with the implementation of signals on the crossing of the price and the moving average, and how to include it to the generator of...

MQL5 Wizard: Creating Expert Advisors without Programming

Do you want to try out a trading strategy while wasting no time for programming? In MQL5 Wizard you can simply select the type of trading signals, add modules of trailing positions and money...

Create your own Market Watch using the Standard Library Classes

The new MetaTrader 5 client terminal and the MQL5 Language provides new opportunities for presenting visual information to the trader. In this article, we propose a universal and extensible set of...

Andrey Voitenko: Programming errors cost me $15,000 (ATC 2010)

Andrey Voitenko is participating in the Automated Trading Championship for the first time, but his Expert Advisor is showing mature trading. For already several weeks Andrey's Expert Advisors has been...

Creating an Indicator with Multiple Indicator Buffers for Newbies

The complex codes consist of a set of simple codes. If you are familiar with them, it doesn't look so complicated. In this article, we will consider how to create an indicator with multiple indicator...

Tomasz Tauzowski:"All I can do is pray for a loss position" (ATC 2010)

Tomasz Tauzowski (ttauzo) is a long-standing member of the top ten on the Automated Trading Championship 2010. For the seventh week his Expert Advisor is between the fifth and the seventh places. And...

Simulink: a Guide for the Developers of Expert Advisors

I am not a professional programmer. And thus, the principle of "going from the simple to the complex" is of primary importance to me when I am working on trading system development. What exactly is...

Dimitar Manov: "I fear only extraordinary situations in the Championship" (ATC 2010)

In the recent review by Boris Odintsov the Expert Advisor of the Bulgarian Participant Dimitar Manov appeared among the most stable and reliable EAs. We decided to interview this developer and try to...

Designing and implementing new GUI widgets based on CChartObject class

After I wrote a previous article on semi-automatic Expert Advisor with GUI interface it turned out that it would be desirable to enhance interface with some new functionalities for more complex...

Technical Analysis: How Do We Analyze?

This article briefly describes the author's opinion on redrawing indicators, multi-timeframe indicators and displaying of quotes with Japanese candlesticks. The article contain no programming...

The Use of the MQL5 Standard Trade Class libraries in writing an Expert Advisor

This article explains how to use the major functionalities of the MQL5 Standard Library Trade Classes in writing Expert Advisors which implements position closing and modifying, pending order placing...

Alexander Anufrenko: "A danger foreseen is half avoided" (ATC 2010)

The risky development of Alexander Anufrenko (Anufrenko321) had been featured among the top three of the Championship for three weeks. Having suffered a catastrophic Stop Loss last week, his Expert...

Building interactive semi-automatic drag-and-drop Expert Advisor based on predefined risk and R/R ratio

Some traders execute all their trades automatically, and some mix automatic and manual trades based on the output of several indicators. Being a member of the latter group I needed an interactive tool...

Vladimir Tsyrulnik: The Essense of my program is improvisation! (ATC 2010)

Vladimir Tsyrulnik is the holder of one of the brightest highs of the current Championship. By the end of the third trading week Vladimir's Expert Advisor was on the sixth position. The IMEX algorithm...

Growing Neural Gas: Implementation in MQL5

The article shows an example of how to develop an MQL5-program implementing the adaptive algorithm of clustering called Growing neural gas (GNG). The article is intended for the users who have studied...

Interview with Boris Odintsov (ATC 2010)

Boris Odintsov is one of the most impressive participants of the Championship who managed to go beyond $100,000 on the third week of the competition. Boris explains the rapid rise of his expert...

Interview with Valery Mazurenko (ATC 2010)

By the end of the first trading week, Valery Mazurenrk (notused) with his multicurrency Expert Advisor ch2010 appeared on the top position. Having treated trading as a hobby, Valery is now trying to...

Guide to Testing and Optimizing of Expert Advisors in MQL5

This article explains the step by step process of identifying and resolving code errors as well as the steps in testing and optimizing of the Expert Advisor input parameters. You will learn how to use...

The "New Bar" Event Handler

MQL5 programming language is capable of solving problems on a brand new level. Even those tasks, that already have such solutions, thanks to object oriented programming can rise to a higher level. In...

Technical Analysis: What Do We Analyze?

This article tries to analyze several peculiarities of representation of quotes available in the MetaTrader client terminal. The article is general, it doesn't concern programming.

Interview with Berron Parker (ATC 2010)

During the first week of the Championship Berron's Expert Advisor has been on the top position. He now tells us about his experience of EA development and difficulties of moving to MQL5. Berron says...

Evaluation of Trade Systems - the Effectiveness of Entering, Exiting and Trades in General

There are a lot of measures that allow determining the effectiveness and profitability of a trade system. However, traders are always ready to put any system to a new crash test. The article tells how...

Analyzing Candlestick Patterns

Construction of Japanese candlestick chart and analysis of candlestick patterns constitute an amazing area of technical analysis. The advantage of candlesticks is that they represent data in such a...

Controlling the Slope of Balance Curve During Work of an Expert Advisor

Finding rules for a trade system and programming them in an Expert Advisor is a half of the job. Somehow, you need to correct the operation of the Expert Advisor as it accumulates the results of...

Adaptive Trading Systems and Their Use in the MetaTrader 5 Client Terminal

This article suggests a variant of an adaptive system that consists of many strategies, each of which performs its own "virtual" trade operations. Real trading is performed in accordance with the...

Several Ways of Finding a Trend in MQL5

Any trader would give a lot for opportunity to accurately detect a trend at any given time. Perhaps, this is the Holy Grail that everyone is looking for. In this article we will consider several ways...

Interview with Alexander Topchylo (ATC 2010)

Alexander Topchylo (Better) is the winner of the Automated Trading Championship 2007. Alexander is an expert in neural networks - his Expert Advisor based on a neural network was on top of best EAs of...

Using the TesterWithdrawal() Function for Modeling the Withdrawals of Profit

This article describes the usage of the TesterWithDrawal() function for estimating risks in trade systems which imply the withdrawing of a certain part of assets during their operation. In addition,...

How to Quickly Create an Expert Advisor for Automated Trading Championship 2010

In order to develop an expert to participate in Automated Trading Championship 2010, let's use a template of ready expert advisor. Even novice MQL5 programmer will be capable of this task, because for...

20 Trade Signals in MQL5

This article will teach you how to receive trade signals that are necessary for a trade system to work. The examples of forming 20 trade signals are given here as separate custom functions that can be...

The Prototype of Trade Robot

This article summarizes and systematizes the principles of creating algorithms and elements of trading systems. The article considers designing of expert algorithm. As an example the CExpertAdvisor...

Interview with Leonid Velichkovsky: "The Biggest Myth about Neural Networks is Super-Profitability" (ATC 2010)

The hero of our interview Leonid Velichkovski (LeoV) has already participated in Automated Trading Championships. In 2008, his multicurrency neural network was like a bright flash in the sky, earning...

How to Create Your Own Trailing Stop

The basic rule of trader - let profit to grow, cut off losses! This article considers one of the basic techniques, allowing to follow this rule - moving the protective stop level (Stop loss level)...

MetaTrader 5 and MATLAB Interaction

This article covers the details of interaction between MetaTrader 5 and MatLab mathematical package. It shows the mechanism of data conversion, the process of developing a universal library to...

Limitations and Verifications in Expert Advisors

Is it allowed to trade this symbol on Monday? Is there enough money to open position? How big is the loss if Stop Loss triggers? How to limit the number of pending orders? Was the trade operation...

Creating Multi-Colored Indicators in MQL5

In this article, we will consider how to create multi-colored indicators or convert the existing ones to multi-color. MQL5 allows to represent the information in the convenient form. Now it isn't...

Creating and Publishing of Trade Reports and SMS Notification

Traders don't always have ability and desire to seat at the trading terminal for hours. Especially, if trading system is more or less formalized and can automatically identify some of the market...

Transferring Indicators from MQL4 to MQL5

This article is dedicated to peculiarities of transferring price constructions written in MQL4 to MQL5. To make the process of transferring indicator calculations from MQL4 to MQL5 easier, the...

The Optimal Method for Calculation of Total Position Volume by Specified Magic Number

The problem of calculation of the total position volume of the specified symbol and magic number is considered in this article. The proposed method requests only the minimum necessary part of the...