MQL5 Programming Articles

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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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Example of Auto Optimized Take Profits and Indicator Parameters with SMA and EMA

Example of Auto Optimized Take Profits and Indicator Parameters with SMA and EMA

This article presents a sophisticated Expert Advisor for forex trading, combining machine learning with technical analysis. It focuses on trading Apple stock, featuring adaptive optimization, risk management, and multiple strategies. Backtesting shows promising results with high profitability but also significant drawdowns, indicating potential for further refinement.
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William Gann methods (Part I): Creating Gann Angles indicator

William Gann methods (Part I): Creating Gann Angles indicator

What is the essence of Gann Theory? How are Gann angles constructed? We will create Gann Angles indicator for MetaTrader 5.
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Integrating Discord with MetaTrader 5: Building a Trading Bot with Real-Time Notifications

Integrating Discord with MetaTrader 5: Building a Trading Bot with Real-Time Notifications

In this article, we will see how to integrate MetaTrader 5 and a discord server in order to receive trading notifications in real time from any location. We will see how to configure the platform and Discord to enable the delivery of alerts to Discord. We will also cover security issues which arise in connection with the use of WebRequests and webhooks for such alerting solutions.
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Neural networks made easy (Part 47): Continuous action space

Neural networks made easy (Part 47): Continuous action space

In this article, we expand the range of tasks of our agent. The training process will include some aspects of money and risk management, which are an integral part of any trading strategy.
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Price Action Analysis Toolkit Development (Part 26): Pin Bar, Engulfing Patterns and RSI Divergence (Multi-Pattern) Tool

Price Action Analysis Toolkit Development (Part 26): Pin Bar, Engulfing Patterns and RSI Divergence (Multi-Pattern) Tool

Aligned with our goal of developing practical price-action tools, this article explores the creation of an EA that detects pin bar and engulfing patterns, using RSI divergence as a confirmation trigger before generating any trading signals.
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Brain Storm Optimization algorithm (Part II): Multimodality

Brain Storm Optimization algorithm (Part II): Multimodality

In the second part of the article, we will move on to the practical implementation of the BSO algorithm, conduct tests on test functions and compare the efficiency of BSO with other optimization methods.
Interview with Berron Parker (ATC 2010)
Interview with Berron Parker (ATC 2010)

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 his EA is set up to work in a trend market, but can be weak in other market conditions. However, he is hopeful that his robot will show good results in this competition.
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MQL5 Wizard Techniques you should know (Part 17): Multicurrency Trading

MQL5 Wizard Techniques you should know (Part 17): Multicurrency Trading

Trading across multiple currencies is not available by default when an expert advisor is assembled via the wizard. We examine 2 possible hacks traders can make when looking to test their ideas off more than one symbol at a time.
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Gain An Edge Over Any Market (Part II): Forecasting Technical Indicators

Gain An Edge Over Any Market (Part II): Forecasting Technical Indicators

Did you know that we can gain more accuracy forecasting certain technical indicators than predicting the underlying price of a traded symbol? Join us to explore how to leverage this insight for better trading strategies.
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Self Optimizing Expert Advisor With MQL5 And Python (Part V): Deep Markov Models

Self Optimizing Expert Advisor With MQL5 And Python (Part V): Deep Markov Models

In this discussion, we will apply a simple Markov Chain on an RSI Indicator, to observe how price behaves after the indicator passes through key levels. We concluded that the strongest buy and sell signals on the NZDJPY pair are generated when the RSI is in the 11-20 range and 71-80 range, respectively. We will demonstrate how you can manipulate your data, to create optimal trading strategies that are learned directly from the data you have. Furthermore, we will demonstrate how to train a deep neural network to learn to use the transition matrix optimally.
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Category Theory in MQL5 (Part 18): Naturality Square

Category Theory in MQL5 (Part 18): Naturality Square

This article continues our series into category theory by introducing natural transformations, a key pillar within the subject. We look at the seemingly complex definition, then delve into examples and applications with this series’ ‘bread and butter’; volatility forecasting.
Interview with Valery Mazurenko (ATC 2011)
Interview with Valery Mazurenko (ATC 2011)

Interview with Valery Mazurenko (ATC 2011)

The task of writing an Expert Advisor trading on multiple currency pairs is complex both in terms of finding suitable strategies and from the technological side. But if the goal is set clear, nothing is impossible then. It was four times already that Vitaly Mazurenko (notused) submitted his multi-currency Expert Advisor. It seems, he has managed to find the right way this time.
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Trading with the MQL5 Economic Calendar (Part 1): Mastering the Functions of the MQL5 Economic Calendar

Trading with the MQL5 Economic Calendar (Part 1): Mastering the Functions of the MQL5 Economic Calendar

In this article, we explore how to use the MQL5 Economic Calendar for trading by first understanding its core functionalities. We then implement key functions of the Economic Calendar in MQL5 to extract relevant news data for trading decisions. Finally, we conclude by showcasing how to utilize this information to enhance trading strategies effectively.
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Neural networks made easy (Part 80): Graph Transformer Generative Adversarial Model (GTGAN)

Neural networks made easy (Part 80): Graph Transformer Generative Adversarial Model (GTGAN)

In this article, I will get acquainted with the GTGAN algorithm, which was introduced in January 2024 to solve complex problems of generation architectural layouts with graph constraints.
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MQL5 Wizard Techniques you should know (Part 42): ADX Oscillator

MQL5 Wizard Techniques you should know (Part 42): ADX Oscillator

The ADX is another relatively popular technical indicator used by some traders to gauge the strength of a prevalent trend. Acting as a combination of two other indicators, it presents as an oscillator whose patterns we explore in this article with the help of MQL5 wizard assembly and its support classes.
Interview with Igor Korepin (ATC 2011)
Interview with Igor Korepin (ATC 2011)

Interview with Igor Korepin (ATC 2011)

Appearance of the Expert Advisor cs2011 by Igor Korepin (Xupypr) at the very top of the Automated Trading Championship 2011 was really impressive - its balance was almost twice that of the EA featured on the second place. However, despite such a sound breakaway, the Expert Advisor could not stay long on the first line. Igor frankly said that he relied much on a lucky start of his trading robot in the competition. We'll see if luck helps this simple EA to take the lead in the ATC 2011 race again.
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Neural Networks in Trading: Using Language Models for Time Series Forecasting

Neural Networks in Trading: Using Language Models for Time Series Forecasting

We continue to study time series forecasting models. In this article, we get acquainted with a complex algorithm built on the use of a pre-trained language model.
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DoEasy. Controls (Part 17): Cropping invisible object parts, auxiliary arrow buttons WinForms objects

DoEasy. Controls (Part 17): Cropping invisible object parts, auxiliary arrow buttons WinForms objects

In this article, I will create the functionality for hiding object sections located beyond their containers. Besides, I will create auxiliary arrow button objects to be used as part of other WinForms objects.
Interview with Boris Odintsov (ATC 2010)
Interview with Boris Odintsov (ATC 2010)

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 Advisor as a favorable combination of circumstances. In this interview he tells about what is important in trading, and what market would be unfavorable for his EA.
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Quantization in machine learning (Part 1): Theory, sample code, analysis of implementation in CatBoost

Quantization in machine learning (Part 1): Theory, sample code, analysis of implementation in CatBoost

The article considers the theoretical application of quantization in the construction of tree models and showcases the implemented quantization methods in CatBoost. No complex mathematical equations are used.
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Neural networks made easy (Part 34): Fully Parameterized Quantile Function

Neural networks made easy (Part 34): Fully Parameterized Quantile Function

We continue studying distributed Q-learning algorithms. In previous articles, we have considered distributed and quantile Q-learning algorithms. In the first algorithm, we trained the probabilities of given ranges of values. In the second algorithm, we trained ranges with a given probability. In both of them, we used a priori knowledge of one distribution and trained another one. In this article, we will consider an algorithm which allows the model to train for both distributions.
Interview with Andrey Bobryashov (ATC 2011)
Interview with Andrey Bobryashov (ATC 2011)

Interview with Andrey Bobryashov (ATC 2011)

Since the first Automated Trading Championship we have seen plenty of trading robots in our TOP-10 created with the use of various methods. Excellent results were shown both by the Exper Advisors based on standard indicators, and complicated analytical complexes with weekly automatic optimization of their own parameters.
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DRAW_ARROW drawing type in multi-symbol multi-period indicators

DRAW_ARROW drawing type in multi-symbol multi-period indicators

In this article, we will look at drawing arrow multi-symbol multi-period indicators. We will also improve the class methods for correct display of arrows showing data from arrow indicators calculated on a symbol/period that does not correspond to the symbol/period of the current chart.
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Population optimization algorithms: Bat algorithm (BA)

Population optimization algorithms: Bat algorithm (BA)

In this article, I will consider the Bat Algorithm (BA), which shows good convergence on smooth functions.
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Monitoring trading with push notifications — example of a MetaTrader 5 service

Monitoring trading with push notifications — example of a MetaTrader 5 service

In this article, we will look at creating a service app for sending notifications to a smartphone about trading results. We will learn how to handle lists of Standard Library objects to organize a selection of objects by required properties.
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Neural Networks Made Easy (Part 93): Adaptive Forecasting in Frequency and Time Domains (Final Part)

Neural Networks Made Easy (Part 93): Adaptive Forecasting in Frequency and Time Domains (Final Part)

In this article, we continue the implementation of the approaches of the ATFNet model, which adaptively combines the results of 2 blocks (frequency and time) within time series forecasting.
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Neural Networks Made Easy (Part 92): Adaptive Forecasting in Frequency and Time Domains

Neural Networks Made Easy (Part 92): Adaptive Forecasting in Frequency and Time Domains

The authors of the FreDF method experimentally confirmed the advantage of combined forecasting in the frequency and time domains. However, the use of the weight hyperparameter is not optimal for non-stationary time series. In this article, we will get acquainted with the method of adaptive combination of forecasts in frequency and time domains.
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Data Science and ML (Part 33): Pandas Dataframe in MQL5, Data Collection for ML Usage made easier

Data Science and ML (Part 33): Pandas Dataframe in MQL5, Data Collection for ML Usage made easier

When working with machine learning models, it’s essential to ensure consistency in the data used for training, validation, and testing. In this article, we will create our own version of the Pandas library in MQL5 to ensure a unified approach for handling machine learning data, for ensuring the same data is applied inside and outside MQL5, where most of the training occurs.
Interview with Vitaly Antonov (ATC 2011)
Interview with Vitaly Antonov (ATC 2011)

Interview with Vitaly Antonov (ATC 2011)

It was only this summer that Vitaly Antonov (beast) has learned about the upcoming Automated Trading Championship and got to know MetaTrader 5 terminal. Time was running out, besides, Vitaly was a newcomer. So, he randomly chose GBPUSD currency pair to develop his trading system. And the choice turned out to be successful. It would have been impossible to use other symbols with the strategy.
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DoEasy. Controls (Part 22): SplitContainer. Changing the properties of the created object

DoEasy. Controls (Part 22): SplitContainer. Changing the properties of the created object

In the current article, I will implement the ability to change the properties and appearance of the newly created SplitContainer control.
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Manual Backtesting Made Easy: Building a Custom Toolkit for Strategy Tester in MQL5

Manual Backtesting Made Easy: Building a Custom Toolkit for Strategy Tester in MQL5

In this article, we design a custom MQL5 toolkit for easy manual backtesting in the Strategy Tester. We explain its design and implementation, focusing on interactive trade controls. We then show how to use it to test strategies effectively
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From Python to MQL5: A Journey into Quantum-Inspired Trading Systems

From Python to MQL5: A Journey into Quantum-Inspired Trading Systems

The article explores the development of a quantum-inspired trading system, transitioning from a Python prototype to an MQL5 implementation for real-world trading. The system uses quantum computing principles like superposition and entanglement to analyze market states, though it runs on classical computers using quantum simulators. Key features include a three-qubit system for analyzing eight market states simultaneously, 24-hour lookback periods, and seven technical indicators for market analysis. While the accuracy rates might seem modest, they provide a significant edge when combined with proper risk management strategies.
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Data Science and ML (Part 26): The Ultimate Battle in Time Series Forecasting — LSTM vs GRU Neural Networks

Data Science and ML (Part 26): The Ultimate Battle in Time Series Forecasting — LSTM vs GRU Neural Networks

In the previous article, we discussed a simple RNN which despite its inability to understand long-term dependencies in the data, was able to make a profitable strategy. In this article, we are discussing both the Long-Short Term Memory(LSTM) and the Gated Recurrent Unit(GRU). These two were introduced to overcome the shortcomings of a simple RNN and to outsmart it.
Interview with Antonio Morillas (ATC 2011)
Interview with Antonio Morillas (ATC 2011)

Interview with Antonio Morillas (ATC 2011)

Antonio Morillas from Spain (sallirom, by the way - it is reversed surname!) was first who doubled his starting balance from the beginning of the Championship and thus attracted our attention. His trading strategy is extremely risky. We decided to talk to Antonio about risk and luck as these are part and parcel of Automated Trading Championship.
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Building A Candlestick Trend Constraint Model (Part 5): Notification System (Part I)

Building A Candlestick Trend Constraint Model (Part 5): Notification System (Part I)

We will breakdown the main MQL5 code into specified code snippets to illustrate the integration of Telegram and WhatsApp for receiving signal notifications from the Trend Constraint indicator we are creating in this article series. This will help traders, both novices and experienced developers, grasp the concept easily. First, we will cover the setup of MetaTrader 5 for notifications and its significance to the user. This will help developers in advance to take notes to further apply in their systems.
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News Trading Made Easy (Part 6): Performing Trades (III)

News Trading Made Easy (Part 6): Performing Trades (III)

In this article news filtration for individual news events based on their IDs will be implemented. In addition, previous SQL queries will be improved to provide additional information or reduce the query's runtime. Furthermore, the code built in the previous articles will be made functional.
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From Novice to Expert: Auto-Geometric Analysis System

From Novice to Expert: Auto-Geometric Analysis System

Geometric patterns offer traders a concise way to interpret price action. Many analysts draw trend lines, rectangles, and other shapes by hand, and then base trading decisions on the formations they see. In this article, we explore an automated alternative: harnessing MQL5 to detect and analyze the most popular geometric patterns. We’ll break down the methodology, discuss implementation details, and highlight how automated pattern recognition can sharpen a trader's market insights.
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DoEasy. Controls (Part 27): Working on ProgressBar WinForms object

DoEasy. Controls (Part 27): Working on ProgressBar WinForms object

In this article, I will continue the development of the ProgressBar control. In particular, I will create the functionality for managing the progress bar and visual effects.
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Neural networks made easy (Part 68): Offline Preference-guided Policy Optimization

Neural networks made easy (Part 68): Offline Preference-guided Policy Optimization

Since the first articles devoted to reinforcement learning, we have in one way or another touched upon 2 problems: exploring the environment and determining the reward function. Recent articles have been devoted to the problem of exploration in offline learning. In this article, I would like to introduce you to an algorithm whose authors completely eliminated the reward function.
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Integrating Hidden Markov Models in MetaTrader 5

Integrating Hidden Markov Models in MetaTrader 5

In this article we demonstrate how Hidden Markov Models trained using Python can be integrated into MetaTrader 5 applications. Hidden Markov Models are a powerful statistical tool used for modeling time series data, where the system being modeled is characterized by unobservable (hidden) states. A fundamental premise of HMMs is that the probability of being in a given state at a particular time depends on the process's state at the previous time slot.