Articles, Library comments - page 3

ATR Trailing Stop (Pine Script Port) : MQL5 port of a Pine Script ATR trailing-stop indicator: nLoss = ATR-multiple, the stop ratchets under price in an uptrend and over price in a downtrend, and flips (with a buy/sell arrow) when price closes through it. Includes a Python reference port and a

EMA Cross Demo EA with ATR Stops : A small demo Expert Advisor: EMA fast/slow cross entries (evaluated on closed bars only, no repainting), ATR-based stop-loss and take-profit, spread filter, and position handling that works on both hedging and netting accounts. Includes a Python reference

Session TWAP: time weighted average price from the cash open, with deviation bands : Time weighted average price of the running session, anchored at the cash open of Frankfurt, London, New York or Tokyo with automatic daylight saving. Every second counts the same, minutes without a tick carry the

PropSpread: time-weighted spread monitor with ATR context, alert and CSV log : Panel that samples the spread once per second and shows it in points and in the symbol's natural unit (pips on FX, index points on index CFDs), with rolling min/avg/median/max, a session statistic since server midnight

fair value gap/imbalance : Dynamic Fair Value Gap (FVG) is an MQL5 indicator for MetaTrader 4 that automatically detects market price imbalances. This indicator is perfectly suited for traders utilizing the Smart Money Concepts (SMC) strategy. Author: reza rahmad

Gold Position Size Calculator (XAUUSD) : Free risk-based position size calculator built specifically for Gold (XAUUSD). Enter your account balance, risk percentage, entry price and stop-loss price - the indicator calculates the exact lot size, risk amount, stop distance, risk/reward ratio and

Check out the new article: Building an Adaptive Fibonacci Volatility Band Indicator in MQL5 . We build an adaptive Fibonacci volatility band indicator in MQL5 that centers on a smoothed price (SMMA) and scales band width with a smoothed ATR. The article covers inputs, buffer mapping, ATR handling

Check out the new article: From Option Chain to Risk-Neutral Density: The Market's Own Probability Distribution . The article builds an MQL5 indicator that recovers the risk-neutral density from an option chain via the Breeden–Litzenberger identity. Quotes are inverted to implied volatilities, the

Unified Hull MA (4 Lines, Color-Coded, Ring Buffer) : Hull Moving Average indicator displaying four periods on a single chart, colour-coded by direction (green for rising, red for falling, grey for flat). Implemented with a ring buffer and incremental running-sum math, so memory and CPU use remain

Check out the new article: MQL5 Expert Advisor Builder (Part 1): A Simple Static Template . The article examines an example of a multipurpose trading robot template that is suitable both for creating your own strategies and as a codebase for freelance work. A key feature of the solution is bar-based

Check out the new article: Market Simulation: Unity Is Strength (III) . In this article, I will present our system for simulating market operations. Although everything is practically finished, there are still a few things to implement and a few changes to make. However, I have to admit that, after

Prop-Firm Equity Guard - daily and max drawdown protection (FTMO-style) : Account-level protection utility for prop-firm challenges: daily and max drawdown limits with a safety buffer. Closes all positions and raises a global halt flag other EAs can check. Author: Cristian Ciunae

News Filter for the Strategy Tester (DST-corrected calendar export) : A real economic-calendar news filter that also works in backtests. Export the events once with a script, then block new entries around news both live and in the Strategy Tester. Fixes the one-hour DST shift of historical calendar

Check out the new article: Developing a Multi-Currency Expert Advisor (Part 32): Secrets of the Optimization Project Creation Step (II) . The article discusses the parameters of the second stage of the automatic optimization pipeline for a multi-currency Expert Advisor. We analyze the criteria for

Previous Day highs and lows : Draws the previous day High, Low, and Close as horizontal reference lines on the chart for a configurable number of past days. Yesterday's levels extend into today as live support and resistance, with optional touch alerts. Author: 59848

Check out the new article: Building AI-Powered Trading Systems in MQL5 (Part 10): A Resolution-Independent Vector Icon System . We replace the embedded bitmap icons in our MQL5 canvas interface with a resolution-independent vector icon system. A small set of anti-aliased primitives (strokes, discs

Check out the new article: From Basic to Intermediate: Operator Overloading (IV) . In this article, we will take a first step toward showing how to implement operator overloading for the index operator and the assignment operator, while striving to offer a practical and interesting approach for

Check out the new article: Market Replay: Unity Is Strength (II) . Until now, the application being developed as part of this series of articles has focused exclusively on simulating the graphical part. However, to obtain a more complete system in which we can test the Expert Advisor within the

Check out the new article: Neural Networks in Trading: The Adaptive Graph Diffusion Model (SAGDFN) . In this article, we explore the architecture of SAGDFN — a modern framework capable of transforming the approach to processing spatiotemporal data. It preserves key information even in complex graphs

Liquidity Void Decay Oscillator. : A subwindow oscillator that flags thin-participation displacement bars as "liquidity voids" and scores 0–100 how quickly price re-fills each one, distinguishing fast-absorbed noise from levels still acting as real support or resistance. Author: Adedayo David

PropFirm Risk Guardian MT5 – Account-Wide Risk Protection EA : Account-wide MT5 risk protection EA for prop-firm and personal accounts. Monitors daily and overall drawdown, position losses, safety buffers, and automatically protects the account when configured limits are reached. Author: Rahul

Check out the new article: Three MACD Filters on US_TECH100: Five Years of Broker Data . This article tests three common filters on a standard MACD crossover for US_TECH100 H1 using five years of broker-native data. Filters are layered incrementally: regime, higher timeframe (HTF) alignment, and US

Safe Risk Manager EA - Daily Loss, Break-Even and Trailing Stop : Educational MT5 hedging-account trade panel with risk sizing, spread protection, a persistent daily-loss lock, break-even and trailing stops. Author: Reynard Carelse

Hurst Exponent Regime Switch Indicator : Estimates the rolling Hurst exponent of price via rescaled-range (R/S) analysis and plots it as a color-coded oscillator that flags whether the market is currently trending, mean-reverting, or moving like a random walk. Author: Adedayo David Gbadebo

EA Trend Follower : TREND Follower (Daily) is a lightweight, development-oriented Expert Advisor (EA) created as a base trading architecture for research, learning, experimentation, and further development. The EA is intentionally designed around a simple concept: follow the market direction using

New article New Article Publishing System at the MQL5.community is published: We present you a new article publishing system at the MQL5.community. In the new system, we have tried to make the whole process of article writing clear and comfortable by breaking it into several steps. At each step we

Check out the new article: How to Use Finite Differences for Price Forecasting . The article examines the practical application of finite differences in trading: types of differences, their relationship to price dynamics, and the binomial transform for noise filtering. The rules for encoding

Check out the new article: LLM-Based Trading Agent with Embedded Top Trader Philosophy . The article provides a critical analysis of an LLM strategy in which forecasting the direction is separated from trading decisions, and demonstrates why this leads to a disconnect between metrics and PnL. We

Check out the new article: MQL5 Wizard Techniques you should know (Part 23): CNNs . Convolutional Neural Networks are another machine learning algorithm that tend to specialize in decomposing multi-dimensioned data sets into key constituent parts. We look at how this is typically achieved and

Check out the new article: Developing a Reusable Dynamic Volatility Trailing Stop Engine in MQL5 . This article presents a modular, object-oriented volatility trailing stop engine for MQL5 packaged as a reusable include class, it calculates dynamic stop-loss levels using a True Range average filter