Chacha Ian Maroa
Chacha Ian Maroa
4.4 (7)
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1 year
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5
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14
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12
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Quantitative Analyst at
I’m a financial markets trader and programmer passionate about building and automating trading strategies. I specialize in MQL5, creating expert advisors, indicators, and signal copiers, and I’m expanding into AI and machine learning for algorithmic trading.
Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 10): Automating Smash Day Reversal Patterns
Larry Williams Market Secrets (Part 10): Automating Smash Day Reversal Patterns

We implement Larry Williams’ Smash Day reversal patterns in MQL5 by building a rule-based Expert Advisor with dynamic risk management, breakout confirmation logic, and one trade at a time execution. Readers can backtest, reproduce, and study parameter effects using the MetaTrader 5 Strategy Tester and the provided source.

Chacha Ian Maroa
Published article Custom Indicator Workshop (Part 1): Building the Supertrend Indicator in MQL5
Custom Indicator Workshop (Part 1): Building the Supertrend Indicator in MQL5

Build a non‑repainting Supertrend in MQL5 for MetaTrader 5 from first principles. We use an iATR handle and CopyBuffer for volatility, bind buffers with SetIndexBuffer, and configure plots (DRAWCOLORCANDLES plus two line bands) via PlotIndexSetInteger. The logic updates only on closed bars with EMPTY_VALUE to suppress inactive bands, exposing atrPeriod and atrMultiplier inputs. You get a clean, EA‑ready overlay with documented buffers for strategies and signals.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 9): Patterns to Profit
Larry Williams Market Secrets (Part 9): Patterns to Profit

An empirical study of Larry Williams' short-term trading patterns, showing how classic setups can be automated in MQL5, tested on real market data, and evaluated for consistency, profitability, and practical trading value.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 8): Combining Volatility, Structure and Time Filters
Larry Williams Market Secrets (Part 8): Combining Volatility, Structure and Time Filters

An in-depth walkthrough of building a Larry Williams inspired volatility breakout Expert Advisor in MQL5, combining swing structure, volatility-based entries, trade day of the week filtering, time filters, and flexible risk management, with a complete implementation and reproducible test setup.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 7): An Empirical Study of the Trade Day of the Week Concept
Larry Williams Market Secrets (Part 7): An Empirical Study of the Trade Day of the Week Concept

An empirical study of Larry Williams’ Trade Day of the Week concept, showing how time-based market bias can be measured, tested, and applied using MQL5. This article presents a practical framework for analyzing win rates and performance across trading days to improve short-term trading systems.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 6): Measuring Volatility Breakouts Using Market Swings
Larry Williams Market Secrets (Part 6): Measuring Volatility Breakouts Using Market Swings

This article demonstrates how to design and implement a Larry Williams volatility breakout Expert Advisor in MQL5, covering swing-range measurement, entry-level projection, risk-based position sizing, and backtesting on real market data.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 5): Automating the Volatility Breakout Strategy in MQL5
Larry Williams Market Secrets (Part 5): Automating the Volatility Breakout Strategy in MQL5

This article demonstrates how to automate Larry Williams’ volatility breakout strategy in MQL5 using a practical, step-by-step approach. You will learn how to calculate daily range expansions, derive buy and sell levels, manage risk with range-based stops and reward-based targets, and structure a professional Expert Advisor for MetaTrader 5. Designed for traders and developers looking to transform Larry Williams’ market concepts into a fully testable and deployable automated trading system.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 4): Automating Short-Term Swing Highs and Lows in MQL5
Larry Williams Market Secrets (Part 4): Automating Short-Term Swing Highs and Lows in MQL5

Master the automation of Larry Williams’ short-term swing patterns using MQL5. In this guide, we develop a fully configurable Expert Advisor (EA) that leverages non-random market structures. We’ll cover how to integrate robust risk management and flexible exit logic, providing a solid foundation for systematic strategy development and backtesting.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 3): Proving Non-Random Market Behavior with MQL5
Larry Williams Market Secrets (Part 3): Proving Non-Random Market Behavior with MQL5

Explore whether financial markets are truly random by recreating Larry Williams’ market behavior experiments using MQL5. This article demonstrates how simple price-action tests can reveal statistical market biases using a custom Expert Advisor.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 2): Automating a Market Structure Trading System
Larry Williams Market Secrets (Part 2): Automating a Market Structure Trading System

Learn how to automate Larry Williams market structure concepts in MQL5 by building a complete Expert Advisor that reads swing points, generates trade signals, manages risk, and applies a dynamic trailing stop strategy.

Chacha Ian Maroa
Published article Larry Williams Market Secrets (Part 1): Building a Swing Structure Indicator in MQL5
Larry Williams Market Secrets (Part 1): Building a Swing Structure Indicator in MQL5

A practical guide to building a Larry Williams–style market structure indicator in MQL5, covering buffer setup, swing-point detection, plot configuration, and how traders can apply the indicator in technical market analysis.

Chacha Ian Maroa
Published article Mastering Kagi Charts in MQL5 (Part 2): Implementing Automated Kagi-Based Trading
Mastering Kagi Charts in MQL5 (Part 2): Implementing Automated Kagi-Based Trading

Learn how to build a complete Kagi-based trading Expert Advisor in MQL5, from signal construction to order execution, visual markers, and a three-stage trailing stop. Includes full code, testing results, and a downloadable set file.

Chacha Ian Maroa
Published article Mastering Kagi Charts in MQL5 (Part I): Creating the Indicator
Mastering Kagi Charts in MQL5 (Part I): Creating the Indicator

Learn how to build a complete Kagi Chart engine in MQL5—constructing price reversals, generating dynamic line segments, and updating Kagi structures in real time. This first part teaches you how to render Kagi charts directly on MetaTrader 5, giving traders a clear view of trend shifts and market strength while preparing for automated Kagi-based trading logic in Part 2.

Chacha Ian Maroa
Published article Risk-Based Trade Placement EA with On-Chart UI (Part 2): Adding Interactivity and Logic
Risk-Based Trade Placement EA with On-Chart UI (Part 2): Adding Interactivity and Logic

Learn how to build an interactive MQL5 Expert Advisor with an on-chart control panel. Know how to compute risk-based lot sizes and place trades directly from the chart.

Chacha Ian Maroa
Published article Risk-Based Trade Placement EA with On-Chart UI (Part 1): Designing the User Interface
Risk-Based Trade Placement EA with On-Chart UI (Part 1): Designing the User Interface

Learn how to build a clean and professional on-chart control panel in MQL5 for a Risk-Based Trade Placement Expert Advisor. This step-by-step guide explains how to design a functional GUI that allows traders to input trade parameters, calculate lot size, and prepare for automated order placement.

Chacha Ian Maroa
Published article Building a Smart Trade Manager in MQL5: Automate Break-Even, Trailing Stop, and Partial Close
Building a Smart Trade Manager in MQL5: Automate Break-Even, Trailing Stop, and Partial Close

Learn how to build a Smart Trade Manager Expert Advisor in MQL5 that automates trade management with break-even, trailing stop, and partial close features. A practical, step-by-step guide for traders who want to save time and improve consistency through automation.

Chacha Ian Maroa
Published article Building a Professional Trading System with Heikin Ashi (Part 2): Developing an EA
Building a Professional Trading System with Heikin Ashi (Part 2): Developing an EA

This article explains how to develop a professional Heikin Ashi-based Expert Advisor (EA) in MQL5. You will learn how to set up input parameters, enumerations, indicators, global variables, and implement the core trading logic. You will also be able to run a backtest on gold to validate your work.

Chacha Ian Maroa
Published article Building a Professional Trading System with Heikin Ashi (Part 1): Developing a custom indicator
Building a Professional Trading System with Heikin Ashi (Part 1): Developing a custom indicator

This article is the first installment in a two-part series designed to impart practical skills and best practices for writing custom indicators in MQL5. Using Heikin Ashi as a working example, the article explores the theory behind Heikin Ashi charts, explains how Heikin Ashi candlesticks are calculated, and demonstrates their application in technical analysis. The centerpiece is a step-by-step guide to developing a fully functional Heikin Ashi indicator from scratch, with clear explanations to help readers understand what to code and why. This foundational knowledge sets the stage for Part Two, where we will build an expert advisor that trades based on Heikin Ashi logic.

Chacha Ian Maroa Published product

Zen Breakout Zen Breakout is a fully automated trading robot based on a clean breakout strategy with Heikin Ashi candle confirmation. It combines the power of fractals to detect swing points with Heikin Ashi momentum signals to ensure high-probability entries. The EA looks for price breaking above or below a recent swing point. If the breakout is confirmed by a strong Heikin Ashi candle (wickless bottom for bullish breakouts, wickless top for bearish breakouts), Zen Breakout enters instantly

Chacha Ian Maroa Published product

Tokyo Session Range Breakout EA – Smart Trading for Prop Firms & Retail Traders Looking for a disciplined breakout system that trades with precision, manages risk intelligently, and avoids overnight exposure? The Tokyo Session Range Breakout EA is built exactly for that. How It Works The EA automatically detects the Asian session range (00:00 – 08:59) UTC by mapping the highest and lowest price levels. A box is drawn to clearly mark this range on your chart. During the London session and

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