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My name is Park Sung Chan, a developer specializing in MetaTrader 5 algorithmic trading systems.
I design and research long-term, reliable automated trading models based on the structural characteristics and statistical patterns of financial markets.
Rather than building simple trading strategies, I focus on interpreting the market from multiple perspectives and developing high-level algorithmic frameworks that can adapt and evolve over time.
🔥 Introduction to the NEXA EA Project (Strategy Ecosystem)
The NEXA EA Project is an expandable strategy-development program built upon my research philosophy.
Its goal is not to create a single EA, but to establish a sustainable and stable automated trading ecosystem.
Each strategy is designed from various market perspectives—trend, swing, volume, volatility, and more—and developed through long-term backtesting and structural validation processes.
🔧 Expertise
• Structural market analysis based on Trend / Swing / Volatility / Breakout models
• Algorithm design focused on reproducibility with 3–10 year long-term backtests
• Drawdown reduction and risk-structure optimization
• Multi-timeframe system architecture with refined entry logic
• Technical support for users across 11 countries worldwide
In addition, I continuously conduct internal research projects to build more advanced automated trading frameworks, strengthening the reliability and structural integrity of future strategies.
(Core engines and internal technologies are not publicly disclosed.)
🎯 Development Philosophy
For me, an EA is not just a “trading script,” but a structural model that continually adapts to market changes.
I follow four essential principles:
✔ Stability
A robust framework that remains steady despite market fluctuations.
✔ Clarity
Clear, intuitive, and elegant algorithmic design.
✔ Consistency
Performance that can be reproduced and maintained over long periods.
✔ Evolution
Continuous research and improvement to evolve the strategy.
This philosophy is the foundation of the entire NEXA EA lineup, where every system is designed with a focus on long-term survivability rather than short-term results.
🌍 NEXA EA — Long-Term Strategy Ecosystem
NEXA EA is a long-term algorithmic ecosystem that grows and improves over time.
Each EA functions as an independent strategy, while simultaneously forming part of a broader portfolio structure—providing users with a stable and diversified automated trading environment.
🤝 Commitment to Users
• Clear and transparent explanation of all strategy logic
• Systems designed to perform reliably under diverse market conditions
• Continuous updates and trustworthy technical support
I am committed to ensuring that your automated trading experience becomes more stable, reliable, and consistent.
Thank you.
Product Overview NEXA PriceChannel Momentum is an automated trading Expert Advisor designed to analyze price channel breakouts combined with direction-aligned momentum conditions. The system evaluates market structure, momentum strength, and volatility conditions to determine when trading activity is permitted. This product does not guarantee profits or imply any specific trading outcome. It is provided solely as a trading automation tool based on predefined technical rules. Product Format and
NEXA Donchian Break 1. Product Overview NEXA Donchian Break is an automated trading Expert Advisor designed to identify price breakout zones based on the Donchian Channel, and to execute trades only when additional technical conditions are met. This product is distributed free of charge for learning and research purposes . It is designed to help users understand how breakout logic, trend filters, and stop-loss / take-profit structures interact through parameter configuration. This product does
NEXA BB Adaptive Revert MetaTrader 5 Expert Advisor (EX5) 1. Product Overview NEXA BB Adaptive Revert is an automated trading Expert Advisor designed to identify mean reversion opportunities after excessive price expansion. The system combines adaptive moving averages and volatility-based filters to avoid strong trend expansion phases and operate only during normalized market conditions where price behavior tends to revert toward its average range. This product is provided as a compiled EX5 file
NEXA Bb Zone Recovery 1. Product Overview NEXA Bb Zone Recovery is a MetaTrader 5 Expert Advisor based on a mean reversion concept using Bollinger Bands. The system is designed to identify situations where price temporarily expands beyond its normal volatility range and then returns toward the central area. The Expert Advisor operates using objective, rule-based conditions and evaluates signals only on closed candles. It is not limited to a specific symbol or timeframe and adapts to broker
NEXA Bb Trend Snapback Expert Advisor User Guide 1. Product Overview NEXA Bb Trend Snapback is an automated trading Expert Advisor designed for the MetaTrader 5 platform. It applies a Bollinger Bands–based snapback (mean reversion) structure to execute sell-only trades under predefined market conditions. The Expert Advisor operates only during permitted trading times and avoids unfavorable market environments using multiple built-in filters. The product is distributed exclusively as a compiled
NEXA BB Keltner Squeeze Expert Advisor for MetaTrader 5 I. Product Overview NEXA BB Keltner Squeeze is an automated trading Expert Advisor designed for the MetaTrader 5 platform. The system evaluates market conditions using the relationship between Bollinger Bands and Keltner Channels in order to identify volatility expansion phases. The Expert Advisor operates on the H1 timeframe and executes trades only when predefined technical conditions are met on closed candles . This product is intended
NEXA Bb Counter Trend User Manual (For MQL5 Market) 1. Product Overview NEXA Bb Counter Trend is an automated trading Expert Advisor designed to detect short-term mean reversion opportunities after price overextension, using a combination of Bollinger Bands, Stochastic Oscillator, and daily Pivot Levels. The system is designed to operate on the M5 timeframe. All trading decisions are based exclusively on closed (fully formed) candles , and no repainting logic is used. This Expert Advisor
NEXA Bb Volatility Trap Expert Advisor for MetaTrader 5 1. Overview NEXA Bb Volatility Trap is an automated trading Expert Advisor designed to detect changes in market volatility based on Bollinger Band Width contraction and expansion. The system focuses on identifying price expansion movements that occur after periods of low volatility. All trading decisions are made using closed candle data only . This Expert Advisor is an automated trading tool, and trading always involves the risk of loss
NEXA Logistic Regression EA (Expert Advisor) 1. Product Overview NEXA Logistic Regression EA is an automated trading program designed to operate on the M15 timeframe . The Expert Advisor combines an EMA200 direction filter with a price-based Logistic Regression calculation to determine trading direction. All calculations are performed strictly on closed bars , ensuring stable behavior without repainting or real-time recalculation effects. This product is intended for users who prefer rule-based
Nexa BB Revert Expert Advisor for MetaTrader 5 1. Product Overview Nexa BB Revert is an Expert Advisor designed around a Bollinger Bands–based mean reversion concept . It analyzes potential short-term price retracements after periods of excessive price expansion. The system is designed to operate on the M15 timeframe and evaluates trade conditions using a combination of Bollinger Bands, RSI, CCI, and ATR indicators. The Expert Advisor works with a single symbol and a single position per magic
NEXA Multi MA Swing Master Multi-EMA Pre-Stack Strategy for Early GOLD (XAUUSD) Trend Capture 📌 Product Overview NEXA Multi MA Swing Master is a swing trading Expert Advisor designed to capture early-stage trends in GOLD (XAUUSD) using a multi-EMA pre-stack structure combined with momentum and volatility filters. This EA does not trade in all market conditions. It selectively enters trades only when trend structure, momentum ignition, and volatility conditions align . 📊 Core Strategy Features
📘 NEXA Dynamic Swing English User Manual 1. Overview NEXA Dynamic Swing is an advanced swing trading Expert Advisor designed specifically for GOLD (XAUUSD) . It combines an Adaptive Moving Average (AMA) with RSI, Stochastic, and OBV confirmation to trade only high-quality market conditions, avoiding noise and low-probability setups. This EA focuses on: Quality over quantity Controlled drawdown Long-term account stability 2. Recommended Trading Environment Symbol : GOLD (XAUUSD) Trend Timeframe
📘 NEXA Swing Zone Trader Official User Manual (English) 1. Overview NEXA Swing Zone Trader is a low-frequency, high-precision swing trading Expert Advisor designed to trade only when clear trend, momentum, and market structure align. Instead of trading frequently, this EA focuses on quality over quantity , aiming to capture major swing movements in the GOLD (XAUUSD) market with controlled risk and high stability. 2. Core Strategy Logic ✅ Trend Zone Detection EMA (Period 150) on H1 timeframe
📘 NEXA EA 005 – Momentum Trend Catch GOLD Dedicated Momentum Trend Trading EA Official User Manual (English Version) 1️⃣ Overview NEXA EA 005 – Momentum Trend Catch is a low-frequency, high risk-reward (RR) momentum-based trend following Expert Advisor designed exclusively for GOLD (XAUUSD) . This EA does not aim for scalping or high-frequency trading. Instead, it enters trades only when a higher-timeframe trend and a lower-timeframe momentum breakout align on a confirmed (closed) candle
📘 NEXA ADX-EMA Trend Ride GOLD-Only Micro Trend Following Expert Advisor Official User Manual (English) 1️⃣ Overview NEXA ADX-EMA Trend Ride is a fully automated trading system designed exclusively for GOLD (XAUUSD) . Unlike traditional higher-timeframe trend systems, this EA focuses on micro-trend acceleration that occurs inside an already established trend . 📌 Core Concept Small controlled losses + rare but powerful trend expansion gains (Fat-Tail Capture) 2️⃣ Timeframe Structure (IMPORTANT)
NEXA Gold Pullback System v2.0 H1 Trend + M15 Pullback Based GOLD Swing Trading EA Official User Manual (Final Version) 1. Overview NEXA Gold Pullback System v2.0 is a swing trading Expert Advisor designed exclusively for GOLD (XAUUSD). The EA analyzes the medium-to-long-term trend on the H1 timeframe and executes trades on the M15 timeframe by identifying pullback structures that frequently appear in the GOLD market. Instead of relying on a single indicator signal, this system is built on a
📘 NEXA Trend Swing Pro v3 User Manual – English Version (Final Edition) EMA Trend + RSI + Momentum + Volume Filter + Multi-Score System Swing Trading EA 📌 1. EA Overview NEXA Trend Swing Pro v3 is a trend-following swing trading algorithm designed for GOLD (XAUUSD) , utilizing an H1 trend filter combined with an M30 entry trigger . This strategy is not a simple EMA crossover algorithm. It integrates five advanced filters : Trend strength (EMA distance) RSI structure Momentum direction Volume
✅ Live Forward Performance (Myfxbook – Demo Verified) Myfxbook: / portfolio / nexagoldai / 11833106 This system is currently running in verified forward testing. Real account will be connected after capital scaling. ---------------------------------------- 📘 NEXA Trend EMA RSI Swing — Product Description (English Version) 📌 Overview NEXA Trend EMA RSI Swing is an automated trading system designed for trend-following and pullback swing entries . The EA analyzes trend direction on the H1
🇺🇸 English Version — Premium EA Product Description NEXA Gold Macro Strategy02 EA Automated GOLD Trading System based on M15 + M5 with 1:3 Risk/Reward (Macro Filter + Wave Management Included) 📌 1. EA Overview The NEXA Gold Macro Strategy02 EA is a professional trend-based expert advisor designed specifically for GOLD (XAUUSD) automated trading. The system determines overall trend direction using M15 , and executes highly precise entries using M5 , while applying a global market sentiment