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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 Description (EN) NEXA Ichimoku Basic Trend PRO NEXA Ichimoku Basic Trend PRO is an automated trading system based on Ichimoku trend analysis combined with price structure conditions. The system is designed to identify market direction and execute trades only when predefined conditions are met. This Expert Advisor does not rely on a single indicator signal. Instead, it applies multiple filters to evaluate market conditions before entering a trade. 🔹 Key Features Trend detection using
NEXA Daily SR Master PRO — Product Description (English) 🔹 Description NEXA Daily SR Master PRO is an Expert Advisor designed to analyze market structure based on daily support and resistance levels and execute trades automatically when predefined conditions are met. The system focuses on key price reaction zones and applies a structured approach using multi-timeframe analysis to identify potential trading opportunities. 🔹 How It Works The Expert Advisor operates through the following process
NEXA Camarilla Stretch PRO – User Guide 1. Overview NEXA Camarilla Stretch PRO is an Expert Advisor designed for the MetaTrader 5 platform. The program analyzes price data and applies predefined rules to execute trades automatically based on market conditions. 2. Features The product includes the following functions: Automatic trade entry and exit Trade condition filtering Time-based trading control Risk management settings Partial close and position management All functions operate according to
NEXA Pivot Inner Range EA Product Overview NEXA Pivot Inner Range EA is an automated trading program designed to analyze short-term price movements within Pivot-based price ranges. The Expert Advisor operates on the MetaTrader 5 platform and combines Pivot levels, RSI, Momentum, ATR, and ADX indicators to evaluate market conditions. The strategy focuses on price fluctuations that occur within the range between the Pivot support (S1) and resistance (R1) levels. This program is not tied to any
NEXA GOLD Algorithmic Trading EA Product Overview NEXA GOLD Algorithmic Trading EA is an automated trading program designed for the MetaTrader 5 platform. The Expert Advisor analyzes price movements in the GOLD (XAUUSD) market and executes trades according to predefined algorithmic rules. The system automatically opens, manages, and closes positions based on market conditions and user-defined parameters. This product is a trading tool for MetaTrader and operates according to programmed trading
NEXA Pivot Scalper PRO – User Guide Overview NEXA Pivot Scalper PRO is an automated trading system designed for the MetaTrader 5 platform. The system analyzes price behavior around pivot levels and evaluates short-term market conditions using several technical indicators. Trades are opened automatically when multiple conditions align. The Expert Advisor is designed to operate on intraday market movements and focuses on structured entry conditions and predefined risk parameters. The product is
NEXA Trend Ride PRO — User Guide 1. Overview NEXA Trend Ride PRO is an automated trading program (Expert Advisor) designed for the MetaTrader 5 platform. The program analyzes market conditions using price movement and technical indicators to identify potential trend opportunities. When the defined conditions are met, the program can automatically open and manage trading positions. The Expert Advisor operates according to predefined parameters and risk management settings that can be configured
NEXA Pivot Rebound Basic 1. Overview NEXA Pivot Rebound Basic is an Expert Advisor designed to identify potential price reversals around daily pivot levels (S1 and R1). The system operates on the MetaTrader 5 platform and is optimized for the M15 timeframe. Daily pivot levels are calculated from the previous day’s high, low, and close. These levels are combined with RSI and Stochastic indicators to generate entry signals. This product is intended for automated trading research and execution. 2
NEXA Donchian Pro MetaTrader 5 Expert Advisor – User Guide 1. Product Overview NEXA Donchian Pro is an automated trading system based on the Donchian Channel breakout model combined with MACD direction filtering and ATR volatility normalization. The product is delivered as a compiled EX5 file for the MetaTrader 5 platform. The Expert Advisor is designed to detect breakout conditions in trending market environments and execute trades automatically based on closed-bar calculations. This product
NEXA Breakout Velocity NEXA Breakout Velocity is an automated trading system based on channel breakout logic combined with momentum (ROC), volume filtering, and ATR-based risk management. The system is designed to detect volatility expansion phases where price breaks beyond recent ranges with increasing speed and participation. All signals are calculated on closed bars only. Only one position per symbol is maintained at a time. Strategy Overview The system combines the following components
NEXA Channel Expansion 1. Product Overview NEXA Channel Expansion is an Expert Advisor designed to trade breakout movements during periods of expanding market volatility. The system detects channel width expansion and executes trades in the direction of confirmed breakouts. This product is delivered as a compiled EX5 file for MetaTrader 5. It does not use DLL calls, external licensing systems, WebRequest communication, or third-party integrations. 2. Strategy Logic The trading logic combines
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