Primer Dax

Scalping bot for the gold/dollar pair (XAU/USD) — a powerful and versatile solution for traders, designed to deliver maximum efficiency in a dynamic market. This bot is specifically engineered for scalping: it analyzes price changes and places trades even before significant market movements begin. This allows it to secure advantageous positions early and capitalize on even the smallest market fluctuations. Key Features: Flexibility: Adapts to any market conditions and suits your trading strategy

Ilan for MetaTrader 5 Due to using the virtual trades, trading in both directions (buy and sell) simultaneously became possible. This allows users to adapt the popular strategy for the net accounting of positions applied by MetaTrader 5.  Expert Advisor Settings The Expert Advisor setup is simple. However, all the important settings of the strategy are available for adjusting. Available tools: Unique  MagicNumber  for identification of trades; Trade direction option ( Trade direction ): buy onl

Classic Lock is a trading system that combines several different algorithms: both for opening a transaction and for its support. The system uses averaging, hedging, and in its essence, is a breakout strategy that trades with the trend. The strategy can trade on almost any instrument: gold, oil, currency pairs, etc. Good for trading in volatile markets. Features: •    The Expert Advisor can be attached to ANY TIMEFRAME, since the settings already contain the trading parameter for the required tim

| Fully-automated Smart Money Concept (ICT) inspired trading solution with multi-strategy capabilities | Built by a grid trader >> for grid traders.  This is MT5 version, click  here  for  Blue CARA MT4  (settings and logics are same in both versions)     Real monitoring signal  -->  Cara Gold Intro Blue CARA EA   ('CARA') - short for  C omprehensive  A lgorithmic   R esponsive   A dvisor is a next-gen  multi-currency    multi-timeframe  EA base on the widely known (and perhaps the most popul

Introducing the SuperTrend Strategy Multicurrency EA MT5, a cutting-edge trading tool designed exclusively for MetaTrader 5. This expert advisor harnesses the power of the Supertrend Indicator to automate trading across multiple currency pairs, catering to both novice and experienced traders looking to maximize their market potential. With its sophisticated trading strategy that includes advanced signal logic, this EA stands out by offering features such as grid recovery, hedging options, and co

Green Hawk  is a professional scalping expert. The strategy is based on smart scalping algorithms which trades in certain periods of the market. The system does not use risky strategies such as grid or martingale. Trading is done based on the return of the price in short periods. All trades are closed within hours. I will increase the price in the near future. Next Price: $700 The final price will be $2000. Selling only through the mql5 site MT4 Version  can be found here FEATURES Support thro

US30 Pre-Market Breakout EA The US30_PreMarket_Breakout_EA is a high-performance algorithmic trading system designed specifically for the US30 (Dow Jones Industrial Average) index. This Expert Advisor utilizes a pre-market breakout strategy to capture early momentum moves with precision. It is built for efficiency, incorporating dynamic lot sizing, trailing stops, break-even triggers, and time-based exits to maximize profitability while controlling risk. Key Trading Features Pre-Market Breakout

Aurus AI : Multi-AI Architecture Aurus AI Core is more than just a trading advisor; it's a next-generation intelligent ecosystem based on the principle of multi-layered artificial intelligence consensus. The system consists of four specialized AI modules, each responsible for a separate stage of trade entry signal verification. Four-layer filter system The advisor opens a trade only when all four independent modules give an "APPROVED" signal: Market Sense Layer : Evaluates overall market volati

Waka EA - Smart Grid Trading System This EA opens buy/sell orders based on Moving Average trends, candlestick patterns, and pivot points analysis. When market moves against positions, EA intelligently manages multiple orders using dynamic lot sizing and smart close algorithms until achieving positive profit, then closes all orders to start a new cycle. Key Features: Adaptive grid trading with dynamic spacing Smart order management with chain magic numbers Trailing stop and partial profit taking

The EA identifies divergences in two correlated currency pairs and trades in the direction where they converge back. Working timeframe: M30 Input parameters MagicNumber - identification number for the EA. OrdersComment - comment to order, automatic if an empty value is set. Lots - lot size. DepoPer001Lot - automatic lot calculation (specify the balance per 0.01 lot) (if 0, the value from 'Lots' parameter is used). TimeFrame - working timeframe. Symbol #2 - correlated currency. Symbol #2 reverse

The operation of this Expert Advisor is primarily designed to eliminate unprofitable positions according to Martingale with recalculation of the lot depending on the market situation. The EA uses Moving Averages with different periods to determine the trend strength and the moment for opening a deal, as well as RSI to avoid opening deals at the peak of a trend. The lot calculation is performed automatically depending on the current deposit. The deals are closed at different values depending on t

Ilanis is an Expert Advisor for stock trading, it can be used for trading on Forex and other markets, including commodities, metals and index markets. To determine the market entry, the EA uses the modern and ultra-light adaptive indicator FourAverage. Principle of position maintaining is similar to that of the popular Forex robot Ilan, using averaging. But unlike Ilan, Ilanis uses an accurate entry into the market. The robot pays a lot of attention to position control, if the price goes in the

37$ for 3 month TRY THIS  279$ for lifetime CONTACT ME !! for    Profitable Preset ORION – Constellation Trading Engine Multi-currency grid EA that distributes positions across correlated symbols instead of stacking on one pair. Three-Regime Signal Engine Constellation Grid Profit Drain ️ Risk Managemen Cross-Symbol Nettin Virtual Trailing Stop ORION HUD Dashboard ️ Setup:  Hedging account | H1 | Any liquid forex pairs | Single chart | VPS recommended

Atrion Skyline Trading EA Overview An automated trading system (Expert Advisor) for MetaTrader 5. It combines a moving average (MA) based entry condition with a trailing stop mechanism derived from the Average True Range (ATR). The EA is intended as an example of how a moving average signal can be combined with a volatility-based stop management method. Operation Logic Entry Signal (Moving Average): A configurable Moving Average is used as the entry condition. Buy and Sell decisions are based on

MultiSAR PRO v2.2 — Dual-Logic Multi-Currency Expert Advisor Профессиональный мультивалютный EA на двойном SAR с фильтром H4, логикой XAUUSD и встроенным новостным календарём.   MultiSAR PRO — это полностью автоматический мультивалютный Expert Advisor для MetaTrader 5, построенный на двух независимых торговых логиках: Logic A для кросс-пар (21 инструмент) и Logic B для мажоров и XAUUSD (8 инструментов). Советник использует двойной фильтр Parabolic SAR на таймфреймах H1 и H4 как основной ме

King Strategies  Empire – Expert Advisor Description King Strategies  Empire is a multi-engine Expert Advisor developed specifically for trading XAUUSD (Gold), combining structured market analysis with multiple independent trading systems. The EA is designed around five unique engines, each operating with its own trading logic and approach to market behavior. This modular structure allows the strategies to function independently while contributing to a broader trading framework focused on Gold m

EA Legendary Multi Strategy — A professional multi-strategy advisor. One advisor — dozens of strategies. Confirmed signals. Tight risk management. Designed for traders who value entry accuracy, flexible settings, and drawdown control. This isn't just an advisor. It's a quantum leap in algorithmic trading, where the power of collective intelligence from strategies meets the precision of artificial intelligence. Collective Intelligence: More than 12 independent trading strategies work in unison.

This EA is developed using fxDreema software. The Bollinger Band and Parabolic SAR were used as the strategy of this EA. The risk ratio is one per one point two. This EA is designed to trade on GBP/JPY (H4). The lot size is calculated based on volatility and balance. Trading statistics List Details Initial Deposit $3,500 ( recomment ) but $1,000 is   high risk Currency Pair GBP/JPY Time Frame H4 Max DD 46.29% Relative DD 26.84 % AHPR 0.98 % Profit factor 2.15 Winrate 83.52 % Account ECN, STD, Ce

English Version: ImpulseHedger XAU Tame the Gold Market with Mathematical Precision. Are you tired of "Grid" EAs that blow your account during long gold trends? Most grid systems fail because they lack a solid exit strategy for explosive moves. ImpulseHedger was specifically designed to turn Gold’s high volatility into a calculated advantage using a hybrid "Impulse Grid" and "Smart Shield" system. Key Features: Extended 7-Level Grid: A conservative lot progression ( $0.01$ to $0.03$ ) de

The trading system operates on seven pairs and one timeframe. The Expert Advisor uses trading systems for trend-based entries with the help of the Envelopes and CCI indicators. Each indicator uses up to five periods for calculating the trends. The EA uses economic news to calculate the prolonged price movements. The EA has the built-in smart adaptive profit taking filter. The robot has been optimized for each currency and timeframe simultaneously. Attention! This EA is only for "hedging" account

Rise N Shine: Unleashing the Power of Algorithms Far surpassing the limitations of ordinary Expert Advisors (EAs), Rise N Shine   is a meticulously crafted algorithmic powerhouse designed to deliver   consistent profitability   across a wide range of market conditions. Developed by a quantitative trader with a   proven track record   (9 years of fund management), Rise N Shine leverages a proprietary trading algorithm backed by   rigorous backtesting   to navigate market complexities with   unpa

FanTrader is designed to trade any markets (Stocks, Forex, Commodities, Futures, Cryptos). The strategies are developed based on various Price Actions that will be observed on different Fibonacci Fan Levels. Product Home Page:  https://www.mql5.com/en/market/product/51333 ADVANTAGES: Works on any market and time frames Multiple Strategies in 4 categories:  Retracement, Breakout, Trend Follow, Reversal Trades simultaneously on any number of markets under the same account  Display Fibonacci Fan

Harmonizer EA  is a powerful grid trading tool that uses an  advanced algorithm to calculate entry positions for each individual trade. It is not overfitted to historical data, instead using market volatility to optimize itself. By using market volatility, the algorithm is able to adjust to changes in the market quickly and efficiently. This means that it is able to take advantage of opportunities in the market, while also being able to minimize risk by staying within pre-defined parameters. Ho

Makfin Algo – Smart Trend-Following Expert Advisor for MT5 Makfin Algo is a sophisticated 100 parameter trend-following Expert Advisor (EA) for MetaTrader 5, engineered to deliver consistent, automated trading results while keeping risk under control. Suitable for beginners, experienced traders, and algo enthusiasts, Makfin Algo combines cutting-edge features with user-friendly operation. Key Features: • Automated Trend-Following Strategy: Detects market trends across multiple timeframes

This simple grid trading EA will place limit buy orders or buy stop orders with take profit at each step based on the given price range. User will need to enter the following settings: inputUpperRange - This defines the high price. Default is ask + 1000 points. inputLowerRange - This defines the low price.    Default is ask - 1000 points. inputGridLevels - This defines the number of level (or orders) to place within the given range. Default is 10. inputLotSize - This defines the volume. Default

EA Builder  is a tool allowing you to create  your own algorithm  and adapt it to your  own trading style . Classical trading, grid, martingale, combination of indicators with  your personal settings , independent orders or DCA, visible or invisible TP/SL, trailing stop, loss covering system, break-even system, trading hours, automatic position size and many more.. The EA Builder has everything you need to create  your perfect EA . There is an infinite number of possibilities, build your own alg

Golden Voyage MT5 is an expert advisor for conservative gold trading (XAUUSD), focused on strict risk management and single-position trading. The advisor does not use grids, martingale, averaging, or locking. Trading logic and risk management Single Position Mode Only one trade per symbol can be open at a time. Re-entries and volume increases are not permitted. Fixed risk per trade The stop-loss size is calculated as a percentage of the current balance. The lot size is automatically determined

Discount on all my products until 01.05.  Waiting Night   is a fully automatic Expert Advisor for working on the Forex market during quiet hours. Monitoring of the Expert Advisor:  https://www.mql5.com/ru/signals/1738184 Correct GMT setting:   https://www.mql5.com/ru/blogs/post/743531 All the parameters necessary for the most understandable and simple optimization are available in just 5 settings. You can adapt the adviser to your preferences: adjust risk levels or customize it yourself for a s

OverSeer:Your Thoughtful Trading Ally OverSeer isn’t just another Expert Advisor—it’s a carefully crafted companion for traders looking to navigate the complex world of index trading with a steady, conservative approach. Built through years of experimentation and learning, OverSeer helps you gain exposure to global markets while keeping your strategies grounded in realism. Why Choose OverSeer? OverSeer bridges thoughtful trading strategies and practical decision-making. Instead of trying to pr

Hello, traders! I am Quantum Queen , the crown jewel of the entire Quantum ecosystem and the highest-rated, best-selling Expert Advisor in the history of MQL5. With a proven track record of over 20 months of live trading, I’ve earned my place as the undisputed Queen of XAUUSD. My specialty? GOLD. My mission? Deliver consistent, precise, intelligent trading results — over and over again. IMPORTANT! After the purchase please send me a private message to receive the installation manual and the set

Quantum Athena — Precision Forged from Experience Hello, traders! I am Quantum Athena — the light version of the legendary Quantum Queen, refined and re-engineered for today’s market conditions. I don’t try to be everything. I focus on what works now. My specialty? GOLD.My mission? Deliver sharp, efficient, and intelligently optimized trading performance — with precision at its core. IMPORTANT! After the purchase please send me a private message to receive the installation manual and the s

LAUNCH PRICE – ONLY A FEW COPIES LEFT! The main goal of this system is long-term live performance without using any risky martingale or grid. VERY LIMITED COPIES AT CURRENT PRICE Final Price: $1499 [Live Signal]  |  [Backtest Results]  |  [Setup Guide]  |  [FTMO Results] A Different Approach to Trading Pulse Engine does not use any indicators or specific timeframes. It has a very unique approach that is not used by any other trading system on MQL5. It trades intraday directional patterns. Thes

BB Return — an Expert Advisor for gold trading (XAUUSD). I previously used this trading idea in manual trading. The core of the strategy is a return of price to the Bollinger Bands range, but not blindly and not on every touch. For the gold market, bands alone are not enough, so the EA uses additional filters that eliminate weak and non-working market situations. Trades are opened only when the return logic is truly justified.   Trading principles — the strategy does not use grid trading, martin

Fewer trades. Better trades. Consistency above all. • Live Signal Mode 1 Twister Pro EA is a high-precision scalping Expert Advisor developed exclusively for XAUUSD (Gold) on the M15 timeframe. It trades less — but when it does, it trades with purpose. Every entry passes through 5 independent validation layers before a single order is placed, resulting in an extremely high win rate on the Default configuration. THREE MODES: Mode 1 (recommended) — Very high assertiveness, few trades per week. Bu

Quantum Valkyrie  - Precision.Discipline.Execution Discounted   price .  The price will increase by $50 with every 10 purchases. Live Signal: CLICK HERE Quantum Valkyrie MQL5 public channel: CLICK HERE ***Buy Quantum Valkyrie MT5 and you could get Quantum Emperor or Quantum Baron for free !*** Ask in private for more details! IMPORTANT! After the purchase please send me a private message to receive the installation manual and the setup instructions.      Hello, traders. I am Quantum Val

Real Trading Account   LIVE SIGNAL IC MARKETS:  https://www.mql5.com/en/signals/2339082 This EA uses the same logic and execution rules as the verified live signal shown on MQL5.When used with the recommended, optimized settings on a reputable ECN/RAW-spread broker ( e.g., IC Markets or TMGM) , the EA's live trading behavior is designed to closely align with the trade structure and execution characteristics of the live signal. Please note that differences in broker conditions, spreads, executio

Quantum King EA — Intelligent Power, Refined for Every Trader IMPORTANT! After the purchase please send me a private message to receive the installation manual and the setup instructions. Special Launch Price Live Signal:   CLICK HERE MT4 version : CLICK HERE Quantum King channel:   Click Here ***Buy Quantum King MT5 and you could get Quantum StarMan for free !*** Ask in private for more details! Rule your trading with precision and discipline. Quantum King EA brings the strength of

Prop Firm Ready! Chiroptera is a multi-currency, single trade Expert Advisor that operates in the quiet hours of the night. It uses single-placed trades with tactically placed Take Profits and Stop Losses, that are continuously adjusted to maximize gains and minimize losses. It keeps track of past and upcoming news reports to ensure impacts are minimized and carefully measures real-time volatility to prevent impacts due to unpredictable geo-political disturbances caused by Tweets and other ad-ho

PROP FIRM READY! ( download SETFILE ) WARNING: Only a few copies left at current price! Final price: 990$ Get 1 EA for free (for 3 trade accounts) -> contact me after purchase Ultimate Combo Deal   ->   click here JOIN PUBLIC GROUP:   Click here Live Signal YouTube Reviews Welcome to the Gold Reaper! Build on the very succesfull Goldtrade Pro, this EA has been designed to run on multiple timeframes at the same time, and has the option to set the trade frequency from very conservative to extre

Live Signal:   https://www.mql5.com/en/signals/2360479 Timeframe:   M1 Currency pair:   XAUUSD Varko Technologies   is not a business, it is a philosophy of freedom. I am interested in long-term cooperation and building a reputation. My goal is to continuously improve and optimize the product to meet changing market conditions. Gold Safe EA   - the algorithm uses several strategies simultaneously, the main philosophy is an emphasis on controlling losing trades and risk. Several levels of clos

Scalper speed with sniper entries. Built for Gold. Last 24h  for  399 USD (ends Monday midnight)   |  regular price 499 USD  |   final   price  599  USD Check the Live signal  or Manual Hybrid scalper combining scalping speed with single position or intelligent recovery for XAUUSD. 4 trading strategies | Triple timeframe confirmation | 3 layers of account protection. Most trades close in under 30 minutes — minimal market exposure, maximum control. Wave Rider uses triple timeframe analysis (H1 t

Gold House — Gold Swing Breakout Trading  Price increase coming soon. Only a few licenses remain at the current price (3/100) . Next target price: $999. Live signals: Profit Priority mode ： https://www.mql5.com/en/signals/2359124 BE priority mode :  https://www.mql5.com/en/signals/2372604 Important: After purchasing, please remember to send us a private message to receive the recommended parameters, instructions, precautions, and usage tips. (MQL5 messaging):   https://www.mql5.com/en/users/wa

UPDATE — DECEMBER 2025 At the end of November 2024, the Aurum expert advisor was released for sale. Throughout this time, it traded in real market conditions without a news filter, without additional protective restrictions, and without complex limitations — while confidently remaining profitable and stable. Live Signal (launch April 14, 2026) This full year of real trading clearly demonstrated the reliability of the trading system. Only after that, based on real experience and statistics, a m

Full Throttle DMX - Real strategy  Real results   Full Throttle DMX is a multi-currency trading expert advisor designed to operate with EURUSD, AUDUSD, NZDUSD, EURGBP, and AUDNZD currency pairs. The system is built on a classical trading approach, using well-known technical indicators and proven market logic. The EA contains 10 independent strategies, each designed to identify different market conditions and opportunities. Unlike many modern automated systems, Full Throttle DMX does not use ris

Wall Street Robot is a professional trading system developed exclusively for US stock indices, focused on S&P500 and Dow Jones. These markets are known for their high liquidity, structured movements and strong reaction to global economic flows, making them ideal for algorithmic trading strategies based on precision and discipline. By concentrating only on these indices, the system is able to adapt closely to their behavior, volatility patterns and intraday dynamics, instead of trying to operate

IMPORTANT : This package will only be sold at current price for a very limited number of copies.    Price will go to 1499$ very fast    +100 Strategies included and more coming! BONUS : At 999$ or higher price --> choose 5  of my other EA's for free!  ALL SET FILES COMPLETE SETUP AND OPTIMIZATION GUIDE VIDEO GUIDE LIVE SIGNALS REVIEW (3rd party) NEW - VERSION 5.0 - ONECHARTSETUP Welcome to the ULTIMATE BREAKOUT SYSTEM! I'm pleased to present the Ultimate Breakout System, a sophisticated and

Price Action Robot is a professional trading system built entirely on real market behavior without indicators, grid strategies, or martingale systems. It analyzes pure price action , focusing on structure, trend dynamics, and key market movements to identify high probability trading opportunities. The system is designed to read the market the same way experienced traders do, using logic based on real price movement rather than lagging indicators. It reacts dynamically to changing market conditio

NEXORION: Initium Novum — Deterministic Logic and Algorithmic Synthesis NEXORION is an institutional-grade analytical complex based on rigorous mathematical liquidity processing algorithms. The core concept of the project is "computational transparency": the expert advisor transforms chaotic price feeds into structured geometric zones, visualizing the decision-making process directly on the trading chart. Real-Time Monitoring https://www.mql5.com/es/signals/2372338 Technical System Specificatio

Introducing   Quantum Emperor EA , the groundbreaking MQL5 expert advisor that's transforming the way you trade the prestigious GBPUSD pair! Developed by a team of experienced traders with trading experience of over 13 years. IMPORTANT! After the purchase please send me a private message to receive the installation manual and the setup instructions. ***Buy Quantum Emperor EA and you could get Quantum StarMan for free !*** Ask in private for more details Verified Signal:   Click Here MT4 Version

XIRO Robot is a professional trading system created to operate on two of the most popular and liquid instruments on the market:  GBPUSD, XAUUSD and BTCUSD . We combined two proven and well tested systems, enhanced them with multiple new improvements, optimizations and additional protective mechanisms, and integrated everything into one advanced and unified solution. As a result of this development process, XIRO Robot was created. Robot was designed for traders who are looking for a reliable and

Only 5 copies left at $399. Next price: $499 Grabber Bot is a fully automated Expert Advisor built on the proven logic of the Grabber System, which has already gained recognition and positive feedback from traders on the MQL5 Market. The idea behind this EA is based on real trading experience and user feedback. Many traders using the manual version of the Grabber System faced the same problems: signals appear when the trader is sleeping or busy (resulting in missing about 50% of high-quality tr

PROP FIRM READY!  --> DOWNLOAD ALL SET FILES WARNING: Only a few copies left at current price! Final price: 990$ NEW (from 399$ only) : Choose 1 EA for Free! (limited to 2 trade accounts numbers, any of my EAs except UBS) Ultimate Combo Deal   ->   click here JOIN PUBLIC GROUP:   Click here Live Signal Live Signal 2 !! THE GOLD PHANTOM IS HERE !! After the massive success of The Gold Reaper, I'm extremely proud to introduce its powerful brother: The Gold Phantom , a pure, no-nonsense breako

WANT THE SAME RESULTS AS MY LIVE SIGNAL?   Use the exact same brokers I do:   IC MARKETS , IC TRADING   .  Unlike the centralized stock market, Forex has no single, unified price feed.  Every broker sources liquidity from different providers, creating unique data streams. Other brokers can only achieve trading performance equivalent to 60-80%. LIVE SIGNAL IC MARKETS ( My live signal on IC Markets is still on the old MT4 1.0 – I need to update new live signal to the newest version on MT5 platform

Quantum Bitcoin EA : There is no such thing as impossible, it's only a matter of figuring out how to do it! Step into the future of Bitcoin trading with Quantum Bitcoin EA , the latest masterpiece from one of the top MQL5 sellers. Designed for traders who demand performance, precision, and stability, Quantum Bitcoin redefines what's possible in the volatile world of cryptocurrency. IMPORTANT! After the purchase please send me a private message to receive the installation manual and the setup i

WANT THE SAME RESULTS AS MY LIVE SIGNAL?   LIVE SIGNAL:  https://www.mql5.com/en/signals/2366724 Use the exact same brokers I do:   IC MARKETS  &  I C TRADING .  Unlike the centralized stock market, Forex has no single, unified price feed.  Every broker sources liquidity from different providers, creating unique data streams. Other brokers can only achieve trading performance equivalent to 60-80%. Forex EA Trading Channel on MQL5:  Join my MQL5 channel to update the latest news from me.  My com

We proudly present our cutting-edge robot, the  Big Forex Players EA  designed to maximize your trading potential, minimize emotional trading, and make smarter decisions powered by cutting-edge technology. The whole system in this EA took us many months to build, and then we spent a lot of time testing it. This unique EA includes three distinct strategies that can be used independently or in together. The robot receives the positions of the  biggest Banks  (positions are sent from our database t

Launch promo: Only 1 copies available at 399$ Final price: 2000$ There will be only a limited number of copies sold of this EA Luna AI is a very advanced night scalper and one of the best you can find on the market.  It was developed using years of experience in live trading with the mean-reverse strategy, and selected only the best pairs and techniques to be included in this EA. Since the EA is build upon existing technology that was developed over the years, the EA is very effective and has

UPDATE - FEW COPIES LEFT AT CURRENT PRICE! Not For Traders Who Want To Flip An Account In One Month No Martingale / No Grid / No AI Professional Breakout System For XAUUSD, USDJPY, BTCUSD, US30, and DE40 Live Results:  Live Signal  |  Main Portfolio  |  FTMO Results  |  Public Community Prop Firm Ready! The Range Breakout EA Range Breakout EA is based on a well-known market behaviour: changes in volatility between trading sessions. Volatility is usually low during the Asian session, creating a

Have you ever wondered why most expert advisors are not effective in live trading, despite their perfect backtest performance? The most likely answer is  Over-fitting . Many EAs are created to ‘learn’ and adapt perfectly to the available historical data, but they fail to predict the future due to a lack of generalizability in the constructed model. Some developers simply don't know about the existence of over-fitting, or they know but don't have a way to prevent it. Others exploit it as a tool