MQL5 Algo Trading community — forex forum for traders and developers

Nobody has ever had a bad backtest. How much forward testing is required before you would trust an EA? I have a method that I believe was derived from very sound statistical principles but no-one believes backtests (perhaps rightfully so). How much forward testing to establish credibility? Thanks

Good afternoon, everyone, I know that there are machine learning and statistics enthusiasts on the forum. I propose to discuss in this topic (without holivars), share and enrich our own knowledge bank in this interesting field. For beginners and not only there is a good theoretical resource in

MetaQuotes has launched new MQL5.community information channels on Facebook, X.com (Twitter), and Telegram. These channels provide daily publications of relevant technical materials from the MQL5.com Articles and CodeBase sections. They are designed to promptly update developers on algorithmic

Hello, Following an MT5 update on 28 October 2026, my Strategy Tester has stopped working correctly. Platform: MetaTrader 5, Build 6290 (27 October 2026) Server: MetaQuotes-Demo Symbol: EURUSD, M15 Problem: Strategy Tester repeatedly fails to synchronise historical data, despite historical bars

Hello, I am investigating a discrepancy in the XAUUSD symbol specifications on a MetaQuotes-Demo account. The following values were read directly from MT5: Symbol: XAUUSD Calculation mode: SYMBOL_CALC_MODE_CFDLEVERAGE Contract size: 100 Tick size: 0.01 Point: 0.01 Profit currency: USD Account

I bought a expert advisor , week ago, and it s not what it shows in the test the developer tried to send me a different EA, to try to compensate the terrible EA I bought. But It s not what I was looking in the first place. So it s simple, I have been chatting with the developer, if the EA is not

MT5 Build 6290 Strategy Tester fails to load built-in indicators — Error 4805 : Hello, My MT5 Strategy Tester stopped working. Both my custom EA and the built-in ExpertMACD fail during initialization. Platform: MetaTrader 5 Build 6290 Symbols tested: XAUUSD-STD and XAUUSDm Errors in Journal: cannot

My account was regi̇stered using google. my emai̇l i̇s veri̇fi̇ed and i can access my exi̇sti̇ng account. I have already purchased an EA on this account I cannot create a password because i never had one. Password recovery i̇s blocked due to too many attemps I refuse to create a second account

Hello, Before resynchronizing my MT5 Virtual Hosting subscription, I need to confirm whether existing runtime-generated files in the Hosted MQL5/Files directory are preserved. My EA uses two A/B state files created with FileOpen() without FILE_COMMON . They are not declared with #property

Hello MetaQuotes Support Team, Administrators and MQL5 Community, I am writing here because I have been struggling with a serious MQL5 Community and Market connectivity problem for the past four days , and I have still not received a working solution from technical support. My latest communications

I have uoloaded an indicator to mql5.com However i have a pdf document with more detailed instructions. How can i upload it so that its available to a purchaser. what are the options. thanks

Where can I privately request correlation of existing MQL5 Cloud Protector failure sessions? Ordinary compilation succeeds, but the Protector connects and authorizes, then reports "request to protector server failed". I am seeking the official channel and the correlation details required for records

My friend developed an Expert Advisor (EA) that sends notifications to Telegram. However, after installing it on a new VPS, the EA was no longer able to send notifications, while it continued to work normally on the previous VPS. After investigating the issue, I noticed that the two VPS instances

Subject: MT5 Automatic Server Switching, Temporary Broker Disconnections, and Potential Impact on Expert Advisors (EAs) Hello, I use MetaTrader 5 with an Expert Advisor (EA) that operates on real-time ticks rather than waiting for candle closes. I have noticed that MT5 can automatically switch to

2–3 consecutive losses, 4–5 consecutive losses, 6 or more consecutive losses, The number does not matter. I stop when my drawdown limit is reached, I keep trading as long as the signals meet my system’s rules, I have no fixed rule. I decide based on the situation

Has anyone actually used an EA for passing their prop firm challenge and maintaining their prop firm accounts over a long period of time? If so, do you have proof? Trade history on myfxbook, for example? Thanks

I was testing a daily loss lock in the Strategy Tester (100,000 account, 5% daily limit = 5,000, lock set at 90% of the limit). With "1 minute OHLC" the lock fired late: the day closed at 105% of the limit. With "Every tick based on real ticks" it locked at 90.0% (−4,501), exactly as designed. The

Please somebody help me with this. I know that this is a simple and basic ,maybe even stupid question to ask ,but it still give me a headache. Anyway , here it is: What is a tipical(average,expected whatever you want to call it) spread on XAUUSD preferably on ECN type accounts. Of course ,i know it

Hi everyone, I’m working on an automated interpretation of a trendline trading approach in MQL5 and would appreciate technical feedback on how to validate its behavior in the MT5 Strategy Tester . The strategy inspiration comes from Tori Trades’ video, “Once you master this strategy, trading becomes

Hello! In the Marketplace at mql5.com you can download a demo version that only works in the strategy tester . Many clients do not consider the Strategy Tester as a valid proof and have doubts about the robot's efficiency. Can I place a link to the trading robot demo version in the product

What kind of vps do you use? Maybe some cheap and reliable advice for 5-10 terminals

We run a small MT5 stack with a 1 % daily loss cap. It had been in place for months and we trusted it. Replaying our own history, a day where every stop gaps at its instrument’s 99th percentile reaches 13.84 % of equity . Not 1 %. The cause is simple once you see it: the limit counts the stop, not

Hello traders, I have been working on algorithmic strategies for XAUUSD (M15 timeframe), and one of the biggest challenges I face is controlling drawdown while maintaining solid profitability. In your experience: - What risk management techniques work best for gold? - Do you prefer fixed lot or

Shinigami ask me to put my latest indicators and templates.. so if you are new for reading this thread, please use this indy and template because this is what i use now after download this zip file, just go to page number....... (i forgot, sorry ) the rule is using h1 1. if 2 SMMA WEIGHTED CLOSE...

Good day dear forum members. After reading the forum a bit, I came across several threads on arbitrage and pair trading . Judging by the threads, some are interested and some are trying it. I used to dabble in this topic a long time ago, but my knowledge was not enough. Now I am a complete mess in

Modifying A Good Trading Strategy Prematurely. Strategies will often go through a losing period but the issue comes down to knowing when a change has occurred. Many traders will try to tweak indicators, add filters or change entry rules after a few losing trades. This can cause overfitting of your

Which strategy is best to close profitable positions

How do you measure the real impact of economic news on an EA? I've been researching how automated trading systems behave around economic releases, and I've noticed that simply classifying events as Low, Medium or High impact doesn't tell the whole story. Two High-impact events can produce completely

Over the years, I’ve tested and observed many Expert Advisors, especially on XAUUSD. And there’s something that keeps repeating itself again and again. Most EAs that show amazing backtests on gold rely on some form of martingale or grid logic. At first glance, everything looks perfect: high win

Hi all, Recently i tried to optimize a strategy, i choose the fast genetic optimization since the number of passes where high. I used the system resources and also the MQL5 cloud network at the same time. Local optimization is working fine, but the cloud optimization is failing. In the Journal the

I'm trying to figure out if I can have a list of all my trades for the same utensils separate rather than one bulk position in the tool box/terminal box. Is this even possible? Thanks

Hi, I have recently started learning MQL5 language and all the tutorials are only focused on Forex market. I have been trading Futures contracts(manually) with <Deleted>. So, my question is If i keep learning Mql5 language, will I be able to develop EA for Futures market(with <Deleted>)? Thank you

What is your Preffered Syle of trading? Swing Day Or Scalping? What EA would you prefer for developers to make you assuming All of the work and are profitable

Hi, Can someone please let me know how to use Metatrader5 to trade in stocks in NSE and/or BSE stock markets in India? Thanks, Amitabh

Hello, Can any one please suggest me the best indicator for binary options trading? Thanks...

I used to use metatrader4 when I was messing with Forex, but I have funds that I'd like to use out of my stock porfolio to trade one particuarl stock which goes up and down $1-2/day pretty much all the time. I'd like to set metatrader up to say, sell at a certain price, then buy at $2.00 lower, then

Dear all, I am trying to import historical data (M1) to MT5 from my Tradestation account. I have export the data in csv format and below there are some rows as example: "Date","Time","Open","High","Low","Close","TotalVolume" 1/2/2008,03:01:00,3841.00,3842.25,3840.25,3841.75,184

Does anyone here trade Nasdaq? What leverage do you get from your broker

Does anyone here trade BTC

Hi All How do I add the NSE Indian Market- Stocks and Futures into the MT5 market watch. Thanks a ton for your help. Regards Praveen

what is the procedure to add symbol from NSE to MT5 marketwatch and start trading NSE option trading and back test

If BTC/USD has support at $68,000 and resistance at $70,000, what type of group or person would keep dumping at $70,000 when they make very little profit from a buy at $69,000

For the past weeks I've been developing an EA based on SMC, multitimeframe liqquidity-sweep: Stats are good IMO, DD < 10%, good sharpe ratio, etc... But I question myself about this being more stable? Such as diversifying. My main problem is choosing a variety of pairs, i.e: EUR/USD GPB/USD USD/JPY

I want to demo Options board on MT5 but cant find ANY one who offers it? Where can i try the MT5 options board? Who is currently demo/ real trading with MT5 options platform? its ridiculous i cant find ANY information on how to actually do it/ who offers it. Its almost as if it doesnt exist/ noone

Hello everyone, I’m investigating an initialization failure during automatic Market validation of my MT5 Expert Advisor, The 500 Calabash EA, version 1.65 . test on EURUSD,H1 (hedging) tester stopped because OnInit returns non-zero code 1 disconnected there are no trading operations The validation

Hello, We are preparing two local MT5 Strategy Tester runs on build 6230 using “Every tick based on real ticks” (Model 4). Both use RoboForex Demo ECN hedging, EURUSD and USDCHF, and the historical period from 17 August 2020 through 13 August 2021. The planned difference is the fixed execution

Running 2 EAs on MT5 via VPS. Recently had one go quiet for about 3 days — no crash, no errors in Experts or Journal, smiley face still there, terminal connected. It just stopped taking trades. I only found out because I manually check the accounts every few days. Could easily have been longer

I do most of my development runs on M1 OHLC because it's fast. Before I release anything I rerun the finished EA on real ticks. On EAs that wait for a setup and give the trade room, the two modes usually land close together. On anything with a tight target they can be far apart. In 1 minute OHLC

Hello. In a newly installed terminal, WebRequest() returns 1009 and GetLastError() returns 5203 for one domain. Another terminal on the same VPS reaches the same domain without any problem. I tested with a simple GET script on a live chart, and the results are below. Terminal A (build 6295 , newly

Any EA that works with fixed session times (Tokyo fixing, London open, New York close) needs the broker's GMT offset, the difference between server time and UTC. Live, TimeTradeServer() - TimeGMT() gives it. In the Strategy Tester it does not: the documentation says that during testing TimeGMT() is

Why didn't my EA get triggered during the NFP news release, even though it doesn't use a news filter? Can anyone help me understand why this happened

Hello. i have gold ai made via Ai finally got it working, now i need help tweaking settings so we become rich. Its expert advisor for gold that follows stop limits and follows price until a thresh hold is met for trade. So far back testing ends in account wipe. please help

Hi everyone, there were a few threads here lately about backtest vs live. Most ask why the two differ. I'd like to ask something a bit different: how do you notice it early enough? What I do with my EAs is pretty simple. I run the backtest over the same weeks as the live trades, on my broker's

After a lot of bought EAs, prop challenges and backtests that looked great, I ended up with a short checklist I now go through before I pay for anything. Backtests weren't the problem. They just never told the whole story. Here's my list. Curious what you'd add or disagree with. 1. Deposits dressed

If this topic is not allowed please delete it. I am only asking purely for educational reasons. Not for intent. It was the case that since 2016 there was not solid proof that MT5 ex5 cannot be converted to MQL5 . In fact there were so many scam services offering that. This is what I would also say

The given errors are: 'iMA' - wrong parameters count ThreeMA_Strategy_EA.mq5 76 22 'iMA' - wrong parameters count ThreeMA_Strategy_EA.mq5 77 22 'iMA' - wrong parameters count ThreeMA_Strategy_EA.mq5 79 22 'iMA' - wrong parameters count ThreeMA_Strategy_EA.mq5 81 23 'iMA' - wrong parameters count

Hello. An MT5 EA returns only "there are no trading operations" in automatic Market validation: EURUSD H1, XAUUSD D1, GBPUSD M30 and EURUSD M1 (hedging). There is no detailed Expert journal in the report. The exact submitted EX5 trades locally on MetaQuotes-Demo, XAUUSD D1, with factory Inputs, real

I've recently noticed an issue where now my EA is not able to execute any orders. Every time it tries to place an order it says that "unsupported filling mode" and then when looking closer into it, it will say give an error saying "Ordersend error 4756". I am not sure at all why this is happening

Good Afternoon ! I Always use M1 and 1 minute OHLC in tester configuration windows for optimization an its ok until 2026 june, I update Metatrader to version 5 build 6140 now 2026 august and now I have to set timeframe to same as I set in tester parameter window. Example "Mean Reversion.Ex5" example

I've developed a new SuperTrend indicator. It works the same as the ProRealTime version where you can set the 'Nbr Periods' and 'Multiplier' values. Bear in mind that because of differences between brokers that in places it may change direction earlier or later than the ProRealTime version if you...

been asked for this a couple of times by pm,so here it is

Everything about pivot indicators you may find in this thread. Besides there are some usefull links as well: - how to trade with pivot (manuals) is here . - some trading system based on pivot https://www.forex-tsd.com/forum/trading-systems/1158-pivot-system - pivots, camarilla, high/low etc.... is

I am continuing posting information about indicators. So, we have information about Stochastic indicator https://www.mql5.com/en/forum/177239 We have the thread about Momentum indicator https://www.mql5.com/en/forum/176430 Now something about Parabolic SAR. OverviewThe Parabolic Time/Price System,...

Why the version of MT5 backtest speed such slow, I pend it over night(~8 Hours), only 1 pass finished but I have brought a new cpu, the usage of CPU keep only 11%

RSI indicator We are continuing discussion about the indicators. We have the following thread: Parabolic SAR indicator Momentum indicator Stochastic Oscillator Divergence Indicator Now we are talking about RSI. "Technical Analysis from A to Z": Overview The Relative Strength Index ("RSI") is a

My intention of the code below is to display 3 periods of moving average lines for the range of bars specified by chart window width. Although first period of line is drawn properly, succeeding 2 period lines fail to draw due to CopyBuffer error (4806 : Requested data not found). I cannot figure out

Repainting indicators look perfect in history and useless in live trading. Here is a check anyone can run without any tools. 1. Screenshot the last 20 signals today. 2. Wait for 3 new bars - do not reload the chart. 3. Screenshot again and compare. If an arrow moved, disappeared, or appeared late

Hi! I'ld like to be able to draw some rectangles that are gonna mark support and resistances zones that may take lots of bars to be crossed, thus being relevant for a lot of time. In my tool, I do that by extending the final points of the rectangle to a whole new year in the future: The problem is

Does anyone have a large collection of oscillators (works best in a trading range) that he/she put together? Maybe we could start a thread where all oscillators are gathered. And let's go a little beyound RSI and Stochastic

Why is it that MT5 has a white flicker when you change timeframes while MT4 operates smoothly? Is it because the charts in MT5 are not preserved and are rebuilt every timeframe switch? How does this affect the objects in the charts? Is there a way, or can you make a way to make the chart engine the

Most of the repainting complaints I see in this section come down to one assumption, not to the detection logic or the buffer handling. MetaTrader hands OnCalculate its price arrays oldest to newest. Not series, not reversed, not newest first. Index 0 is the oldest bar currently loaded, and index

Hi, i'm trying to create an indicator with claude ai help, and it's almost works well, this code is intended to draw a plot arrow into the particular candle as a signal based on stochastic level the only issue i face is the signal only appear on previous candle that already formed, meanwhile for the

I'm looking for someone that feels the have developed a good working Kalman Filter Model to use in the fx market

Hi everyone, I am looking in vain for the code of this MESA projective indicator to be placed on the price that draws in the future the length of the cycle; Has anybody worked on that or know where to find it? I am looking for this indicator able to: take advantage of the adaptative cycles from J

Prop Risk Guard MT4 - daily loss and drawdown protection : Protects a prop-firm or personal MT4 account: daily loss limit, max drawdown (static or trailing) and profit-target lock. On a breach it closes all orders, deletes pending orders and keeps the account flat until the lock resets. Author

Repaint Checker MT4 - find out whether an indicator repaints : Tests any MT4 indicator for repainting: records what every buffer showed when each bar closed, reads the same bars again later and reports values that changed, signals that appeared late and signals that vanished, with dates. Author

Prop Risk Guard - daily loss and drawdown protection : Protects your account from a prop-firm rule breach: daily loss limit, max drawdown (static or trailing) and profit-target lock. On a breach it closes all positions and pending orders, then blocks new trades until the lock resets. Author: OBAFEMI

Repaint Checker - find out whether an indicator repaints : Tests any MT5 indicator for repainting: records what every buffer showed when each bar closed, reads the same bars again later and reports values that changed, signals that appeared late and signals that vanished, with dates. Author: OBAFEMI

Check out the new article: Self-Learning SuperTrend: An Adaptive Machine Learning-Based Trend Indicator . The classic SuperTrend loses accuracy when the market regime changes because it uses fixed ATR parameters and a fixed multiplier. The article examines the architecture of ML SuperTrend Pro v2.00

Supertrend Gold Signals : Supertrend indicator for MT5 on Gold (XAUUSD), forex and indices: ATR trailing line in two colours, buy and sell arrows only on the closed candle of the flip, popup, push and sound alerts. Open source code. Author: Cristhian Alexander Gaibor Cuasquer

Check out the new article: Coyote Optimization Algorithm (COA) . Introducing an MQL5 implementation of the Coyote Optimization Algorithm: packs with local alphas, a median-based tendency, and built-in crossover enable parallel exploration of regions of the search space while keeping premature

Check out the new article: Measuring Spread Costs Before a Market Order in MQL5 . The article implements a MetaTrader 5 Expert Advisor that provides spread-only pre-trade estimates in points for a planned Buy or Sell. It compares a current-spread result with a historical scenario that uses the

Check out the new article: Making Custom Indicators for Beginners (Part 1): SuperTrend Indicator . This article builds a robust SuperTrend indicator in MQL5 using ATR-based bands, a ratchet mechanism, and strict series indexing to avoid silent recursion errors and repainting on closed bars. We walk

Check out the new article: Automating Classic Market Methods in MQL5 (Part 5): The Original Turtle Trading Rules . This article builds a complete MQL5 Expert Advisor that implements the original Turtle Trading rules from Curtis Faith. It covers both systems: 20/55-day breakouts, the System 1 skip

Check out the new article: Estimate the Probability of Large-range Sessions (Part 1): Build and Check EURUSD Forecasts . We estimate the probability, at broker time 08:00, that EURUSD's 08:00–16:00 range exceeds 1.25 times the mean of the previous 20 complete, valid target ranges. A two-feature SPSS

Check out the new article: Overcoming Accessibility Problems in MQL5 Trading Tools (Part VIII): Building a Floating Risk Management Calculator Module for Any EA . A reusable MQL5 component measures floating P/L with swap, gross loss, two stop‑loss quantities, equity gap, margin level, and stop

Check out the new article: From Evidence to Execution (Part 2): Turning MetaTrader 5 AI Strategy Logs into Robust Rule Based EA . This article turns the Part 1 evidence into a working MQL5 Expert Advisor. It formalizes entry conditions, designs direction-aware stop loss and take profit, and

Check out the new article: Measuring What Matters (Part 5): The Risk Concentration Indicator — Plotting Eigenvalue Dominance Live . This article presents a live MQL5 indicator for monitoring portfolio risk concentration through eigenvalue decomposition. The indicator calculates rolling covariance

Engulfing Indicator : This is an indicator that helps identify Engulfing candle patterns. Author: Minh Hieu Hoang

Hi traders, several times traders from forums ask if there is an indicator simply showing the current pair's spread. I already programmed such an indicator for my own use and decided to contribute it to the community. Feel free to comment! By the way, it's also posted @ codebase.mql4.com Indicator...

Comments that do not relate to the " Ask for help ", have been moved into this topic

Hi everyone i have a problem i bought a new vps and i cant login my mql5 account on the mt5 i have logged in my trading account but mql5 account login is giving error login failed and in journal it says mql5.community authorization failed i have tried everything Microsoft WebView 2 reinstalled mt 5

Hi All, I am trying to set up an outlook email under TOOLS>OPTIONS>EMAIL but am having issues I keep getting the error " Mail: login to smtp-mail.outlook.com:587 failed", I have also tried using smtp.office365.com:587 instead of smtp-mail.outlook.com:587 but it still comes back with the same error

I have 4 MT4 terminals, with 15 charts per terminal. I've been updating my trading system lately. One of the measures I took was to reduce the number of indicators on each chart, thinking that this would make my system snappier. To this end, I coded one indicator to have multiple buffers and display

Members of the forum, don't forget to follow the rules

Programmatically placed arrow objects work but interfere in readying the chart. The common function below, in hopes to disabled it, can't handle dismissing it. ObjectSetString ( 0 ,sName, OBJPROP_TOOLTIP , "" ); In the object you drawn manually for example, this is what you see,. I have indeed seen

Hello, I need help retrieving missing EURUSD M1 history for an MT4 Strategy Tester backtest. My setup: Broker: OANDA U.S. Platform: MT4 running in Windows 11 through Parallels on a Mac. Required history: September 1–October 23, 2026, including September for indicator initialization. In my October

Hello, Do you listen any music while you trade? I have tried with many different kinds, but I think classical music is the most appropriate to remain discipline focus and calm . Any replies are appreciated. Let's start

Hello, I am preparing my first MetaTrader 4 Expert Advisor for the Market (draft product ID 201415) and the automatic validation fails. I would like to understand how the validator tests MT4 Expert Advisors. Version 1.30: the report shows 22 errors on NZDUSD,H1: "not enough money for buy 0.20

Platform: MT4, desktop and iPhone Server: MetaQuotes-Demo Symbol/timeframe: XAUUSD, M15 Candle: October 27, 2026, 22:00 server time Open: 2.04 , High: 4061.68 , Low: 2.04 , Close: 4061.43 The same spike appears on both devices and a newly opened demo account

I am writing mql script to look for any change in the file and if it detectes any change in the file then it performs some trading function But after the mql "FileOpen "call desired file becomes unusable by other application even with "FILE_SHARE_READ" flag. What I am doing wrong or this is how Mql...

Hello, I am looking for an official MetaEditor distribution for MetaTrader 4 to compile and investigate my own MQL4 program in an isolated Windows environment. I would appreciate clarification on the following questions: Is there an official, fully offline MT4 installation package that includes

Hi bros, yesterday I had an idea, pick all the best trend following default indicators on TradingView and made a super TS with the conjunction. Claude from Anthropic did the excellent job. Here is the .mq4 file and a example image