MQL5 Algo Trading community — forex forum for traders and developers

Hello, I would like to clarify the official command-line exit-code semantics of MetaEditor 5.0.0.6274 on Windows 11. I compiled one isolated MQL5 script using metaeditor64.exe /compile with logging enabled. Observed results: Compiler diagnostics: 0 errors, 0 warnings. Code generation: 100%

may I know what is the profitable EA here, monthly ROI 40 to 50 percent? I need your help to make a profitable against my hundred of loses from the fast. May God bless you

Hello traders, With recent volatility across major pairs and Gold (XAUUSD), risk management has become more critical than the entry signal itself. For those running automated systems or strict manual strategies: do you prefer using a fixed lot size with manual adjustments, or dynamic lot sizing

Hello everyone, I am a developer from India working in Freelance and the Market. I am trying to make my first withdrawal and every card attempt fails the same way, so I am hoping someone in India has solved this. What happened: - 14 Oct: 42 USD to a Visa credit card (order A_261014_1013) - "Declined

Hi , I changed my mql5 password and now i can't log in to my terminal anymore Using the same username and new password i can log in to the mql5 website just fine , i only have this problem logging in my mql5 account on a MT5 terminal using the exact same login details What do i need to do so i can

How many of you have lost a prop firm challenge because of the loss limits (daily or maximum), and not because of the strategy? And what would have helped you the most to pass? A clearer rule from the firm, an alert before reaching the limit, a fixed daily routine, smaller position sizes, or

Summary: Since some build between 5833 and 6140, the Strategy Tester returns real_volume = 1 for bars of any timeframe other than the tested chart timeframe. tick_volume is still correct, and so is history before the test start date. On the chart timeframe itself, real volume is correct. Build 5833

I activated my seller account successfully months ago. Then, I tried to edit my public name that had 4 names to my first and sur names only. Attempting to do so apparently triggered a ban on my name. I tried new registry with other emails but whenever I get to the ID verification my application gets

Dear Admins and Community Members, Could you please guide me? Unfortunately, I have been unable to complete my payment. I contacted my bank regarding the issue. They confirmed that my credit card is active, has sufficient available funds, and that all of my card details are correct. However, they

Hello everyone,  I recently tried on making a purchase on mql5 but my transaction was declined, even though I was able to purchase a signal before. I made sure all the card information was put in correctly, even contacted the bank and no issues there. Help!

Hello, Today, I installed MetaTrader 5 and received Build 6285. Immediately after installation, I encountered the following error: MQL5.community: authorization failed This error appeared even though I had not attempted to log in to the MQL5.community account. I then tried logging in to my

I have been running MT5 on my Kali Linux system for a while and recently purchased a cheap computer. Naturally, as I develop EAs, my aim was to run the new computer more or less as a server to live test them on a demo account (so please don't suggest that I get a VPS). Got Kali up and running on the

Provider: MQL5 Lite Response: Let me start with the mandatory pre-flight. First, I need to call get_workspace_info on MetaEditor (the metaeditor5 server). Let me look at the available tools. Actually, the metaeditor5 extension instructions say: "MANDATORY PRE-FLIGHT STEP: The absolute first action

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

This is a very old bug. I have already reported it years ago, but it still hasn't been fixed. Scale adjustment functions do not work in the Strategy Tester. The values ​​cannot be set either manually or via code. //+------------------------------------------------------------------+ //| Expert

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

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

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

Hello everyone, I wanted to share some lessons learned about parameter optimization, hoping to get your feedback and maybe some ideas to improve. 1. Walk- forward optimization beats simple single-period optimization. A strategy that looks great on one year of history often breaks on the next six

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

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

I've been thinking about market regimes lately and I'm starting to question how we normally build EAs. Most strategies are basically built around the assumption that the market behaviour we see in the backtest will continue to exist in the future. But we all know that isn't always the case. A trend

Hi Here is the code I use for my money management. - Actually it shouldn't be called MM, as it is only calculates how many lots can I buy so that when I hit my stop loss I only loss a certain percentage of my account. I think though that is one of the crucial aspects of forex- trading - as it leads...

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

I run an LLM-driven intraday scalper on MT5 (demo). Over 60 closed trades it lost $212, and commission alone was 40% of that loss. Before asking "how do I make it profitable", I spent two weeks trying to establish whether it has any directional edge at all. It does not — and I want a sanity check

Hello, Could anyone tell me about flitration in Metatrader 4 Administrator? i didn't understand about it. Thank you

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

Forum on trading, automated trading systems and testing trading strategies Test version of MQL5 Copilot in beta 3647 Renat Fatkhullin , 2023.03.23 23:11 In today's beta version 3647, we've included the first version of Copilot, a feature to enhance the editor's ability to write code. The settings

HI,Which strategy is best for BTCUSD

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

SP500 and NASDAQ Indexes are not up to date and have been disabled for some time now. Is anyone else experiencing this

Hi @ all, i´m new with MT 5 and wanted to know if its possible to trade on sim/demo account other markets than forex? For instance, NQ, SP500, etc. For now i only see forex markets to choose from. Any ideas? Thanks

Hi Everyone, Long time reader first time writer. I'm working on an EA that uses Heiken Ashi candles and needs to know if the previous bar was bearish (red) or bullish (white). There is a buffer for close and open price and I have variables that update for previous bar close and open based on the

Hi, I am totally new in MT5 Python API and I hope, my question is quite trivial - I couldn't find anything: How to install a MT5 listener so the Python script gets notified, once a trade was closed by a S/L or limit order? Is there a sample somewhere? Which functions to use? Thx

Hello, I recently published on the MQL5 Market but I am unable to install the demo version of my own product. The installation fails without displaying an error code in the MT5 Journal. The Journal shows Downloading but nothing else No further error or successful installation message appears. I

Hi all, In early October 2026, I went through the product pages and public signal track records of ten of the best-selling scalping and martingale-type EAs on the MQL5 Market, and checked every figure twice. I'm not naming any sellers — patterns matter more than people. Here is what kept repeating

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

Hello MetaQuotes team, I am trying to establish the provenance of an EX5 file loaded by a local MetaTrader 5 Strategy Tester agent. In one run, the agent journal reported “expert file added ... 239101 bytes loaded,” while the frozen local EX5 file measured 239012 bytes. I do not know whether these

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

Hi, i'm intended to create an EA with AI Assistant (MQL5 model), but before there are somethings i wanna know first: Can I build complex EAs with MQL5 Lite, or does its capability depend on the prompts I give it? Can I continue working on my prompt in the same chat room on another day once I've

Hi traders and ea coder, kindly share ur views on my strategy , intraday, 1) daily every new high buy entry, 2) daily every new low sell entry, 3) timeframe 5 min and 1 hour 4) stop loss previous swing high for sell stop loss previous swing low for buy or 5) stop loss current day high for sell

I’m currently coding an MT5 EA and I’d like to add an image/logo directly onto the chart (not just text or lines). I’ve been experimenting with OBJ_BITMAP and OBJ_BITMAP_LABEL, but I’m not fully sure how to properly load and display a custom image in the EA. Has anyone here done this before?🤷‍♂️

I have discussed a couple of times in threads about EAs and if they have any real edge or not. But what is really considered an edge? Is it a combination of indicators that on historical prices of a specific market can predict the direction of price most of the time? Will it suffice to have a

Hello everyone, I’ve seen Expert Advisors that have managed to run profitably for years. Even a few martingale strategies have kept going much longer than expected. But sooner or later, most seem to blow the account or simply stop performing the way they once did. It makes me wonder what it really

Hi all My EA is different in teser and prop firm account. Please help On 7 Sep, 2026, the no. of lot increase by 1 in tester , but not in prop firm account Prop firm account The function is as follows: int LastLotCnt() { int re; long l_timecurrent = TimeTradeServer (); double

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

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%

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

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

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

My breakout EA work on different currency pairs need an indicator to help to avoid false breakout. May be consider the volume or anything else is OK. Please advise. Thanks Peter

We are continuing discussion about the indicators. We have the following thread: https://www.mql5.com/en/forum/175886 https://www.mql5.com/en/forum/177239 https://www.mql5.com/en/forum/177358 https://www.forex-tsd.com/forum/debates-discussions/9785-rsi-indicator https://www.mql5.com/en/forum https...

Good day, This is a public technical question. It is not a private support ticket. A response is not guaranteed. A response from other participants remains to be seen. supporting us until authorship is officially assigned to MetaQuotes and The statement binds the built-in iMA to exactly this build

Hi, I read that using ArrayCopy on the same array could cause data corruption when the initial source index is lower than the target index, due to the left-to-right copy. I tried, but no data corruption was detected. Can I be sure this won't happen under any circumstances? Here a simple script

Hello Friends! I tried to convert an indicator from MQL4 to MQL5. the indicator named: Swing Cloud and I don't know what is wrong with MQL5 code. In uptrend the cloud should be below the price and in downtrend the cloud should be above the price. Here is on MT4 it print the cloud in the correct

I have an indicator that combines the drawing of colored arrows and colored lines. The logic for determining colors and the colors themselves are exactly the same for both arrows and lines. Does each colored plot need to have its own color buffer? Or is it possible to use one color buffer for all

Is it possible to work with txt, csv or other files in the testing strategy? If so, how

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

All the indicators which are helping the detection the trend please post here. The first indicator is sinTrend. The value of about zero is the float, the trend is started if the value of indicator is equal or above 0.0015 or minus 0.0015, the value of above 0 is uptrend, below 0 - downtrend

Check out the new article: Measuring the Probability of Backtest Overfitting of Your MetaTrader 5 Optimization (Part 1): The CSCV Engine in MQL5 . This article implements the Probability of Backtest Overfitting in MQL5 with Combinatorially Symmetric Cross-Validation. It shows how to build the

RealizedVol: range volatility estimators, realized variance and HAR forecasts : Parkinson, Garman-Klass, Rogers-Satchell and Yang-Zhang estimators, daily realized and bipower variance from intraday bars, and HAR volatility forecasts. Author: Mohamed-amine Baddir

Stationarity: KPSS, Phillips-Perron, DF-GLS, Zivot-Andrews and variance ratio tests : Five tests to tell a random walk from a mean-reverting series: KPSS, Phillips-Perron, DF-GLS, Zivot-Andrews with the break date, and the variance ratio. Author: Mohamed-amine Baddir

Risk Lot Calculator - lot size from your risk and stop (class for EAs + chart panel) : Drag the stop-loss line and read the lot size that risks exactly your money or percent. The CRiskSizer class does the same in an EA: lot rounded down, minimum lot never forced, max lot, volume limit, stop level

Broker Time - server, UTC, New York, London, Sydney, Tokyo with the right summer time (class + session lines) : CBrokerTime converts server time, UTC, New York, London, Sydney and Tokyo with the real summer time of every year and finds your broker's clock from the history (also in the tester). The

Check out the new article: Launching MetaTrader VPS: A step-by-step guide for first-time users . Everyone who uses trading robots or signal subscriptions sooner or later recognizes the need to rent a reliable 24/7 hosting server for their trading platform. We recommend using MetaTrader VPS for

Market Structure BOS and CHoCH - swing points HH / HL / LH / LL, no repaint, alerts : Market structure in the way of Smart Money Concepts: swing highs and lows with HH / HL / LH / LL labels, BOS (break of structure) and CHoCH (change of character) lines. Swings count only after their right candles

Heikin Ashi Candles : A clean Heikin Ashi indicator that draws on the main chart window. It also adds one horizontal line at the average price, (Open + High + Low + Close) / 4, of the last closed candle of a chosen timeframe. By default this is H1, and the line uses the normal candles, not Heikin

GDS Renko Liquidity Sweep Lab : GDS Renko Liquidity Sweep Lab is a free educational indicator for studying what happens after price crosses a confirmed Renko swing level. Author: Andrey Goida

Check out the new article: Beyond Squared Returns: Path-Dependent Volatility . This article implements a path-dependent volatility model in MQL5 that keeps the sign of returns. The engine uses two-timescale EWMA kernels (four accumulators) to form activity and trend features, with closed-form

Check out the new article: Behavioural Cloning in a Live Trading System: What Live Experience Can and Cannot Teach . This article measures a live-to-train behavioral-cloning loop for an RL trading system across 83 models. Outcome-weighted imitation shifted the policy toward Hold (48% → 82%), with 12

Check out the new article: Fundamentals of Bayesian Inference in Discrete and Continuous Settings: From Theory to Practical Model Implementation . The article discusses the fundamentals of Bayesian statistics in both discrete and continuous settings. We will progress from classical Bayes’ theorem

Smart Money Concepts BOS CHoCH : Market structure indicator for Gold (XAUUSD), EURUSD and any symbol: swing highs and lows with HH HL LH LL labels, BOS and CHoCH drawn on closed candles, alerts and 4 buffers for EAs. Open source code. Author: Cristhian Alexander Gaibor Cuasquer

Check out the new article: Broker Time vs Real Market Time — Building a DST-Aware Session Clock in MQL5 . Session filters can run an hour off when a broker and a market change their clocks on different dates. This article presents an MQL5 include file, SessionClock.mqh, that converts London, New

Check out the new article: Neural Networks in Trading: Iterative Forecast Refinement Models (Key Components) . In this article, we explore the inner workings of the RAFT framework — one of the most precise and elegant approaches to analyzing dynamic processes. Step by step, we adapt its idea of

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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, 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 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

First could you please assign a shortcut, in the MetaEditor for "SaveAs" ? I never use "save all" and always use "save as" having to always reach the menu just to save a copy is painful when you do that all day Secondly could you please restore MT4 way of showing partial backtests if the backtest is

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

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

Hi guys. Can an EA be programmed to recognize when a user manually opens or closes a trade from the chart

Hi, I'm using a custom moving average indicator. After updating to build 1491 Metatrader 4, the indicator goes missing from the chart whenever I start MetaTrader. When I reapply the template, it sometimes shows all the indicators I saved, but other times it only shows one . 1. All indicators are

Hi there I installed Metatrader 4 and add an EA to the chart. I am able to configure the settings for the EA and save to a set file But when I request the settings of the Expert advisor after config, I get this screen. The EA does not take any orders. It works on another laptop. What do I miss on

You may have already noticed that the most interesting things now happen mainly on the MQL5.community . MQL4.com is about to be switched to the data archive mode. Only Book and Documentation sections will remain on MQL4.com by November. Besides, the entire MQL4.com Forum content is to be transferred

Custom indicator Heiken Ashi no longer shows up on the chart after auto compiles at the initial load of terminal after the version update Strategy Tester also shows the following errors regarding Heiken Ashi. 0 01:10:42.456 2025.06.01 22:00:00 PlutusV2613 EURUSD.FX,M1: HA Error: Indicator not ready

Hello, I am posting this in the MQL4 section since there is no MQL5 section to post it in. I am creating a simple chart overlay in MT5 to visually compare two symbols. However the chart overlay indicator does not update in real time it only updates on the close of the bar. Does anyone know what

New article How to Copy Trading from MetaTrader 5 to MetaTrader 4 is published at mql4.com: Is it possible to trade on a real MetaTrader 5 account today? How to organize such trading? The article contains the theory of these questions and the working codes used for copying trades from the MetaTrader...