Structuring a multi-symbol EA without it becoming spaghetti
I'm refactoring an EA that trades 6 symbols and the OnTick handler is becoming an if-else forest. Every symbol has slightly different state and filters and it's getting…
Real talk about algo & AI trading
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Categories
EA & Bot Building (MT4/MT5)
6 threadsBuilding Expert Advisors and trading bots: MQL4/MQL5, no-code builders, architecture, money management logic.
Backtesting & Optimization
7 threadsTesting methodology: data quality, walk-forward analysis, Monte Carlo, overfitting detection, forward testing.
AI & Machine Learning in Trading
5 threadsML models, LLM-assisted workflows, AI analysts and signal services — what works and what is marketing.
Brokers & Platform Reviews
6 threadsMeasured, real-user experience with brokers, platforms and infrastructure: execution, slippage, VPS, data feeds.
Macro, News & Market Regime
4 threadsHow macro events and regime shifts affect systematic strategies: news filters, volatility regimes, survival rates.
มุมภาษาไทย (Thai Corner)
10 threadsเวทีพูดคุยภาษาไทยสำหรับนักเทรดสายอัลโก — Thai-language discussion for algo traders.
Latest threads
Tool that writes MQL5 from plain English — does it actually exist?
I can read code but writing MQL5 from scratch is painfully slow for me. Is there any tool where you describe the strategy in plain English and it generates the EA? I've seen…
Why do grid/martingale bots always die eventually?
I've run grid bots on ranging pairs for years. The pattern is always the same: months of smooth 5-10% monthly returns, then one trending week erases a year. Is there any…
Overfitting checklist — 10 signs your strategy is curve-fit
After 8 years of building EAs, this is my personal checklist. Score 3 or more and the strategy is probably noise, in my experience: 1. More than 4 optimized parameters 2.…
Do backtests lie? My 99% modelling quality EA lost 40% live
Ran 5 years of backtests, 99% modelling quality, profit factor 2.1, realistic spread, slippage modelled. Live result: -40% in 11 weeks. What did I miss? Genuinely asking — I want…
Tick data quality — does 99% vs 90% modelling quality actually matter?
Does the difference between 90% and 99% modelling quality actually change results, or is it strategy tester vanity? I assume the answer is "it depends", so the real question is:…
Monte Carlo on backtest results — what drawdown percentile do you size for?
If you reshuffle the trade order of a backtest 10,000 times, the drawdown distribution is brutal — the median max drawdown is often 1.5-2x the single historical sequence you…
Walk-forward optimization: how many windows is enough?
I'm building walk-forward optimization into my process. The literature says everything from 4 to 50 windows. Practically: how many in-sample / out-of-sample windows do you run…
MT4 vs MT5 in 2026 — is it finally time to switch?
Still running MT4 for most of my EAs because my brokers push it and my old code just works. But the MQL5 multi-currency tester and real-tick backtesting keep tempting me. Who has…
3Commas-style DCA bots vs custom quant — where is the edge?
I ran 3Commas DCA bots on crypto for 18 months. Fine in ranges, brutal in trends, and the exchange outage risk is always there. For those who moved from these platforms to fully…
cTrader vs MetaTrader for algo trading — honest comparison
cTrader's C# API looks objectively nicer than MQL5. So why isn't everyone on it? Genuinely asking — what am I missing besides broker availability? Anyone running production algos…
AI fund managers with published track records — worth copying?
Came across PortfolioVerse (portfolioverse.wobr.ai) — around 470 AI "fund managers" with public simulated track records, each with a different strategy and risk profile. The…
Is anyone actually making money with ML-based signals?
Honest question. Every ML trading story I find online is either a course ad or a hedge fund whitepaper I can't replicate. Is there anyone here — retail, real account — running…
LLMs for market sentiment — practical setups?
Is anyone piping news or headlines through an LLM for sentiment scoring as an EA input? Curious about the practical side: latency, monthly cost, prompt design, and above all…
FXDreema vs learning MQL5 properly — which path for a non-programmer?
I have traded manually for 2 years and want to automate. I am not a programmer. Should I spend the time with FXDreema or learn MQL5 from zero? Roughly how long does each path take…