technical

How to Write a Custom Technical Indicator in MQL5

How to Write a Custom Technical Indicator in MQL5

Custom indicators are one of the most practical ways to turn a trading idea into a repeatable, visual tool. While MetaTrader 5 ships with dozens of built-in indicators, sooner or later you will want something more specific: a specialized filter, a custom oscillator, a volatility regime detector, a bespoke “signal line,” or simply a cleaner visualization of existing information. This article explains—thoroughly and practically—how to write custom technical indicators in MQL5, with multiple working examples, performance patterns, and tables you can use as a reference. 1. What Makes an MQL5 Indicator Different From an Expert Advisor? Both indicators and Expert…
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Architecting the ideal forex trading system: a technical guide

Architecting the ideal forex trading system: a technical guide

Designing a durable Forex trading bot is equal parts economics, statistics, market microstructure, and software engineering—and it fails if any one of those pillars is weak. “Durable” means the system remains profitable and controllable across regime shifts (risk-on/off, volatility spikes, liquidity droughts), survives realistic costs (spreads, swaps, slippage, last-look), and resists model drift and data pathologies. It also means decisions are explainable, risks are bounded, and operations are resilient to outages and bad ticks. This article extends the prior framework by shifting from “what to build” to “how it survives.” We’ll translate economic hypotheses into testable signals, enforce honest validation…
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