Arnold Holm
Arnold Holm
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MQL4/MQL5 & Pine Script Developer en StratCoreAlpha
I develop MQL4/MQL5 Expert Advisors, indicators, dashboards and trade-management tools from explicit written rules. I also convert authorized TradingView/Pine Script logic to MetaTrader 5 and turn rough ideas into testable technical specifications.

Public proof
This profile includes five published MT5 products and four official open-source CodeBase diagnostics. The newest is MT5 EA Acceptance Harness (#76039): a non-trading script with eight deterministic entry-state fixtures, 0-error/0-warning compilation and an isolated 8/8 MT5 runtime pass. MT5 Cash Risk Probe (#75981) provides bounded read-only cash-risk sizing. MT5 Broker Environment Report (#75871) captures non-sensitive broker/symbol constraints; MT5 Order Preflight (#75874) checks a hypothetical order against volume, tick-size, stop-distance and filling rules. Other public work includes a multi-symbol wick scanner, risk and spread monitors, an RSI multi-timeframe dashboard and a one-click trade panel.

Services
- One reproducible MQL4/MQL5 bug fix or bounded modification
- Custom MT4/MT5 EAs from written rules
- Indicators, dashboards, alerts and trade managers
- Authorized Pine Script to MT5 conversion
- Risk sizing, daily limits, break-even, partial-close and trailing logic
- Strategy formalization and acceptance-test specifications

Process
1. Freeze platform/build, entry, exit, risk, timing and edge cases.
2. Approve a short scope with should-happen and should-not-happen examples.
3. Implement and test against that behavior.
4. Deliver editable source, compiled build, documented inputs and setup notes.

Entry pricing
- Small bug or bounded modification: 30-80 EUR
- Simple indicator or trade-management component: 70-160 EUR
- Simple custom EA or conversion: 150-300 EUR
- Multi-symbol, multi-timeframe or infrastructure work: fixed quote after specification

I do not guarantee profit, returns, drawdown or prop-firm results. I implement the approved behavior transparently, work only with legitimately owned editable source and never decompile protected EX4/EX5 files. Send the platform, source or written rules, symbol/timeframe and one positive plus one negative example for a bounded price and timeline.
Arnold Holm
Ha publicado el código MT5 EA Acceptance Harness
Deterministic synthetic acceptance checks for MT5 EA entry-state logic, with no market, account or order access.
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Arnold Holm
Ha publicado el código MT5 Cash Risk Probe - Read-Only Sizing
Read-only MT5 script that estimates stop-distance cash loss in account currency, reserves explicit cash costs and floors volume to the broker grid. It never sends or modifies an order.
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Arnold Holm
Arnold Holm
Daily drawdown is not one MT5 metric. Before coding a dashboard, freeze four decisions:

1. Day boundary: broker-server date or a named timezone.
2. Reference: start-of-day balance, start-of-day equity, or intraday equity high-water.
3. P/L: realized only or realized plus current floating result.
4. Restart behavior: reconstruct the reference from deal history or persist the first valid observation and disclose the limitation.

For a high-water definition, the testable formula is DrawdownAmount = max(0, PeakEquity - CurrentEquity), and DrawdownPct = 100 * DrawdownAmount / PeakEquity with a zero guard. The peak must only move upward during the selected day and must survive chart reloads and terminal restarts.

Useful acceptance cases are more important than a pretty panel: one realized win/loss, one open position, one threshold crossing without duplicate alerts, one recovery and recross, and one restart. If two dashboards use different choices above, both can compile cleanly while reporting different numbers.
Arnold Holm
Ha publicado el código MT5 Order Preflight - Read-Only Validation
Checks a hypothetical MT5 market or pending order against current symbol, volume, tick-size, stop-distance and filling rules without sending a trade.
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Arnold Holm
Ha publicado el código MT5 Broker Environment Report
Prints a privacy-conscious snapshot of the current MT5 broker, account, symbol and terminal environment to the Experts log for diagnostics and support.
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Arnold Holm
Arnold Holm
Five questions I freeze before coding any Expert Advisor

1. Signal timing: current tick, current candle, or last closed candle? Multi-timeframe rules must state which bar is final.
2. Position model: one position, pyramiding, hedging or netting? Define symbol, direction, Magic Number and manual-trade filters.
3. Risk units: fixed lots, percent risk, money, points or ATR? Define rounding, minimum volume and what happens when a stop is invalid.
4. Broker behavior: digits, stop/freeze levels, filling mode, spread limits, retry rules and trading-session boundaries.
5. Acceptance examples: provide at least one should-trade case, one should-not-trade case and the expected SL/TP calculation.

A phrase such as “enter when trend is strong” cannot be tested. A rule such as “after the H1 candle closes above EMA 50, enter on the next tick only if spread is below X points and no matching position exists” can be implemented and verified.

Freezing these details before development prevents most scope disputes and makes backtests reproducible. This same checklist works for indicators, dashboards, alerts and Pine-to-MT5 conversions.
Arnold Holm
Arnold Holm
I am opening a few fixed-scope slots for MQL4/MQL5 work: one reproducible EA or indicator bug, one bounded feature such as risk sizing, break-even, partial close or a session filter, one simple MT5 EA from explicit rules, or one Pine Script-to-MT5 conversion.

For an accurate quote, send the platform, editable source or written rules, symbol/timeframe, current versus expected behavior and chart examples.

I work specification-first and deliver source code, documented inputs and a verification checklist. I do not decompile protected files or promise trading results.
Arnold Holm
Arnold Holm
I am opening a few fixed-scope slots for small MQL4/MQL5 work:

- one reproducible EA or indicator bug
- one bounded feature such as risk sizing, break-even, partial close or a session filter
- one simple MT5 EA from explicit entry and exit rules
- one TradingView/Pine Script behavior map or MT5 conversion

The fastest way to get an accurate quote is to provide the platform, editable source or written rules, symbol/timeframe, current versus expected behavior and one or two chart examples.

I work specification-first and deliver source code, documented inputs and a verification checklist. I do not decompile protected files and do not promise profit, returns or prop-firm results.

My profile contains five published MT5 products and several public CodeBase tools that show the type of dashboards, risk controls, indicators and trade management I build.
Arnold Holm Ha publicado el producto

El EA «NNFX D1 Aroon Kijun ATR» es una plantilla de estrategia automatizada para MetaTrader 5 que implementa un flujo de trabajo en el marco temporal diario basado en reglas, con gestión de riesgos basada en el ATR, entradas estructuradas y salidas disciplinadas. El Asesor Experto está diseñado para operar al cierre de la jornada y procesa las señales únicamente al cierre de cada nueva vela diaria. El EA utiliza una línea de referencia (Kijun), una señal de confirmación (Aroon) y un filtro de

Arnold Holm Ha publicado el producto

Calculadora de superficie de parcela con función de arrastrar y soltar Descripción general La calculadora de tamaño de lote «Arrastrar y soltar» es una herramienta de gestión de riesgo y cálculo del tamaño de la posición basada en gráficos para MetaTrader 5. Calcula el tamaño de lote adecuado en función del saldo de su cuenta (o capital), el porcentaje de riesgo seleccionado y la distancia del stop-loss definida por una única línea horizontal en el gráfico. Un panel compacto integrado en el

Arnold Holm Ha publicado el producto

Daily Loss Guardian de Prop Firm Prop Firm Daily Loss Guardian es una sencilla herramienta de gestión de riesgos para MetaTrader 5. Muestra en el gráfico un panel de estado tipo «semáforo» que indica claramente el nivel de pérdidas diarias y, opcionalmente, puede aplicar un stop obligatorio cerrando las posiciones recién abiertas una vez que se alcanza un nivel crítico de caída. La herramienta está diseñada para operadores que desean saber de forma inmediata y visual cuándo deben reducir el

Arnold Holm Ha publicado el producto

El «Renko Velocity Heatmap» es un indicador que se muestra en una ventana independiente y que convierte las series de precios estándar basadas en el tiempo en bloques al estilo Renko, coloreándolos en función de la velocidad del impulso. Cada bloque representa un tamaño fijo de casilla Renko, mientras que la intensidad del color refleja la rapidez con la que se formó el bloque en relación con el tiempo medio de formación reciente. Los movimientos lentos aparecen apagados o neutros, mientras que

Arnold Holm Ha publicado el producto

Indicador de superposición Renko transparente Descripción general El indicador de superposición Renko transparente muestra los bloques Renko directamente sobre el gráfico de precios principal como una superposición semitransparente. A diferencia de los gráficos Renko tradicionales, que requieren una ventana independiente fuera de línea, este indicador permite a los operadores visualizar simultáneamente la evolución del precio mediante velas japonesas estándar y la estructura Renko en el mismo

Arnold Holm
Ha publicado el código Session Daylight Gradient — Ambient Forex Session Overlay
A lightweight chart overlay that paints a smooth “daylight” gradient across Pacific, Asia, London, and New York sessions—plus optional session separators, event labels, and “sunray” highlights for scheduled news. Includes UTC/Broker/PC time modes and a manual DST shift.
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Arnold Holm
Ha publicado el código News Spread Risk Dashboard (Spike and Gap Monitor)
A compact on-chart dashboard that monitors live spread behavior, tracks rolling Min/Max/Avg, and warns on abnormal spread spikes (news, low liquidity, rollover) using adaptive or fixed thresholds with optional alerts.
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Arnold Holm
Ha publicado el código Wick Rejection Scanner Dashboard (Multi-Symbol / Multi-TF)
Scan multiple symbols and timeframes for wick-based rejection candles and display the latest signals in a clean on-chart dashboard with strength scoring, signal age, optional markers, and alerts.
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Arnold Holm
Ha publicado el código PropGuard MT5 Daily Loss and Max Drawdown Dead-Line Visualizer (Dashboard and Line)
A chart-based risk monitor for prop-firm style rules: draws a live “Dead-Line” price level showing where your Daily Loss Limit or Overall Max Drawdown would be violated, based on equity, open exposure, and optional trailing drawdown.
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Arnold Holm
Ha publicado el código RSI Dashboard - Multi-Timeframe (M15/H1/H4/D1) + Progress Bars
A modern, draggable dashboard that displays real-time RSI values for M15, H1, H4, and D1 timeframes simultaneously. Features color-coded progress bars to instantly identify overbought and oversold conditions across multiple periods without switching charts.
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Arnold Holm
Ha publicado el código Modern Dark-Mode Trade Panel – One-Click Execution
A professional, dark-themed trading panel for fast execution. Features one-click Buy/Sell buttons, automatic pip calculation, and persistent settings memory for every symbol.
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Arnold Holm
Se ha registrado en MQL5.community