MT5 Grid EA with Auto Re-Anchor, Anti-Failure Logic, and Global Take Profit System

💼 Job Description (full text for MQL5 Jobs)

Project Overview

I need a MetaTrader 5 Expert Advisor (MQL5, Hedge account) that executes a grid-based anti-failure strategy.
The EA should anchor at the latest top (highest high), place BUY LIMIT orders at predefined retracement levels, and close all positions simultaneously when the average price reaches a global Take Profit target (in %).

After the global closure (TP, SL, or manual), the EA must cancel all remaining pending orders, re-anchor automatically to the latest high, and rebuild the entire grid.

⚠️ I already have a partial version of this system.
The main issue to fix is: when one trade closes at TP, other pending orders remain stuck on the chart.
I need it to close everything, reset, and start over cleanly after each cycle.

Strategy Logic

1. Anchor Logic (Top Reference)

• Anchor at the highest high of a user-defined timeframe (e.g. D1) within a defined lookback period (e.g. 10,000 bars).

• Re-anchor only if:

  1. There are no open BUY positions, and

  2. A new high ≥ (previous_anchor * (1 + ReanchorThrPct / 100)) occurs.

• While any BUY position remains open, the anchor must not change.

• After all positions close, the EA checks for a new high and rebuilds the grid.

2. Grid Placement (BUY LIMIT Orders)

• Up to 10 levels, each with:

  • LevelPctN → retracement % from anchor top

  • LotN → fixed lot size for that level

• BUY LIMIT price = AnchorHigh * (1 - LevelPctN/100)

• Prevent duplicates:
  If a pending order already exists within PriceTolPts (price tolerance in points), do not resend it.

• Orders use DeviationPts (slippage/deviation setting).

3. Global Take Profit by Average Price

• When one or more BUY positions are open (same Magic Number), calculate volume-weighted average entry price.

• Set global Take Profit = AvgPrice * (1 + TP_Percent / 100)

• All open BUY trades must share this same TP.

• If the difference between current TP and target TP > ModifyTolPts , the EA updates all positions’ TP accordingly.

4. Reset & Re-Arm Sequence
After all BUY positions are closed:

1. Cancel all pending BUY LIMITs for that Magic Number.

2. Recalculate AnchorHigh (check for new top using the rules above).

3. Rebuild the grid with the same parameters from the new anchor.

This reset must also trigger if trades close via TP, SL, or manual closure.
Use OnTradeTransaction with DEAL_ENTRY_OUT to detect when all positions are closed.