forex-scalping.com

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//+------------------------------------------------------------------+
//|                                        LiveCostMonitor_MT4.mq4   |
//+------------------------------------------------------------------+
#property copyright "Forex-Scalping.com"
#property link      "https://forex-scalping.com"
#property version   "1.00"
#property strict

extern double CommissionPerLot = 7.0; // Round-turn commission in USD

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
      // Retrieve live spread in points
      double spread_points = MarketInfo(Symbol(), MODE_SPREAD);
      
      // Retrieve the monetary value of one tick/point for 1 Standard Lot
      double tick_value = MarketInfo(Symbol(), MODE_TICKVALUE);
      
      // Calculate exact monetary cost of the spread
      double spread_cost = spread_points * tick_value;
      
      // Calculate total friction (Spread Cost + Commission)
      double total_cost = spread_cost + CommissionPerLot;
      
      // Format the dashboard
      string dashboard = "--- LIVE TRANSACTION COST (1 LOT) ---\n";
      dashboard += "Spread: " + DoubleToString(spread_points, 0) + " points\n";
      dashboard += "Spread Cost: $" + DoubleToString(spread_cost, 2) + "\n";
      dashboard += "Commission: $" + DoubleToString(CommissionPerLot, 2) + "\n";
      dashboard += "Total Friction: $" + DoubleToString(total_cost, 2) + "\n";
      dashboard += "-------------------------------------";
      
      // Display directly on the chart using Comment
      Comment(dashboard);
  }

Code: Select all

//@version=5
// 1. COMMISSION SETUP: 
// A $7.00 round-turn commission on a 100,000 standard lot equates to $3.50 per side.
// In percentage terms: $3.50 / $100,000 = 0.0035%.
// 2. SLIPPAGE SETUP:
// Simulating a tight Raw ECN spread (e.g., 0.1 pips). On a 5-decimal broker, this is 1 tick.
strategy("ECN Raw Spread Backtester & Monitor", 
     overlay=true,
     commission_type=strategy.commission.percent,
     commission_value=0.0035, 
     slippage=1)

// --- DASHBOARD DISPLAY ---
// Renders a visual cost breakdown in the top right corner
var table costTable = table.new(position.top_right, 2, 4, border_width = 1, border_color=color.new(color.gray, 50))

if barstate.islast
    // Mathematical constants for 1 Standard Lot of EUR/USD
    float lot_size = 100000
    float commission_rt = 7.00
    float assumed_spread_pips = 0.1
    float pip_value = 10.00 // Value of 1 pip for 1 standard lot
    
    float spread_cost = assumed_spread_pips * pip_value
    float total_friction = spread_cost + commission_rt
    
    // Draw table headers and data
    table.cell(costTable, 0, 0, "--- RAW ECN COST (1 LOT) ---", text_color=color.white, bgcolor=color.new(color.blue, 30), text_halign=text.align_center, colspan=2)
    
    table.cell(costTable, 0, 1, "Spread Cost (" + str.tostring(assumed_spread_pips) + " pips)", text_color=color.white, bgcolor=color.new(color.gray, 80), text_halign=text.align_left)
    table.cell(costTable, 1, 1, "$" + str.tostring(spread_cost, "#.##"), text_color=color.yellow, bgcolor=color.new(color.gray, 80), text_halign=text.align_right)
    
    table.cell(costTable, 0, 2, "Commission (Round-Turn)", text_color=color.white, bgcolor=color.new(color.gray, 80), text_halign=text.align_left)
    table.cell(costTable, 1, 2, "$" + str.tostring(commission_rt, "#.##"), text_color=color.yellow, bgcolor=color.new(color.gray, 80), text_halign=text.align_right)
    
    table.cell(costTable, 0, 3, "Total Execution Friction", text_color=color.white, bgcolor=color.new(color.black, 0), text_halign=text.align_left)
    table.cell(costTable, 1, 3, "$" + str.tostring(total_friction, "#.##"), text_color=color.red, bgcolor=color.new(color.black, 0), text_halign=text.align_right)

// --- DUMMY STRATEGY LOGIC FOR TESTING ---
// Simple Moving Average crossover to trigger trades and calculate real costs in the Strategy Tester
fastSMA = ta.sma(close, 14)
slowSMA = ta.sma(close, 28)

if ta.crossover(fastSMA, slowSMA)
    strategy.entry("Long", strategy.long, qty=100000) // Execute 1 Standard Lot

if ta.crossunder(fastSMA, slowSMA)
    strategy.close("Long")