Futures Sizing Calculator (Greg.Trading)

📐 Futures Sizing Calculator

by Greg.Trading

🔍 Overview

The Futures Sizing Calculator is a visual risk-management tool built for futures traders who demand precision.
It allows you to define your entry, stop-loss, and maximum dollar risk, then instantly calculates optimal contract sizing—directly on the chart.

No spreadsheets. No mental math. Just clear, actionable risk data.

🎯 What This Indicator Does

This indicator combines trade visualization with dynamic position sizing:

✔ Draws Entry and Stop-Loss levels on the chart
✔ Highlights the risk area between entry and stop
✔ Automatically detects LONG or SHORT direction
✔ Calculates stop distance in points
✔ Determines contract size for multiple futures
✔ Displays exact dollar risk per contract size
✔ Updates instantly as prices change

📊 Supported Contracts

The calculator currently supports the most commonly traded CME micro futures:

MNQ – Micro Nasdaq

MES – Micro S&P 500

MGC – Micro Gold

Each contract is calculated using its true point value for accurate risk sizing.

🧮 How the Calculations Work (Conceptually)

The script uses a fixed-risk position sizing model, commonly used by professional traders:

1️⃣ You define a maximum dollar risk per trade
2️⃣ The script measures the distance between Entry and Stop
3️⃣ That distance is multiplied by each contract’s point value
4️⃣ Contract size is calculated to stay within your risk limit

You are shown two sizing options:

Conservative → rounded down (risk stays below limit)

Aggressive → rounded up (risk slightly exceeds limit)

This lets you choose the exposure that best fits your trading plan.

🧭 Visual Trade Mapping

To improve clarity and execution speed, the indicator provides:

🟩 Green / Red dotted lines for Entry and Stop
📦 A transparent risk box between those levels
🔁 A centered LONG or SHORT label inside the risk area
📌 A floating panel displaying all sizing calculations

Everything is placed where your eyes already are—on the chart.

⚙️ How to Use

Add the indicator to any futures chart

Set your Account Size and Risk Amount

Enter your Entry price

Enter your Stop-Loss price

Review:

Trade direction

Risk box

Contract sizing panel

Adjust entry or stop at any time and the calculations update instantly.

⭐ Why This Indicator Is Different

Unlike basic sizing calculators or static tools, this indicator:

✅ Is fully chart-based
✅ Shows real dollar risk, not estimates
✅ Supports multiple contracts at once
✅ Combines numbers with visual confirmation
✅ Is built for live execution and planning

It’s designed to be used during real trades, not just before them.

⚠️ Important Notes

• This is a risk-management tool, not a trading strategy
• It does not generate buy or sell signals
• Always confirm calculations align with your broker’s specifications