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Lot Size Limit

Understanding Margin-Based Lot Size Limits

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Written by Support
Updated this week

At PIP Traders Funding LLC, there is no fixed or hard cap on the number of lots you can trade. Instead, the maximum lot size is determined by factors such as:

  • Your account balance

  • The leverage assigned to your account

  • The instrument’s price (bid/ask)

  • The contract size

This approach functions similarly to a personal trading account, where your available margin defines your position size.


🧮 How to Calculate the Maximum Lot Size

To determine how many lots you can open before reaching a margin call, follow these two steps:


Step 1: Calculate the Margin Required

  • Buy Trade Formula
    Margin Required = (Contract Size / Leverage) * Ask Price

  • Sell Trade Formula
    Margin Required = (Contract Size / Leverage) * Bid Price


Step 2: Calculate the Maximum Lots You Can Open

  • Formula
    Maximum Lots = Account Balance / Margin Required


📘 Example (for Educational Purposes Only)

Let’s say you have the following account setup:

  • Account balance: $100,000

  • Leverage on indices: 10:1

  • Contract size: 10

  • US30 prices: Bid = 34369.72 / Ask = 34370.82

  • Margin level: 100%

⚠️ This example is for educational purposes only. You must calculate the values using your actual account settings and live prices.

Step 1 – Margin Required for 1 lot:
(10 / 10) * 34370.82 = $34,370.82

Step 2 – Maximum Lots:
$100,000 / 34370.82 ≈ 2.91 lots

So with a $100,000 balance and 10:1 leverage, you could buy approximately 2.91 lots of US30 before reaching a margin call, assuming no other positions are open.


⚠️ Important Reminders

  • Always use your actual account balance, leverage, and current instrument prices

  • This formula is a guideline to help you understand margin usage

  • There are no hard limits, but over-leveraging can quickly lead to drawdown violations


If you need help applying these formulas to your setup or want to confirm margin requirements for a specific instrument, contact our support team — we're here to help.

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