Crucial Risk Warning
Financial leverage is a double-edged sword. While it enables retail participants to trade meaningful positions with modest starting capital, excessive leverage is the leading cause of retail account liquidations. Understanding the mathematical relationship between Margin, Free Margin, and Leverage is mandatory before risking real funds.
1. What Is Financial Leverage?
Leverage is a collateralized financing facility extended by your broker. With 1:30 leverage (the statutory ceiling set by the UK FCA and ASIC), you can control a $30,000 position with $1,000 of margin collateral.
2. How Required Margin Is Calculated
Required Margin = (Position Size × Market Price) / Leverage Ratio
Example: Buying 1 Standard Lot (100,000 EUR) at 1.0800 with 1:30 leverage requires ($108,000 / 30) = $3,600 margin.
3. Margin Terminology & Liquidation Thresholds
| Term | Formula | Operational Meaning |
|---|---|---|
| Equity | Balance ± Floating P/L | Real-time net liquidation value |
| Used Margin | Sum of required margins | Collateral locked in active positions |
| Free Margin | Equity – Used Margin | Capital available for new trades |
| Margin Level (%) | (Equity / Used Margin) × 100 | Account health ratio |
Regulated brokers enforce a Margin Call at 100% and automated Stop-Out Liquidation at 50% Margin Level. Always maintain a disciplined buffer using our guide to risk-to-reward ratios.