# Static used margin

## Overview

**Static Used Margin** is an optional **fixed margin amount** that can be applied to a trading position **in addition to the standard margin**.

This value is stored **per order** and **per position** and is included in the **account’s total used margin calculation**.

If not specified, **static used margin defaults to `0`**.

---

# Business Purpose

Static used margin exists to support cases where **standard leverage-based margin alone is insufficient**.

<table id="bkmrk-purpose-description-"><thead><tr><th>Purpose</th><th>Description</th></tr></thead><tbody><tr><td>**Regulatory requirements**</td><td>Some jurisdictions require an additional fixed margin per position regardless of leverage.</td></tr><tr><td>**External risk rules**</td><td>Liquidity providers or internal risk engines may require an additional fixed margin component.</td></tr><tr><td>**Product-specific margin models**</td><td>Certain trading products may require a minimum margin per position.</td></tr><tr><td>**Operational risk control**</td><td>Allows manual or automated systems to increase margin requirements for specific trades.</td></tr></tbody></table>

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# Impact on Client Accounts

When static used margin is applied:

- **Used margin increases**
- **Free margin decreases**
- **Margin level decreases**
- **Margin call / liquidation may trigger earlier**

This provides **additional risk protection** for the platform.

---

# Margin Calculation

### Position Used Margin Formula

```
Used Margin = Leverage Margin + Static Used Margin
```

Where:

### Leverage Margin

```
Leverage Margin = Position Value ÷ Leverage
```

Example:

<table id="bkmrk-parameter-value-posi"><thead><tr><th>Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Position Value</td><td>€10,000</td></tr><tr><td>Leverage</td><td>1:10</td></tr><tr><td>Leverage Margin</td><td>€1,000</td></tr><tr><td>Static Used Margin</td><td>€200</td></tr></tbody></table>

Result:

```
Used Margin = 1000 + 200 = €1,200
```

# Defaults

<table id="bkmrk-field-default-static"><thead><tr><th>Field</th><th>Default</th></tr></thead><tbody><tr><td>static\_used\_margin</td><td>0</td></tr></tbody></table>

If not set:

```
Used Margin = Leverage Margin

```

---

# Example Scenario

A broker introduces **minimum margin per trade = €500**.

Trade parameters:

<table id="bkmrk-parameter-value-posi-1"><thead><tr><th>Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Position Value</td><td>€4,000</td></tr><tr><td>Leverage</td><td>1:20</td></tr></tbody></table>

Leverage Margin:

```
4000 / 20 = €200
```

Minimum margin required = €500

Static margin applied:

```
static_used_margin = 300
```

Final used margin:

```
200 + 300 = €500
```

---

# Summary

<table id="bkmrk-attribute-descriptio"><thead><tr><th>Attribute</th><th>Description</th></tr></thead><tbody><tr><td>Type</td><td>Fixed additional margin</td></tr><tr><td>Level</td><td>Per position</td></tr><tr><td>Default</td><td>0</td></tr><tr><td>Purpose</td><td>Regulatory / risk / product margin rules</td></tr><tr><td>Effect</td><td>Increases used margin and reduces free margin</td></tr></tbody></table>