# Auto lot size multiplier

* `1.0` = No change (default)
* `0.5` = Use half the calculated lot size
* `2.0` = Double the calculated lot size
* **Any positive value** = Multiply the calculated lot size by this value

{% hint style="info" %}
For example if the EA calculates an auto lot size of **0.04**:

* **Multiplier set to 1.0** → `0.04 × 1.0 = 0.04`\
   ✅ *Default auto-calculated volume will be used*
* **Multiplier set to 0.5** → `0.04 × 0.5 = 0.02`\
   🟡 A smaller volume will be used (less exposure, but recovery may be slower)
* **Multiplier set to 1.5** → `0.04 × 1.5 = 0.06`\
   🟠 *A larger volume will be used (more risk)*
* **Multiplier set to 10.0** → `0.04 × 10 = 0.40`\
   🔴 *A huge volume will be used —* extremely high risk

If the final result is below the minimum allowed lot size (usually 0.01), then **0.01** will be used instead.

This multiplier only takes effect when both [**Fixed Lot Size**](/smartchoise-manual/options/custom-lot-size-settings/fixed-lot-size.md) and [**Percentage of Deposit to Risk per Transaction**](/smartchoise-manual/options/custom-lot-size-settings/fixed-lot-size-based-on-of-balance.md) are set to **0**. If either of these is set, the multiplier will be ignored.
{% endhint %}

{% hint style="danger" %}

* **Higher Multiplier**: Leads to larger trade sizes, increasing both potential profits and drawdown risk.
* **Lower Multiplier**: Results in smaller trade sizes, reducing risk but also potential profits.

Any value **above 1.0 increases risk geometrically**, not linearly:

* For example, a multiplier of 2.0 doesn't just double your risk — it can lead to **more than twice the drawdown**, especially during volatile or prolonged recovery phases.
* This compounding effect can result in rapid losses if not managed properly.
* Using a **lower multiplier** (e.g., 0.5 or 0.25) reduces volume, but:
  * It can make **profit and recovery targets harder to reach**.
  * It might cause the EA to stay in drawdown longer, increasing the chance of extended exposure.
  * It's **not always safer** if the volume becomes too small to effectively recover
    {% endhint %}

🧠 Think of the multiplier like a **volume knob** — same strategy, just louder or softer depending on how much you're willing to risk and how fast you want to see results.


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