One of the crucial delicate areas in any MT5 commerce copier is lot administration — how the slave determines commerce quantity in proportion to the grasp.
In my newest copier construct, I carried out a number of adjustable parameters to offer merchants full management over threat and place sizing.
Right here’s a fast abstract of how the system handles lot scaling:
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Steadiness Ratio Management
When UseBalanceRatio = true, the copier routinely compares the balances of grasp and slave accounts.
This ensures that if a slave has half the steadiness of the grasp, it can open trades at half the amount — preserving threat proportional. -
Lot Multiplier (LotMultiplier)
A versatile solution to scale trades.
For example, with a multiplier of 0.6 , a 1.00-lot commerce on the grasp turns into a 0.60-lot commerce on the slave.
This easy management is commonly sufficient for many mirror setups. -
Mounted Lot Possibility (FixedLotSize)
For individuals who favor full consistency, you’ll be able to disable automated scaling and use a static lot measurement.
When set to a non-zero worth, all copied trades use that lot, no matter grasp steadiness or multiplier. -
Most Lot Restrict (MaxLotSize)
To forestall unintentional over-sizing, a security restrict is utilized in order that no commerce exceeds the required most quantity. -
Free Margin Safety
If FreeMarginPercent is outlined, the copier checks accessible margin earlier than inserting any commerce — guaranteeing that solely trades inside secure margin limits are copied.
This mixture of controls offers customers each flexibility and security, whether or not they run an identical accounts or mirror trades to smaller threat accounts.
I’ve discovered that balance-based scaling mixed with an affordable multiplier supplies essentially the most secure efficiency over time.
If you happen to’ve examined various strategies for balancing threat between accounts, I’d be glad to listen to about your experiences.
You may obtain the newest copier model from the hyperlink beneath.

