I collected some posts/links etc which may help with this situation for example:
How to Select a Deal Volume?
The question of how exactly the Subscriber's deposit will participate in trading via Signals service is one of the most critical ones. When solving this issue, we followed the already mentioned principle - providing maximum protection for each participant. As a result, we can offer a secure solution for Subscribers.
When enabling signals in the terminal and subscribing to one of them, Subscribers should select what part of the deposit is to be used when following the signals. There was an alternative solution of setting the ratio between Subscriber's and Provider's position volumes. But such a system could not guarantee the security of the Subscriber's deposit. For example, suppose that Provider's deposit is 30 000$, while Subscriber's one is 10 000$ and the ratio of 1:1 has been selected. In that case, the Signals Provider may just wait out temporary drawdown having a large volume order, while the Subscriber may lose all the funds with all his or her positions closed by Stop Out. The situation may get even worse if the Provider's balance suddenly changes (top up or withdraw), while previously specified volumes ratio remains intact.
To avoid such cases, we have decided to implement the system of percentage-based allocation of the part of a deposit, which is to be used in trading via the Signals service. This system is quite complicated as it considers deposit currencies, their conversion and leverages.
Let's consider a specific example of using the volumes management system:
Calculation of Provider's and Subscriber's position volumes ratio:
Thus under the given conditions, Provider's deal with volume of 1 lot will be copied:
- to Subscriber1 account in amount of 160% - volume of 1.6 lots
- to Subscriber2 account in amount of 7% - volume of 0.07 lots
Be careful not to confuse the percentage value of the used part of the deposit and the actual ratio of position volumes. The trading terminal allows setting the part of the deposit in percentage value. This value is used to calculate the ratio of position volumes. This data is always fixed in the log and is shown in the following way:
2012.11.12 13:33:23 Signal '1277190': percentage for volume conversion selected according to the ratio of balances and leverages, new value 160%
2012.11.12 13:27:55 Signal '1277190': signal provider has balance 15 000.00 USD, leverage 1:100; subscriber has balance 40 000.00 EUR, leverage 1:200
2012.11.12 13:27:54 Signal '1277190': money management: use 50% of deposit, equity limit: 0.00 EUR, deviation/slippage: 1.0 spreads
2012.11.12 13:33:23 Signal '1277191': percentage for volume conversion selected according to the ratio of balances and leverages, new value 7%
2012.11.12 13:27:55 Signal '1277191': signal provider has balance 15 000.00 USD, leverage 1:50; subscriber has balance 5 000.00 EUR, leverage 1:50
2012.11.12 13:27:54 Signal '1277191': money management: use 35% of deposit, equity limit: 0.00 EUR, deviation/slippage: 1.0 spreads
Forum on trading, automated trading systems and testing trading strategies
Signal Subscriber Lot Size Question
Sergey Golubev, 2017.02.02 07:42
And this small thread as well (with answers) -
and finally (just to make it shorter) -
Different Standard Lot Size between subscriber broker and signal broker
Alain Verleyen, 2014.02.15 10:18
Can you change the ratio in which a signal is subscribed to?
Alain Verleyen, 2014.02.04 13:31
You have only 2 ways to act on the calculated ratio :
If you increase your position size, you are increasing your risk at the same time, so if the signal provider has a history drawdown of say 35% and you double your lot size, then you will end up with 70% drawdown.
If by any chance (and believe me, always happens) the drawdown increase to 40-50% you will end up destroying your account, while the signal provider will continue operating normally.
Just take a moment and think about it, before make any haste decisions.
I have an account 20 times bigger than provider's account. I want to make size right for my account deposit
Then your copy ratio should be 2000% and your position size 20 times larger than signal provider, if not you have set something wrong.
The copying ratio is calculated automatically by MQL5 signal copying system.
Have you put your account's participation in signal copying to the maximum 95% in signal settings?