For example,
You deposit $1,000 Euros. Broker offers 1:100 leverage.
You want to open a $90,000 EURUSD position.
To initiate that trade, there is something called margin requirement.
There is a formula for calculating margin requirement, which is
Margin = Lot size / Leverage
= 90,000 / 100
= 900
Thus, margin requirement to initiate that $90,000 EURUSD trade is $900 euros.
This $900 Euros will be set aside from your account equity balance. This means you only have $100 Euros remaining from your equity balance to facilitate drawdown. You will only get back that $900 Euros when you closed the EURUSD trade.
Now, Let’s assume the value of 1 pip for opening a
$90,000 EURUSD position to be $9.
Do note that you only have $100 euros for drawdown,
When your trade moves against you by 5 pip, you would have lost
5 x $9 = $45 .
Thus, your remaining available equity balance for drawdown would be
$100 - $45 = $55.
What if your trade moves against you by 11.2 pip instead of 5 pip?
You would have lost
11.2 x $9 = $100.8
Now, in this instance, you would have exceeded your available margin for drawdown.
So what happens?
Different brokers have different margin requirements.
In the most likely scenario, your $90,000 EURUSD trade will be terminated instantly,
and you will get back your $900 euros which was set aside to initiate your trade.
So in summary,
- your $90,000 EURUSD trade was closed out due to insufficient margin balance.
- your remaining account equity balance would be $900 .
Now, back to your initial question, what if you open a $100,000 EURUSD position?
I’m not really sure if your broker would even allow that to happen in the 1st place.
Margin requirement for opening a $100,000 EURUSD trade position is
Margin = 100,000 / 100
= 1,000
Assuming, your broker allows it. Your remaining margin balance
for drawdown is ZERO. The trade would have to be close out immediately.
A commission fee would probably be deducted from your account equity balance
for initiating that trade.