In the event that money in your account falls below margin requirements
(usable margin), your broker will close some or all open positions. This
prevents your account from falling into a negative balance, even in a highly
volatile, fast moving market.
Example #1
Let’s say you open a regular Forex account with $2,000 (not a smart idea). You
open 1 standard lot (100,000 units) of the EUR/USD, with a margin requirement
of $1000. Usable Margin is the money available to open new positions or sustain
trading losses. Since you started with $2,000, your usable margin is $2,000.
But when you opened 1 lot, which requires a margin requirement of $1,000, your
usable margin is now $1,000.
If your losses exceed your usable margin of $1,000 you will get a
margin call.
Example #2
Let’s say you open a regular Forex account with $10,000. You open 1 standard
lot of the EUR/USD, with a margin requirement is $1000. Remember, usable margin
is the money you have available to open new positions or sustain trading
losses. So prior to opening 1 lot, you have a usable margin of $10,000. After
you open the trade, you now have $9,000 usable margin and $1,000 of used
margin.
If your losses exceed your usable margin of $9,000, you will get a margin
call.
Make sure you know the difference between
usable margin and
used margin.
If the equity (the value of your account) falls below your usable margin due
to trading losses, you will either have to deposit more money or your broker
will close your position to limit your risk and his risk. As a result, you can
never lose more than you deposit.
If you are going to trade on a margin account, it’s vital that you know what
your broker’s policies are on margin accounts.
You should also know that most brokers require a higher margin during the
weekends. This may take the form of 1% margin during the week and if you intend
to hold the position over the weekend it may rise to 2% or higher.
The topic of margin is a touchy subject and some argue that too much margin
is dangerous. It all depends on the individual. The important thing to remember
is that you thoroughly understand your broker’s policies regarding margin and
that you understand and are comfortable with the risks involved.
Some brokers describe their leveraging in terms of a leverage ratio and
other in terms of a margin percentage. The simple relationship between the two
terms is:
Leverage
= 100 / Margin Percent
Margin
Percent = 100 / Leverage
Leverage is conventionally displayed as a ratio, such 100:1 or 200:1.