Margin Calls: The Price of Overleveraging
Let’s say you’re a retired British spy, now living the good life trading forex. You open a mini account and deposit $10,000.
When you log in, you’ll see $10,000 in your Equity, with $0 in Used Margin and the full $10,000 as Usable Margin.
Quick Formula:
Usable Margin = Equity – Used Margin
So, it’s your Equity, not Balance, that determines how much usable margin you have and whether you're close to a margin call.
As long as Equity > Used Margin, you’re in the clear.
But once Equity ≤ Used Margin, boom—you hit a margin call.
Example: How Margin Can Crush You
Your broker requires a 1% margin, so opening 1 mini lot of EUR/USD (worth $10,000) will tie up $100 in margin.
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Equity = $10,000
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Used Margin = $100
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Usable Margin = $9,900
Now let’s say you get a little too confident and open 79 more lots, for a total of 80 mini lots.
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Each lot requires $100 in margin
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Used Margin = $8,000
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Usable Margin = $2,000
You’re now heavily leveraged.
If EUR/USD rises, you’ll make a big profit. But if it falls, even slightly… things go south fast.
The Margin Call Trigger
Every pip in a mini lot is worth $1.
With 80 lots, that’s $80 per pip.
So if EUR/USD moves just 25 pips against you:
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$80 x 25 = $2,000 loss
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Your Equity drops from $10,000 to $8,000
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Your Usable Margin = $0
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Margin Call triggered!
And remember, we haven’t even included the spread yet.
Spread Makes It Worse
Let’s assume a 3-pip spread on EUR/USD.
That means EUR/USD only needs to move 22 pips against you, not 25, before a margin call hits.
Yes—you could lose $2,000 in seconds, especially during high-impact news releases.
Most New Traders Don’t Even Start With $10K
You had $10,000, so you survived a 25-pip move (barely).
If you only had $9,000, you’d be wiped out with just a 10-pip move (including spread).
That’s how fast overleveraging can destroy an account.
The Lesson?
Don’t let leverage become your downfall.
If you don’t fully understand margin and leverage, you’re not ready to trade live.
Take it seriously. Know the math. And never trade more than your account can realistically support.