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Margin Trading 101

Trading Scenario: Margin Call Level at 100% and Stop Out Level at 50%

3 min readLesson 40 of 45
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Understanding Margin Call and Stop Out Levels

Retail forex brokers have different margin policies. Some use just a Margin Call, while others have both a Margin Call Level and a Stop Out Level.

Previously, we explored a scenario with a broker that only issued a Margin Call. Now, let’s walk through a situation where your broker sets:

  • Margin Call Level: 100%
  • Stop Out Level: 50%

Let’s see what happens when a trade moves against you.

Step 1: Funding Your Trading Account

You deposit $10,000 into your trading account.

Account Summary:

BalanceEquityUsed MarginFree MarginMargin Level
$10,000$10,000$0$10,000

Step 2: Open a Trade and Calculate Margin

You decide to go long GBP/USD at 1.30000, opening 1 standard lot (100,000 units). Your broker requires 5% margin.

  • Notional Value: £100,000 × 1.3000 = $130,000
  • Required Margin: $130,000 × 5% = $6,500

Since this is your only open trade:

  • Used Margin = Required Margin = $6,500

Step 3: Initial Trade Conditions

The price hasn’t changed, so your Floating P/L = $0.

  • Equity = Balance + Floating P/L = $10,000 + $0 = $10,000
  • Free Margin = Equity – Used Margin = $10,000 – $6,500 = $3,500
  • Margin Level = (Equity / Used Margin) × 100 = (10,000 / 6,500) × 100 = 154%

Updated Account Summary:

FX PairPosition SizeEntryPriceEquityUsed MarginFree MarginMargin LevelFloating P/L
GBP/USD100,0001.300001.30000$10,000$6,500$3,500154%$0

Price Drops 400 Pips

GBP/USD falls to 1.26000. Let’s see the impact:

1. Recalculate Margin

  • New Notional Value = £100,000 × 1.26000 = $126,000
  • Required Margin = $126,000 × 5% = $6,300

2. Floating Loss

  • Loss = (1.26000 – 1.30000) × 100,000 = -400 pips
  • Floating P/L = -400 × $10 = – $4,000

3. Equity and Margin Status

  • Equity = $10,000 – $4,000 = $6,000
  • Free Margin = $6,000 – $6,300 = –$300
  • Margin Level = ($6,000 / $6,300) × 100 = 95%

You’ve hit the Margin Call Level! Your broker will issue a warning. Your position stays open, but you can’t open new trades unless your Margin Level climbs back above 100%.

Updated Account Summary:

FX PairEntryPriceEquityUsed MarginFree MarginMargin LevelFloating P/L
GBP/USD1.300001.26000$6,000$6,300-$30095%-$4,000

Price Drops Another 290 Pips

GBP/USD falls further to 1.23100.

1. New Margin Calculations

  • Notional Value = £100,000 × 1.23100 = $123,100
  • Required Margin = $123,100 × 5% = $6,155

2. Updated Floating Loss

  • Total pip loss = 690 pips
  • Floating P/L = -690 × $10 = – $6,900

3. Account Status

  • Equity = $10,000 – $6,900 = $3,100
  • Free Margin = $3,100 – $6,155 = –$3,055
  • Margin Level = ($3,100 / $6,155) × 100 = 50%

You’ve now hit the Stop Out Level!

Stop Out Triggered

Because your Margin Level = 50%, the broker will automatically close your position at market price.

  • Your Floating Loss becomes Realized.
  • Your Used Margin is released.
  • Balance is updated to $3,100.

With no trades open:

BalanceEquityFree MarginUsed MarginMargin Level
$3,100$3,100$3,100$0

You’ve lost 69% of your account.

Loss % = ((3,100 – 10,000) / 10,000) × 100 = -69%

Takeaway

Hitting a Stop Out means the market closed your position to prevent further loss. It’s a harsh reminder of the risks of trading with high leverage.

In the next lesson, we’ll explore what happens if you try to trade forex with just $100 in your account. Spoiler: it’s risky business.

Knowledge Check

1. In a scenario with a 100% Margin Call Level and 50% Stop Out Level, at what Margin Level does automatic liquidation begin?