Forex basics · Beginner

Leverage and Margin

Leverage decides how large a position you may open. Position size decides how much you lose per pip. They are not the same thing.

Last reviewed 15 September 2026 by the MarketPro research desk · Editorial policy

In short

Leverage is the ratio between position size and the margin your broker holds against it, so 1:100 means 1,000 USD of margin controls a 100,000 USD position. Margin is collateral, not a fee, and it is released when the trade closes. Leverage amplifies losses exactly as much as gains, and a 1% adverse move on a fully leveraged 1:100 position consumes all the margin behind it.

What to remember

Leverage does not change your loss per pip. Position size does. Leverage only sets the maximum size your balance may open.
Margin is collateral held and later released, not money spent. Margin level is equity divided by used margin.
At a 50% stop-out, the broker chooses your exit, not you, and it happens when conditions are worst.
Regulators cap retail leverage near 1:30 on majors because outcomes at very high leverage were consistently poor, not because the concept is hard.

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Leverage is the ratio between the size of the position you control and the deposit your broker holds against it. Margin is that deposit. At 1:100, controlling a 100,000 USD position requires about 1,000 USD of margin, and the broker sets the rest aside as collateral. The critical point, and the one most explanations bury, is that leverage does not change how much you lose per pip. Position size does that. Leverage only decides how large a position your balance is permitted to open.

Margin is collateral, not a cost

When you open one standard lot of EUR/USD at 1.0850, the exposure is 108,500 USD. At 1:100 leverage the required margin is roughly 1,085 USD. That amount is ring-fenced inside your account while the trade is open and released when you close it. It is not a fee, and it is not spent. Your free margin is whatever equity remains available to open further positions or absorb losses. The margin calculator gives the exact figure for any pair and leverage setting.

Two positions of the same size require the same margin regardless of how confident you are in either. Margin is arithmetic about size, and nothing else.

Leverage multiplies in both directions

Leverage amplifies losses exactly as much as gains. On a fully leveraged 1:100 position, a 1% adverse move consumes 100% of the margin backing it. EUR/USD moves 1% on a very ordinary day. That is the entire mechanism by which new accounts disappear, and it needs no unusual event and no broker misconduct to happen.

Consider two traders with 2,000 USD. The first opens 1.0 lots on EUR/USD, so each pip is 10 USD and a 60-pip move against the position costs 600 USD, which is 30% of the account in one trade. The second opens 0.05 lots, so each pip is 0.50 USD and the same 60-pip move costs 30 USD, or 1.5%. Both had access to identical leverage. Only the second treated it as a ceiling rather than a target. Run your own figures through the leverage calculator to see the effective leverage a position implies.

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Margin level, margin calls and stop-outs

Equity is your balance plus or minus the floating result of open positions.
Used margin is the total collateral held against everything currently open.
Margin level is equity divided by used margin, expressed as a percentage.
Margin call is the warning threshold, commonly 100%. Stop-out is the level, often 50%, at which the broker begins closing positions for you.

Work it through. Equity 2,000 USD, one standard lot open, used margin 1,085 USD. Margin level starts at about 184%. A 50-pip loss takes equity to 1,500 USD and the margin level to 138%. At 100 pips it is 92% and you are in margin call territory. At roughly 145 pips the level reaches 50% and positions start being liquidated at whatever price is available. The trader never chose that exit. The arithmetic chose it, and it did so in the worst conditions, because that is when equity falls fastest.

Why regulators cap it

Retail leverage is capped in many jurisdictions, commonly at 1:30 on major pairs and lower on more volatile instruments, with higher limits available only to clients who qualify as professional. Those caps were not introduced because leverage is complicated. They were introduced because the outcomes for inexperienced clients at very high leverage were consistently poor, and disclosures alone did not change behaviour.

A broker advertising 1:500 or 1:1000 is not offering you an edge. It is offering you the ability to open a position large enough that ordinary market noise closes your account. The offer is legitimate; the implied suggestion about how to use it is not.

How experienced traders actually use it

They size from risk, then check that margin permits it, and usually find they are using a small fraction of what is available. The sequence is: decide the percentage of the account a single trade may cost, measure the stop distance, compute the position size from those two numbers with the position size calculator, and only then look at margin to confirm the trade fits. Margin is a constraint to satisfy, never an input to the decision.

Two habits follow from that. Keep total used margin well below your equity, so a run of losing positions does not push you towards a stop-out while you still believe in the trades. And count correlated positions as one, because three dollar-denominated longs at 1% each behave like a single 3% position when the dollar moves, a point developed in risk management.

The warning, stated plainly

Trading leveraged products carries a high risk of losing money rapidly. Leverage is the reason a market that moves half a percent a day can remove a retail account in a week, and it is the single most reliable predictor of how quickly a beginner runs out of capital. Use the smallest sizes your broker offers while you learn, treat available leverage as a limit rather than an allocation, and never trade with money you cannot afford to lose. Past performance is not indicative of future results.

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Work it through on your own position size. Nothing leaves your browser and there is no sign-up: Pip value calculator, Position size calculator, Margin calculator, Leverage calculator.

Written and reviewed by the MarketPro research desk

MarketPro is a trading-signal and trading-education app operated by Harajuku Holdings LTD (Cyprus). Our signal desk publishes and tracks every trade idea in-app, and every page here is checked against the app's live behaviour before publishing. Last reviewed 15 September 2026. How we produce signals and content · About MarketPro

FAQ

Leverage and Margin: questions

What leverage should a beginner use in forex?

The question is better asked as position size. Decide what percentage of the account one trade may cost, commonly 1% or less, and let that plus the stop distance determine your lot size. On a small account that usually produces an effective leverage of a few times equity, far below whatever the broker offers. High available leverage is a ceiling to stay well under, not a setting to use fully.

What happens when I get a margin call?

A margin call is a warning that your equity has fallen close to the collateral held against your open positions, commonly when margin level reaches 100%. You can deposit funds, close positions or reduce size. If equity keeps falling to the stop-out level, often 50%, the broker starts closing positions automatically at whatever price is available, usually in the middle of an adverse move.

Does higher leverage mean higher risk?

Only indirectly. Risk comes from position size and stop distance, and two traders with the same position size face the same loss per pip whatever leverage their accounts allow. High leverage raises risk in practice because it permits positions that a smaller account could not otherwise open, and because it makes oversized trades feel available rather than absurd.

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