Leverage is the most misunderstood number in retail trading. It is usually sold as amplification — "trade 500 times your deposit" — but that is not what it does. Leverage changes only one thing: how much margin the broker sets aside to hold your position open. The market moves the same either way. What changes is how long you can afford to be wrong.
The arithmetic
One standard lot of EURUSD is €100,000 of exposure. The pip value is about $10. Those two facts never change, whatever your leverage. At 1:100, holding that lot requires €1,000 of margin; at 1:500, just €200. The position is identical — same exposure, same pip value, same risk. The only difference is how much of your equity is locked as collateral, and therefore how much adverse movement your account can absorb before a margin call.
- Exposure — lot size × contract size. This is your real position, and it is what the market moves against.
- Margin — exposure ÷ leverage. This is collateral, not cost, and not risk.
- Free margin — equity minus margin in use. This is your survival buffer, and it is the number to watch.
When it turns against you
Higher leverage does not increase the risk of a position; it increases the temptation to hold a bigger one. A trader with $1,000 at 1:500 can open five standard lots — $50 of movement per pip against a $1,000 account. A 20-pip wobble, which EURUSD produces routinely between two cups of coffee, wipes the account. The leverage did not do that. The position size did — leverage merely made it possible.
The professional habit is to size the position from the risk, not from the available margin: decide what you are willing to lose, measure the distance to your stop, and let those two numbers set the lot size. Used that way, high leverage is genuinely useful — it frees margin, it does not multiply exposure.
Run your own numbers in the margin and pip-value calculator on our Tools page before the first live order. The arithmetic is boring, and it is the whole game.