forex-scalping.com

Margin on a 5 lot EURUSD position at 1:100 and at 1:30

Prop accounts often come with leverage settings that differ from retail, and it changes how many positions you can hold at once.

Margin for a forex position is the notional value divided by the leverage. One lot of EURUSD is 100,000 euros. At EURUSD 1.0800 that's $108,000.

At 1:100 leverage, one lot needs $1,080 margin. Five lots need $5,400.
At 1:30, one lot needs $3,600. Five lots need $18,000.

On a $50,000 account, five lots at 1:100 uses about 11% of the balance as margin. At 1:30 it's 36%. That's still fine for a single trade, but if you add a second five lot position on GBPUSD at 1:30, at GBPUSD 1.27 that's another $21,167, and you're now using 78% of the account for margin.

For scalpers with tight stops, position sizes can get large. A 0.5% risk on a $50,000 account with a 4 pip stop is $250 divided by $40 per lot, so 6.25 lots. At 1:30 that's $22,500 of margin for a single trade.

Some firms set leverage lower on certain instruments, like 1:20 on gold or 1:10 on indices. If you're scaling into positions or holding two pairs together, margin can become the limit before risk does.

I'd check the margin column in the platform before the first trade on any new account.

If margin runs out, the broker rejects new orders with a not enough money error even if the risk is small. On MT5 the free margin check is done before the order is sent. An EA that doesn't check free margin will keep trying and filling the log with errors. Adding a free margin check before each order, using OrderCalcMargin, means the EA skips trades cleanly instead of failing. Code that checks first and logs the skip also makes it obvious when margin rather than the setup was the reason a trade didn't happen. That's useful when reviewing why a good setup was missed on a busy day.

Margin also matters for the stop-out level. Most prop accounts have a margin call level and a stop-out level, for example 100% and 50% margin level. If equity drops to 50% of margin used, positions are closed automatically. With tight stops and normal size this is rarely the issue, since the daily loss limit hits first, but with several positions and lower leverage it can happen. The stop-out level also matters for trades with wide stops, where the margin level falls further before the stop is reached. If the stop-out comes first, the position is closed at a price you didn't choose. On a prop account that might also count as a breach.

Leverage settings sometimes differ between the challenge and funded stages. A challenge at 1:100 and a funded account at 1:30 means your normal sizes might not fit when funded. Check the funded account specs before you pass, because changing your sizing habits at the moment the account becomes real is not ideal. Ask the firm or check the funded specs page before buying the challenge, since it's hard to change after. If the funded account has lower leverage, practise with smaller position sizes during the challenge so the change isn't a shock. That way the habits you build carry over cleanly.

For crosses the margin is calculated on the base currency converted to account currency. One lot of GBPJPY is 100,000 pounds, so at GBPUSD 1.27 it's $127,000 of notional regardless of the JPY side. At 1:30 that's $4,233 per lot, more than EURUSD. Margin on crosses with expensive base currencies like GBP is higher than people expect if they think in EURUSD terms. The same applies to EURGBP on a USD account, where the base is euros, so margin is the euro notional converted at EURUSD. A quick look at the margin column in the platform after opening a tiny position shows the real number for any pair.

Clear example. One thing to add is that some prop firms use different leverage for different instruments, such as lower leverage on gold and indices than on major pairs. A trader who holds a gold position and a few forex positions together can run into margin limits faster than expected. Checking the margin requirement for each symbol in the specification window, and keeping a rough total of margin used, avoids the situation where a new order cannot be opened because margin is tied up elsewhere.

MT5 offers two position models, and the choice changes how a scalper's trades behave. A hedging account lets multiple positions open on the same symbol, even in opposite directions. A netting account merges everything into one position per symbol.

The difference is invisible until it matters. On a netting account, adding to a long just changes the average price and volume. A partial close adjusts the existing position. A stop loss and take profit apply to the whole thing, so a second entry with a different stop overwrites the first one's protection.

For strategies that layer entries or run several independent setups on one pair, netting can cause messy surprises. One setup's exit closes the other's trade.

On a hedging account, each trade stands alone, which is cleaner but can pile up margin when opposing positions are open at the same time, depending on how the broker calculates it.

Anyone moving a system from MT4 to MT5 should check which model the account uses before assuming it will behave the same way.

Margin treatment differs too. On many netting accounts, opening an opposite position reduces the existing one, which releases margin. On hedging accounts, the opposite position often needs its own margin, or a reduced hedge margin if the broker offers it. A strategy that flips direction quickly will see very different margin usage depending on the model.

Commission can also vary. Closing a position of 1 lot with a new 1 lot opposite order on a netting account counts as one closing deal. On a hedging account, it may be treated as a new position plus a later close, with commission on each. Reading the execution policy for how each model counts deals prevents surprises on the statement.

Which model has worked better for layered scalping systems, and why?