Exposure
Also called Notional value, Position value, Market exposure, Effective leverage
Exposure is the full market value of your open positions, also called notional value or position value: lots × contract size × price. Your profit and loss move with this amount, not with the margin you deposited.
In the illustrative example used throughout this entry, a $500 account opens a $5,500 position. The broker only sets aside a slice of that as margin: at 50:1 leverage, margin = exposure ÷ 50 = $5,500 ÷ 50 = $110.
A price move hits your account in proportion to the $5,500, not the $110, so exposure is the number that tells you whether a normal day in the market is a small dent or a serious loss.
The exposure formula for one position and for the whole account
Exposure = lots × contract size × price
Exposure multiple = total exposure ÷ account equity
Contract size is the number of units one lot controls. In forex a standard lot is 100,000 units of the first currency in the pair. Multiplying by the price turns that into the second currency, so on a pair quoted in USD the answer is already in dollars.
If your account currency is the first currency in the pair, skip the price. On a USD account, 0.10 lots of USD/JPY is 0.10 × 100,000 = $10,000 of exposure. On a cross pair such as EUR/GBP the formula gives an answer in pounds, so convert it into your account currency at the current price.
Equity is your balance plus or minus the result of open trades. The exposure multiple is exposure divided by equity, and it tells you how many times your own money is in the market. Traders also call it effective leverage or real leverage. The maximum leverage your broker offers is only the ceiling on how high this number can go; the multiple is what you are actually using.
The multiple is a shortcut: a 1% move in price changes your account by that many percent.
Net exposure is your longs minus your shorts on the same market. Gross exposure is your longs plus your shorts. If you hold a long of $11,000 of EUR/USD and a short of $6,000 of EUR/USD, the two figures work out like this:
Net exposure = 11,000 − 6,000 = $5,000
Gross exposure = 11,000 + 6,000 = $17,000
You set exposure through the lot size when you place the order; after that it drifts with price, so recheck it on open trades.
Futures and commodities use the same formula; only the contract size changes. Use the number of units one contract controls, taken from the contract specification, times the current price. One contract that controls 100 units at a price of $2,000 carries 1 × 100 × 2,000 = $200,000 of exposure.
Worked exposure calculations for $500, $5,000 and $50,000 accounts
Continuing the illustrative example, three traders each buy EUR/USD at 1.1000.
The $500 account buys 0.05 lots. The steps below show the full calculation.
The $5,000 account buys 0.10 lots and the $50,000 account buys 2.00 lots. They follow the same steps, and the quick-reference table below shows all three accounts side by side. At the moment of entry, equity equals the account balance, so the multiple is exposure divided by the balance.
| Account | Position | Exposure | Multiple of account | 1% move against you |
|---|---|---|---|---|
| $500 | 0.05 lots | $5,500 | 11 | $55 (11%) |
| $5,000 | 0.10 lots | $11,000 | 2.2 | $110 (2.2%) |
| $50,000 | 2.00 lots | $220,000 | 4.4 | $2,200 (4.4%) |
The smallest account holds the smallest position but the highest exposure multiple (11), so the same 1% move hurts it most.
Adding up exposure by currency, not by trade
A trade list hides the real bet. Buying EUR/USD means you hold euros and have sold dollars. Buying GBP/USD means you hold pounds and have sold dollars again.
Continue the example. The $5,000 trader also buys 0.10 lots of GBP/USD at 1.3000. That adds 10,000 × 1.30 = $13,000. The two trades look separate, but the dollar side stacks: 11,000 + 13,000 = $24,000 sold, and 24,000 ÷ 5,000 = 4.8 times the account.
The 'Before' row of the drawing below shows the two positions stacking into that single dollar bet.
Use this check before every new order:
- Split each open pair into the currency you hold and the currency you sold.
- Add the amounts per currency, with bought as plus and sold as minus.
- Convert each currency total into your account currency at the current price.
- Divide the largest total, ignoring the plus or minus sign, by your equity.
- If the new trade pushes that number above the cap you chose, cut the size or skip the trade.
To choose the cap, decide the largest loss you accept on a 1% move. If that is 3% of the account, your cap is a multiple of 3. Here that means 3 × 5,000 = $15,000 of exposure, and the result of 4.8 is over it. The EUR/USD trade already uses $11,000, so only $4,000 is left: cut the GBP/USD order to 0.03 lots, which is 0.03 × 100,000 × 1.30 = $3,900.
How exposure and your stop decide the money at risk
Exposure tells you how big the position is. Your stop tells you how far price may travel against it. Together they give the money you put at risk on the trade:
Money at risk = exposure × stop distance as a % of price
In the example, the $5,000 trader holds $11,000 of EUR/USD bought at 1.1000. A stop 0.5% below entry sits at 1.1000 − 0.0055 = 1.0945. The money at risk is $11,000 × 0.5% = $55, which is 1.1% of the account.
If that figure is above your risk per trade, cut the lots, not the stop. With a 1% limit of $50, 0.09 lots gives 0.09 × 100,000 × 1.10 = $9,900 of exposure, and $9,900 × 0.5% = $49.50. The stop stays where the chart says it belongs. The bars below compare the two sizes against that $50 limit, with the stop unchanged.
Scale zoomed in to show the difference (bars do not start at zero).
Exposure mistakes that cost traders money
- Reading margin as exposure. Margin is a fraction of the position. Losses are calculated on the full position value.
- Thinking a tight stop shrinks exposure. A stop limits the planned loss, which is exposure × stop distance. The exposure itself stays the same. If price gaps past the stop, the loss is based on your exposure, not on your plan.
- Counting trades, not currencies. Three small positions against the same currency behave like one large position.
- Forgetting to recalculate after adding. Each add to a winning trade raises exposure, and so does a rising price on a long position.
- Treating a hedge as zero. A long and a short of the same size on the same pair cancel in net exposure, so price moves stop affecting you. Spreads, commissions and overnight charges still follow gross exposure, and margin on hedged positions depends on your broker's rules.
FAQ
What is an exposure limit in trading?
It is a ceiling on total position value. You can set one for yourself as a multiple of equity, and brokers or funded-account programmes may impose their own per instrument, per currency or per account. A broker limit rejects new orders that would raise exposure; your own limit only works if you check it before each order.
What is progressive exposure in trading?
It means building a position in steps. You start small and add only after the market moves in your favour, so full exposure is reached only when the trade idea is working. Recalculate total exposure after each add, and adjust the stop so the money at risk does not grow with it.
What are delta exposure and gamma exposure?
Both are options terms. Delta exposure measures how much an options position behaves like holding the underlying market directly. Gamma exposure measures how fast that delta changes as price moves. A spot forex trader does not need either to measure their own positions.