Forex trading is complex but can provide good results for educated traders. It is dangerous and traders should always keep a close eye on their business; after all, success or failure is measured by the Profit and Loss (P&L) of the business. It is important to have a clear understanding of the P&L as it is directly related to the interest in the trading account. If the price moves against you, your profit margin will decrease, thus reducing the amount available for trading.
Key Takeaways:
- For currency traders, understanding their profits and losses (P&L) is essential, as it directly impacts the margin balance in their trading accounts.
- Foreign exchange trades are evaluated in real-time, and this process is known as “mark-to-market.” This calculation reflects the unrealized P&L, meaning the trades are still open, and the profit or loss values are not final until the position is closed.
- To determine the profit or loss on a trade, you need to know the position size and how many pips the price has moved. The actual profit or loss is calculated by multiplying the position size by the pip movement.
Perception and unawareness of rise and fall
All your currency transactions are charged at the current exchange rate. Report your business’s unexpected gains and losses on a business-to-business basis. The word “unknown” means the trade is still open and the amount of your profit or loss is infinite. If you are long, this is the price at which you can sell. For a short position, this is the price at which you can buy to close the position. When you close a trading position, the profit or loss is visible (visible P&L). If you make money, the balance increases, if you lose money, it decreases. Since profits and losses are determined by the market, they will change as the value of your investment continues to change. Therefore, the money balance is constantly changing.
The Essentials of Profit and Loss Calculation
The process of calculating profit and loss on a trade is simple. You only need to know the position size and the number of pips the price has moved. The profit or loss is determined by multiplying the position size by the pip movement.
For example, let’s say you hold a 100,000 GBP/USD position, and the current price is 1.3147. If the price moves from 1.3147 to 1.3162, that’s a 15-pip movement. In this case, for a 100,000 GBP/USD position, the 15-pip change results in a profit of $150 (100,000 × 0.0015).
To determine whether this is a profit or a loss, you must also know whether the trade was a buy (long) or sell (short) position.
Long position: In the case of a long position, if the prices move up, it is a profit, and if the prices move down, it is a loss. In our earlier example, if the position is long GBP/USD, then it would be a $150 profit. Alternatively, if the prices had moved down from GBP/USD 1.3147 to 1.3127, it would’ve meant a $200 loss (100,000 × -0.0020).
Short position: In the case of a short position, if the prices move up, it is a loss, and if the prices move down, it is a profit. Using the same example, if we had a short GBP/USD position and the prices moved up by 15 pips, it would be a loss of $150. If the prices moved down by 20 pips, it would be a $200 profit.
The following table summarizes the calculation of P&L:
| 100,000 GBP/USD | Long position | Short position |
| Prices up 15 pips | Profit $150 | Loss $150 |
| Prices down 20 pips | Loss $200 | Profit $200 |
Another aspect of the P&L is the currency in which it is denominated. In our example, the P&L was denominated in dollars. However, this may not always be the case.
In our example, GBP/USD is priced as the amount of dollars per pound. The British pound is the base currency and the US dollar is the currency. At an exchange rate of 1.3147 GBP/USD, the cost of buying 1 pound is $1.3147. As the exchange rate changes, so does the value of the dollar. For most models, each pip is worth $10 and profit and loss are in USD. Generally speaking, profit and loss will be in the trading currency, so if it is not US dollars, you need to convert it to US dollars for accounting purposes.
Let’s say you have a short position of 100,000 USD/CHF. In this case, your profit and loss will be calculated in Swiss francs. As of September 2024, the pair was trading around 0.8455. For most models, each pip is worth 10 CHF. To convert profit or loss into US dollars, you need to divide the profit or loss by the USD/CHF exchange rate, i.e. 100 × 0.8445 CHF or $118.4132.
When we have profit and loss, we can easily use these results to calculate the available balance in the trading account. Margin calculations are usually made in US dollars.
An Introduction to Forex Trading
Forex trading involves simultaneously buying one currency while selling another in hopes of profiting from changes in their relative values.
What Is ‘Mark to Market’ in Trading?
Mark to market (MTM) is a method of measuring the fair value of accounts that can fluctuate over time, such as assets and liabilities.
What Does ‘Pip’ Mean in Forex?
A pip is the smallest whole unit price move that an exchange rate can make, based on forex market convention.
Final Thoughts
You don’t need to calculate your profit and loss manually, as all brokerage accounts automatically calculate your profit or loss on each trade. However, it’s important to understand how these calculations work and how they affect your needs. For example, if your leverage is 100:1, you’ll need $1,000 in margin to open a standard hand of $100,000/CHF. A clear understanding of the money involved in each trade will help you manage your risk effectively.




