The financial markets always offer attractive profit opportunities, but for beginners, entering this world can feel like learning a new language. If you do not understand the market’s “codes,” you can easily make the wrong decisions and suffer capital losses.
In this article, we will summarize and explain the 10 most essential terms in CFD (Contracts for Difference) trading in a concise and easy-to-understand way. Having a solid understanding of these 10 concepts is the first building block toward trading more proactively and safely.
1. CFD (Contract for Difference)
First, we need to understand the nature of the market we are participating in. A CFD is a type of derivative. When trading CFDs (Gold, Forex, Indices, etc.), you do not actually own the underlying asset. For example, buying a Gold CFD does not mean you take a physical gold bar home.
Essentially, you generate profits based on the price difference of an asset between the time you open and close a position. If the price moves in the direction you predicted, you make a profit; otherwise, you incur a loss.
2. Pip and Lot (Units of Measurement)
These are two closely related concepts used to calculate trading volume and the magnitude of price movements.
- Pip (Percentage in Point): The smallest unit used to measure price movements in a currency pair or asset. (Example: If GBPUSD rises from 1.2500 to 1.2501, that is a 1-pip increase.)
- Lot: The unit used to measure trading volume. 1 Standard Lot is typically equivalent to 100,000 units of the base currency.
Tip for beginners: For those who are just starting out, Uyên always recommends beginning with a Cent Account (with a trading volume 100 times smaller than a standard account) or using extremely small lot sizes (0.01–0.05 Lot) to protect your account.
3. Long / Buy and Short / Sell
Unlike traditional spot stock markets, CFDs are two-way markets. You can potentially profit even when the market is declining.
- Long (Buy): You open a Buy position when you expect the asset price to rise in the future. You make a profit if the price increases.
- Short (Sell): You open a Sell position when you expect the asset price to decline. You make a profit if the price falls below the level at which you sold.

4. Ask Price and Bid Price
When you access any trading platform, such as MT4 or MT5, you will always see two prices moving simultaneously.
- Bid (Sell Price): The price at which the broker is willing to buy the asset from you. This is the price at which your order is executed when you click SELL.
- Ask (Buy Price): The price at which the broker is willing to sell the asset to you. This is the price at which your order is executed when you click BUY. The Ask Price is always higher than the Bid Price.
5. Spread (Bid-Ask Spread)
Spread is the difference between the Ask Price and the Bid Price (Spread = Ask – Bid).
This is considered a trading cost you pay to the broker when opening a position. When you first open a Buy or Sell position, your account will typically show a small unrealized loss immediately—this is due to the Spread. The lower the spread, the more favorable it is for traders.
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6. Leverage
Leverage is a tool that allows you to trade a position size several times larger than your actual capital.
It is important to remember that leverage does not change the profit potential of a trade. Instead, it reduces the amount of capital required to open larger positions relative to your actual capital. Trading with leverage is also considered a double-edged sword, as highly leveraged accounts can be significantly affected by large price movements. Therefore, it is essential to study and apply effective risk management strategies when trading leveraged financial instruments.
7. Margin and Free Margin
Margin: The minimum amount of actual funds you are required to “deposit” with the broker to keep your position open after leverage is taken into account.
Free Margin: The amount of funds remaining in your account after accounting for used margin and the unrealized profit or loss of your open positions. You can use this amount to open additional positions.
8. Margin Call and Stop Out
These are two red-alert conditions that no trader wants to encounter, occurring when the market moves significantly against your position.
Margin Call: When your account balance falls to a critical level (typically around the minimum margin requirement), the broker will issue a warning, requiring you to deposit additional funds or close some positions to maintain the account.
Stop Out: If you ignore the Margin Call and market conditions continue to deteriorate, the broker will automatically close your open positions to prevent further losses. This is commonly referred to as a “blown account.”
9. Stop Loss (SL)
From my trading perspective, Stop Loss is the lifeline of a trader.
SL is a conditional order. You set a predetermined price level at which, if the market moves against your prediction, the position will automatically be closed to accept a small and controlled loss. Never trade without a Stop Loss, as the market can wipe out your capital within minutes when major news is released.
10. Take Profit (TP)
Unlike SL, Take Profit is a predetermined price level that automatically closes your position and realizes your profit when the market moves as expected. Setting a TP helps you maintain discipline and avoid letting greed take over by holding a position for too long, only to watch your profits disappear when the market reverses.
Conclusion
CFD trading is not a game of chance; it is a discipline based on probability and emotional management. Understanding these 10 essential terms will help you read charts, understand technical analysis, and feel more confident when developing your own trading strategies.
If there are any terms you do not fully understand or you want to learn more about capital management, feel free to leave a comment below or join our community to exchange knowledge and experience!
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