What Is Swap? A Complete Guide to Calculating Overnight Fees in CFD Trading

In CFD trading, another important cost that medium- and long-term traders must consider is Swap, also known as an overnight holding fee. Understanding what swap means and how it is calculated helps traders manage portfolios and evaluate profits and losses more accurately.

What Is Swap and When Is It Applied?

Swap is the interest rate differential between the financial instruments being traded. It is either charged or credited when a trading position is held overnight beyond the server’s rollover time, which is typically 22:00 GMT+0.

Important Swap Conditions Traders Should Know

  • Triple Swap: For currency CFDs, a triple swap is applied on Wednesday night to account for holding positions over the weekend when markets are closed.
  • Weekend: No swap is charged on Saturday and Sunday because the market is closed. The cost for these days is already included in the Wednesday triple swap.
     

How to Check Swap Rates on the MT5 Platform

You can easily view Swap Long (for Buy positions) and Swap Short (for Sell positions) on MT5 by following these steps:

  1. Open the Market Watch window

  2. Right-click on the instrument you want to check

  3. Select Specification

  4. Scroll down to view Swap Long and Swap Short
     

Swap Calculation Formula

Swap calculation generally consists of two main steps.

Step 1: Calculate Pip Value

Pip Value = (Contract Size × Lot Size) × 10^(–Digits)

Step 2: Calculate Total Swap

Swap = Pip Value × Swap Rate × Number of Holding Days

Note: If the position is held over Wednesday night, use Number of Holding Days = 3 due to the triple swap rule.

Example of Manual Swap Calculation

Click here to expand
 
ItemValue
Contract Size100,000
Lot Size1
Digit5
Pip Value(100,000 × 1) × 10⁻⁵ = 1 USD
Swap Long–1.5935
Swap Short–3.71
Holding PeriodMonday 10:00 → Tuesday 10:00 (server time)
Holding Days1 day

Notes

Swap is charged at 22:00 server time.

Wednesday at 22:00 server time is charged as Triple Swap (×3).

Swap Calculation Example Table

Monday 10:00 → Tuesday 10:00 (Server Time)

  • Example 1: Sell 1 Lot
Calculation ItemFormula / ValueResult
Pip Value(100,000 × 1) × 10⁻⁵1 USD
Swap Rate UsedSwap Short–3.71
Swap FormulaPip Value × Swap Short × Days1 × –3.71 × 1
Swap Result (Sell)–3.71 USD

Summary: Sell 1 lot held overnight for 1 day → Swap = –3.71 USD

  • Example 2: Buy 1 Lot
Calculation ItemFormula / ValueResult
Pip Value(100,000 × 1) × 10⁻⁵1 USD
Swap Rate UsedSwap Long–1.5935
Swap FormulaPip Value × Swap Long × Days1 × –1.5935 × 1
Swap Result (Buy)–1.59 USD

Summary: Buy 1 lot held overnight for 1 day → Swap = –1.59 USD

 

Important Reminder: If you hold an order across Wednesday 22:00 server time, the system applies Triple Swap (×3).

Useful Tip

To reduce complexity and save time, traders are recommended to use the IUX Trading Calculator available on the IUX website. This tool provides fast and accurate swap calculations based on real-time trading conditions.

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