What Is a Forex Swap?
In retail leveraged trading, a swap commonly refers to an overnight adjustment associated with keeping a position open beyond the applicable rollover time.
Swap values can differ for:
- long positions;
- short positions;
- currency pairs;
- metals;
- other instruments.
Is There One Universal Swap Formula?
No.
MetaTrader supports several methods for swap calculation, including configurations based on points, base currency, margin currency, deposit currency, percentages, and other methods.
That is why copying a generic online formula can sometimes produce a result different from what appears in your trading account.
Where Can Traders Check Swap?
The relevant symbol specification can display fields such as:
Swap Long
Swap Short
Swap Type
The precise calculation then depends on the symbol configuration.
Why Can Overnight Costs Matter?
Consider a day trader who closes all trades before rollover.
Swap may have limited relevance.
Now consider a swing trader holding positions for:
five days,
two weeks,
or several months.
Overnight adjustments can become much more significant to overall trading cost.
This is why comparing forex brokers in Dubai purely on spread can be misleading for longer-term traders.
What Is Triple Swap?
Certain trading setups can apply a multiple-day financing adjustment on a particular rollover to account for settlement across non-business days.
The exact treatment should be checked in the instrument/account terms rather than assumed.
Conclusion
A professional evaluation of trading costs should consider:
spread + commission + potential financing/swap + execution effects
rather than looking only at the advertised spread.