Spreads, Swaps, and Commissions: The Hidden Cost of Every Trade
Understand spreads, overnight swaps, and commissions so you know your true cost per trade—not just the chart.
Every trade has a price beyond whether price moved in your direction. The bid-ask spread is the most visible: you pay slightly above mid to buy and receive slightly below mid to sell. In calm conditions it is small; during news or thin liquidity it can widen sharply. If your strategy depends on tiny movements, spread expansion can turn a “good” setup into a loss before price even moves against you.
Overnight swap charges or credits matter if you hold positions through the roll. Whether you pay or earn depends on the pair and direction. It is easy to ignore on a one-day trade; it adds up if you carry positions for weeks.
Some brokers charge explicit commission on top of raw spreads, especially on ECN-style accounts. That is not automatically worse—it can be more transparent—but you should add commission into your expected cost when comparing performance.
Serious traders estimate cost per trade in advance. You do not need a spreadsheet for every click, but you should know, roughly, what friction you are paying. That awareness keeps expectations honest when you review results at month-end.
Overnight swap charges or credits matter if you hold positions through the roll. Whether you pay or earn depends on the pair and direction. It is easy to ignore on a one-day trade; it adds up if you carry positions for weeks.
Some brokers charge explicit commission on top of raw spreads, especially on ECN-style accounts. That is not automatically worse—it can be more transparent—but you should add commission into your expected cost when comparing performance.
Serious traders estimate cost per trade in advance. You do not need a spreadsheet for every click, but you should know, roughly, what friction you are paying. That awareness keeps expectations honest when you review results at month-end.