Definition of Spread
The difference between the bid and ask price of a currency pair. It represents the broker's transaction cost. For example, if EUR/USD bid is 1.1000 and ask is 1.1002, the spread is 2 pips.
At a glance
Example
Example: a 1.2-pip spread plus commission equal to 0.6 pip is ~1.8 pips of entry cost. Put “Spread” into the R:R math before judging a strategy.
Common mistake
Common mistake: ranking brokers on teaser “from” prices without measuring “Spread” on the same session and symbol.
Professional tip
Tip: log “Spread” at London–New York overlap and at quiet hours — the gap shows true strategy cost.