How it works
Forex quotes are a ratio between two currencies. The order matters. When you buy the pair, you are long the base and short the quote at the same time. When you sell the pair, you reverse both legs. The base is the asset you are trading; the quote is the unit you are pricing it in.
Example
GBP/JPY at 187.50. GBP is base, JPY is quote. One pound buys 187.50 yen. Buy one mini lot (10,000 GBP) and you take on 10,000 pounds of long exposure, shorting 1,875,000 yen as the counter side. If GBP/JPY moves to 188.50 you gained 100 pips. Each pip on this pair, because the quote is JPY, is worth roughly 0.85 USD per mini lot at current FX. The pip value calculation always lives on the quote-currency side.
Reading any pair
- USD on the left: a rising number means USD strengthens against the quote. USD/JPY rising = stronger dollar.
- USD on the right: a rising number means the base strengthens against USD. EUR/USD rising = stronger euro.
- Neither USD: cross. Rising number means the base strengthens against the quote, no dollar implication.
Why it matters
Misreading base versus quote is the most common rookie mistake in forex. Buying EUR/USD because you expect dollar strength is exactly backwards. Buying USD/JPY because you expect yen strength is also backwards. The pair name is the contract. Read it left to right: long the base, short the quote when you buy.
