Understanding Currency Pairs: Choosing the Right Pairs for Your Strategy

What if the real problem is not your entry signal, but the currency pair underneath it? A strategy can look tidy on one pair and fall apart on another because the market itself behaves differently.

That difference starts with liquidity.

The global FX market averaged $7.5 trillion a day in April 2022, and the US dollar appeared on one side of 88% of trades in that same survey, which is why major pairs usually trade with tighter spreads and smoother fills than thinner crosses.

A pair is never just a price chart.

It also carries volatility, transaction costs, and the economic drivers that move it, from interest-rate gaps to risk sentiment.

That is why pair choice shapes strategy design so strongly.

A momentum setup, a mean-reversion idea, and a carry-style approach can all look sensible on paper, yet only one may match the pair’s natural rhythm and cost profile.

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Spreads may fluctuate and widen due to factors including market volatility, news events, market open/close, and others.