EUR/USD

EUR/USD accounts for roughly 23% of global forex volume. The combination of European Central Bank policy and Federal Reserve policy gives it two distinct catalysts per cycle, which is why systematic models built on rate-differential mean-reversion or trend-momentum tend to back-test cleanly here.

For the EA user, EUR/USD’s principal advantage is execution quality: at the brokers in this catalogue, typical Standard-account spreads are 0.7-1.6 pips and Raw / Zero account spreads compress to 0.0-0.3 pips with $3-7/lot commission. This is the lowest cost-of-trading surface available to retail, which materially helps strategies with high trade frequency (= scalping, news).

Session behaviour:

1. Tokyo session (00-09 UTC): thin liquidity, range-bound; not the right window for breakout EAs.
2. London open (07-11 UTC): the highest-volume window, with directional moves and meaningful range expansion. Trend, breakout, and news EAs find their best signals here.
3. NY overlap (12-16 UTC): London + NY combined liquidity, often the day’s highest range and tightest spreads.
4. NY close (20-22 UTC): range contraction, often false breakouts; EAs that filter for session quality avoid these hours.

Notable: the Tokyo session can produce false signals for trend EAs because the range moves often reverse on London open. EAs that filter trades to London-and-NY hours typically out-perform 24-hour variants on this pair.