Spreads are one of those costs that can look small at first but make a noticeable difference when trades are opened frequently. I usually compare best forex brokers UK before choosing a platform, because tighter spreads combined with reliable execution can reduce trading costs and make the final result easier to evaluate. This matters even more for short-term strategies, where every pip counts. I also check whether spreads widen during volatile periods and whether commissions or overnight fees are added separately, since the advertised spread alone does not always show the full cost of a trade.