Online trading platform Plus500 has reported higher core profit, pointing to growing momentum in its United States business as an important part of the improvement.

The result highlights the company’s effort to broaden its operations beyond the markets on which it built its name. Progress in the US gives the group another source of activity and reduces its reliance on any single region.

Trading platforms can see sharp changes in customer activity as markets become more or less volatile. A wider geographic base may help smooth some of that variation, although results remain sensitive to market conditions and client engagement.

Investors will now watch whether the US operation can maintain its pace and make a larger contribution to the group over time. The update suggests that expansion is beginning to translate into stronger underlying earnings.