FX Markets Watchful as U.S. Supreme Court Tariff Ruling Looms; Dollar Steady, EUR Soft, GBP Range-Bound.

USD – Holding a cautious tone as markets await today’s Supreme Court ruling on Trump-era tariffs, with recent US data still shaping expectations.
EUR – Slightly softer, mainly reflecting cautious risk sentiment and a lack of strong euro-specific support.
GBP – Little changed, with sterling largely tracking global developments ahead of key UK data later this week.


USD:

The US dollar is steady to slightly cautious this morning as attention turns to a potentially significant legal and economic development in the US. The Supreme Court is expected to rule today on whether the Trump-era tariffs imposed under the IEEPA framework were legally justified.

This decision could have meaningful market implications.

If the tariffs are ruled illegal, it may open the door to refund claims and create short-term uncertainty for government finances, while potentially improving trade conditions over time.

If they are upheld, it could reinforce the direction of existing US trade policy and maintain pressure in parts of the global trade system.

At the same time, markets are still digesting recent US economic data, including inflation signals and activity indicators, which continue to shape expectations for Federal Reserve policy over the coming months. Overall, the dollar remains sensitive to both legal and macro developments today.


EUR:

The euro is slightly weaker, with EURUSD edging lower mainly as investors adopt a cautious stance ahead of the US legal decision and in the absence of strong eurozone catalysts today. Euro-area data remains limited, meaning the currency continues to take direction primarily from broader global drivers rather than domestic developments.

As a result, euro performance today is likely to depend largely on US-centric news, both economic and political, rather than eurozone fundamentals.


GBP:

Sterling is little changed, with GBPUSD trading relatively range-bound. There is still no major UK-specific news today to provide fresh momentum, meaning the pound continues to follow wider FX dynamics and risk sentiment.

Markets are instead looking ahead to upcoming UK data later this week, which may offer a clearer steer on growth conditions and Bank of England expectations. Until then, GBP remains closely linked to US developments, including the tariff ruling and broader dollar moves.

*All rates shown are indicative of interbank rates and should only be used for indication purposes only. It is important to note that foreign exchange rates fluctuate and that rates may vary depending on the amount and the base currency that is purchased or sold. Rates are correct as of 8:00am UK time. CentralFX are not responsible for the rates shown.