In May, the TWD/USD exchange rate surged by 2.088, and the Central Bank announced it had detected foreign investors making large currency inflows under the guise of domestic securities investments, without any actual investments, creating a risk of profiting from currency exchange differences, violating foreign exchange management principles. The Central Bank reiterated that foreign capital inflows should be used for declared investment purposes in Taiwan stocks, not for speculative currency trading.

President Trump's tariffs prompted a sharp decline in US bonds and the dollar, and the NTD's rise in April and May drew market attention, with May seeing the highest rise in 36 years. The Central Bank issued six statements reaffirming its findings of forex speculation by foreign investors and emphasized that the dollar's status as the world's primary reserve currency remains secure.

The Central Bank views the recent appreciation of the NTD against the USD as a reflection of Taiwan's strong economic fundamentals, asserting that exchange rates are primarily determined by market supply and demand. If excessive volatility arises in the domestic forex market that threatens economic and financial stability, the Central Bank will maintain the dynamic stability of the NTD as part of its responsibilities.

Recently, US Treasury Secretary Scott Bessent stated that the Trump administration continues to uphold a strong dollar policy. Additionally, Stephen Miran, chairman of the White House Council of Economic Advisers, specifically denied any push by the US for a secret currency agreement aimed at forcing other countries' currencies to appreciate against the dollar, highlighting that a strong dollar aligns with US interests. The finance ministers of the US and Japan also agreed at the G7 finance ministers' meeting that exchange rates should be determined by market supply and demand.