The US Dollar strengthened to its highest level in a year following the Federal Reserve's decision to maintain interest rates within the 3.50%-3.75% range. This move came during Kevin Warsh's first policy meeting as Fed Chair on Wednesday, signaling continued hawkish monetary policy.

According to FX Street, the US Dollar Index rose to around 100.80 on Thursday, a level not seen since May 2025. Meanwhile, the USD/CHF currency pair climbed to a new yearly peak of 0.8059, surpassing the previous high of 0.8042 recorded on March 31, 2026, reflecting market expectations of ongoing Fed firmness.

For Japanese investors, the dollar's strength amid unchanged US rates underscores the importance of closely monitoring Fed policy shifts, which can influence currency valuations and impact cross-border investment strategies.