Why the US Dollar Index is Struggling: Policy Headwinds and Trade Uncertainty (2026)

The US Dollar Index (DXY) is facing a challenging environment, with a negative bias that's becoming increasingly hard to ignore. This is despite the index's struggles to reclaim the psychological 100 threshold, a key level that has proven elusive. The situation is further complicated by the impact of the Japanese Yen (JPY) and European currencies, which are better indicators of the underlying weakness in the greenback. Philip Wee, a strategist at DBS Group Research, highlights several factors contributing to this trend.

One significant factor is the reduced expectations for a September Federal Reserve rate hike. Following the underwhelming FOMC meeting, futures markets now predict a 58% probability of a hike, down from 72%. This shift in sentiment reflects a broader uncertainty about the Fed's monetary policy trajectory. Additionally, US trade policy uncertainty and legal challenges to tariffs are posing headwinds for the USD. The Trump administration's refund of approximately $100 billion in tariffs collected under the International Emergency Economic Powers Act, following a Supreme Court ruling, has further complicated the situation.

Wee's analysis emphasizes the importance of considering European currencies when assessing the DXY's performance. Excluding the JPY's correction, the strength in the Euro (EUR), British Pound (GBP), and Swiss Franc (CHF) more accurately represents the Dollar's weakness. This perspective is crucial for investors and traders looking to navigate the complex dynamics of the foreign exchange market.

In my opinion, the DXY's struggle near the 100 threshold is a critical indicator of the market's sentiment and the potential for further volatility. The combination of policy headwinds, legal challenges, and reduced rate hike expectations suggests a cautious approach for investors. As an expert, I would advise monitoring these factors closely, as they could significantly impact the value of the US Dollar and global financial markets in the coming months.

Why the US Dollar Index is Struggling: Policy Headwinds and Trade Uncertainty (2026)

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