The US dollar strengthened on Tuesday, driven by two intertwined forces: a more hawkish Federal Reserve stance amid persistent inflation fears and stalled US-Iran nuclear negotiations that kept safe-haven demand alive. The dollar index edged up to 104.2 by midday trading, while also trading near the upper bound of its year-long range around 99.13, reflecting cautious sentiment across currency markets.
Investors have increasingly priced in the possibility that the Fed will prioritize fighting inflation over cutting interest rates. Concern has been stoked by a selloff in US Treasuries, which pushed the 10-year yield roughly 50 basis points higher since late February when US-Israeli strikes on Iran escalated geopolitical tensions. The 2-year yield, closely watched for Fed policy expectations, surged nearly 70 basis points. Higher yields typically boost the dollar’s appeal to global investors seeking better returns, especially as the US economy shows more resilience to energy shocks than many of its peers, particularly in Europe.
Inflation expectations have climbed sharply, with market-based measures such as the 10-year breakeven rate hitting a three-year high of 2.508% earlier this month before easing to around 2.4%. Rising oil prices linked to the Iran conflict have fed those expectations, reducing the attractiveness of fixed-income assets and prompting investors to demand higher yields. Fed Chair Kevin Warsh, previously expected to favor rate cuts, now faces diminishing odds of easier policy as price pressures linger.
Simultaneously, US-Iran nuclear talks resumed in Vienna last week but have yet to yield a breakthrough. Both sides described discussions as constructive, but no timeline has been set for a final deal. The diplomatic stalemate has left markets in a holding pattern. A successful agreement could eventually weaken the dollar by easing geopolitical risk and increasing global oil supply, but for now the uncertainty is supporting the currency. Traders are bracing for potential volatility, as a collapse in talks could reignite safe-haven demand and push the dollar higher.
Equities rallied with the S&P 500 and Nasdaq hitting record highs, yet currency traders remained focused on the interplay between Fed hawkishness and geopolitical risk. Without a clear resolution, the dollar is likely to remain sensitive to both economic data and diplomatic headlines.