The dollar experienced its most significant surge in three months and reached a 13-month high following a Federal Open Market Committee (FOMC) meeting on June 17, chaired by Kevin Warsh. Fed officials indicated a growing likelihood of interest rate hikes in 2026, with some forecasts suggesting a quarter-percentage point increase as early as July and another before the year's end. The Bloomberg Dollar Spot Index advanced as much as 0.8% immediately after the announcement, pushing it approximately 1% above its pre-meeting level.

This hawkish stance from the Fed provided a renewed boost to the dollar, which had already benefited from its safe-haven status during the recent Iran war that caused oil prices to surge. The new communication regime under Warsh emphasized price stability and a data-driven approach to monetary policy. This shift led to a rapid adjustment in bond markets, pushing up short-term Treasury yields and giving global investors a strong incentive to move money into US dollar-denominated assets. The dollar's strength was also supported by the underlying resilience of the US economy, driven in part by significant spending on artificial intelligence, and inflation reaching a three-year high of roughly twice the Fed's 2% target.

The dollar's rally had a substantial impact on other major currencies. The euro dropped to its lowest level since March, the Canadian dollar hit a seven-month low against the dollar, and the yen weakened to its cheapest point since July 2024, falling past the 160-per-dollar mark. The pound sterling also saw a significant decline. Analysts like Lee Hardman of MUFG Bank noted that the Fed's hawkish update threatened to trigger a "bullish breakout" for the dollar, while Alex Cohen of Bank of America described the meeting as "unambiguously hawkish and thus unambiguously dollar positive." Speculators held $27.8 billion worth of bullish dollar positions, the most since 2025, according to a recent report. The Dollar Index (DXY) surged to 100.81, its highest since May 2025.