US dollar rallies as Treasury Secretary Scott Bessent announces sweeping Iran sanctions

Treasury Secretary Scott Bessent announced a massive escalation of US sanctions against Iran on Monday, unveiling what the administration is calling “Operation Economic Outcast.” The dollar responded with a roughly 0.2% gain on the DXY index as investors reached for the world’s favorite safe-haven currency. The initiative targets Iran’s access to global financial infrastructure across a strikingly broad set of channels: oil revenues, digital assets, technology, gold, aviation, and shipping. Any entity caught helping Iran circumvent these restrictions faces a threat that tends to concentrate minds quickly, exclusion from the US dollar system. Iran’s economy feels the squeeze The rial didn’t wait around for the details. Iran’s currency cratered to an all-time low of 2.02 million per US dollar. For context, Iran was already dealing with inflation approaching 90%. A major Iranian bank collapsed in December 2025, and the broader economy has been deteriorating under successive rounds of sanctions that predate this latest package. Bessent framed the initiative as part of a comprehensive strategy, with assurances that Iran’s isolation would deepen unless substantial compliance is demonstra...