US Dollar Index holds above 99.00 as US-Iran talks stir uncertainty
Von Akhtar Faruqui
Aktualisiert: 25 Mar 2026
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The US Dollar Index (DXY), which measures the value of the US Dollar (USD) against six major currencies, extends its gains for the second consecutive day, trading around 99.30 during the Asian hours on Wednesday.
- US Dollar Index struggled amid reports that Washington is pursuing talks with Iran to de-escalate the conflict.
- Trump said Iran offered a goodwill gesture in talks linked to Strait of Hormuz energy flows.
- Fed’s Goolsbee said rate cut outlook remains uncertain, depending on conflict duration and inflation progress.
The US Dollar Index (DXY), which measures the value of the US Dollar (USD) against six major currencies, extends its gains for the second consecutive day, trading around 99.30 during the Asian hours on Wednesday.
However, the Greenback struggled amid reports that Washington is pursuing talks with Iran to de-escalate the conflict. US President Donald Trump said Iran had offered a goodwill gesture in negotiations tied to energy flows through the Strait of Hormuz. Moreover, Israeli media indicated the US was seeking a one-month ceasefire to facilitate discussions, while The New York Times reported that Washington had presented Iran with a 15-point proposal to resolve the conflict.
Despite these developments, traders remained cautious as Iran rejected US claims of diplomatic progress. While officials denied any formal breakthrough, a senior Iranian source confirmed that messages had been exchanged via Pakistan, which has emerged as a key mediator. Reports also suggest that an in-person meeting could take place in the coming days.
Meanwhile, Chicago Fed President Austan Goolsbee warned that energy shocks could pose risks to both sides of the Federal Reserve’s mandate. He noted that the outlook for rate cuts remains uncertain and will depend on the duration of the conflict and further progress on inflation.
Additionally, Fed Governor Michael Barr said the central bank may need to keep interest rates steady for some time before considering further cuts, citing persistent inflation above the Fed’s 2% target and risks stemming from the ongoing Middle East conflict.
US Dollar FAQs
The US Dollar (USD) is the official currency of the United States of America, and the ‘de facto’ currency of a significant number of other countries where it is found in circulation alongside local notes. It is the most heavily traded currency in the world, accounting for over 88% of all global foreign exchange turnover, or an average of $6.6 trillion in transactions per day, according to data from 2022. Following the second world war, the USD took over from the British Pound as the world’s reserve currency. For most of its history, the US Dollar was backed by Gold, until the Bretton Woods Agreement in 1971 when the Gold Standard went away.
The most important single factor impacting on the value of the US Dollar is monetary policy, which is shaped by the Federal Reserve (Fed). The Fed has two mandates: to achieve price stability (control inflation) and foster full employment. Its primary tool to achieve these two goals is by adjusting interest rates. When prices are rising too quickly and inflation is above the Fed’s 2% target, the Fed will raise rates, which helps the USD value. When inflation falls below 2% or the Unemployment Rate is too high, the Fed may lower interest rates, which weighs on the Greenback.
In extreme situations, the Federal Reserve can also print more Dollars and enact quantitative easing (QE). QE is the process by which the Fed substantially increases the flow of credit in a stuck financial system. It is a non-standard policy measure used when credit has dried up because banks will not lend to each other (out of the fear of counterparty default). It is a last resort when simply lowering interest rates is unlikely to achieve the necessary result. It was the Fed’s weapon of choice to combat the credit crunch that occurred during the Great Financial Crisis in 2008. It involves the Fed printing more Dollars and using them to buy US government bonds predominantly from financial institutions. QE usually leads to a weaker US Dollar.
Quantitative tightening (QT) is the reverse process whereby the Federal Reserve stops buying bonds from financial institutions and does not reinvest the principal from the bonds it holds maturing in new purchases. It is usually positive for the US Dollar.
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