
Trading close to 101.50 during Thursday’s European session, the US Dollar Index (DXY) remains subdued for a third successive day. The index tracks the US Dollar (USD) against a basket of six major currencies.

September’s decline in housing starts and a record low in pending home sales have added to evidence of US economic weakness, leaving the Greenback under pressure. The CME FedWatch Tool shows traders assigning an 84% probability to the Fed leaving interest rates unchanged next week, alongside a 90% likelihood of an increase in December. The outlook nevertheless remains uncertain: last week, Fed Chair Kevin Warsh declined to give guidance on when further interest rate rises might occur or whether they would be needed.
Rising oil prices could nonetheless lend support to the US Dollar by stoking inflation concerns and strengthening expectations of a Federal Reserve (Fed) rate rise. Crude gained after a drone strike on Saudi Aramco’s Shaybah oil field caused two casualties, heightening tensions in the Middle East and concerns about possible disruption to energy supplies. Meanwhile, Ukraine launched extensive drone attacks on key Russian oil infrastructure this week. The strikes signalled Kyiv’s intention to hinder Moscow’s planned increase in diesel exports under a recent agreement between Presidents Trump and Putin.
ING analysts describe a “subtle change in the rate markets” as investors reconsider their longer-term outlook. In late summer, especially September, they note that rising energy prices were closely linked to a “'higher rates forever'” narrative. That view drove the one-month USD OIS rate priced 10 years ahead to “5.17% – miles away from any neutral rate near 3.50%.” ING now regards those views as “changing,” with the latest repricing at the long end indicating that investors are beginning to question how sustainable the earlier higher-for-longer position is.
As well as being the official currency of the United States of America, the US Dollar (USD) serves as the ‘de facto’ currency in a substantial number of other countries, circulating alongside their local banknotes. Data from 2022 show that it accounts for over 88% of worldwide foreign exchange turnover, equivalent to an average of $6.6 trillion in daily transactions, making it the world’s most actively traded currency. After the Second World War, the USD replaced the British Pound as the world’s reserve currency. Gold backed the US Dollar for most of its history, until the Gold Standard ended with the Bretton Woods Agreement in 1971.
Monetary policy, set by the Federal Reserve (Fed), is the single biggest influence on the US Dollar’s value. Achieving price stability by controlling inflation and supporting full employment are the Fed’s two mandates. Adjustments to interest rates are its main means of pursuing these objectives. If prices climb too rapidly and inflation exceeds the Fed’s 2% target, the central bank will increase rates, supporting the USD. Conversely, inflation below 2% or an excessively high unemployment rate may prompt the Fed to cut interest rates, putting pressure on the Greenback.
When conditions are extreme, the Federal Reserve can print additional Dollars and introduce quantitative easing (QE). Through QE, the Fed substantially expands the supply of credit within a financial system that has become blocked. This unconventional policy is used when lending has dried up because banks, fearing that counterparties may default, are unwilling to lend to one another. It serves as a last resort when interest rate cuts alone are unlikely to deliver the required outcome. During the Great Financial Crisis in 2008, the Fed chose this approach to tackle the credit crunch. The process entails printing more Dollars to purchase US government bonds, mainly from financial institutions. The US Dollar generally weakens as a result of QE.
Under quantitative tightening (QT), the Federal Reserve reverses this process: it ceases purchasing bonds from financial institutions and no longer reinvests the principal repaid when its bond holdings mature in further purchases. This policy is generally supportive of the US Dollar.