Selling interest resumed across the foreign exchange market at the start of the week, pulling the US Dollar Index (DXY) lower as diplomatic efforts between the United States and Iran raised expectations of reduced regional friction. Tracking the greenback against a basket of world currencies, the index failed to build on Friday's modest recovery attempt from the 101.60 area. Moving through the early European session, the gauge registered intraday losses exceeding 0.20 percent to trade near 101.75 as market participants adjusted safe-haven exposures.
Diplomatic Engagements Over the Strait of Hormuz
The primary catalyst weighing on the dollar stems from weekend diplomatic negotiations in the Middle East. Iranian representatives engaged with Qatari mediators on Sunday for a third consecutive day, presenting a proposed two-day framework aimed at reopening the Strait of Hormuz waterway, conditioned upon specific terms being fulfilled by the United States. Providing additional momentum to risk sentiment, US President Donald Trump stated that negotiations with Iran were progressing well and noted that Iran desired an agreement. These combined signals curtailed demand for the US dollar, which typically benefits during episodes of heightened global instability.
Technical Structure Weakens Below the 100-Hour SMA
From a chart standpoint, the US dollar index remains constrained beneath its 100-hour Simple Moving Average (SMA) situated around 102.10, maintaining downward intraday pressure. Momentum oscillators continue to show subdued strength: the Moving Average Convergence Divergence (MACD) has tilted into negative territory, while the Relative Strength Index (RSI) stands around 41. Live technical tracking shows the 14-period RSI at 51, with the MACD line at 0.23 below its signal line of 0.33, generating a bearish histogram reading of -0.10. These collective metrics indicate that recent rebound efforts lack sufficient follow-through buying.
For the negative intraday bias to dissipate, buyers must push the DXY convincingly back above the 100-hour SMA barrier. On the downside, the 101.60 region offers initial support, followed closely by the October swing low near 101.45, where the 20-day technical support also resides. A decisive decline through 101.45 would expose the market to steeper downside, potentially breaching the 101.00 psychological threshold toward the 100-day SMA support at 100.70. Daily parameters show a 52-week trading band between 95.55 and 102.95, with the central pivot positioned at 101.83, overhead resistance at 101.92 (R1) and 102.09 (R2), and floor levels established at 101.66 (S1) and 101.56 (S2).
The US Dollar's Role and Federal Reserve Policy Mechanics
The US Dollar serves as the primary currency of the United States while functioning as an informal circulating medium in multiple international jurisdictions. Accounting for over 88 percent of aggregate foreign exchange market activity, global dollar turnover averaged 6.6 trillion dollars daily according to 2022 figures. The greenback succeeded the British Pound as the world's preeminent reserve currency following the second world war. Historically linked to physical gold, this standard ended in 1971 following the termination of the Bretton Woods monetary framework.
Monetary policy governed by the Federal Reserve remains the paramount determinant of the dollar's valuation. The central bank operates under a dual mandate: safeguarding price stability through inflation control and supporting maximum sustainable employment. Its chief instrument for steering these targets is benchmark interest rate adjustment. When consumer prices surge beyond the central bank's 2 percent threshold, policymakers raise interest rates, attracting capital into dollar assets. Conversely, when inflation falls below 2 percent or labor markets show excessive slack, borrowing costs are reduced, which typically dampens currency valuations.
Under extreme economic stress where traditional rate cuts prove insufficient, the Federal Reserve can initiate quantitative easing (QE). This liquidity injection mechanism allows the central bank to purchase domestic government bonds from financial institutions using newly created dollars, directly unclogging paralyzed credit channels where counterparty anxieties prevent private interbank lending. Utilized extensively during the 2008 Great Financial Crisis, QE systematically expands dollar supply, resulting in downward pressure on the currency. Its converse operation, quantitative tightening (QT), removes policy accommodation by allowing central bank bond holdings to mature without reinvestment, generally providing support to the dollar.
Repercussions Across Currencies, Bullion, and Digital Assets
The softening greenback influenced major asset classes across trading desks on Monday. In currency markets, the Australian Dollar (AUD/USD) erased early Asian session losses as risk appetite strengthened, although spot values remained below the one-month peak set the previous Thursday as traders awaited policy directions from the Reserve Bank of Australia. Concurrently, USD/JPY recovered from its post-Bank of Japan dip beneath 157.00, advancing toward the 158.00 zone despite verbal intervention warnings delivered by Japan's Finance Minister Satsuki Katayama.
In commodities, gold halted a two-day retreat, staging a recovery after tumbling below 3,900 dollars per ounce on Friday to its lowest mark since October 2025. While dollar weakness provided immediate respite to spot bullion, persistent expectations of Federal Reserve policy tightening driven by energy-related inflation risks could cap further upside for non-yielding bullion. Meanwhile, cryptocurrency assets posted modest gains following four consecutive weeks of negative returns throughout October. Bitcoin recovered above 78,462 dollars upon defending pivotal support levels, while Ethereum rebounded over 2,295 dollars, though it continues to trade underneath primary Exponential Moving Averages, preserving an overarching cautious outlook.
