The United States dollar climbed to a one-week high against major currencies on Monday as renewed tensions between the United States and Iran dampened hopes for a Middle East peace deal.
Reuters reported that this follows developments over the weekend in which the United States seized an Iranian cargo ship, escalating geopolitical uncertainty. The situation has driven investors toward safe-haven assets, influencing global currency movements and adding pressure across foreign exchange markets.
The dollar strengthened against a basket of major currencies, although it later trimmed some gains as trading progressed. Movements across key currencies reflected cautious investor sentiment amid rising geopolitical risks. The dollar index rose to a one-week high of 98.47 before easing to 98.34, although it remains down 1.55% in April after gaining 2.3% in March. The euro fell 0.05% to $1.1754 after touching a one-week low of $1.1729, while the British pound declined 0.15% to $1.3497. The Australian dollar dropped 0.3% to $0.7145, reflecting weaker risk appetite among investors. The Japanese yen weakened to 158.96 per dollar but stayed below the 160 level that could trigger potential intervention by authorities. These movements highlight a cautious global market environment, with investors reacting to both geopolitical risks and recent currency trends.
The uptick in the dollar was driven by escalating tensions between the United States and Iran, which have unsettled global markets. The developments have reduced optimism around diplomatic progress and heightened fears of renewed conflict. The United States announced it had seized an Iranian cargo ship attempting to bypass its blockade. Iran responded with threats of retaliation, raising concerns about a potential escalation in hostilities. Tehran also indicated it would not participate in a planned second round of negotiations with the U.S. The breakdown in talks comes ahead of the expiration of a two-week ceasefire, adding to market uncertainty. These geopolitical developments have reinforced demand for safe-haven assets such as the U.S. dollar, despite its broader monthly decline.
Nigeria’s foreign exchange market also reflected mild pressure, with the naira weakening slightly and external reserves declining. These trends point to ongoing FX challenges amid global uncertainties. The naira closed at N1,342.5 per dollar on Friday, compared to N1,341.01 per dollar on Thursday. Nigeria’s external reserves fell to $48.65 billion as of April 16, 2026. This represents a drop from $48.72 billion earlier in the week and $48.81 billion at the close of the previous week. The combined movement in global currencies and Nigeria’s reserves suggests continued sensitivity of the local market to external shocks and capital flow dynamics.
The recent volatility of the exchange rate at the black market has been linked to fiscal leakages, speculation and arbitrage activities, which far outpace the optimism at the official market. The CBN had earlier projected a positive outlook for the country’s external reserves despite recent declines. The apex bank expects reserves to rise to $51.04 billion in 2026 from $45.01 billion in 2025.
