Key Takeaways:
The US dollar strengthened against every major and emerging-market currency Thursday, with the South African rand tumbling 2.6% to lead losses, as the European Central Bank held rates steady and escalating Middle East conflict drove a flight to dollar-denominated assets.
"The ECB's decision to pause after June's hike, combined with the intensifying geopolitical backdrop, created a perfect environment for dollar demand," said Sarah Lin, markets reporter at Edgen. "The move was broad-based — we saw selling across developed and emerging-market currencies alike, which is unusual for a single session."
The euro slipped 0.32% to $1.1375 after touching a session high of $1.1436 earlier in the day, before the ECB announcement reversed the move. The British pound fell 0.45% to $1.3315, while the dollar gained 0.31% against the Swiss franc to 0.8169. Among commodity-linked currencies, the New Zealand dollar dropped 0.82%, the Australian dollar fell 0.48%, and the Mexican peso declined 0.77%. The Brazilian real lost 0.64%, and the Polish zloty fell 0.40%.
The selloff marks one of the most synchronized non-dollar declines in recent months, with 10 currencies falling at least 0.3% against the greenback in a single session. The outsized move in the rand — more than triple the next-largest decliner — may reflect specific South African economic vulnerabilities on top of the broader dollar bid, traders said.
ECB Hold Sets the Tone
The ECB kept its deposit rate at 2.25% and the main refinancing rate at 2.40%, as expected, but left the door open for further tightening should energy-driven inflation re-emerge. The decision followed June's rate hike — the first in nearly three years — and was framed as a data-dependent pause rather than the start of an easing cycle. The euro initially rose after the announcement before reversing course as traders focused on the bank's cautious forward guidance and the deteriorating geopolitical outlook.
Oil prices surged to nearly $100 a barrel for Brent crude, up 6.2% to $99.90, after Yemen's Houthis attacked two Saudi oil tankers, intensifying disruptions to shipments through both the Red Sea and the Strait of Hormuz. The rally in crude reinforced demand for the dollar as the US economy is seen as less vulnerable to energy supply shocks than Europe or Japan.
Emerging Markets Bear the Brunt
Emerging-market currencies bore the heaviest losses. The rand's 2.66% decline was the largest among its peers, followed by the New Zealand dollar at 0.82% and the Mexican peso at 0.77%. The Hungarian forint weakened 0.50% against the dollar, while the Swedish krona fell 0.68% and the Norwegian krone lost 0.28%. The Turkish lira edged 0.04% lower, and the Indian rupee closed flat.
The dollar index, which measures the greenback against a basket of six major currencies, rose alongside US Treasury yields, with the two-year yield climbing to a 17-month high as markets priced in a higher probability of Federal Reserve rate hikes. The Fed is widely expected to hold rates steady at its meeting next week, though futures markets are positioned for at least one increase by year-end.
This article is for informational purposes only and does not constitute investment advice.
