Sterling moved lower on Thursday, with the euro also retreating slightly, as fresh geopolitical concerns in the Middle East helped underpin the U.S. dollar and constrained gains in both European currencies. The market was positioned for the European Central Bank's policy decision later in the session.
GBP/USD dropped to 1.3365, a decline of 0.12% on the day. EUR/USD eased to 1.1404, down 0.05% as of 07:05 ET (11:05 GMT). Broad foreign-exchange volatility remained relatively muted, but some strategists cautioned that calm markets may mask underlying vulnerabilities.
Francesco Pesole, FX strategist at ING, warned: "The low-vol regime carries material risks should risk assets reach a breaking point in their tolerance for higher energy prices. That point may be nearer than current market calm implies."
Heightening energy-related concerns, Houthi militants struck two Saudi vessels in the Red Sea overnight, adding a fresh element of uncertainty around oil supply. That development offered a plausible explanation for the modest dollar support that limited the euro's and sterling's gains.
Within both G10 and emerging-market FX, commodity-linked currencies outperformed. The Norwegian krone, Brazilian real and Mexican peso led the pack, reflecting investor rotation into higher-yielding names rather than a broad-based weakness in the dollar.
In the United States, the data calendar was thin on Thursday, leaving the dollar without a new domestic fundamental catalyst. No Federal Reserve speakers were scheduled for the day, and market participants were largely in a holding pattern ahead of economic releases due next week.
ING noted that a global repricing toward more hawkish central-bank expectations - including at the European Central Bank - has limited the extent to which rising front-end U.S. rates translate into a stronger dollar. That dynamic has kept the U.S. Dollar Index from reclaiming the 101.50 level in the near term.
Sterling's modest slide was driven more by dollar-side dynamics than by any UK-specific news, with no notable domestic data or policy developments reported from the United Kingdom on Thursday. The currency's movement broadly tracked the firmer tone in the dollar.
The euro's spotlight was firmly on the ECB, where a hold on interest rates was widely expected. ING's baseline called for a hawkish hold, with the governing council aiming to preserve market pricing of 45 basis points of tightening by year-end.
Pesole suggested that a post-meeting media leak signaling a September hike, rather than explicit guidance from President Christine Lagarde during the press conference, was the more likely mechanism for maintaining that hawkish posture.
"A central bank meeting would normally be a prime catalyst for EUR/USD to break out of its tight trading range, but we do not expect that to happen today," Pesole said.
ING expressed a near-term downside bias for EUR/USD, citing what it described as dangerous complacency in FX markets around Gulf developments and targeting a drift toward 1.1380 in the coming days. The bank said its year-end view for a more sustained euro recovery would depend on a constructive shift in Middle East news flow and a stabilization in risk sentiment.
With regard to sterling, ING noted that a move back toward 1.34 and beyond for GBP/USD would likely require either a dovish pivot from the Federal Reserve or a softer dollar supported by improved global risk appetite.
Market context
Markets were cautious ahead of the ECB decision and lacked fresh U.S. economic inputs for the day. Geopolitical developments in the Red Sea and the prospect of further central-bank tightening were the most prominent themes shaping FX moves.