Pound Slips as Geopolitics Lift US Dollar

The Geopolitical Bid and the Yield Backdrop

According to Reuters, Washington launched a new round of strikes on Tehran on Tuesday and revoked a license that had permitted Iran to sell oil, a sequence triggered by attacks on three tankers in the Strait of Hormuz. The move reignited concerns over the durability of the recent peace arrangement and the security of energy flows through the chokepoint, and the response was textbook: capital rotated into dollars, and front-end yields climbed as the inflation-risk premium re-priced. Westpac analysts underscored the dynamic, noting that "concerns over the inflation outlook were in focus, seeing yields jump higher across the globe." For FX desks, the transmission is straightforward — higher US yields widen rate differentials in the dollar's favor and amplify the capital-flow argument for the Greenback, even before the data calendar intervenes.

UK Politics: A Slow Unwind of the Domestic Risk Premium

Beneath the geopolitical noise, we are watching a quieter but consequential unwind on the UK side. The formal contest to succeed outgoing Prime Minister Keir Starmer is scheduled to begin on July 9, with Andy Burnham the clear frontrunner and a transition to his premiership widely anticipated by July 20. As that outcome crystallizes, market participants are gradually trimming the domestic risk premium that had been priced into UK assets. A more predictable political backdrop offers a structural floor under the pound — one that should stabilize sentiment even while headline-driven flows dictate the short-term tape in GBP/USD.

CPI, the Fed, and the Levels That Matter

The June US CPI release on Tuesday is the next major inflection point. Consensus expects headline CPI to cool from May's 4.2% year-on-year reading to roughly 3.8%, helped by softer energy prices, while core CPI — the metric the Fed actually weights in its reaction function — is forecast to print near 2.9% year-on-year. Goldman Sachs projects a core month-on-month increase of approximately 0.17% and a headline decline of about 0.11% month-on-month, implying inflation will look cooler on the surface without delivering the disinflationary surprise the doves are hoping for. A sticky core print would reinforce hawkish Fed expectations, extend the dollar's bid, and pressure GBP/USD through the 1.3350 handle; a meaningful downside surprise in core would compress yield differentials, lift risk assets, and open the door to a relief rally in the pound. We are watching 1.3350 as immediate support, with 1.3200 as the next downside reference if the dollar's safe-haven bid is reinforced by the data, and 1.3500 as the resistance level bulls need to reclaim to shift the medium-term bias.