GBP/USD Retreats as US Inflation Data Shifts Fed Rate Expectations

Per TradingKey's Wednesday coverage, GBP/USD slid to a five-day low near 1.3620 as traders repriced the probability of a Fed rate hike toward year-end on the back of sticky core inflation; at the time of writing, the pair trades around 1.3603, down roughly 0.33% on the day. We are watching whether the 1.3605 floor holds — below that, the prior consolidation band around 1.3580 returns to view, and the bullish case we mapped out last week loses its anchor.

The macro trigger and the rate-path repricing

The US Personal Consumption Expenditures Price Index delivered an upside surprise, and the market response was textbook: dollar bid, sterling offered. That single print reshaped the near-term narrative — if the Fed leans more hawkish into the fourth quarter, the yield differential between US Treasuries and Gilts widens in favor of the greenback, pulling capital flows back into USD and weighing on anything priced in pounds. Cable's failure to clear the 1.3660 resistance — a ceiling it had been pressing against since Monday — confirmed the exhaustion of the rally that built up through the back half of August.

Sterling's side of the tape

Context matters here, because the move we are seeing now is a sharp reversal of what unfolded only five sessions ago. Per TradingNEWS coverage, Cable tagged a five-month high of 1.3670 on Friday after the S&P Global Flash UK Services PMI printed 52.8 — a six-month high that came in above every forecast in the Reuters poll, which had pointed to a fall to 51.8. A Treasury buyback operation earlier in the week helped clear the path through 1.36, and the composite output reading at 52.5 was consistent with quarterly growth of roughly 0.3%. From the early-August stabilization near 1.34 to that 1.3670 peak, the pair added approximately 270 pips; the speed of that ascent is precisely why the reversal has been so orderly once the dollar narrative shifted. Notably, July UK retail sales contracted 0.5%, but the market absorbed that miss while the bid was in place — now, with the Fed back in focus, every Sterling-specific vulnerability gets repriced alongside it.

Levels we are tracking

United Overseas Bank's Quek Ser Leang and Lee Sue Ann maintain a positive 1–3 week outlook, citing 1.3700 as the next upside objective provided 1.3605 defends. We would flag the asymmetry: a sustained push back through 1.3660 is required to revive the bullish case, while a clean break below 1.3605 opens 1.3580 and then 1.3561. Further out, the January high at 1.3870 remains the reference for anyone rebuilding a longer-dated Sterling position — roughly 1.5% above current spot. The broader tape is consistent with consolidation rather than trend reversal: DXY sat at 98.67 to 98.79 last week after refreshing a three-month low at 98.55, and the greenback printed its weakest weekly performance across the G10 complex. For desks managing GBP exposure into the next data cluster, the discipline is straightforward — track the subscription-based reading and news tools reshaping how traders consume cross-asset intelligence so that the catalyst calendar, not the chart, drives the lean.