On Wednesday (September 9) during the Asian session, the British pound traded in a narrow range against the US dollar, currently hovering around 1.3540, almost unchanged for the day. On the one hand, broad dollar selling triggered by the strengthening yen provided some support for the pound; on the other hand, rising expectations of a Fed rate hike and geopolitical uncertainty limited further declines in the dollar, while also dampening traders' willingness to establish new long positions in the pound ahead of key data releases.

Two key variables this week: UK GDP and US inflation.

The market's focus is clearly on two key data releases this week: the US Producer Price Index (PPI) on Thursday and the Consumer Price Index (CPI) on Friday, as well as the UK's monthly GDP data, also to be released on Friday. These three data points will provide directional drivers for the pound against the dollar in two different directions. The UK GDP data will directly reflect the resilience of the UK economy, thus influencing market assessments of the Bank of England's subsequent policy path; while the US inflation data is seen as the final crucial piece of the puzzle before the Federal Reserve's September 14-15 policy meeting, and whether it exceeds or falls short of expectations could trigger significant fluctuations in the dollar and transmit to the pound against the dollar. Traders generally believe that if the UK data shows stabilizing economic momentum, it will help solidify market expectations that the Bank of England will maintain higher interest rates; US inflation will directly determine the short-term direction of the dollar. The simultaneous release of these two sets of data could amplify exchange rate volatility, exposing the pound against the dollar to two-way risks during the data window, and any result deviating from the consensus could quickly reshape short-term pricing logic.

Expectations of a Fed rate hike are rising, but inflation data will be the deciding factor.

Market expectations for a September rate hike by the Federal Reserve continue to rise. Against the backdrop of persistently high energy prices and inflationary risks, last week's stronger-than-expected US non-farm payroll report further fueled market bets on a September rate hike. Scotiabank strategists emphasized that this week's inflation data is crucial to the policy outlook, stating explicitly that "evidence of improving inflation needs to be sufficiently clear in this week's PPI and CPI before the Fed is likely to hold rates steady." The bank also noted that market pricing still leans towards further tightening, with overnight index swaps (OIS) pricing indicating a roughly 60% probability of a 25 basis point rate hike next week. This means that if inflation data is higher than expected, the dollar could receive significant support and put pressure on the pound; conversely, if the data shows a moderate decline in inflation, it could solidify market expectations of a Fed pause in rate hikes, providing upward momentum for the pound. The data results will directly determine the repricing magnitude of interest rate expectations, becoming the core variable for the pound/dollar exchange rate movement this week.

A stronger yen weighed on the dollar, while the UK's fiscal narrative provided support.

On the other hand, the strengthening of the yen, triggered by expectations of the Bank of Japan's policy, caused the dollar to fall to a more than two-week low at the beginning of this week, providing additional upward momentum for the pound against the dollar. Meanwhile, statements from UK Chancellor of the Exchequer Healy also provided fundamental support for the pound – his optimistic growth agenda and commitment to fiscal discipline improved market assessments of the UK's economic and fiscal prospects to some extent. However, these positive factors did not effectively translate into sustained upward momentum for the pound. The geopolitical risk premium maintained by the escalating US-Iran conflict, coupled with the suppression of expectations of a Fed rate hike, meant that demand for the dollar as a safe haven remained, and traders remained cautious before data releases, unwilling to establish large new long positions in the pound. In the short term, the pound will rely more on data results and the shift in dollar strength than on a one-sided narrative; the market is still waiting for clear signals to reposition its positions.

Summarize

The British pound is currently consolidating around 1.3540 against the US dollar, lacking a clear directional driver in the short term. The market is in a "pre-data quiet period"—this Thursday's US PPI, Friday's US CPI, and UK GDP data will collectively determine the next move for the pound against the dollar. Before the data releases, the exchange rate is likely to fluctuate within the 1.3500-1.3600 range. Traders will closely monitor the degree of deviation between the aforementioned data and market expectations to determine the final pricing logic before the Fed's September interest rate meeting, and whether the UK economic fundamentals are sufficient to support the pound against a potential dollar rebound. (GBP/USD daily chart, source: FX678) At 10:50 Beijing time, GBP/USD was trading at 1.3544/45.