Pound Sterling Price News and Forecast: GBP/USD shakes off US CPI jolt as UK growth steals spotlight

Market impact: Mildly bullish GBP/USD, but with a high risk of near-term two-way volatility.

The key development is that stronger-than-expected UK activity has partly offset the dollar-positive implications of the US inflation release. UK GDP expanded 0.4% month-on-month in July versus expectations for no growth, while annual growth accelerated to 1.6%; industrial and manufacturing output also exceeded forecasts. This improves the UK growth narrative and reduces immediate pressure for the Bank of England to ease policy, supporting sterling through the interest-rate differential.

The US data remains a counterweight. August headline CPI matched expectations at 3.4% year-on-year, but core CPI rose 0.3% month-on-month versus a 0.2% forecast. Markets consequently raised the implied probability of a 25-basis-point Federal Reserve hike at the September 16 meeting to 88%, from roughly 60% the previous day. That should limit GBP/USD upside if Treasury yields and the dollar sustain their post-data repricing.

The immediate market interpretation is therefore not a clean sterling breakout. The UK growth surprise is GBP-positive, but the stronger US core-inflation reading keeps the US rate advantage relevant. The pair’s recovery after an initial decline toward 1.3470 suggests the CPI shock was not sufficient to generate persistent dollar demand, yet this may reflect positioning and fading of the initial reaction rather than a decisive change in the macro trend.

What matters next:

• September 16 Fed decision: A hawkish Fed response or guidance could revive dollar strength and pressure GBP/USD.
• September 17 BoE decision: Markets expect rates to remain at 3.75%, but stronger UK activity means the main risk is whether policymakers sound less willing to ease or continue to push back against tightening expectations.
• UK employment and August CPI data: These will determine whether the GDP surprise translates into a durable repricing of BoE expectations or proves to be a one-month growth rebound.

Technically, FXStreet describes GBP/USD as holding above support clustered around 1.3479–1.3459, with resistance near 1.3678. The constructive bias remains vulnerable if those supports fail, while a sustained break above resistance would provide stronger confirmation that the market is treating the UK data as a broader policy signal rather than a temporary growth surprise.

Overall assessment:

mildly bullish for GBP/USD in the short term, but fundamentally mixed. Sterling has gained relative support from UK growth, while the dollar retains a rate-driven advantage from firm US core inflation. The directional bias is likely to remain unstable until the Fed and BoE decisions clarify the relative policy paths.