The upcoming release of the US Consumer Price Index (CPI) for August is widely anticipated by markets, as it is expected to play a decisive role in shaping expectations for the Federal Reserve's (Fed) policy path at next week's FOMC meeting [1][3][6][8]. Consensus forecasts project headline CPI to rise by 0.4% month-over-month and remain steady at 3.4% year-over-year, while core CPI, which excludes food and energy, is expected to increase by 0.2% month-over-month and 2.4% year-over-year [3][6][8]. The Producer Price Index (PPI) report released earlier showed firmer-than-expected inflation, particularly in components feeding into the PCE deflator, with healthcare costs up 0.3% M/M and airfares up 3.2% M/M, reinforcing expectations for a Fed rate hike [1][6]. As a result, around 18 basis points of hikes are now priced in for next week's FOMC meeting, up from 13 basis points at the end of last week [1].
Fed officials have signaled a conditional approach: Governor Christopher Waller stated that a 'hot' inflation print could justify a rate hike, but also acknowledged recent disinflationary trends and indicated a preference to keep rates steady if progress continues [3][8]. Fed Chairman Kevin Warsh described the labor market as 'stable' and inflation as 'more concerning,' noting that while recent inflation data has been better than expected, underlying trends have not meaningfully improved [8]. The August jobs report showed the US economy added 162,000 jobs, exceeding expectations and suggesting the labor market could withstand a rate hike if deemed necessary [8].
The US Dollar Index (DXY) has maintained a mildly positive bias, trading just above 99.00, supported by sticky inflationary pressures and geopolitical risks, including rising energy prices and tensions with Iran [6][8]. However, the index remains capped below key technical resistance levels, and upside momentum appears to be fading [6]. In currency markets, GBP/USD has struggled to capitalize on positive UK GDP data, as rising US rate hike bets and geopolitical uncertainties support the US Dollar [2][4]. ING analysts warn of a potential dovish repricing for the Bank of England, expecting no further hikes and targeting lower GBP/USD into Q4 [4].
Analysts at TD Securities expect core inflation to remain contained, with services driving inflation and core goods acting as a drag [3]. They see risks skewed to the upside due to assumptions of large price declines in tariff-exposed goods. Citigroup economists called the CPI report 'crucial,' stating, 'The fate of the September FOMC meeting lies with August CPI' [8]. A weaker-than-expected core CPI could prompt markets to scale back rate hike bets and trigger a USD selloff, while a stronger print would reinforce expectations for a hike [1][3][8].
Energy prices have surged, with US crude oil rising above $100 per barrel and gasoline prices up 44% since the war with Iran began on February 28, further complicating the inflation outlook [8]. The Fed has not raised or lowered rates this year, and the upcoming CPI data is seen as pivotal for both monetary policy and US affordability [8].
CONCLUSION
Markets are intensely focused on the August US CPI release, which is expected to determine the Federal Reserve's next move on interest rates. Sticky inflation, rising energy prices, and a resilient labor market have heightened the stakes, with a strong CPI print likely to cement expectations for a rate hike. Conversely, a softer reading could trigger a USD selloff and a dovish shift in rate expectations.