US Consumer Price Index set to accelerate further in September
The United States (US) Bureau of Labor Statistics (BLS) will publish the all-important Consumer Price Index (CPI) data for September on Friday at 12:30 GMT.
Markets will look for fresh signs of how US President Donald Trump’s tariffs are feeding through to prices. Therefore, the US Dollar (USD) could experience volatility on the CPI release, as the data could influence the Federal Reserve’s (Fed) interest rate outlook for the remainder of the year.
What to expect in the next CPI data report?
As measured by the change in the CPI, inflation in the US is expected to rise at an annual rate of 3.1% in September, the highest since May 2024, following a 2.9% increase in August. The core CPI inflation, which excludes the volatile food and energy categories, is forecast to rise 3.1% year-over-year (YoY), matching the previous month’s increase.
Over the month, the CPI and the core CPI are expected to advance by 0.4% and 0.3%, respectively.
TD Securities analysts believe that the September CPI report will highlight a slowdown in core inflation, led by cooling services prices, especially in housing, but expect a likely acceleration in goods inflation that reflects more tariff pass-through. “A still firm core should again result in a steady headline CPI at 0.4% m/m as a jump in the energy segment likely also provided a notable boost to September prices,” they add.
How could the US Consumer Price Index report affect the US Dollar?
Heading into the US inflation showdown on Friday, investors remain convinced that the Fed will opt for a 25-basis-point (bps) reduction in the monetary policy rate in October and December. According to the CME FedWatch Tool, markets are pricing in about a 97% probability of the policy rate falling from the current 4%-4.25% range to 3.5%-3.75% by the end of the year.
Because of the lack of key economic data releases due to the ongoing government shutdown in the US, September inflation figures will be scrutinized by Fed policymakers ahead of next week’s meeting. Although investors are unlikely to change their minds about the October interest rate cut, a significant upside surprise, especially in the monthly core CPI print, could trigger an important market reaction. A reading of 0.5% could prompt investors to reassess the probability of a rate cut in December and help the USD outperform its rivals with the immediate reaction. Conversely, the market positioning suggests that the USD doesn’t have much room left on the downside even if the CPI data does little or nothing to change the market’s view of the Fed’s rate outlook.
Commerzbank’s FX Analyst Antje Praefcke notes that the price data could indicate the extent to which tariffs have pushed up consumer prices and elaborates further:
“However, the data is unlikely to be a game changer for next week’s Fed meeting, as the majority of Fed members assume that any tariff effect on inflation will be temporary anyway. The dollar is already trending somewhat stronger ahead of the figures, but even an upward surprise in the price data is unlikely to deter the Fed from cutting rates next week.”
Eren Sengezer, European Session Lead Analyst at FXStreet, offers a brief technical outlook for the US Dollar Index (DXY) and explains:
“The technical outlook points to a bullish tilt in the short-term outlook. The Relative Strength Index (RSI) indicator on the daily chart climbs toward 60 and the USD Index holds comfortably above the 20-day, the 50-day and the 100-day Simple Moving Averages (SMAs).”
“On the upside, the Fibonacci 23.6% retracement of the January-July downtrend aligns as the next immediate resistance level at 99.50. A daily close above this level could attract technical buyers and open the door for a leg higher toward 100.00 (round level) and 100.80 (200-day SMA).”
“Looking south, the 20-day SMA aligns as an interim support level near 98.50 ahead of 98.10-98.00 (50-day SMA, 100-day SMA, round level) and 96.40 (end-point of the downtrend).”
Inflation FAQs
Inflation measures the rise in the price of a representative basket of goods and services. Headline inflation is usually expressed as a percentage change on a month-on-month (MoM) and year-on-year (YoY) basis. Core inflation excludes more volatile elements such as food and fuel which can fluctuate because of geopolitical and seasonal factors. Core inflation is the figure economists focus on and is the level targeted by central banks, which are mandated to keep inflation at a manageable level, usually around 2%.
The Consumer Price Index (CPI) measures the change in prices of a basket of goods and services over a period of time. It is usually expressed as a percentage change on a month-on-month (MoM) and year-on-year (YoY) basis. Core CPI is the figure targeted by central banks as it excludes volatile food and fuel inputs. When Core CPI rises above 2% it usually results in higher interest rates and vice versa when it falls below 2%. Since higher interest rates are positive for a currency, higher inflation usually results in a stronger currency. The opposite is true when inflation falls.
Although it may seem counter-intuitive, high inflation in a country pushes up the value of its currency and vice versa for lower inflation. This is because the central bank will normally raise interest rates to combat the higher inflation, which attract more global capital inflows from investors looking for a lucrative place to park their money.
Formerly, Gold was the asset investors turned to in times of high inflation because it preserved its value, and whilst investors will often still buy Gold for its safe-haven properties in times of extreme market turmoil, this is not the case most of the time. This is because when inflation is high, central banks will put up interest rates to combat it.
Higher interest rates are negative for Gold because they increase the opportunity-cost of holding Gold vis-a-vis an interest-bearing asset or placing the money in a cash deposit account. On the flipside, lower inflation tends to be positive for Gold as it brings interest rates down, making the bright metal a more viable investment alternative.




