Weighted Median CPI (Core Inflation)
October 28, 2026 00:30 UTC
3.60 %YoY
3.60 %YoY
0.00 %YoY
The Australian Bureau of Statistics (ABS) released the latest Weighted Median CPI figures for the quarter ending September 2026, revealing that core inflation remained unchanged at 3.60% year-on-year. This reading, published on October 28, 2026, at 11:30 AEDT, provides a critical checkpoint for market participants gauging the persistence of price pressures within the domestic economy. As the Reserve Bank of Australia (RBA) navigates a complex inflationary landscape, the stability of this core measure serves as a vital barometer for the effectiveness of current monetary settings.
For FX traders and macro analysts, the lack of movement in the Weighted Median CPI is significant. With the index failing to retreat from its previous 3.60% level, the data suggests that underlying inflationary momentum remains entrenched above the RBA's target range. This report provides an in-depth analysis of the figures, their impact on the Australian Dollar, and the potential trajectory for future interest rate decisions in Canberra.
Recent Readings
What Weighted Median CPI (Core Inflation) Measures
The Weighted Median CPI is a primary measure of underlying inflation calculated by the Australian Bureau of Statistics (ABS). Unlike the headline CPI, which includes volatile items like fuel and fresh food, the weighted median tracks the price change of the item situated at the 50th percentile of the expenditure distribution. By focusing on the middle of the distribution, the indicator effectively strips out the 'noise' created by extreme price swings in specific sectors, providing a cleaner look at the trend in broader consumer prices.
Traders and economists prioritize this metric because it is a preferred gauge for the Reserve Bank of Australia when assessing the durability of inflation. Because it filters out idiosyncratic shocks, the Weighted Median CPI provides a more reliable signal of whether inflation is becoming embedded in the wage-price dynamic or the services sector. When this figure remains elevated, it suggests that the RBA faces a more challenging task in returning inflation to its target band, making it a high-conviction data point for institutional portfolio managers.
Breaking Down the October 2026 Numbers
The latest reading of 3.60% YoY marks the second consecutive quarter where core inflation has held at this level, following the 3.60% print recorded in the second quarter of 2026. This stability follows a notable period of acceleration; the index bottomed out at 2.80% in mid-2025 before embarking on a steady climb. The climb saw the index move from 2.90% in September 2025 to 3.30% in December 2025, and then to 3.50% by March 2026.
The current stagnation at 3.60% is particularly telling when viewed against the backdrop of the past two years. After the disinflationary trend observed throughout 2024 and early 2025—where the index dropped from 3.40% to 2.80%—the recent plateau indicates that the RBA's restrictive stance has hit a floor in terms of its impact on core price growth. The lack of a decline in the latest quarter suggests that the 'last mile' of inflation reduction is proving to be the most difficult, as underlying demand-side pressures remain stubbornly resilient.
Impact on AUD and FX Markets
The Australian Dollar typically reacts with heightened sensitivity to core inflation prints that deviate from expectations or signal a change in central bank policy bias. In this instance, the 3.60% reading reinforces the 'higher-for-longer' narrative for RBA interest rates. FX markets generally respond to such data by recalibrating the interest rate differential between Australia and its G10 peers, most notably the United States and New Zealand.
Pairs such as AUD/USD and AUD/JPY are particularly susceptible to this news. A stagnant inflation rate that refuses to trend lower creates a support floor for the AUD, as it precludes the possibility of near-term rate cuts. Traders often interpret this as a signal to maintain long positions on the AUD, particularly if the RBA is perceived as being more hawkish than the Federal Reserve. Conversely, if the market had priced in a decline, the failure to see that drop can lead to a tactical 'buy the fact' response, though sustained inflation usually keeps the currency supported against major counterparts.
Monetary Policy Implications
The RBA has been clear that it requires convincing evidence that inflation is moving sustainably toward its target. With the Weighted Median CPI stuck at 3.60% for two consecutive quarters, the data provides little ammunition for the dovish faction of the RBA board. The current trend suggests that the central bank is unlikely to pivot toward an easing bias in the near term, as the inflationary stickiness poses a risk to medium-term price stability.
If the RBA's goal is to see a consistent downward trajectory, this report will likely be viewed as a signal that the current policy rate is not restrictive enough to force a break in the current trend. Analysts will be scrutinizing the upcoming RBA meeting minutes for any shift in language regarding the 'neutral' rate and the potential for further tightening. Given the current numbers, the RBA is effectively forced into a holding pattern, maintaining its restrictive posture until evidence of a cooling economy becomes undeniably clear in the core data.
Looking Ahead
As we look toward the next quarterly release, the focus will shift to whether the 3.60% level acts as a ceiling or if momentum will shift back toward the upside in early 2027. Structural trends, such as service-sector wage growth and housing supply constraints, will remain the primary drivers of this volatility. Traders should pay close attention to the monthly CPI indicator releases, which provide a more granular, albeit less comprehensive, look at the inflation trajectory between the major quarterly reports.
Key dates for the coming quarter include the next monthly inflation updates and the subsequent RBA monetary policy statement, where updated forecasts will be released. If the next quarterly reading in early 2027 shows an uptick above 3.60%, the market may begin to price in a higher probability of a surprise rate hike, which would likely trigger a significant repricing in the AUD yield curve and a potential bullish breakout for the currency against the USD.
Track This Release
Access the full Weighted Median CPI (Core Inflation) time series for AUD via the FXMacroData API:
curl "https://api.fxmacrodata.com/v1/announcements/aud/core_inflation?api_key=YOUR_API_KEY"
See the Weighted Median CPI (Core Inflation) indicator page for full details, API examples, and release history, or explore the live dashboard.