Australian RBA Weighted Median CPI (Sep MM) 1.0% (Prev. 0.7%)

Australian RBA Weighted Median CPI (Sep MM) 1.0% (Prev. 0.7%)

The weighted median is one of the RBA's two core measures, alongside the trimmed mean, and the quarterly underlying prints have historically carried more weight for the policy path than the headline CPI, which is often distorted by administered prices and subsidies. A step-up of this size in the median measure points to breadth rather than a single volatile component, and broad-based readings of this kind have tended to matter more to the board than narrow ones, since the median is designed to capture the central tendency across the basket. The transmission runs through Australian front-end rates and the AUD rate differential against the US and Japan, with the two and three year part of the curve the usual first mover when underlying inflation surprises. The distinction worth drawing is between a monthly indicator print, which is partial and reweighted, and the full quarterly CPI, which remains the series the RBA formally targets; revisions and composition detail will determine how much of this feeds through. The follow-ons are the accompanying trimmed mean, any RBA commentary reframing the data, and how the print sits relative to the bank's own published forecasts, since beats against staff projections have historically been what shifts the reaction function rather than beats against consensus.