About Trimmed Mean Inflation (AUD)
Trimmed-mean inflation for Australia averages the central portion of the price-change distribution after excluding extreme outliers at both tails. It is considered one of the best leading indicators of persistent inflation.
Why FX traders watch it
Unlike simple ex-food-and-energy core measures, trimmed-mean inflation adapts each period to whichever categories are most extreme—giving a more robust signal of the underlying inflation trend that the Reserve Bank of Australia targets.
How to interpret the data
A trimmed-mean reading persistently above the Reserve Bank of Australia's target is a strong signal that tighter monetary policy is needed, supporting the aud. A sustained move below target raises rate-cut speculation.