We should treat the one-in-three Melbourne Cup Day rate hike priced by markets as a warning, not a curiosity. Former Reserve Bank board member Ian Harper told a Sydney audience this week that another move before Christmas is “plausible,” matching futures that assign roughly a 33 percent probability to a November tightening. Plausible is not the same as necessary—and households are already absorbing a September hike to 4.60 percent while grocery logistics costs spike.
Headline inflation printed at 4.0 percent in the latest monthly indicator, with housing inputs and fuel doing much of the work. Woolworths lifted metro fuel levies charged through Primary Connect to 19.88 percent and regional levies above 50 percent, passing diesel inflation back to suppliers who will seek shelf-price relief. Governor Michele Bullock cautioned businesses were ready to pass on fuel costs if needed. That is not a environment where another 25 basis points automatically solves the problem; it may simply compound mortgage stress while supply shocks keep goods inflation sticky.
Bonds are telling a sterner story than equities
Australia’s 10-year yield near 5.4 percent and the US equivalent near 5.25 percent signal that bond investors expect restrictive policy to linger. Equities, meanwhile, have held up—a divergence Selfwealth noted in its 8 October wrap. If the RBA follows with another hike, the burden falls unevenly: savers gain, borrowers on variable mortgages lose, and renters face landlords resetting expectations.
The board’s mandate is whole-of-economy inflation returning to target, not protecting share portfolios. Still, policymakers should articulate how a November move improves the path when trimmed mean inflation is already 3.6 percent and much of the recent headline pulse is supply-side.
What we should demand before November
Publish the staff scenario that justifies a second 2026 hike, including assumed fuel paths and grocery pass-through. Clarify how higher rates interact with government energy rebates and health insurance changes that will shift household budgets anyway. And recognise that credibility with the public—not just with traders—requires showing that another tightening will not simply be absorbed as “plausible” because models say so.
Melbourne Cup Day should be about more than a horse race and a board meeting. It is the moment to decide whether monetary policy is still calibrated to Australian kitchens, or only to the screens at 20 Martin Place.