Australia's 10-year government bond yield fell to about 5.1% on Oct. 30, its lowest level in eight weeks, even as traders priced an 83% chance that the Reserve Bank of Australia will raise interest rates for a fifth time this year at its meeting on Tuesday, Nov. 3, according to Trading Economics.

The split matters for investors across Asia who hold Australian dollar debt. Australia's 10-year debt yields more than 5%, and the past week showed two forces pulling in opposite directions: domestic inflation that keeps pushing the central bank toward tighter policy, and a global rush into safe government bonds that has dragged long-dated yields down.

Inflation data firmed the case for an RBA hike

The trigger for the shift in rate expectations was the September consumer price index. The Australian Bureau of Statistics said on Oct. 28 that prices rose 4.3% in the 12 months to September, up from 4.0% in August. The monthly gain was 0.8%. Trading Economics said economists had expected annual inflation of 4.2% and a monthly rise of 0.7%.

The trimmed mean, the underlying measure the RBA watches most closely, rose to an annual 3.6% from 3.5%, in line with forecasts. Over the September quarter, headline prices climbed 1.3% and the trimmed mean rose 1.0%, the ABS said; on that older quarterly basis, the annual trimmed mean reached 3.7%. Both remain well above the bank's 2% to 3% target band. (Capital Times has more on the inflation release and what it means for the RBA.)

Housing was the biggest contributor to annual inflation, up 5.2%, followed by transport, up 8.7%, according to the ABS. Automotive fuel prices rose 9.4% in September alone on higher world oil prices and were 23.6% higher than a year earlier. Moves that large fall outside the trimmed mean, which helps explain why headline inflation runs above the core figure.

Governor Michele Bullock told a Senate committee the same morning that some upside risks to inflation "have materialised or are materialising." She said the Monetary Policy Board had lifted the cash rate target by a cumulative 100 basis points this year and that inflation would likely come in above the bank's August base case, citing higher energy prices tied to the Middle East conflict as well as domestic capacity pressures. The key question for next week's meeting, she said, is whether the tightening so far will be enough to bring inflation back to target in a reasonable time.

Markets responded quickly. Trading Economics said the implied probability of a quarter-point increase at the November meeting rose to 88% from 60% after the CPI release. Savings.com.au reported that all four major Australian banks now expect the RBA to raise the cash rate to 4.85% from 4.60%. The Nightly cited VanEck's Russel Chesler as saying markets put the probability of an increase at about 80%.

Haven demand pulled long yields lower

The bond market did not follow the rate-hike story all the way. The 10-year yield rose toward 5.2% after the inflation data, then dropped to around 5.1% by Oct. 30 as global government bonds rallied, according to Trading Economics. The data provider tied the move to a selloff in technology stocks, disappointing earnings that raised doubts about heavy spending on artificial intelligence, and continuing tension in the Middle East.

That left the benchmark down 27.8 basis points over four weeks and on course for its first monthly decline since June, Trading Economics said. Over 12 months, it was still up 81.3 basis points. The pattern echoed moves in other large markets, where U.S. Treasury yields slipped back below 5% in recent weeks.

The result is a curve that is pricing near-term tightening while discounting some of the longer-run inflation risk.

Economists split on whether November ends the cycle

Bank economists agree on a November hike but not on what comes after it. Savings.com.au reported that Belinda Allen, head of Australian economics at Commonwealth Bank of Australia, described November as an insurance move and expects the bank to hold in December. National Australia Bank estimates that a 4.85% cash rate would leave policy roughly 150 basis points above neutral, and senior economist Taylor Nugent said a gap that size would leave the risks more balanced. NAB expects a pause after November, according to the report.

Westpac chief economist Luci Ellis said further increases are not the bank's base case, though the risk of a February move is rising, Savings.com.au reported. ANZ economists see a material chance that the cash rate reaches 5.10% in December or February.

Before the CPI release, Trading Economics noted that a November increase was widely seen as the likely peak of the cycle. Commonwealth Bank expects rate cuts to begin in late 2027 if inflation makes enough progress, according to Savings.com.au.

The RBA announces its decision on Nov. 3. Bond traders will look first at whether the bank keeps the door open to a further move to 5.10%, and then at the October monthly CPI, which would be the next test of whether long yields near 5.1% have fallen too far.