Overnight

Australia's Reserve Bank joined a synchronized wave of monetary tightening on Tuesday, lifting the cash rate to 4.6%—its highest level in 15 years—as energy-driven inflation kept central banks on edge. The decision marked the fourth rate hike of the year, with RBA officials signalling more moves may follow in November as they wrestle with the fallout from Middle East unrest reshaping global oil markets.

Cross the Pacific, the US 30-year Treasury yield pierced 5.612% intraday, a level unseen since June 2002. The 10-year benchmark climbed to 5.293%, near its highest since 2007, as investors repriced expectations for sticky inflation and longer-term interest rates. The move reflected not just the RBA decision but the cumulative weight of the BoJ's September 18 rate increase—to 1.25%, highest since 1995—and lingering Fed tightening signals.

Asia and Europe

Hong Kong's stock market pulled back on this sentiment. The Hang Seng Index slipped 0.63% on 29 September, with the tech-heavy Hang Seng Tech Index falling 1.37% as regional equities digested the prospect of higher borrowing costs. China and Asia-Pacific benchmarks took similar hits, though energy majors provided some cushion against the broader sell-off.

The synchronized tightening cycle now includes the Reserve Bank of Australia, the Bank of Japan, the European Central Bank, and the US Federal Reserve all in various phases of rate hikes. Economists flagged the risk of a self-reinforcing slowdown: higher rates cool demand, damp inflation, but also crimp growth—a calculus central banks must balance session to session.

FX, rates and commodities

Commodity prices reflected the mixed picture. Energy markets remained elevated on Middle East supply concerns, offsetting some weakness from demand-destruction fears. The Australian dollar and Japanese yen absorbed volatility as investors reset rate expectations. Asian currencies traded choppy, with the Hong Kong dollar firm against most G-10 counterparts, insulated by its peg to the US dollar.

The day ahead

The US employment report and inflation data land this week, putting new pressure on the Fed's November decision. Markets are pricing in the chance of further hikes if labour and price readings miss expectations on the high side. Meanwhile, Chinese manufacturing data due Friday will tell whether Asia's largest economy is feeling the transmission of higher regional rates.

One number

4.60% — Australia's cash rate, now at its 15-year high. The increase reflects a 250-basis-point cycle of tightening since May 2024, when the RBA began lifting rates from a near-zero base.

One read

Reuters' analysis of how energy shocks are forcing central banks to weigh inflation against growth. The piece illustrates why the BoJ's earlier rate hikes, once seen as solo moves by a dovish outlier, now sit within a broader global shift toward tightening.

Filed under: central-banks [rates inflation] markets

O

Oliver Grant

Markets & Macro Editor

Covers listed markets, rates and the plumbing between them. A decade of financial desks taught him to read rallies with suspicion and sell-offs with a notebook.