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Australian shares slip as miners and banks drag ahead of inflation data

Australian shares slip as miners and banks drag ahead of inflation data
Markets · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Jul 28, 2026 3 min read

Australia's stock market slipped on Tuesday, with the S&P/ASX 200 falling 0.3% as weakness in mining and banking stocks outweighed gains elsewhere. The decline came as investors adopted a cautious stance ahead of a key inflation report due Wednesday, and as lower oil prices weighed on energy shares.

Miners and banks lead the decline

The benchmark index gave back some of Monday's rebound, with the heaviest selling concentrated in the country's largest sectors. Mining stocks slid after iron ore prices softened, reflecting seasonally weaker demand from China, the world's top steel producer. Shares of Rio Tinto and BHP both moved lower, while gold miners also fell as bullion prices dipped.

Financial stocks added to the pressure. Australia's 'Big Four' banks—Commonwealth Bank, Westpac, NAB, and ANZ—all declined as traders positioned ahead of the second-quarter inflation report. That data could shift expectations for the Reserve Bank of Australia's next policy move, with any upside surprise potentially reigniting rate hike fears.

Energy stocks also struggled as oil prices retreated. The drop in crude followed recent volatility in global commodity markets, with traders weighing demand concerns against supply dynamics. The broader energy sector's decline mirrored a similar move in oil markets seen in other regions.

Inflation data in focus

All eyes are now on Wednesday's quarterly inflation report, which will provide the clearest signal yet on whether price pressures are cooling enough for the RBA to consider cutting interest rates later this year. Economists expect the data to show a continued moderation, but any upside surprise could rattle markets.

The report comes at a time when Australian consumer confidence has hit a six-week low, reflecting ongoing anxiety about the cost of living and the path of interest rates. A higher-than-expected inflation reading would likely reinforce those fears and could push the RBA to keep rates higher for longer.

Investors are also watching global developments. In Asia, South Korean stocks have plunged on concerns about chip sector competition from China, while European markets were flat as a drop in oil lifted airline stocks but tech shares slid.

What it means for investors

For everyday investors, Tuesday's move is a reminder that markets remain sensitive to both domestic economic data and global commodity trends. The S&P/ASX 200's heavy weighting in mining and banking means that shifts in iron ore prices or interest rate expectations can have an outsized impact on the index.

With the inflation report due, volatility could pick up. If the data shows inflation cooling faster than expected, it could boost sentiment and lift bank stocks on hopes of earlier rate cuts. Conversely, a hot reading would likely pressure the market further, as it would reduce the chances of monetary easing and potentially hurt consumer spending.

Investors should also keep an eye on commodity markets. Iron ore's recent weakness reflects slower demand from China, where the property sector remains under pressure. Any further deterioration could weigh on mining stocks, which are a key driver of the Australian market.

In the meantime, the cautious tone is likely to persist until Wednesday's data provides more clarity. As always, a diversified portfolio can help weather such sector-specific swings.

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