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ASX Slips as Energy Costs Lift Rate Hike Odds

By Stocks Desk · 2026-09-15 · 2 min read
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The S&P/ASX 200 declined 0.6% as rising oil prices fueled expectations of a Federal Reserve rate increase, weighing on banks and miners while tech stocks bucked the trend.

The Australian sharemarket closed lower on Tuesday, with the S&P/ASX 200 down 53.8 points, or 0.6 per cent, to 8696.10. Seven of the index’s eleven industry sectors declined, driven primarily by weakness in financials and materials. According to GN stocks/banks, the sell-off was triggered by surging energy costs that have intensified market expectations for a shift in US monetary policy.

Brent crude oil prices exceeded US$107 a barrel after the East-West pipeline in Saudi Arabia was shut following attacks, creating supply risks in the Middle East. This energy shock has pushed US bond yields to three-year highs. Traders are now pricing in a 92 per cent probability that the Federal Reserve will raise interest rates for the first time since 2023 during its upcoming meeting to combat inflation.

Financials and miners face cost pressures

Major banks absorbed the brunt of the decline as higher borrowing costs threatened to slow economic activity. Commonwealth Bank shares fell 1.0 per cent, while National Australia Bank and ANZ Bank both dropped 0.8 per cent. Westpac lagged slightly with a 0.7 per cent loss. These financial stocks constitute roughly one-third of the ASX 200, meaning their weakness significantly dragged down the broader index performance.

In the materials sector, rising energy inputs squeezed margins for major producers. BHP shares declined 2.1 per cent and Rio Tinto fell 1.6 per cent, while Fortescue Metals dropped 0.8 per cent. Gold miners suffered a sharper correction as bullion prices hovered near US$4,290 an ounce, a five-week low. Higher interest rates reduce the appeal of non-yielding assets like gold, leading to losses for Northern Star Resources (-3.4%), Evolution Mining (-3.7%), and Newmont (-2.5%).

Tech stocks defy Wall Street AI sell-off

Australian technology firms decoupled from the global AI sentiment that weighed on US markets overnight. While the Nasdaq composite fell 0.6 per cent due to concerns over AI valuations and calls for development slowdowns from industry leaders, local software and cloud stocks rose. Xero gained 2.8 per cent, Wisetech climbed 3.1 per cent, and Technology One added 1.3 per cent.

Megaport shares jumped 2.2 per cent and Life 360 rallied 7.0 per cent, indicating that Australian tech equities are currently trading based on domestic fundamentals rather than the speculative fears gripping US AI-heavy names. This divergence highlights a distinct resilience in the ASX tech sector compared to its counterparts on Wall Street, where Nvidia fell 3.4 per cent and SoftBank lost 10.7 per cent.

Global markets react to policy risks

The risk-off sentiment extended to Asia, where the Kospi index in South Korea dropped 3.3 per cent. The decline was driven by losses in memory chipmakers Samsung Electronics and SK Hynix, which face similar headwinds from rising interest rates and hardware costs. The Australian dollar traded at US71.36¢, reflecting the broader global shift toward higher yields.

Investors are closely watching the Federal Reserve's decision, as a rate hike would mark the first increase in three years. The combination of persistent inflation driven by oil prices and strong US labor data has shifted the consensus from rate cuts to hikes. For ASX-listed companies, this environment increases the cost of debt and reduces the present value of future cash flows, particularly affecting capital-intensive sectors like mining and finance.

Based on reporting by SMH.com.au, compiled by the Tradingbird desk.

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