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Global Tensions Set to Weigh on ASX as Oil and Bond Yields Rise

Published 21 September 2026
Global Tensions Set to Weigh on ASX as Oil and Bond Yields Rise

Middle East tensions, higher oil prices and rising global borrowing costs could add pressure to Australian equities as investors reassess inflation and interest-rate risks

Australian shares could face fresh pressure as global markets contend with renewed geopolitical tensions, higher oil prices and rising government bond yields. Wall Street ended the week on a mixed note after a volatile period that included a US Federal Reserve rate increase, while European markets finished sharply lower. Against that backdrop, ASX 200 futures were pointing to a decline of around 0.7%, suggesting a weaker start for the local market.

The latest market moves reflect a combination of concerns rather than a single driver. Ongoing conflict in the Middle East has pushed crude prices back above US$100 a barrel, while higher US Treasury yields are increasing global borrowing costs and adding pressure to equity valuations.

Oil prices raise fresh inflation concerns

The continued disruption around key Middle Eastern energy routes remains a major concern for global markets. Crude prices settled above US$100 a barrel, although they eased from their session highs after China urged Iran to limit attacks by Houthi forces on Saudi oil infrastructure.

The increase in oil prices is already affecting refined fuel markets. US diesel prices have reached record levels, creating the potential for higher costs across sectors including agriculture, transport and shipping. For Australia, sustained increases in energy prices could add to household expenses and business costs while making the inflation outlook more difficult.

Higher inflation expectations can also influence interest-rate expectations, creating another source of pressure for equity markets.

Rising bond yields add to market pressure

The rise in oil prices has coincided with higher global bond yields. US Treasury yields have climbed as markets price in a greater chance of another Federal Reserve rate increase.

The US 10-year Treasury yield reached 5.041%, its highest level since 2007, while the two-year yield rose to its highest level in more than two years. Higher government bond yields can increase borrowing costs across financial markets and place additional pressure on companies whose valuations depend heavily on future earnings.

European equities also came under pressure, with Germany's DAX falling 1.6%, the UK's FTSE 100 declining 1.5% and the Euro Stoxx 600 losing 1.2%.

Commodities provide some support

Despite the broader market pressure, some commodities continued to perform strongly. Gold edged higher, while copper recorded its fourth consecutive session of gains on the London Metal Exchange.

The Australian dollar also managed to post a small gain against the US dollar, despite the stronger greenback and rising bond yields.

What it means for investors

For investors, the key issue is whether the combination of higher oil prices, elevated bond yields and geopolitical uncertainty remains temporary or develops into a more persistent market headwind. Rising energy costs could increase inflation pressure and influence expectations for interest rates, while higher bond yields can weigh on equity valuations.

Within the ASX, the impact may differ across sectors. Resource and energy companies could remain sensitive to commodity prices, while companies more exposed to borrowing costs and domestic consumer demand may face a different set of pressures. The direction of oil prices, US Treasury yields and global risk sentiment will therefore remain important signals for Australian investors.

 

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