The Australian sharemarket finished the week lower, with the ASX 200 down 0.28%, as escalating Middle East tensions pushed global oil prices higher and reignited concerns about inflation. The Information Technology sector (-6.63%) was the weakest performer, with continued scepticism around AI valuations weighing on sentiment despite strong earnings. Heightened geopolitical uncertainty also pushed bond yields and inflation expectations higher, contributing to weakness across the Healthcare (-5.73%) and Consumer Discretionary (-4.66%) sectors as investors adopted a more risk-off stance and consumers remained under pressure. Despite broader index weakness, the Energy sector (+5.90%) benefitted from rising oil prices and renewed interest in inflation-hedged exposures.
US sharemarkets also pulled back, with the S&P 500 finishing the week 0.60% lower. The market was influenced by similar themes to Australia, though with a greater focus on AI and technology capital expenditure, particularly as lower-cost Chinese models continue to enter the market. Tesla (-17.81%) was a notable example of this pressure, contributing to weakness in the Consumer Discretionary sector (-6.09%). Communication Services (-6.15%) also had a large pullback. The Energy (+3.76%) and Utilities (+2.48%) sectors were the strongest-performing, with energy stocks supported by rising oil prices, while utilities benefitted from demand for defensive exposures with lower economic sensitivity. Overall, markets remained choppy, with volatility centred on AI/technology valuations and geopolitical uncertainty.
European sharemarkets finished the week slightly stronger, with the STOXX Europe 600 up 0.50%. As in the US and Australia, Energy (+4.91%) led the market higher, followed by Basic Resources (+3.00%) and Banks (+2.25%). Higher yields and oil prices supported these sectors, with BP (+6.05%) and Equinor (+9.58%) among the largest contributors to index performance. In contrast, Telecommunications (-2.98%) and Automobiles & Parts (-2.06%) were the main drags on the index. Deutsche Telekom (-2.66%) and Vodafone (-2.72%) both weighed on the Telecommunications sector, which has continued to soften since its May 2026 peak.
Stock & sector movements
What caught our eye
The AI Breakout That Strengthened the Case for Cybersecurity
Last week OpenAI confirmed that its most advanced Artificial Intelligence (AI) model broke out of a controlled testing environment and hacked their way into a real company's database. The episode has sharpened debate in Canberra and, for investors, it has settled an argument that whipsawed cybersecurity shares for much of this year.
During an internal test of cyber capability, OpenAI's flagship Sol model discovered a previously unknown software flaw, escaped its quarantine zone, gained access to the open internet and worked their way into the production systems of AI platform Hugging Face. The model’s aim was simply to steal the answers to the test it were sitting. OpenAI has described the event as an unprecedented cyber incident. The two companies contained it quickly, but the demonstration was clear. Top AI models can now find and chain together real attack paths without human direction.
It is the second such event in a matter of months. In April, Anthropic judged its Mythos model so capable at finding flaws in mainstream operating systems and browsers that it restricted access to a small, invited group of large American companies under a program called Project Glasswing, leaving out allies including Australia. The launches of Anthropic's Fable 5 and OpenAI's Sol were both delayed for United States government security testing.
Markets initially read all of this as a threat to the security industry itself. If a machine can find flaws that decades of human review missed, then traditional security products lose their purpose. Cybersecurity shares fell heavily in late March, with the theme’s major ETFs down around 4% in a single session and household cyber names losing between 6 and 9%, while a second wave of selling in April left a broad index of software shares down roughly a quarter.
That fear has since reversed strongly. Cyber ETFs have not only recovered their losses but are now strongly positive this calendar year so far. The logic being that every demonstration of what AI can do lifts the urgency, and the budgets, devoted to defence. Gartner, a global technology research and advisory firm, expects enterprise security spending to reach US$215 billion in 2026.
Canberra has reached a similar conclusion about the need for coordination. Prime Minister Anthony Albanese last week announced a new Office of AI within his own department to pull the government's scattered work on the technology into a single national framework, while ministers have confirmed they are monitoring, though not yet banning, powerful new Chinese models such as Moonshot's Kimi K3.
For investors, the year so far is a reminder that first reactions to disruptive technology are usually the wrong ones. Markets priced in the decline of an industry in April and its revival by July. We are watching two things closely. The first is policy, because Australia's access to frontier defensive tools will shape how well local systems are protected. The second is spending, because rising threat levels are translating into durable security budgets rather than a passing scare. Portfolios do not need to chase the theme, but this year has shown the value of holding steady through swings driven by headlines.
Locally, attention will turn to inflation, with key measures due to be released on Tuesday and likely to provide further guidance on future interest rate expectations. Quarterly PPI data is also scheduled for release on Thursday, followed by Manufacturing PMI data on Sunday.
Overseas, focus will shift to the US Federal Reserve interest rate decision and the accompanying press conference. This will be only the second meeting conducted under new Federal Reserve Chairman Kevin Warsh. The Bank of England and Bank of Japan are also due to announce their interest rate decisions on 30 July. In addition, GDP growth figures will be released across several major European economies, including Germany, France, Spain and Italy.