ASX 200 gains for fourth month as miners like BHP ride global AI wave

The Australian equity market wrapped up a mixed trading session to notch its fourth straight month of gains in July, driven largely by a surge in materials stocks fueled by skyrocketing investor demand for copper—an critical raw material for the global rollout of artificial intelligence infrastructure. While the benchmark ASX 200 only posted a modest 0.1% gain, climbing 9.10 points to close at 8976.80, the performance marked a milestone for the local index that aligns with July’s historic reputation as one of the strongest calendar months for Australian equities. The broader All Ordinaries followed a similar trajectory, rising 14.30 points (0.16%) to settle at 9137.00, and the Australian dollar edged up to 70.32 U.S. cents by market close.

Of the 11 major sectors tracked on the ASX, only five finished the trading day in positive territory. The standout growth came from the materials sector, which has increasingly acted as a domestic proxy for the global AI trade. Mining giants BHP and Rio Tinto led the rally, with BHP shares climbing 1.96% to $60.31 and Rio Tinto jumping 1.28% to $170.57, as copper prices climbed on growing investor recognition of copper’s non-substitutable role in manufacturing AI data center hardware, power infrastructure, and semiconductor equipment.

Joseph Marassa, a strategist at Global X ETFs, explained that the local materials rally came on the heels of an overnight rally on the U.S. Nasdaq and a broad resurgence in investor optimism around AI development. “Materials continue to act as a local proxy for the AI trade, with investors seeking copper exposure – a key input to the AI build out – on the back of the overnight Nasdaq rally and renewed AI sentiment,” Marassa noted. Global tech markets echoed this optimism overnight: South Korea’s KOSPI index surged 17.91% led by major chip manufacturers SK Hynix and Samsung Electronics, while the U.S. Nasdaq 100 gained 3.36% to cap off a strong overnight trading session.

The strong gains in materials were largely offset by downturns in defensive sectors, however. Healthcare stocks led the declines, with vaccine and biotech giant CSL dropping 3.81% to $123.06, Sigma Healthcare sliding 0.68% to $2.94, and medical device maker ResMed falling 1.52% to $29.79. Consumer staples also faced broad pressure, with major domestic supermarket chains both closing in the red: Woolworths dropped 1.73% to $39.77, while Coles slipped 0.70% to $24.09. Dairy producer A2 Milk also underperformed, dragging down 2.55% to $6.89.

Despite the muted daily gain, market analysts highlighted that the ASX 200’s July performance delivered a solid 2.37% monthly return, not far off the 2.73% average July gain recorded over the past 10 years, reinforcing the month’s long-held reputation as the strongest for Australian equities. IG senior Market Analyst Tony Sycamore noted that the four-month winning streak has been supported by a combination of domestic macroeconomic factors and global sentiment shifts. “The ASX200’s gains this week have been supported by the cooler Australian inflation report for June and a more measured tone from the RBA Governor on Tuesday, which reinforced expectations the cash rate will remain at 4.35 per cent next month,” Sycamore explained, adding that “Solid trading updates from two of the major miners added further support.”

In individual company news, several firms posted strong gains on positive corporate updates. Medical technology firm 4D Medical saw its shares jump 13.08% to $3.63 after releasing its quarterly activity report, which showed operating revenue hit $7.2 million, a 23% year-on-year increase. Energy giant Origin Energy added 0.94% to $10.76 after reporting that its June quarter revenue rose 6% from the prior quarter to $1.96 billion. The biggest single-day gain went to Energy One, whose shares rocketed 31.80% to $14.30 after the company revealed it had received an unsolicited, indicative, conditional acquisition proposal from Norwegian energy technology firm Volue AS.