Australian shares weigh mining losses against oil gains ahead of Monday open

Australian shares weigh mining losses against oil gains ahead of Monday open

SYDNEY, July 20, 2026, 06:59 AEST

  • The S&P/ASX 200 (INDEXASX:XJO) ended Friday at 8,796.70, falling 0.50%. The index dropped 0.11% over the week.
  • Brent closed up 4.59% at US$88.10, while the Nasdaq Composite lost 1.40%.
  • China to review loan rates on Monday. Australia is set to release its June jobs data Thursday at 11:30 AEST.

Initial estimate: BHP Group was likely responsible for a reduction of about 27 index points on Friday. The overall energy sector contributed an approximate gain of six points.

BHP accounted for 11.27% of an index-tracking fund as of June 30, while the total sector weight for energy stood at 4.05%.

The disparity carries more weight than oil’s main surge. Brent climbed 4.59%, but miners retain the ability to influence the benchmark.

BHP dropped 2.71% to A$57.54 on Friday. The materials sector declined 2.91%, while energy advanced 1.66%.

The table reflects the index closing value from Thursday and weights as of June 30. Since BHP is part of materials, these rows should not be summed together.

ExposureJune 30 weightFriday movePreliminary index impact
BHP Group11.27%-2.71%-0.31 percentage point, or -27.0 points
Materials sector25.54%-2.91%-0.74 percentage point, or -65.7 points
Energy sector4.05%+1.66%+0.07 percentage point, or +5.9 points

The drag from materials was estimated to surpass the benchmark’s 44-point decline. Offsetting sectors, such as energy, contributed to trimming the loss by around 22 points, including six from energy.

At 06:59 AEST, Australia’s cash market had not yet opened. The Australian Securities Exchange begins its pre-open phase at 07:00, with continuous trading set to commence around 10:00.

The benchmark closed Friday at 8,796.70, a decrease of 0.50%. Over the week, it dipped 0.11%, marking a second straight week of losses.

“It is the ASX 200’s sixth consecutive week near this 8,800 level,” market analyst Tony Sycamore told AAP. Morningstar

Rio Tinto fell 2.39% on Friday. Woodside Energy climbed 2.9%, and Santos advanced 1.7%.

Wall Street delivered a subdued performance, with the S&P 500 declining 1.01% and the Nasdaq Composite losing 1.40%.

Brent finished at US$88.10 per barrel, gaining 4.59%. “It’s a very shaky environment right now,” said Michael James of Rosenblatt Securities. Reuters

China faces a key rate review on Monday, with all 23 analysts in a survey predicting that one- and five-year loan prime rates will stay at 3.00% and 3.50%.

China’s economic growth in the second quarter marked its weakest pace in over three years and fell short of expectations, highlighting ongoing demand concerns for mining companies.

Australia’s June labour-force figures are due Thursday at 11:30 AEST. The release is set to be the week’s primary domestic rates driver.

The numbers on weight indicate that oil by itself offers limited potential. Energy’s role in supporting the benchmark depends on stability among miners.

Risks: Broader disruption in the Strait of Hormuz could boost oil prices but weigh on transport and rate-sensitive stocks. If tensions ease, energy gains could retreat. Any unexpected Chinese rate decision or jobs data could shift the outlook.

Mateusz Kaczmarek

Mateusz Kaczmarek is a financial and technology journalist at TS2.tech, covering stocks, artificial intelligence, semiconductors and global market developments. A graduate of the Poznań University of Economics and Business, he previously worked in financial analysis before moving into business journalism. His reporting focuses on technology companies, market trends and the forces shaping global investment markets. Follow Mateusz Kaczmarek on Google News.

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