The ASX 200 has now shed nearly 3% across four straight sessions, closing Friday at 8,741 points in its second-worst weekly performance of 2026. Less than a month ago, in late August, the index was trading as high as 9,282 points.
The selloff was not a single-factor story. Oil pushed toward USD 108 per barrel, bond yields climbed on fresh rate-hike expectations after the European Central Bank moved the prior evening, and the materials sector went into open collapse.
Only four of the market’s eleven sectors finished in positive territory. Here is what drove each major move, what the sector damage tells you about where investor concern is concentrated, and what the next five trading days could bring for the direction of the ASX.
Materials in freefall as copper rout and rate anxiety combine
The materials sector fell 3.6% on 11 September 2026, the sharpest single-day sectoral move of the session. That was not an isolated wobble. It capped a weekly loss of nearly 4% and a month-to-date decline of roughly 6.5% for September so far.
Three forces stacked on top of one another to produce that damage.
- Daily move: -3.6%
- Weekly loss: approximately -4%
- September month-to-date: approximately -6.5%
- Copper overnight: approximately -5%
The proximate trigger was copper. Prices fell roughly 5% overnight into the session, compressing earnings expectations across the major miners and triggering risk-off positioning throughout the resources complex. BHP and Rio Tinto were both caught in the crossfire, weighed down by the copper move and broader weakness.
Gold and iron ore also declined, which is what turned a copper problem into a sector-wide one. When all three of the ASX’s most heavily traded commodities move lower together, the selling stops being about any single metal.
A 6.5% monthly drawdown in the ASX’s largest sector by index weight tells you something specific. Institutional investors are actively repricing the near-term earnings outlook for the miners, not simply rotating defensively for one session. If commodity prices deteriorate further, this pressure extends well beyond a single bad week and drags the headline index disproportionately.
What drove the copper selloff
Copper’s decline is more significant than the percentage alone suggests, because it came after the metal had recently reached a record high. A sharp reversal off a peak reads as a sentiment shift, not just a price correction.
The same US-Iran tension pushing oil higher was simultaneously feeding risk-off sentiment across industrial metals. Copper had been pricing in a strong demand recovery. Overnight, the market began withdrawing that assumption.
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GQG Partners hits a record low as USD 23.9 billion in outflows make the August numbers impossible to ignore
The August funds under management (FUM) update from GQG Partners told a plain story. Total FUM fell to USD 149.2 billion at the end of August, down from USD 156.4 billion at the end of July.
That USD 7.2 billion monthly decline broke down into two parts: USD 4.3 billion in net outflows and a USD 2.9 billion drag from negative investment performance. Clients pulled money, and the money that stayed lost value.
The number the market fixed on was the year-to-date figure.
USD 23.9 billion in net outflows through 31 August 2026, confirming the redemption trend has not stabilised.
| Period | Opening FUM | Net Outflows | Performance Impact | Closing FUM |
|---|---|---|---|---|
| August 2026 | USD 156.4B | -USD 4.3B | -USD 2.9B | USD 149.2B |
The share price response was swift. GQG fell 9.5% on the day, hitting a record low.
The prevailing analyst view frames this as a firm-specific challenge, a mix of reputational drag from underperformance against benchmarks and sustained client redemptions, rather than a broad rotation out of active managers. The problem sits with GQG, not the industry.
The GQG Partners underperformance story runs deeper than a single bad month; the firm delivered a negative 25% total shareholder return over the twelve months to July 2026 after CIO Rajiv Jain deliberately exited AI and technology holdings, leaving all four flagship funds trailing their benchmarks by double digits before the August redemption data compounded the damage.
For ASX investors holding the stock, the USD 23.9 billion figure is the one that matters most. Until the redemption trend stabilises, any valuation support from the company’s high margins or dividend stays secondary to the structural earnings compression that comes from a shrinking FUM base. GQG was among the index’s most-watched growth stories in 2024 and 2025, and its current drawdown shows how quickly a FUM-dependent earnings model reprices once client redemptions compound across multiple quarters.
Financials provide the session’s only real buffer as technology logs a fifth straight loss
Financials were the standout, up 1.1% on the day after three sessions of losses. Without that recovery, the index would have finished considerably worse.
The rate story explains both the financials bounce and the technology slide. They are mirror images.
Financials had been under pressure for three sessions on rate-hike fears. On Friday, those same expectations were partially re-read as a tailwind, on the logic that higher rates eventually widen bank net interest margins, the gap between what a bank earns on loans and pays on deposits.
Bank net interest margins, the gap between what a bank earns on loans and pays on deposits, widen when rate expectations rise because asset repricing on the loan book outpaces funding cost increases in the near term, which is why the same ECB-driven rate signal that punished technology valuations delivered a one-session recovery for ASX financials.
- IAG and Suncorp were among the session’s top individual performers
- Major banks rose between roughly 0.5% and 2.5%, with NAB recording the largest gain in the group
Technology moved the other way, falling around 2% in its fifth consecutive session of losses and finishing as the worst sector for the week. Its rate sensitivity comes from the discounted-cash-flow nature of growth-stock valuations. When rate expectations rise, the future earnings those stocks are priced on are worth less today.
| Sector | Daily Move | Direction |
|---|---|---|
| Financials | +1.1% | Positive |
| Industrials | +0.25% | Positive |
| Utilities | +0.25% | Positive |
| Consumer staples | Marginally higher | Positive |
| Energy | -0.7% | Negative |
| Technology | -2% | Negative |
| Materials | -3.6% | Negative |
Energy is worth a note here. The sector closed down 0.7% despite oil near USD 108 per barrel, surrendering earlier gains, which shows how firmly the risk-off mood overrode even a supportive commodity backdrop.
The financials-versus-technology split gives you a practical indicator. If the Fed hike probability climbs after tonight’s US inflation print, expect this same pattern to repeat, with banks potentially extending gains and rate-sensitive growth names absorbing further selling.
What to watch before the ASX opens Monday: CPI, the Fed, and China’s biggest data day of the month
Three catalysts sit between Friday’s close and next week, and they arrive in a specific order of impact.
- US CPI, due the evening of 11 September 2026 Australian time
- The Fed decision, expected Wednesday of the following week, local time
- China’s data day, Tuesday 15 September 2026
The consumer price index (CPI) print is the most immediate. Business inflation data the prior evening came in broadly in line with expectations but did nothing to ease concern about persistent price pressures. Markets are currently pricing the outcome cautiously.
Market pricing implied approximately a 60% probability of a US Federal Reserve rate hike at its next meeting, as at 11 September 2026.
The central bank sequence is already in motion. The ECB raised rates on 10 September 2026, the market is now watching the Fed, and the Reserve Bank of Australia rounds out the trifecta with its own decision scheduled for 29 September 2026. RBA officials spent the week flagging continued concern about elevated inflation.
Tonight’s CPI is the single number most likely to arrest or accelerate the losing streak. A softer read reduces that 60% probability and hands rate-sensitive sectors a relief window. A hotter read pushes the probability higher and puts another day of losses squarely on the table for Monday.
China’s data calendar and what it means for ASX resources
Tuesday 15 September 2026 is the most concentrated single day of Chinese economic data for the entire month. The releases include industrial production, fixed-asset investment, steel output, property figures, and credit and total social financing data.
Those numbers feed directly into demand forecasts for iron ore, coal, and copper, the three commodities most exposed in this week’s materials selloff.
Chinese industrial output grew 4.5% year-on-year in July, but that headline masked cement collapsing 11.6%, steel products falling 4.1%, and flat glass dropping 3.6%, meaning the aggregate figure investors typically monitor actively concealed a deepening construction-materials contraction directly relevant to iron ore and copper demand forecasts.
The scenario is binary. Stronger-than-expected industrial output and credit growth would act as a relief catalyst for the battered materials sector. Further weakness in the Chinese property data would instead confirm the commodity-demand concerns already baked into September’s 6.5% month-to-date decline.
Any weekend movement in the US-Iran situation is a fourth variable, capable of moving oil and risk sentiment before Monday’s open.
The US-Iran ceasefire rally of 29 May 2026 demonstrated how quickly the same geopolitical variable now compressing markets can reverse: the ASX surged 138.8 points in a single session as crude fell and risk appetite returned, with gold and materials leading, which is precisely why any weekend development in the US-Iran situation ranks as the fourth variable for Monday’s open.
A week that recalibrates the 2026 outlook without yet breaking it
The severity is real. A nearly 3% weekly loss is the second-worst week of 2026, and the materials damage cut deep across three sessions.
Second-worst week of 2026 at approximately -3%, against the year’s worst week of -3.8% in early March 2026, which coincided with the start of a major geopolitical conflict.
What the data does not yet confirm is a structural breakdown of the year’s bull case. The index remains roughly 2% higher for the calendar year despite a near-4% monthly decline, and the recent high of 9,282 points was set less than a month ago. The AUD/USD held at 71.7 US cents, while Brent finished near USD 108, up around 13% for the week.
This was a convergence of three compounding forces, oil, rates, and materials, each manageable alone but collectively enough to expose the market’s rate sensitivity.
The index sitting 2% higher for the year tells you the underlying trend has not reversed. But the momentum is real, and the CPI-Fed-China sequence ahead will decide whether this week marks the low of a cyclical pullback or the start of a longer repricing.
This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors.
